[IMP] web: Chart.js update

Update of Chart.js library to the latest version.
The onLeave listener was not avalaible in the previous version of the library.
This has also removed a bug in the graph view where
some groups were sometimes not shown in the legend.

1 files changed, 9781 insertions, 9557 deletions

diff --git a/addons/web/static/lib/Chart/Chart.js b/addons/web/static/lib/Chart/Chart.js
index 362e941851b..4c50e09b597 100644
--- a/addons/web/static/lib/Chart/Chart.js
+++ b/addons/web/static/lib/Chart/Chart.js
@@ -1,728 +1,20 @@
 /*!
- * Chart.js
- * http://chartjs.org/
- * Version: 2.7.3
- *
- * Copyright 2018 Chart.js Contributors
- * Released under the MIT license
- * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
+ * Chart.js v2.8.0
+ * https://www.chartjs.org
+ * (c) 2019 Chart.js Contributors
+ * Released under the MIT License
  */
-(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
-
-},{}],2:[function(require,module,exports){
-/* MIT license */
-var colorNames = require(6);
-
-module.exports = {
-   getRgba: getRgba,
-   getHsla: getHsla,
-   getRgb: getRgb,
-   getHsl: getHsl,
-   getHwb: getHwb,
-   getAlpha: getAlpha,
-
-   hexString: hexString,
-   rgbString: rgbString,
-   rgbaString: rgbaString,
-   percentString: percentString,
-   percentaString: percentaString,
-   hslString: hslString,
-   hslaString: hslaString,
-   hwbString: hwbString,
-   keyword: keyword
-}
-
-function getRgba(string) {
-   if (!string) {
-      return;
-   }
-   var abbr =  /^#([a-fA-F0-9]{3})$/i,
-       hex =  /^#([a-fA-F0-9]{6})$/i,
-       rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
-       per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
-       keyword = /(\w+)/;
-
-   var rgb = [0, 0, 0],
-       a = 1,
-       match = string.match(abbr);
-   if (match) {
-      match = match[1];
-      for (var i = 0; i < rgb.length; i++) {
-         rgb[i] = parseInt(match[i] + match[i], 16);
-      }
-   }
-   else if (match = string.match(hex)) {
-      match = match[1];
-      for (var i = 0; i < rgb.length; i++) {
-         rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
-      }
-   }
-   else if (match = string.match(rgba)) {
-      for (var i = 0; i < rgb.length; i++) {
-         rgb[i] = parseInt(match[i + 1]);
-      }
-      a = parseFloat(match[4]);
-   }
-   else if (match = string.match(per)) {
-      for (var i = 0; i < rgb.length; i++) {
-         rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
-      }
-      a = parseFloat(match[4]);
-   }
-   else if (match = string.match(keyword)) {
-      if (match[1] == "transparent") {
-         return [0, 0, 0, 0];
-      }
-      rgb = colorNames[match[1]];
-      if (!rgb) {
-         return;
-      }
-   }
-
-   for (var i = 0; i < rgb.length; i++) {
-      rgb[i] = scale(rgb[i], 0, 255);
-   }
-   if (!a && a != 0) {
-      a = 1;
-   }
-   else {
-      a = scale(a, 0, 1);
-   }
-   rgb[3] = a;
-   return rgb;
-}
-
-function getHsla(string) {
-   if (!string) {
-      return;
-   }
-   var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
-   var match = string.match(hsl);
-   if (match) {
-      var alpha = parseFloat(match[4]);
-      var h = scale(parseInt(match[1]), 0, 360),
-          s = scale(parseFloat(match[2]), 0, 100),
-          l = scale(parseFloat(match[3]), 0, 100),
-          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
-      return [h, s, l, a];
-   }
-}
-
-function getHwb(string) {
-   if (!string) {
-      return;
-   }
-   var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
-   var match = string.match(hwb);
-   if (match) {
-    var alpha = parseFloat(match[4]);
-      var h = scale(parseInt(match[1]), 0, 360),
-          w = scale(parseFloat(match[2]), 0, 100),
-          b = scale(parseFloat(match[3]), 0, 100),
-          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
-      return [h, w, b, a];
-   }
-}
-
-function getRgb(string) {
-   var rgba = getRgba(string);
-   return rgba && rgba.slice(0, 3);
-}
-
-function getHsl(string) {
-  var hsla = getHsla(string);
-  return hsla && hsla.slice(0, 3);
-}
-
-function getAlpha(string) {
-   var vals = getRgba(string);
-   if (vals) {
-      return vals[3];
-   }
-   else if (vals = getHsla(string)) {
-      return vals[3];
-   }
-   else if (vals = getHwb(string)) {
-      return vals[3];
-   }
-}
-
-// generators
-function hexString(rgb) {
-   return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
-              + hexDouble(rgb[2]);
-}
-
-function rgbString(rgba, alpha) {
-   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
-      return rgbaString(rgba, alpha);
-   }
-   return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
-}
-
-function rgbaString(rgba, alpha) {
-   if (alpha === undefined) {
-      alpha = (rgba[3] !== undefined ? rgba[3] : 1);
-   }
-   return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
-           + ", " + alpha + ")";
-}
-
-function percentString(rgba, alpha) {
-   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
-      return percentaString(rgba, alpha);
-   }
-   var r = Math.round(rgba[0]/255 * 100),
-       g = Math.round(rgba[1]/255 * 100),
-       b = Math.round(rgba[2]/255 * 100);
-
-   return "rgb(" + r + "%, " + g + "%, " + b + "%)";
-}
-
-function percentaString(rgba, alpha) {
-   var r = Math.round(rgba[0]/255 * 100),
-       g = Math.round(rgba[1]/255 * 100),
-       b = Math.round(rgba[2]/255 * 100);
-   return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
-}
-
-function hslString(hsla, alpha) {
-   if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
-      return hslaString(hsla, alpha);
-   }
-   return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
-}
-
-function hslaString(hsla, alpha) {
-   if (alpha === undefined) {
-      alpha = (hsla[3] !== undefined ? hsla[3] : 1);
-   }
-   return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
-           + alpha + ")";
-}
-
-// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
-// (hwb have alpha optional & 1 is default value)
-function hwbString(hwb, alpha) {
-   if (alpha === undefined) {
-      alpha = (hwb[3] !== undefined ? hwb[3] : 1);
-   }
-   return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
-           + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
-}
-
-function keyword(rgb) {
-  return reverseNames[rgb.slice(0, 3)];
-}
-
-// helpers
-function scale(num, min, max) {
-   return Math.min(Math.max(min, num), max);
-}
-
-function hexDouble(num) {
-  var str = num.toString(16).toUpperCase();
-  return (str.length < 2) ? "0" + str : str;
-}
-
-
-//create a list of reverse color names
-var reverseNames = {};
-for (var name in colorNames) {
-   reverseNames[colorNames[name]] = name;
-}
-
-},{"6":6}],3:[function(require,module,exports){
-/* MIT license */
-var convert = require(5);
-var string = require(2);
-
-var Color = function (obj) {
-	if (obj instanceof Color) {
-		return obj;
-	}
-	if (!(this instanceof Color)) {
-		return new Color(obj);
-	}
-
-	this.valid = false;
-	this.values = {
-		rgb: [0, 0, 0],
-		hsl: [0, 0, 0],
-		hsv: [0, 0, 0],
-		hwb: [0, 0, 0],
-		cmyk: [0, 0, 0, 0],
-		alpha: 1
-	};
-
-	// parse Color() argument
-	var vals;
-	if (typeof obj === 'string') {
-		vals = string.getRgba(obj);
-		if (vals) {
-			this.setValues('rgb', vals);
-		} else if (vals = string.getHsla(obj)) {
-			this.setValues('hsl', vals);
-		} else if (vals = string.getHwb(obj)) {
-			this.setValues('hwb', vals);
-		}
-	} else if (typeof obj === 'object') {
-		vals = obj;
-		if (vals.r !== undefined || vals.red !== undefined) {
-			this.setValues('rgb', vals);
-		} else if (vals.l !== undefined || vals.lightness !== undefined) {
-			this.setValues('hsl', vals);
-		} else if (vals.v !== undefined || vals.value !== undefined) {
-			this.setValues('hsv', vals);
-		} else if (vals.w !== undefined || vals.whiteness !== undefined) {
-			this.setValues('hwb', vals);
-		} else if (vals.c !== undefined || vals.cyan !== undefined) {
-			this.setValues('cmyk', vals);
-		}
-	}
-};
-
-Color.prototype = {
-	isValid: function () {
-		return this.valid;
-	},
-	rgb: function () {
-		return this.setSpace('rgb', arguments);
-	},
-	hsl: function () {
-		return this.setSpace('hsl', arguments);
-	},
-	hsv: function () {
-		return this.setSpace('hsv', arguments);
-	},
-	hwb: function () {
-		return this.setSpace('hwb', arguments);
-	},
-	cmyk: function () {
-		return this.setSpace('cmyk', arguments);
-	},
-
-	rgbArray: function () {
-		return this.values.rgb;
-	},
-	hslArray: function () {
-		return this.values.hsl;
-	},
-	hsvArray: function () {
-		return this.values.hsv;
-	},
-	hwbArray: function () {
-		var values = this.values;
-		if (values.alpha !== 1) {
-			return values.hwb.concat([values.alpha]);
-		}
-		return values.hwb;
-	},
-	cmykArray: function () {
-		return this.values.cmyk;
-	},
-	rgbaArray: function () {
-		var values = this.values;
-		return values.rgb.concat([values.alpha]);
-	},
-	hslaArray: function () {
-		var values = this.values;
-		return values.hsl.concat([values.alpha]);
-	},
-	alpha: function (val) {
-		if (val === undefined) {
-			return this.values.alpha;
-		}
-		this.setValues('alpha', val);
-		return this;
-	},
-
-	red: function (val) {
-		return this.setChannel('rgb', 0, val);
-	},
-	green: function (val) {
-		return this.setChannel('rgb', 1, val);
-	},
-	blue: function (val) {
-		return this.setChannel('rgb', 2, val);
-	},
-	hue: function (val) {
-		if (val) {
-			val %= 360;
-			val = val < 0 ? 360 + val : val;
-		}
-		return this.setChannel('hsl', 0, val);
-	},
-	saturation: function (val) {
-		return this.setChannel('hsl', 1, val);
-	},
-	lightness: function (val) {
-		return this.setChannel('hsl', 2, val);
-	},
-	saturationv: function (val) {
-		return this.setChannel('hsv', 1, val);
-	},
-	whiteness: function (val) {
-		return this.setChannel('hwb', 1, val);
-	},
-	blackness: function (val) {
-		return this.setChannel('hwb', 2, val);
-	},
-	value: function (val) {
-		return this.setChannel('hsv', 2, val);
-	},
-	cyan: function (val) {
-		return this.setChannel('cmyk', 0, val);
-	},
-	magenta: function (val) {
-		return this.setChannel('cmyk', 1, val);
-	},
-	yellow: function (val) {
-		return this.setChannel('cmyk', 2, val);
-	},
-	black: function (val) {
-		return this.setChannel('cmyk', 3, val);
-	},
-
-	hexString: function () {
-		return string.hexString(this.values.rgb);
-	},
-	rgbString: function () {
-		return string.rgbString(this.values.rgb, this.values.alpha);
-	},
-	rgbaString: function () {
-		return string.rgbaString(this.values.rgb, this.values.alpha);
-	},
-	percentString: function () {
-		return string.percentString(this.values.rgb, this.values.alpha);
-	},
-	hslString: function () {
-		return string.hslString(this.values.hsl, this.values.alpha);
-	},
-	hslaString: function () {
-		return string.hslaString(this.values.hsl, this.values.alpha);
-	},
-	hwbString: function () {
-		return string.hwbString(this.values.hwb, this.values.alpha);
-	},
-	keyword: function () {
-		return string.keyword(this.values.rgb, this.values.alpha);
-	},
-
-	rgbNumber: function () {
-		var rgb = this.values.rgb;
-		return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
-	},
-
-	luminosity: function () {
-		// http://www.w3.org/TR/WCAG20/#relativeluminancedef
-		var rgb = this.values.rgb;
-		var lum = [];
-		for (var i = 0; i < rgb.length; i++) {
-			var chan = rgb[i] / 255;
-			lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
-		}
-		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
-	},
-
-	contrast: function (color2) {
-		// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
-		var lum1 = this.luminosity();
-		var lum2 = color2.luminosity();
-		if (lum1 > lum2) {
-			return (lum1 + 0.05) / (lum2 + 0.05);
-		}
-		return (lum2 + 0.05) / (lum1 + 0.05);
-	},
-
-	level: function (color2) {
-		var contrastRatio = this.contrast(color2);
-		if (contrastRatio >= 7.1) {
-			return 'AAA';
-		}
-
-		return (contrastRatio >= 4.5) ? 'AA' : '';
-	},
-
-	dark: function () {
-		// YIQ equation from http://24ways.org/2010/calculating-color-contrast
-		var rgb = this.values.rgb;
-		var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
-		return yiq < 128;
-	},
-
-	light: function () {
-		return !this.dark();
-	},
-
-	negate: function () {
-		var rgb = [];
-		for (var i = 0; i < 3; i++) {
-			rgb[i] = 255 - this.values.rgb[i];
-		}
-		this.setValues('rgb', rgb);
-		return this;
-	},
-
-	lighten: function (ratio) {
-		var hsl = this.values.hsl;
-		hsl[2] += hsl[2] * ratio;
-		this.setValues('hsl', hsl);
-		return this;
-	},
-
-	darken: function (ratio) {
-		var hsl = this.values.hsl;
-		hsl[2] -= hsl[2] * ratio;
-		this.setValues('hsl', hsl);
-		return this;
-	},
-
-	saturate: function (ratio) {
-		var hsl = this.values.hsl;
-		hsl[1] += hsl[1] * ratio;
-		this.setValues('hsl', hsl);
-		return this;
-	},
-
-	desaturate: function (ratio) {
-		var hsl = this.values.hsl;
-		hsl[1] -= hsl[1] * ratio;
-		this.setValues('hsl', hsl);
-		return this;
-	},
-
-	whiten: function (ratio) {
-		var hwb = this.values.hwb;
-		hwb[1] += hwb[1] * ratio;
-		this.setValues('hwb', hwb);
-		return this;
-	},
-
-	blacken: function (ratio) {
-		var hwb = this.values.hwb;
-		hwb[2] += hwb[2] * ratio;
-		this.setValues('hwb', hwb);
-		return this;
-	},
-
-	greyscale: function () {
-		var rgb = this.values.rgb;
-		// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
-		var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
-		this.setValues('rgb', [val, val, val]);
-		return this;
-	},
-
-	clearer: function (ratio) {
-		var alpha = this.values.alpha;
-		this.setValues('alpha', alpha - (alpha * ratio));
-		return this;
-	},
-
-	opaquer: function (ratio) {
-		var alpha = this.values.alpha;
-		this.setValues('alpha', alpha + (alpha * ratio));
-		return this;
-	},
-
-	rotate: function (degrees) {
-		var hsl = this.values.hsl;
-		var hue = (hsl[0] + degrees) % 360;
-		hsl[0] = hue < 0 ? 360 + hue : hue;
-		this.setValues('hsl', hsl);
-		return this;
-	},
-
-	/**
-	 * Ported from sass implementation in C
-	 * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
-	 */
-	mix: function (mixinColor, weight) {
-		var color1 = this;
-		var color2 = mixinColor;
-		var p = weight === undefined ? 0.5 : weight;
-
-		var w = 2 * p - 1;
-		var a = color1.alpha() - color2.alpha();
-
-		var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
-		var w2 = 1 - w1;
-
-		return this
-			.rgb(
-				w1 * color1.red() + w2 * color2.red(),
-				w1 * color1.green() + w2 * color2.green(),
-				w1 * color1.blue() + w2 * color2.blue()
-			)
-			.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
-	},
-
-	toJSON: function () {
-		return this.rgb();
-	},
-
-	clone: function () {
-		// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
-		// making the final build way to big to embed in Chart.js. So let's do it manually,
-		// assuming that values to clone are 1 dimension arrays containing only numbers,
-		// except 'alpha' which is a number.
-		var result = new Color();
-		var source = this.values;
-		var target = result.values;
-		var value, type;
-
-		for (var prop in source) {
-			if (source.hasOwnProperty(prop)) {
-				value = source[prop];
-				type = ({}).toString.call(value);
-				if (type === '[object Array]') {
-					target[prop] = value.slice(0);
-				} else if (type === '[object Number]') {
-					target[prop] = value;
-				} else {
-					console.error('unexpected color value:', value);
-				}
-			}
-		}
-
-		return result;
-	}
-};
-
-Color.prototype.spaces = {
-	rgb: ['red', 'green', 'blue'],
-	hsl: ['hue', 'saturation', 'lightness'],
-	hsv: ['hue', 'saturation', 'value'],
-	hwb: ['hue', 'whiteness', 'blackness'],
-	cmyk: ['cyan', 'magenta', 'yellow', 'black']
-};
-
-Color.prototype.maxes = {
-	rgb: [255, 255, 255],
-	hsl: [360, 100, 100],
-	hsv: [360, 100, 100],
-	hwb: [360, 100, 100],
-	cmyk: [100, 100, 100, 100]
-};
-
-Color.prototype.getValues = function (space) {
-	var values = this.values;
-	var vals = {};
-
-	for (var i = 0; i < space.length; i++) {
-		vals[space.charAt(i)] = values[space][i];
-	}
-
-	if (values.alpha !== 1) {
-		vals.a = values.alpha;
-	}
-
-	// {r: 255, g: 255, b: 255, a: 0.4}
-	return vals;
-};
-
-Color.prototype.setValues = function (space, vals) {
-	var values = this.values;
-	var spaces = this.spaces;
-	var maxes = this.maxes;
-	var alpha = 1;
-	var i;
-
-	this.valid = true;
-
-	if (space === 'alpha') {
-		alpha = vals;
-	} else if (vals.length) {
-		// [10, 10, 10]
-		values[space] = vals.slice(0, space.length);
-		alpha = vals[space.length];
-	} else if (vals[space.charAt(0)] !== undefined) {
-		// {r: 10, g: 10, b: 10}
-		for (i = 0; i < space.length; i++) {
-			values[space][i] = vals[space.charAt(i)];
-		}
-
-		alpha = vals.a;
-	} else if (vals[spaces[space][0]] !== undefined) {
-		// {red: 10, green: 10, blue: 10}
-		var chans = spaces[space];
-
-		for (i = 0; i < space.length; i++) {
-			values[space][i] = vals[chans[i]];
-		}
-
-		alpha = vals.alpha;
-	}
-
-	values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
-
-	if (space === 'alpha') {
-		return false;
-	}
-
-	var capped;
-
-	// cap values of the space prior converting all values
-	for (i = 0; i < space.length; i++) {
-		capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
-		values[space][i] = Math.round(capped);
-	}
-
-	// convert to all the other color spaces
-	for (var sname in spaces) {
-		if (sname !== space) {
-			values[sname] = convert[space][sname](values[space]);
-		}
-	}
-
-	return true;
-};
-
-Color.prototype.setSpace = function (space, args) {
-	var vals = args[0];
-
-	if (vals === undefined) {
-		// color.rgb()
-		return this.getValues(space);
-	}
-
-	// color.rgb(10, 10, 10)
-	if (typeof vals === 'number') {
-		vals = Array.prototype.slice.call(args);
-	}
-
-	this.setValues(space, vals);
-	return this;
-};
-
-Color.prototype.setChannel = function (space, index, val) {
-	var svalues = this.values[space];
-	if (val === undefined) {
-		// color.red()
-		return svalues[index];
-	} else if (val === svalues[index]) {
-		// color.red(color.red())
-		return this;
-	}
+(function (global, factory) {
+typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(function() { try { return require('moment'); } catch(e) { } }()) :
+typeof define === 'function' && define.amd ? define(['require'], function(require) { return factory(function() { try { return require('moment'); } catch(e) { } }()); }) :
+(global.Chart = factory(global.moment));
+}(this, (function (moment) { 'use strict';
 
-	// color.red(100)
-	svalues[index] = val;
-	this.setValues(space, svalues);
+moment = moment && moment.hasOwnProperty('default') ? moment['default'] : moment;
 
-	return this;
-};
-
-if (typeof window !== 'undefined') {
-	window.Color = Color;
-}
-
-module.exports = Color;
-
-},{"2":2,"5":5}],4:[function(require,module,exports){
 /* MIT license */
 
-module.exports = {
+var conversions = {
   rgb2hsl: rgb2hsl,
   rgb2hsv: rgb2hsv,
   rgb2hwb: rgb2hwb,
@@ -775,7 +67,7 @@ module.exports = {
   lch2lab: lch2lab,
   lch2xyz: lch2xyz,
   lch2rgb: lch2rgb
-}
+};
 
 
 function rgb2hsl(rgb) {
@@ -1419,12 +711,9 @@ for (var key in cssKeywords) {
   reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
 }
 
-},{}],5:[function(require,module,exports){
-var conversions = require(4);
-
 var convert = function() {
    return new Converter();
-}
+};
 
 for (var func in conversions) {
   // export Raw versions
@@ -1508,14 +797,12 @@ Converter.prototype.getValues = function(space) {
 ["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
    Converter.prototype[space] = function(vals) {
       return this.routeSpace(space, arguments);
-   }
+   };
 });
 
-module.exports = convert;
-},{"4":4}],6:[function(require,module,exports){
-'use strict'

-

-module.exports = {

+var colorConvert = convert;
+
+var colorName = {

 	"aliceblue": [240, 248, 255],

 	"antiquewhite": [250, 235, 215],

 	"aqua": [0, 255, 255],

@@ -1664,1999 +951,1860 @@ module.exports = {
 	"whitesmoke": [245, 245, 245],

 	"yellow": [255, 255, 0],

 	"yellowgreen": [154, 205, 50]

-};

+};
 
-},{}],7:[function(require,module,exports){
-/**
- * @namespace Chart
- */
-var Chart = require(30)();
+/* MIT license */
 
-Chart.helpers = require(46);
 
-// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
-require(28)(Chart);
-
-Chart.Animation = require(22);
-Chart.animationService = require(23);
-Chart.defaults = require(26);
-Chart.Element = require(27);
-Chart.elements = require(41);
-Chart.Interaction = require(29);
-Chart.layouts = require(31);
-Chart.platform = require(49);
-Chart.plugins = require(32);
-Chart.Scale = require(33);
-Chart.scaleService = require(34);
-Chart.Ticks = require(35);
-Chart.Tooltip = require(36);
-
-require(24)(Chart);
-require(25)(Chart);
-
-require(56)(Chart);
-require(54)(Chart);
-require(55)(Chart);
-require(57)(Chart);
-require(58)(Chart);
-require(59)(Chart);
-
-// Controllers must be loaded after elements
-// See Chart.core.datasetController.dataElementType
-require(15)(Chart);
-require(16)(Chart);
-require(17)(Chart);
-require(18)(Chart);
-require(19)(Chart);
-require(20)(Chart);
-require(21)(Chart);
-
-require(8)(Chart);
-require(9)(Chart);
-require(10)(Chart);
-require(11)(Chart);
-require(12)(Chart);
-require(13)(Chart);
-require(14)(Chart);
+var colorString = {
+   getRgba: getRgba,
+   getHsla: getHsla,
+   getRgb: getRgb,
+   getHsl: getHsl,
+   getHwb: getHwb,
+   getAlpha: getAlpha,
 
-// Loading built-in plugins
-var plugins = require(50);
-for (var k in plugins) {
-	if (plugins.hasOwnProperty(k)) {
-		Chart.plugins.register(plugins[k]);
-	}
-}
+   hexString: hexString,
+   rgbString: rgbString,
+   rgbaString: rgbaString,
+   percentString: percentString,
+   percentaString: percentaString,
+   hslString: hslString,
+   hslaString: hslaString,
+   hwbString: hwbString,
+   keyword: keyword
+};
 
-Chart.platform.initialize();
+function getRgba(string) {
+   if (!string) {
+      return;
+   }
+   var abbr =  /^#([a-fA-F0-9]{3,4})$/i,
+       hex =  /^#([a-fA-F0-9]{6}([a-fA-F0-9]{2})?)$/i,
+       rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
+       per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
+       keyword = /(\w+)/;
 
-module.exports = Chart;
-if (typeof window !== 'undefined') {
-	window.Chart = Chart;
-}
+   var rgb = [0, 0, 0],
+       a = 1,
+       match = string.match(abbr),
+       hexAlpha = "";
+   if (match) {
+      match = match[1];
+      hexAlpha = match[3];
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match[i] + match[i], 16);
+      }
+      if (hexAlpha) {
+         a = Math.round((parseInt(hexAlpha + hexAlpha, 16) / 255) * 100) / 100;
+      }
+   }
+   else if (match = string.match(hex)) {
+      hexAlpha = match[2];
+      match = match[1];
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
+      }
+      if (hexAlpha) {
+         a = Math.round((parseInt(hexAlpha, 16) / 255) * 100) / 100;
+      }
+   }
+   else if (match = string.match(rgba)) {
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = parseInt(match[i + 1]);
+      }
+      a = parseFloat(match[4]);
+   }
+   else if (match = string.match(per)) {
+      for (var i = 0; i < rgb.length; i++) {
+         rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
+      }
+      a = parseFloat(match[4]);
+   }
+   else if (match = string.match(keyword)) {
+      if (match[1] == "transparent") {
+         return [0, 0, 0, 0];
+      }
+      rgb = colorName[match[1]];
+      if (!rgb) {
+         return;
+      }
+   }
 
-// DEPRECATIONS
+   for (var i = 0; i < rgb.length; i++) {
+      rgb[i] = scale(rgb[i], 0, 255);
+   }
+   if (!a && a != 0) {
+      a = 1;
+   }
+   else {
+      a = scale(a, 0, 1);
+   }
+   rgb[3] = a;
+   return rgb;
+}
 
-/**
- * Provided for backward compatibility, not available anymore
- * @namespace Chart.Legend
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-Chart.Legend = plugins.legend._element;
+function getHsla(string) {
+   if (!string) {
+      return;
+   }
+   var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
+   var match = string.match(hsl);
+   if (match) {
+      var alpha = parseFloat(match[4]);
+      var h = scale(parseInt(match[1]), 0, 360),
+          s = scale(parseFloat(match[2]), 0, 100),
+          l = scale(parseFloat(match[3]), 0, 100),
+          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
+      return [h, s, l, a];
+   }
+}
 
-/**
- * Provided for backward compatibility, not available anymore
- * @namespace Chart.Title
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-Chart.Title = plugins.title._element;
+function getHwb(string) {
+   if (!string) {
+      return;
+   }
+   var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
+   var match = string.match(hwb);
+   if (match) {
+    var alpha = parseFloat(match[4]);
+      var h = scale(parseInt(match[1]), 0, 360),
+          w = scale(parseFloat(match[2]), 0, 100),
+          b = scale(parseFloat(match[3]), 0, 100),
+          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
+      return [h, w, b, a];
+   }
+}
 
-/**
- * Provided for backward compatibility, use Chart.plugins instead
- * @namespace Chart.pluginService
- * @deprecated since version 2.1.5
- * @todo remove at version 3
- * @private
- */
-Chart.pluginService = Chart.plugins;
+function getRgb(string) {
+   var rgba = getRgba(string);
+   return rgba && rgba.slice(0, 3);
+}
 
-/**
- * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
- * effect, instead simply create/register plugins via plain JavaScript objects.
- * @interface Chart.PluginBase
- * @deprecated since version 2.5.0
- * @todo remove at version 3
- * @private
- */
-Chart.PluginBase = Chart.Element.extend({});
+function getHsl(string) {
+  var hsla = getHsla(string);
+  return hsla && hsla.slice(0, 3);
+}
 
-/**
- * Provided for backward compatibility, use Chart.helpers.canvas instead.
- * @namespace Chart.canvasHelpers
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- * @private
- */
-Chart.canvasHelpers = Chart.helpers.canvas;
+function getAlpha(string) {
+   var vals = getRgba(string);
+   if (vals) {
+      return vals[3];
+   }
+   else if (vals = getHsla(string)) {
+      return vals[3];
+   }
+   else if (vals = getHwb(string)) {
+      return vals[3];
+   }
+}
 
-/**
- * Provided for backward compatibility, use Chart.layouts instead.
- * @namespace Chart.layoutService
- * @deprecated since version 2.8.0
- * @todo remove at version 3
- * @private
- */
-Chart.layoutService = Chart.layouts;
+// generators
+function hexString(rgba, a) {
+   var a = (a !== undefined && rgba.length === 3) ? a : rgba[3];
+   return "#" + hexDouble(rgba[0]) 
+              + hexDouble(rgba[1])
+              + hexDouble(rgba[2])
+              + (
+                 (a >= 0 && a < 1)
+                 ? hexDouble(Math.round(a * 255))
+                 : ""
+              );
+}
 
-},{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"34":34,"35":35,"36":36,"41":41,"46":46,"49":49,"50":50,"54":54,"55":55,"56":56,"57":57,"58":58,"59":59,"8":8,"9":9}],8:[function(require,module,exports){
-'use strict';
+function rgbString(rgba, alpha) {
+   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
+      return rgbaString(rgba, alpha);
+   }
+   return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
+}
 
-module.exports = function(Chart) {
+function rgbaString(rgba, alpha) {
+   if (alpha === undefined) {
+      alpha = (rgba[3] !== undefined ? rgba[3] : 1);
+   }
+   return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
+           + ", " + alpha + ")";
+}
 
-	Chart.Bar = function(context, config) {
-		config.type = 'bar';
+function percentString(rgba, alpha) {
+   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
+      return percentaString(rgba, alpha);
+   }
+   var r = Math.round(rgba[0]/255 * 100),
+       g = Math.round(rgba[1]/255 * 100),
+       b = Math.round(rgba[2]/255 * 100);
 
-		return new Chart(context, config);
-	};
+   return "rgb(" + r + "%, " + g + "%, " + b + "%)";
+}
 
-};
+function percentaString(rgba, alpha) {
+   var r = Math.round(rgba[0]/255 * 100),
+       g = Math.round(rgba[1]/255 * 100),
+       b = Math.round(rgba[2]/255 * 100);
+   return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
+}
 
-},{}],9:[function(require,module,exports){
-'use strict';
+function hslString(hsla, alpha) {
+   if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
+      return hslaString(hsla, alpha);
+   }
+   return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
+}
 
-module.exports = function(Chart) {
+function hslaString(hsla, alpha) {
+   if (alpha === undefined) {
+      alpha = (hsla[3] !== undefined ? hsla[3] : 1);
+   }
+   return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
+           + alpha + ")";
+}
 
-	Chart.Bubble = function(context, config) {
-		config.type = 'bubble';
-		return new Chart(context, config);
-	};
+// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
+// (hwb have alpha optional & 1 is default value)
+function hwbString(hwb, alpha) {
+   if (alpha === undefined) {
+      alpha = (hwb[3] !== undefined ? hwb[3] : 1);
+   }
+   return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
+           + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
+}
 
-};
+function keyword(rgb) {
+  return reverseNames[rgb.slice(0, 3)];
+}
 
-},{}],10:[function(require,module,exports){
-'use strict';
+// helpers
+function scale(num, min, max) {
+   return Math.min(Math.max(min, num), max);
+}
 
-module.exports = function(Chart) {
+function hexDouble(num) {
+  var str = num.toString(16).toUpperCase();
+  return (str.length < 2) ? "0" + str : str;
+}
 
-	Chart.Doughnut = function(context, config) {
-		config.type = 'doughnut';
 
-		return new Chart(context, config);
-	};
+//create a list of reverse color names
+var reverseNames = {};
+for (var name in colorName) {
+   reverseNames[colorName[name]] = name;
+}
 
-};
+/* MIT license */
 
-},{}],11:[function(require,module,exports){
-'use strict';
 
-module.exports = function(Chart) {
 
-	Chart.Line = function(context, config) {
-		config.type = 'line';
+var Color = function (obj) {
+	if (obj instanceof Color) {
+		return obj;
+	}
+	if (!(this instanceof Color)) {
+		return new Color(obj);
+	}
 
-		return new Chart(context, config);
+	this.valid = false;
+	this.values = {
+		rgb: [0, 0, 0],
+		hsl: [0, 0, 0],
+		hsv: [0, 0, 0],
+		hwb: [0, 0, 0],
+		cmyk: [0, 0, 0, 0],
+		alpha: 1
 	};
 
+	// parse Color() argument
+	var vals;
+	if (typeof obj === 'string') {
+		vals = colorString.getRgba(obj);
+		if (vals) {
+			this.setValues('rgb', vals);
+		} else if (vals = colorString.getHsla(obj)) {
+			this.setValues('hsl', vals);
+		} else if (vals = colorString.getHwb(obj)) {
+			this.setValues('hwb', vals);
+		}
+	} else if (typeof obj === 'object') {
+		vals = obj;
+		if (vals.r !== undefined || vals.red !== undefined) {
+			this.setValues('rgb', vals);
+		} else if (vals.l !== undefined || vals.lightness !== undefined) {
+			this.setValues('hsl', vals);
+		} else if (vals.v !== undefined || vals.value !== undefined) {
+			this.setValues('hsv', vals);
+		} else if (vals.w !== undefined || vals.whiteness !== undefined) {
+			this.setValues('hwb', vals);
+		} else if (vals.c !== undefined || vals.cyan !== undefined) {
+			this.setValues('cmyk', vals);
+		}
+	}
 };
 
-},{}],12:[function(require,module,exports){
-'use strict';
+Color.prototype = {
+	isValid: function () {
+		return this.valid;
+	},
+	rgb: function () {
+		return this.setSpace('rgb', arguments);
+	},
+	hsl: function () {
+		return this.setSpace('hsl', arguments);
+	},
+	hsv: function () {
+		return this.setSpace('hsv', arguments);
+	},
+	hwb: function () {
+		return this.setSpace('hwb', arguments);
+	},
+	cmyk: function () {
+		return this.setSpace('cmyk', arguments);
+	},
 
-module.exports = function(Chart) {
+	rgbArray: function () {
+		return this.values.rgb;
+	},
+	hslArray: function () {
+		return this.values.hsl;
+	},
+	hsvArray: function () {
+		return this.values.hsv;
+	},
+	hwbArray: function () {
+		var values = this.values;
+		if (values.alpha !== 1) {
+			return values.hwb.concat([values.alpha]);
+		}
+		return values.hwb;
+	},
+	cmykArray: function () {
+		return this.values.cmyk;
+	},
+	rgbaArray: function () {
+		var values = this.values;
+		return values.rgb.concat([values.alpha]);
+	},
+	hslaArray: function () {
+		var values = this.values;
+		return values.hsl.concat([values.alpha]);
+	},
+	alpha: function (val) {
+		if (val === undefined) {
+			return this.values.alpha;
+		}
+		this.setValues('alpha', val);
+		return this;
+	},
 
-	Chart.PolarArea = function(context, config) {
-		config.type = 'polarArea';
+	red: function (val) {
+		return this.setChannel('rgb', 0, val);
+	},
+	green: function (val) {
+		return this.setChannel('rgb', 1, val);
+	},
+	blue: function (val) {
+		return this.setChannel('rgb', 2, val);
+	},
+	hue: function (val) {
+		if (val) {
+			val %= 360;
+			val = val < 0 ? 360 + val : val;
+		}
+		return this.setChannel('hsl', 0, val);
+	},
+	saturation: function (val) {
+		return this.setChannel('hsl', 1, val);
+	},
+	lightness: function (val) {
+		return this.setChannel('hsl', 2, val);
+	},
+	saturationv: function (val) {
+		return this.setChannel('hsv', 1, val);
+	},
+	whiteness: function (val) {
+		return this.setChannel('hwb', 1, val);
+	},
+	blackness: function (val) {
+		return this.setChannel('hwb', 2, val);
+	},
+	value: function (val) {
+		return this.setChannel('hsv', 2, val);
+	},
+	cyan: function (val) {
+		return this.setChannel('cmyk', 0, val);
+	},
+	magenta: function (val) {
+		return this.setChannel('cmyk', 1, val);
+	},
+	yellow: function (val) {
+		return this.setChannel('cmyk', 2, val);
+	},
+	black: function (val) {
+		return this.setChannel('cmyk', 3, val);
+	},
 
-		return new Chart(context, config);
-	};
+	hexString: function () {
+		return colorString.hexString(this.values.rgb);
+	},
+	rgbString: function () {
+		return colorString.rgbString(this.values.rgb, this.values.alpha);
+	},
+	rgbaString: function () {
+		return colorString.rgbaString(this.values.rgb, this.values.alpha);
+	},
+	percentString: function () {
+		return colorString.percentString(this.values.rgb, this.values.alpha);
+	},
+	hslString: function () {
+		return colorString.hslString(this.values.hsl, this.values.alpha);
+	},
+	hslaString: function () {
+		return colorString.hslaString(this.values.hsl, this.values.alpha);
+	},
+	hwbString: function () {
+		return colorString.hwbString(this.values.hwb, this.values.alpha);
+	},
+	keyword: function () {
+		return colorString.keyword(this.values.rgb, this.values.alpha);
+	},
 
-};
+	rgbNumber: function () {
+		var rgb = this.values.rgb;
+		return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
+	},
 
-},{}],13:[function(require,module,exports){
-'use strict';
+	luminosity: function () {
+		// http://www.w3.org/TR/WCAG20/#relativeluminancedef
+		var rgb = this.values.rgb;
+		var lum = [];
+		for (var i = 0; i < rgb.length; i++) {
+			var chan = rgb[i] / 255;
+			lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
+		}
+		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
+	},
 
-module.exports = function(Chart) {
+	contrast: function (color2) {
+		// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
+		var lum1 = this.luminosity();
+		var lum2 = color2.luminosity();
+		if (lum1 > lum2) {
+			return (lum1 + 0.05) / (lum2 + 0.05);
+		}
+		return (lum2 + 0.05) / (lum1 + 0.05);
+	},
 
-	Chart.Radar = function(context, config) {
-		config.type = 'radar';
+	level: function (color2) {
+		var contrastRatio = this.contrast(color2);
+		if (contrastRatio >= 7.1) {
+			return 'AAA';
+		}
 
-		return new Chart(context, config);
-	};
+		return (contrastRatio >= 4.5) ? 'AA' : '';
+	},
 
-};
+	dark: function () {
+		// YIQ equation from http://24ways.org/2010/calculating-color-contrast
+		var rgb = this.values.rgb;
+		var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
+		return yiq < 128;
+	},
 
-},{}],14:[function(require,module,exports){
-'use strict';
+	light: function () {
+		return !this.dark();
+	},
 
-module.exports = function(Chart) {
-	Chart.Scatter = function(context, config) {
-		config.type = 'scatter';
-		return new Chart(context, config);
-	};
-};
+	negate: function () {
+		var rgb = [];
+		for (var i = 0; i < 3; i++) {
+			rgb[i] = 255 - this.values.rgb[i];
+		}
+		this.setValues('rgb', rgb);
+		return this;
+	},
 
-},{}],15:[function(require,module,exports){
-'use strict';
+	lighten: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[2] += hsl[2] * ratio;
+		this.setValues('hsl', hsl);
+		return this;
+	},
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+	darken: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[2] -= hsl[2] * ratio;
+		this.setValues('hsl', hsl);
+		return this;
+	},
 
-defaults._set('bar', {
-	hover: {
-		mode: 'label'
+	saturate: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[1] += hsl[1] * ratio;
+		this.setValues('hsl', hsl);
+		return this;
 	},
 
-	scales: {
-		xAxes: [{
-			type: 'category',
+	desaturate: function (ratio) {
+		var hsl = this.values.hsl;
+		hsl[1] -= hsl[1] * ratio;
+		this.setValues('hsl', hsl);
+		return this;
+	},
 
-			// Specific to Bar Controller
-			categoryPercentage: 0.8,
-			barPercentage: 0.9,
+	whiten: function (ratio) {
+		var hwb = this.values.hwb;
+		hwb[1] += hwb[1] * ratio;
+		this.setValues('hwb', hwb);
+		return this;
+	},
 
-			// offset settings
-			offset: true,
+	blacken: function (ratio) {
+		var hwb = this.values.hwb;
+		hwb[2] += hwb[2] * ratio;
+		this.setValues('hwb', hwb);
+		return this;
+	},
 
-			// grid line settings
-			gridLines: {
-				offsetGridLines: true
-			}
-		}],
+	greyscale: function () {
+		var rgb = this.values.rgb;
+		// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
+		var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
+		this.setValues('rgb', [val, val, val]);
+		return this;
+	},
 
-		yAxes: [{
-			type: 'linear'
-		}]
-	}
-});
+	clearer: function (ratio) {
+		var alpha = this.values.alpha;
+		this.setValues('alpha', alpha - (alpha * ratio));
+		return this;
+	},
 
-defaults._set('horizontalBar', {
-	hover: {
-		mode: 'index',
-		axis: 'y'
+	opaquer: function (ratio) {
+		var alpha = this.values.alpha;
+		this.setValues('alpha', alpha + (alpha * ratio));
+		return this;
 	},
 
-	scales: {
-		xAxes: [{
-			type: 'linear',
-			position: 'bottom'
-		}],
+	rotate: function (degrees) {
+		var hsl = this.values.hsl;
+		var hue = (hsl[0] + degrees) % 360;
+		hsl[0] = hue < 0 ? 360 + hue : hue;
+		this.setValues('hsl', hsl);
+		return this;
+	},
 
-		yAxes: [{
-			position: 'left',
-			type: 'category',
+	/**
+	 * Ported from sass implementation in C
+	 * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
+	 */
+	mix: function (mixinColor, weight) {
+		var color1 = this;
+		var color2 = mixinColor;
+		var p = weight === undefined ? 0.5 : weight;
 
-			// Specific to Horizontal Bar Controller
-			categoryPercentage: 0.8,
-			barPercentage: 0.9,
+		var w = 2 * p - 1;
+		var a = color1.alpha() - color2.alpha();
 
-			// offset settings
-			offset: true,
+		var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
+		var w2 = 1 - w1;
 
-			// grid line settings
-			gridLines: {
-				offsetGridLines: true
-			}
-		}]
+		return this
+			.rgb(
+				w1 * color1.red() + w2 * color2.red(),
+				w1 * color1.green() + w2 * color2.green(),
+				w1 * color1.blue() + w2 * color2.blue()
+			)
+			.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
 	},
 
-	elements: {
-		rectangle: {
-			borderSkipped: 'left'
-		}
+	toJSON: function () {
+		return this.rgb();
 	},
 
-	tooltips: {
-		callbacks: {
-			title: function(item, data) {
-				// Pick first xLabel for now
-				var title = '';
+	clone: function () {
+		// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
+		// making the final build way to big to embed in Chart.js. So let's do it manually,
+		// assuming that values to clone are 1 dimension arrays containing only numbers,
+		// except 'alpha' which is a number.
+		var result = new Color();
+		var source = this.values;
+		var target = result.values;
+		var value, type;
 
-				if (item.length > 0) {
-					if (item[0].yLabel) {
-						title = item[0].yLabel;
-					} else if (data.labels.length > 0 && item[0].index < data.labels.length) {
-						title = data.labels[item[0].index];
-					}
+		for (var prop in source) {
+			if (source.hasOwnProperty(prop)) {
+				value = source[prop];
+				type = ({}).toString.call(value);
+				if (type === '[object Array]') {
+					target[prop] = value.slice(0);
+				} else if (type === '[object Number]') {
+					target[prop] = value;
+				} else {
+					console.error('unexpected color value:', value);
 				}
-
-				return title;
-			},
-
-			label: function(item, data) {
-				var datasetLabel = data.datasets[item.datasetIndex].label || '';
-				return datasetLabel + ': ' + item.xLabel;
 			}
-		},
-		mode: 'index',
-		axis: 'y'
-	}
-});
-
-/**
- * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
- * @private
- */
-function computeMinSampleSize(scale, pixels) {
-	var min = scale.isHorizontal() ? scale.width : scale.height;
-	var ticks = scale.getTicks();
-	var prev, curr, i, ilen;
-
-	for (i = 1, ilen = pixels.length; i < ilen; ++i) {
-		min = Math.min(min, pixels[i] - pixels[i - 1]);
-	}
+		}
 
-	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
-		curr = scale.getPixelForTick(i);
-		min = i > 0 ? Math.min(min, curr - prev) : min;
-		prev = curr;
+		return result;
 	}
+};
 
-	return min;
-}
-
-/**
- * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
- * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
- * mode currently always generates bars equally sized (until we introduce scriptable options?).
- * @private
- */
-function computeFitCategoryTraits(index, ruler, options) {
-	var thickness = options.barThickness;
-	var count = ruler.stackCount;
-	var curr = ruler.pixels[index];
-	var size, ratio;
-
-	if (helpers.isNullOrUndef(thickness)) {
-		size = ruler.min * options.categoryPercentage;
-		ratio = options.barPercentage;
-	} else {
-		// When bar thickness is enforced, category and bar percentages are ignored.
-		// Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
-		// and deprecate barPercentage since this value is ignored when thickness is absolute.
-		size = thickness * count;
-		ratio = 1;
-	}
+Color.prototype.spaces = {
+	rgb: ['red', 'green', 'blue'],
+	hsl: ['hue', 'saturation', 'lightness'],
+	hsv: ['hue', 'saturation', 'value'],
+	hwb: ['hue', 'whiteness', 'blackness'],
+	cmyk: ['cyan', 'magenta', 'yellow', 'black']
+};
 
-	return {
-		chunk: size / count,
-		ratio: ratio,
-		start: curr - (size / 2)
-	};
-}
+Color.prototype.maxes = {
+	rgb: [255, 255, 255],
+	hsl: [360, 100, 100],
+	hsv: [360, 100, 100],
+	hwb: [360, 100, 100],
+	cmyk: [100, 100, 100, 100]
+};
 
-/**
- * Computes an "optimal" category that globally arranges bars side by side (no gap when
- * percentage options are 1), based on the previous and following categories. This mode
- * generates bars with different widths when data are not evenly spaced.
- * @private
- */
-function computeFlexCategoryTraits(index, ruler, options) {
-	var pixels = ruler.pixels;
-	var curr = pixels[index];
-	var prev = index > 0 ? pixels[index - 1] : null;
-	var next = index < pixels.length - 1 ? pixels[index + 1] : null;
-	var percent = options.categoryPercentage;
-	var start, size;
+Color.prototype.getValues = function (space) {
+	var values = this.values;
+	var vals = {};
 
-	if (prev === null) {
-		// first data: its size is double based on the next point or,
-		// if it's also the last data, we use the scale end extremity.
-		prev = curr - (next === null ? ruler.end - curr : next - curr);
+	for (var i = 0; i < space.length; i++) {
+		vals[space.charAt(i)] = values[space][i];
 	}
 
-	if (next === null) {
-		// last data: its size is also double based on the previous point.
-		next = curr + curr - prev;
+	if (values.alpha !== 1) {
+		vals.a = values.alpha;
 	}
 
-	start = curr - ((curr - prev) / 2) * percent;
-	size = ((next - prev) / 2) * percent;
-
-	return {
-		chunk: size / ruler.stackCount,
-		ratio: options.barPercentage,
-		start: start
-	};
-}
-
-module.exports = function(Chart) {
-
-	Chart.controllers.bar = Chart.DatasetController.extend({
+	// {r: 255, g: 255, b: 255, a: 0.4}
+	return vals;
+};
 
-		dataElementType: elements.Rectangle,
+Color.prototype.setValues = function (space, vals) {
+	var values = this.values;
+	var spaces = this.spaces;
+	var maxes = this.maxes;
+	var alpha = 1;
+	var i;
 
-		initialize: function() {
-			var me = this;
-			var meta;
+	this.valid = true;
 
-			Chart.DatasetController.prototype.initialize.apply(me, arguments);
+	if (space === 'alpha') {
+		alpha = vals;
+	} else if (vals.length) {
+		// [10, 10, 10]
+		values[space] = vals.slice(0, space.length);
+		alpha = vals[space.length];
+	} else if (vals[space.charAt(0)] !== undefined) {
+		// {r: 10, g: 10, b: 10}
+		for (i = 0; i < space.length; i++) {
+			values[space][i] = vals[space.charAt(i)];
+		}
 
-			meta = me.getMeta();
-			meta.stack = me.getDataset().stack;
-			meta.bar = true;
-		},
+		alpha = vals.a;
+	} else if (vals[spaces[space][0]] !== undefined) {
+		// {red: 10, green: 10, blue: 10}
+		var chans = spaces[space];
 
-		update: function(reset) {
-			var me = this;
-			var rects = me.getMeta().data;
-			var i, ilen;
+		for (i = 0; i < space.length; i++) {
+			values[space][i] = vals[chans[i]];
+		}
 
-			me._ruler = me.getRuler();
+		alpha = vals.alpha;
+	}
 
-			for (i = 0, ilen = rects.length; i < ilen; ++i) {
-				me.updateElement(rects[i], i, reset);
-			}
-		},
+	values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));
 
-		updateElement: function(rectangle, index, reset) {
-			var me = this;
-			var chart = me.chart;
-			var meta = me.getMeta();
-			var dataset = me.getDataset();
-			var custom = rectangle.custom || {};
-			var rectangleOptions = chart.options.elements.rectangle;
-
-			rectangle._xScale = me.getScaleForId(meta.xAxisID);
-			rectangle._yScale = me.getScaleForId(meta.yAxisID);
-			rectangle._datasetIndex = me.index;
-			rectangle._index = index;
-
-			rectangle._model = {
-				datasetLabel: dataset.label,
-				label: chart.data.labels[index],
-				borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped,
-				backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor),
-				borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor),
-				borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth)
-			};
+	if (space === 'alpha') {
+		return false;
+	}
 
-			me.updateElementGeometry(rectangle, index, reset);
+	var capped;
 
-			rectangle.pivot();
-		},
+	// cap values of the space prior converting all values
+	for (i = 0; i < space.length; i++) {
+		capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
+		values[space][i] = Math.round(capped);
+	}
 
-		/**
-		 * @private
-		 */
-		updateElementGeometry: function(rectangle, index, reset) {
-			var me = this;
-			var model = rectangle._model;
-			var vscale = me.getValueScale();
-			var base = vscale.getBasePixel();
-			var horizontal = vscale.isHorizontal();
-			var ruler = me._ruler || me.getRuler();
-			var vpixels = me.calculateBarValuePixels(me.index, index);
-			var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);
-
-			model.horizontal = horizontal;
-			model.base = reset ? base : vpixels.base;
-			model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
-			model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
-			model.height = horizontal ? ipixels.size : undefined;
-			model.width = horizontal ? undefined : ipixels.size;
-		},
+	// convert to all the other color spaces
+	for (var sname in spaces) {
+		if (sname !== space) {
+			values[sname] = colorConvert[space][sname](values[space]);
+		}
+	}
 
-		/**
-		 * @private
-		 */
-		getValueScaleId: function() {
-			return this.getMeta().yAxisID;
-		},
+	return true;
+};
 
-		/**
-		 * @private
-		 */
-		getIndexScaleId: function() {
-			return this.getMeta().xAxisID;
-		},
+Color.prototype.setSpace = function (space, args) {
+	var vals = args[0];
 
-		/**
-		 * @private
-		 */
-		getValueScale: function() {
-			return this.getScaleForId(this.getValueScaleId());
-		},
+	if (vals === undefined) {
+		// color.rgb()
+		return this.getValues(space);
+	}
 
-		/**
-		 * @private
-		 */
-		getIndexScale: function() {
-			return this.getScaleForId(this.getIndexScaleId());
-		},
+	// color.rgb(10, 10, 10)
+	if (typeof vals === 'number') {
+		vals = Array.prototype.slice.call(args);
+	}
 
-		/**
-		 * Returns the stacks based on groups and bar visibility.
-		 * @param {Number} [last] - The dataset index
-		 * @returns {Array} The stack list
-		 * @private
-		 */
-		_getStacks: function(last) {
-			var me = this;
-			var chart = me.chart;
-			var scale = me.getIndexScale();
-			var stacked = scale.options.stacked;
-			var ilen = last === undefined ? chart.data.datasets.length : last + 1;
-			var stacks = [];
-			var i, meta;
-
-			for (i = 0; i < ilen; ++i) {
-				meta = chart.getDatasetMeta(i);
-				if (meta.bar && chart.isDatasetVisible(i) &&
-					(stacked === false ||
-					(stacked === true && stacks.indexOf(meta.stack) === -1) ||
-					(stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
-					stacks.push(meta.stack);
-				}
-			}
+	this.setValues(space, vals);
+	return this;
+};
 
-			return stacks;
-		},
+Color.prototype.setChannel = function (space, index, val) {
+	var svalues = this.values[space];
+	if (val === undefined) {
+		// color.red()
+		return svalues[index];
+	} else if (val === svalues[index]) {
+		// color.red(color.red())
+		return this;
+	}
 
-		/**
-		 * Returns the effective number of stacks based on groups and bar visibility.
-		 * @private
-		 */
-		getStackCount: function() {
-			return this._getStacks().length;
-		},
+	// color.red(100)
+	svalues[index] = val;
+	this.setValues(space, svalues);
 
-		/**
-		 * Returns the stack index for the given dataset based on groups and bar visibility.
-		 * @param {Number} [datasetIndex] - The dataset index
-		 * @param {String} [name] - The stack name to find
-		 * @returns {Number} The stack index
-		 * @private
-		 */
-		getStackIndex: function(datasetIndex, name) {
-			var stacks = this._getStacks(datasetIndex);
-			var index = (name !== undefined)
-				? stacks.indexOf(name)
-				: -1; // indexOf returns -1 if element is not present
-
-			return (index === -1)
-				? stacks.length - 1
-				: index;
-		},
+	return this;
+};
 
-		/**
-		 * @private
-		 */
-		getRuler: function() {
-			var me = this;
-			var scale = me.getIndexScale();
-			var stackCount = me.getStackCount();
-			var datasetIndex = me.index;
-			var isHorizontal = scale.isHorizontal();
-			var start = isHorizontal ? scale.left : scale.top;
-			var end = start + (isHorizontal ? scale.width : scale.height);
-			var pixels = [];
-			var i, ilen, min;
+if (typeof window !== 'undefined') {
+	window.Color = Color;
+}
 
-			for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
-				pixels.push(scale.getPixelForValue(null, i, datasetIndex));
-			}
+var chartjsColor = Color;
 
-			min = helpers.isNullOrUndef(scale.options.barThickness)
-				? computeMinSampleSize(scale, pixels)
-				: -1;
+/**
+ * @namespace Chart.helpers
+ */
+var helpers = {
+	/**
+	 * An empty function that can be used, for example, for optional callback.
+	 */
+	noop: function() {},
 
-			return {
-				min: min,
-				pixels: pixels,
-				start: start,
-				end: end,
-				stackCount: stackCount,
-				scale: scale
-			};
-		},
+	/**
+	 * Returns a unique id, sequentially generated from a global variable.
+	 * @returns {number}
+	 * @function
+	 */
+	uid: (function() {
+		var id = 0;
+		return function() {
+			return id++;
+		};
+	}()),
 
-		/**
-		 * Note: pixel values are not clamped to the scale area.
-		 * @private
-		 */
-		calculateBarValuePixels: function(datasetIndex, index) {
-			var me = this;
-			var chart = me.chart;
-			var meta = me.getMeta();
-			var scale = me.getValueScale();
-			var datasets = chart.data.datasets;
-			var value = scale.getRightValue(datasets[datasetIndex].data[index]);
-			var stacked = scale.options.stacked;
-			var stack = meta.stack;
-			var start = 0;
-			var i, imeta, ivalue, base, head, size;
-
-			if (stacked || (stacked === undefined && stack !== undefined)) {
-				for (i = 0; i < datasetIndex; ++i) {
-					imeta = chart.getDatasetMeta(i);
-
-					if (imeta.bar &&
-						imeta.stack === stack &&
-						imeta.controller.getValueScaleId() === scale.id &&
-						chart.isDatasetVisible(i)) {
-
-						ivalue = scale.getRightValue(datasets[i].data[index]);
-						if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
-							start += ivalue;
-						}
-					}
-				}
-			}
+	/**
+	 * Returns true if `value` is neither null nor undefined, else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @since 2.7.0
+	 */
+	isNullOrUndef: function(value) {
+		return value === null || typeof value === 'undefined';
+	},
 
-			base = scale.getPixelForValue(start);
-			head = scale.getPixelForValue(start + value);
-			size = (head - base) / 2;
+	/**
+	 * Returns true if `value` is an array (including typed arrays), else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @function
+	 */
+	isArray: function(value) {
+		if (Array.isArray && Array.isArray(value)) {
+			return true;
+		}
+		var type = Object.prototype.toString.call(value);
+		if (type.substr(0, 7) === '[object' && type.substr(-6) === 'Array]') {
+			return true;
+		}
+		return false;
+	},
 
-			return {
-				size: size,
-				base: base,
-				head: head,
-				center: head + size / 2
-			};
-		},
+	/**
+	 * Returns true if `value` is an object (excluding null), else returns false.
+	 * @param {*} value - The value to test.
+	 * @returns {boolean}
+	 * @since 2.7.0
+	 */
+	isObject: function(value) {
+		return value !== null && Object.prototype.toString.call(value) === '[object Object]';
+	},
 
-		/**
-		 * @private
-		 */
-		calculateBarIndexPixels: function(datasetIndex, index, ruler) {
-			var me = this;
-			var options = ruler.scale.options;
-			var range = options.barThickness === 'flex'
-				? computeFlexCategoryTraits(index, ruler, options)
-				: computeFitCategoryTraits(index, ruler, options);
-
-			var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
-			var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
-			var size = Math.min(
-				helpers.valueOrDefault(options.maxBarThickness, Infinity),
-				range.chunk * range.ratio);
+	/**
+	 * Returns true if `value` is a finite number, else returns false
+	 * @param {*} value  - The value to test.
+	 * @returns {boolean}
+	 */
+	isFinite: function(value) {
+		return (typeof value === 'number' || value instanceof Number) && isFinite(value);
+	},
 
-			return {
-				base: center - size / 2,
-				head: center + size / 2,
-				center: center,
-				size: size
-			};
-		},
+	/**
+	 * Returns `value` if defined, else returns `defaultValue`.
+	 * @param {*} value - The value to return if defined.
+	 * @param {*} defaultValue - The value to return if `value` is undefined.
+	 * @returns {*}
+	 */
+	valueOrDefault: function(value, defaultValue) {
+		return typeof value === 'undefined' ? defaultValue : value;
+	},
 
-		draw: function() {
-			var me = this;
-			var chart = me.chart;
-			var scale = me.getValueScale();
-			var rects = me.getMeta().data;
-			var dataset = me.getDataset();
-			var ilen = rects.length;
-			var i = 0;
+	/**
+	 * Returns value at the given `index` in array if defined, else returns `defaultValue`.
+	 * @param {Array} value - The array to lookup for value at `index`.
+	 * @param {number} index - The index in `value` to lookup for value.
+	 * @param {*} defaultValue - The value to return if `value[index]` is undefined.
+	 * @returns {*}
+	 */
+	valueAtIndexOrDefault: function(value, index, defaultValue) {
+		return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
+	},
 
-			helpers.canvas.clipArea(chart.ctx, chart.chartArea);
+	/**
+	 * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
+	 * value returned by `fn`. If `fn` is not a function, this method returns undefined.
+	 * @param {function} fn - The function to call.
+	 * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
+	 * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
+	 * @returns {*}
+	 */
+	callback: function(fn, args, thisArg) {
+		if (fn && typeof fn.call === 'function') {
+			return fn.apply(thisArg, args);
+		}
+	},
 
-			for (; i < ilen; ++i) {
-				if (!isNaN(scale.getRightValue(dataset.data[i]))) {
-					rects[i].draw();
+	/**
+	 * Note(SB) for performance sake, this method should only be used when loopable type
+	 * is unknown or in none intensive code (not called often and small loopable). Else
+	 * it's preferable to use a regular for() loop and save extra function calls.
+	 * @param {object|Array} loopable - The object or array to be iterated.
+	 * @param {function} fn - The function to call for each item.
+	 * @param {object} [thisArg] - The value of `this` provided for the call to `fn`.
+	 * @param {boolean} [reverse] - If true, iterates backward on the loopable.
+	 */
+	each: function(loopable, fn, thisArg, reverse) {
+		var i, len, keys;
+		if (helpers.isArray(loopable)) {
+			len = loopable.length;
+			if (reverse) {
+				for (i = len - 1; i >= 0; i--) {
+					fn.call(thisArg, loopable[i], i);
+				}
+			} else {
+				for (i = 0; i < len; i++) {
+					fn.call(thisArg, loopable[i], i);
 				}
 			}
-
-			helpers.canvas.unclipArea(chart.ctx);
-		},
-	});
-
-	Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
-		/**
-		 * @private
-		 */
-		getValueScaleId: function() {
-			return this.getMeta().xAxisID;
-		},
-
-		/**
-		 * @private
-		 */
-		getIndexScaleId: function() {
-			return this.getMeta().yAxisID;
+		} else if (helpers.isObject(loopable)) {
+			keys = Object.keys(loopable);
+			len = keys.length;
+			for (i = 0; i < len; i++) {
+				fn.call(thisArg, loopable[keys[i]], keys[i]);
+			}
 		}
-	});
-};
-
-},{"26":26,"41":41,"46":46}],16:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
-
-defaults._set('bubble', {
-	hover: {
-		mode: 'single'
 	},
 
-	scales: {
-		xAxes: [{
-			type: 'linear', // bubble should probably use a linear scale by default
-			position: 'bottom',
-			id: 'x-axis-0' // need an ID so datasets can reference the scale
-		}],
-		yAxes: [{
-			type: 'linear',
-			position: 'left',
-			id: 'y-axis-0'
-		}]
-	},
+	/**
+	 * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
+	 * @see https://stackoverflow.com/a/14853974
+	 * @param {Array} a0 - The array to compare
+	 * @param {Array} a1 - The array to compare
+	 * @returns {boolean}
+	 */
+	arrayEquals: function(a0, a1) {
+		var i, ilen, v0, v1;
 
-	tooltips: {
-		callbacks: {
-			title: function() {
-				// Title doesn't make sense for scatter since we format the data as a point
-				return '';
-			},
-			label: function(item, data) {
-				var datasetLabel = data.datasets[item.datasetIndex].label || '';
-				var dataPoint = data.datasets[item.datasetIndex].data[item.index];
-				return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
-			}
+		if (!a0 || !a1 || a0.length !== a1.length) {
+			return false;
 		}
-	}
-});
-
 
-module.exports = function(Chart) {
-
-	Chart.controllers.bubble = Chart.DatasetController.extend({
-		/**
-		 * @protected
-		 */
-		dataElementType: elements.Point,
+		for (i = 0, ilen = a0.length; i < ilen; ++i) {
+			v0 = a0[i];
+			v1 = a1[i];
 
-		/**
-		 * @protected
-		 */
-		update: function(reset) {
-			var me = this;
-			var meta = me.getMeta();
-			var points = meta.data;
-
-			// Update Points
-			helpers.each(points, function(point, index) {
-				me.updateElement(point, index, reset);
-			});
-		},
+			if (v0 instanceof Array && v1 instanceof Array) {
+				if (!helpers.arrayEquals(v0, v1)) {
+					return false;
+				}
+			} else if (v0 !== v1) {
+				// NOTE: two different object instances will never be equal: {x:20} != {x:20}
+				return false;
+			}
+		}
 
-		/**
-		 * @protected
-		 */
-		updateElement: function(point, index, reset) {
-			var me = this;
-			var meta = me.getMeta();
-			var custom = point.custom || {};
-			var xScale = me.getScaleForId(meta.xAxisID);
-			var yScale = me.getScaleForId(meta.yAxisID);
-			var options = me._resolveElementOptions(point, index);
-			var data = me.getDataset().data[index];
-			var dsIndex = me.index;
-
-			var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
-			var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);
-
-			point._xScale = xScale;
-			point._yScale = yScale;
-			point._options = options;
-			point._datasetIndex = dsIndex;
-			point._index = index;
-			point._model = {
-				backgroundColor: options.backgroundColor,
-				borderColor: options.borderColor,
-				borderWidth: options.borderWidth,
-				hitRadius: options.hitRadius,
-				pointStyle: options.pointStyle,
-				rotation: options.rotation,
-				radius: reset ? 0 : options.radius,
-				skip: custom.skip || isNaN(x) || isNaN(y),
-				x: x,
-				y: y,
-			};
+		return true;
+	},
 
-			point.pivot();
-		},
+	/**
+	 * Returns a deep copy of `source` without keeping references on objects and arrays.
+	 * @param {*} source - The value to clone.
+	 * @returns {*}
+	 */
+	clone: function(source) {
+		if (helpers.isArray(source)) {
+			return source.map(helpers.clone);
+		}
 
-		/**
-		 * @protected
-		 */
-		setHoverStyle: function(point) {
-			var model = point._model;
-			var options = point._options;
-			point.$previousStyle = {
-				backgroundColor: model.backgroundColor,
-				borderColor: model.borderColor,
-				borderWidth: model.borderWidth,
-				radius: model.radius
-			};
-			model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor));
-			model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor));
-			model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth);
-			model.radius = options.radius + options.hoverRadius;
-		},
+		if (helpers.isObject(source)) {
+			var target = {};
+			var keys = Object.keys(source);
+			var klen = keys.length;
+			var k = 0;
 
-		/**
-		 * @private
-		 */
-		_resolveElementOptions: function(point, index) {
-			var me = this;
-			var chart = me.chart;
-			var datasets = chart.data.datasets;
-			var dataset = datasets[me.index];
-			var custom = point.custom || {};
-			var options = chart.options.elements.point;
-			var resolve = helpers.options.resolve;
-			var data = dataset.data[index];
-			var values = {};
-			var i, ilen, key;
-
-			// Scriptable options
-			var context = {
-				chart: chart,
-				dataIndex: index,
-				dataset: dataset,
-				datasetIndex: me.index
-			};
+			for (; k < klen; ++k) {
+				target[keys[k]] = helpers.clone(source[keys[k]]);
+			}
 
-			var keys = [
-				'backgroundColor',
-				'borderColor',
-				'borderWidth',
-				'hoverBackgroundColor',
-				'hoverBorderColor',
-				'hoverBorderWidth',
-				'hoverRadius',
-				'hitRadius',
-				'pointStyle',
-				'rotation'
-			];
-
-			for (i = 0, ilen = keys.length; i < ilen; ++i) {
-				key = keys[i];
-				values[key] = resolve([
-					custom[key],
-					dataset[key],
-					options[key]
-				], context, index);
-			}
-
-			// Custom radius resolution
-			values.radius = resolve([
-				custom.radius,
-				data ? data.r : undefined,
-				dataset.radius,
-				options.radius
-			], context, index);
-			return values;
+			return target;
 		}
-	});
-};
 
-},{"26":26,"41":41,"46":46}],17:[function(require,module,exports){
-'use strict';
+		return source;
+	},
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+	/**
+	 * The default merger when Chart.helpers.merge is called without merger option.
+	 * Note(SB): also used by mergeConfig and mergeScaleConfig as fallback.
+	 * @private
+	 */
+	_merger: function(key, target, source, options) {
+		var tval = target[key];
+		var sval = source[key];
 
-defaults._set('doughnut', {
-	animation: {
-		// Boolean - Whether we animate the rotation of the Doughnut
-		animateRotate: true,
-		// Boolean - Whether we animate scaling the Doughnut from the centre
-		animateScale: false
-	},
-	hover: {
-		mode: 'single'
+		if (helpers.isObject(tval) && helpers.isObject(sval)) {
+			helpers.merge(tval, sval, options);
+		} else {
+			target[key] = helpers.clone(sval);
+		}
 	},
-	legendCallback: function(chart) {
-		var text = [];
-		text.push('<ul class="' + chart.id + '-legend">');
 
-		var data = chart.data;
-		var datasets = data.datasets;
-		var labels = data.labels;
+	/**
+	 * Merges source[key] in target[key] only if target[key] is undefined.
+	 * @private
+	 */
+	_mergerIf: function(key, target, source) {
+		var tval = target[key];
+		var sval = source[key];
 
-		if (datasets.length) {
-			for (var i = 0; i < datasets[0].data.length; ++i) {
-				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
-				if (labels[i]) {
-					text.push(labels[i]);
-				}
-				text.push('</li>');
-			}
+		if (helpers.isObject(tval) && helpers.isObject(sval)) {
+			helpers.mergeIf(tval, sval);
+		} else if (!target.hasOwnProperty(key)) {
+			target[key] = helpers.clone(sval);
 		}
-
-		text.push('</ul>');
-		return text.join('');
 	},
-	legend: {
-		labels: {
-			generateLabels: function(chart) {
-				var data = chart.data;
-				if (data.labels.length && data.datasets.length) {
-					return data.labels.map(function(label, i) {
-						var meta = chart.getDatasetMeta(0);
-						var ds = data.datasets[0];
-						var arc = meta.data[i];
-						var custom = arc && arc.custom || {};
-						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
-						var arcOpts = chart.options.elements.arc;
-						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
-						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
-						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
 
-						return {
-							text: label,
-							fillStyle: fill,
-							strokeStyle: stroke,
-							lineWidth: bw,
-							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
+	/**
+	 * Recursively deep copies `source` properties into `target` with the given `options`.
+	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
+	 * @param {object} target - The target object in which all sources are merged into.
+	 * @param {object|object[]} source - Object(s) to merge into `target`.
+	 * @param {object} [options] - Merging options:
+	 * @param {function} [options.merger] - The merge method (key, target, source, options)
+	 * @returns {object} The `target` object.
+	 */
+	merge: function(target, source, options) {
+		var sources = helpers.isArray(source) ? source : [source];
+		var ilen = sources.length;
+		var merge, i, keys, klen, k;
 
-							// Extra data used for toggling the correct item
-							index: i
-						};
-					});
-				}
-				return [];
-			}
-		},
+		if (!helpers.isObject(target)) {
+			return target;
+		}
 
-		onClick: function(e, legendItem) {
-			var index = legendItem.index;
-			var chart = this.chart;
-			var i, ilen, meta;
+		options = options || {};
+		merge = options.merger || helpers._merger;
 
-			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
-				meta = chart.getDatasetMeta(i);
-				// toggle visibility of index if exists
-				if (meta.data[index]) {
-					meta.data[index].hidden = !meta.data[index].hidden;
-				}
+		for (i = 0; i < ilen; ++i) {
+			source = sources[i];
+			if (!helpers.isObject(source)) {
+				continue;
 			}
 
-			chart.update();
+			keys = Object.keys(source);
+			for (k = 0, klen = keys.length; k < klen; ++k) {
+				merge(keys[k], target, source, options);
+			}
 		}
+
+		return target;
 	},
 
-	// The percentage of the chart that we cut out of the middle.
-	cutoutPercentage: 50,
+	/**
+	 * Recursively deep copies `source` properties into `target` *only* if not defined in target.
+	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
+	 * @param {object} target - The target object in which all sources are merged into.
+	 * @param {object|object[]} source - Object(s) to merge into `target`.
+	 * @returns {object} The `target` object.
+	 */
+	mergeIf: function(target, source) {
+		return helpers.merge(target, source, {merger: helpers._mergerIf});
+	},
 
-	// The rotation of the chart, where the first data arc begins.
-	rotation: Math.PI * -0.5,
+	/**
+	 * Applies the contents of two or more objects together into the first object.
+	 * @param {object} target - The target object in which all objects are merged into.
+	 * @param {object} arg1 - Object containing additional properties to merge in target.
+	 * @param {object} argN - Additional objects containing properties to merge in target.
+	 * @returns {object} The `target` object.
+	 */
+	extend: function(target) {
+		var setFn = function(value, key) {
+			target[key] = value;
+		};
+		for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
+			helpers.each(arguments[i], setFn);
+		}
+		return target;
+	},
 
-	// The total circumference of the chart.
-	circumference: Math.PI * 2.0,
+	/**
+	 * Basic javascript inheritance based on the model created in Backbone.js
+	 */
+	inherits: function(extensions) {
+		var me = this;
+		var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
+			return me.apply(this, arguments);
+		};
 
-	// Need to override these to give a nice default
-	tooltips: {
-		callbacks: {
-			title: function() {
-				return '';
-			},
-			label: function(tooltipItem, data) {
-				var dataLabel = data.labels[tooltipItem.index];
-				var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
+		var Surrogate = function() {
+			this.constructor = ChartElement;
+		};
 
-				if (helpers.isArray(dataLabel)) {
-					// show value on first line of multiline label
-					// need to clone because we are changing the value
-					dataLabel = dataLabel.slice();
-					dataLabel[0] += value;
-				} else {
-					dataLabel += value;
-				}
+		Surrogate.prototype = me.prototype;
+		ChartElement.prototype = new Surrogate();
+		ChartElement.extend = helpers.inherits;
 
-				return dataLabel;
-			}
+		if (extensions) {
+			helpers.extend(ChartElement.prototype, extensions);
 		}
-	}
-});
-
-defaults._set('pie', helpers.clone(defaults.doughnut));
-defaults._set('pie', {
-	cutoutPercentage: 0
-});
-
-module.exports = function(Chart) {
-
-	Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({
 
-		dataElementType: elements.Arc,
+		ChartElement.__super__ = me.prototype;
+		return ChartElement;
+	}
+};
 
-		linkScales: helpers.noop,
+var helpers_core = helpers;
 
-		// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
-		getRingIndex: function(datasetIndex) {
-			var ringIndex = 0;
+// DEPRECATIONS
 
-			for (var j = 0; j < datasetIndex; ++j) {
-				if (this.chart.isDatasetVisible(j)) {
-					++ringIndex;
-				}
-			}
+/**
+ * Provided for backward compatibility, use Chart.helpers.callback instead.
+ * @function Chart.helpers.callCallback
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.callCallback = helpers.callback;
 
-			return ringIndex;
-		},
+/**
+ * Provided for backward compatibility, use Array.prototype.indexOf instead.
+ * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
+ * @function Chart.helpers.indexOf
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.indexOf = function(array, item, fromIndex) {
+	return Array.prototype.indexOf.call(array, item, fromIndex);
+};
 
-		update: function(reset) {
-			var me = this;
-			var chart = me.chart;
-			var chartArea = chart.chartArea;
-			var opts = chart.options;
-			var arcOpts = opts.elements.arc;
-			var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth;
-			var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth;
-			var minSize = Math.min(availableWidth, availableHeight);
-			var offset = {x: 0, y: 0};
-			var meta = me.getMeta();
-			var cutoutPercentage = opts.cutoutPercentage;
-			var circumference = opts.circumference;
-
-			// If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
-			if (circumference < Math.PI * 2.0) {
-				var startAngle = opts.rotation % (Math.PI * 2.0);
-				startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
-				var endAngle = startAngle + circumference;
-				var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
-				var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
-				var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
-				var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
-				var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
-				var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
-				var cutout = cutoutPercentage / 100.0;
-				var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
-				var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
-				var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
-				minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
-				offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
-			}
-
-			chart.borderWidth = me.getMaxBorderWidth(meta.data);
-			chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
-			chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
-			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
-			chart.offsetX = offset.x * chart.outerRadius;
-			chart.offsetY = offset.y * chart.outerRadius;
-
-			meta.total = me.calculateTotal();
-
-			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
-			me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0);
-
-			helpers.each(meta.data, function(arc, index) {
-				me.updateElement(arc, index, reset);
-			});
-		},
+/**
+ * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
+ * @function Chart.helpers.getValueOrDefault
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.getValueOrDefault = helpers.valueOrDefault;
 
-		updateElement: function(arc, index, reset) {
-			var me = this;
-			var chart = me.chart;
-			var chartArea = chart.chartArea;
-			var opts = chart.options;
-			var animationOpts = opts.animation;
-			var centerX = (chartArea.left + chartArea.right) / 2;
-			var centerY = (chartArea.top + chartArea.bottom) / 2;
-			var startAngle = opts.rotation; // non reset case handled later
-			var endAngle = opts.rotation; // non reset case handled later
-			var dataset = me.getDataset();
-			var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
-			var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
-			var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
-			var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
-
-			helpers.extend(arc, {
-				// Utility
-				_datasetIndex: me.index,
-				_index: index,
-
-				// Desired view properties
-				_model: {
-					x: centerX + chart.offsetX,
-					y: centerY + chart.offsetY,
-					startAngle: startAngle,
-					endAngle: endAngle,
-					circumference: circumference,
-					outerRadius: outerRadius,
-					innerRadius: innerRadius,
-					label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
-				}
-			});
+/**
+ * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
+ * @function Chart.helpers.getValueAtIndexOrDefault
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
 
-			var model = arc._model;
+/**
+ * Easing functions adapted from Robert Penner's easing equations.
+ * @namespace Chart.helpers.easingEffects
+ * @see http://www.robertpenner.com/easing/
+ */
+var effects = {
+	linear: function(t) {
+		return t;
+	},
 
-			// Resets the visual styles
-			var custom = arc.custom || {};
-			var valueOrDefault = helpers.valueAtIndexOrDefault;
-			var elementOpts = this.chart.options.elements.arc;
-			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
-			model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
-			model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
+	easeInQuad: function(t) {
+		return t * t;
+	},
 
-			// Set correct angles if not resetting
-			if (!reset || !animationOpts.animateRotate) {
-				if (index === 0) {
-					model.startAngle = opts.rotation;
-				} else {
-					model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
-				}
+	easeOutQuad: function(t) {
+		return -t * (t - 2);
+	},
 
-				model.endAngle = model.startAngle + model.circumference;
-			}
+	easeInOutQuad: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t;
+		}
+		return -0.5 * ((--t) * (t - 2) - 1);
+	},
 
-			arc.pivot();
-		},
+	easeInCubic: function(t) {
+		return t * t * t;
+	},
 
-		calculateTotal: function() {
-			var dataset = this.getDataset();
-			var meta = this.getMeta();
-			var total = 0;
-			var value;
+	easeOutCubic: function(t) {
+		return (t = t - 1) * t * t + 1;
+	},
 
-			helpers.each(meta.data, function(element, index) {
-				value = dataset.data[index];
-				if (!isNaN(value) && !element.hidden) {
-					total += Math.abs(value);
-				}
-			});
+	easeInOutCubic: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t;
+		}
+		return 0.5 * ((t -= 2) * t * t + 2);
+	},
 
-			/* if (total === 0) {
-				total = NaN;
-			}*/
+	easeInQuart: function(t) {
+		return t * t * t * t;
+	},
 
-			return total;
-		},
+	easeOutQuart: function(t) {
+		return -((t = t - 1) * t * t * t - 1);
+	},
 
-		calculateCircumference: function(value) {
-			var total = this.getMeta().total;
-			if (total > 0 && !isNaN(value)) {
-				return (Math.PI * 2.0) * (Math.abs(value) / total);
-			}
-			return 0;
-		},
+	easeInOutQuart: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t * t;
+		}
+		return -0.5 * ((t -= 2) * t * t * t - 2);
+	},
 
-		// gets the max border or hover width to properly scale pie charts
-		getMaxBorderWidth: function(arcs) {
-			var max = 0;
-			var index = this.index;
-			var length = arcs.length;
-			var borderWidth;
-			var hoverWidth;
+	easeInQuint: function(t) {
+		return t * t * t * t * t;
+	},
 
-			for (var i = 0; i < length; i++) {
-				borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0;
-				hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;
+	easeOutQuint: function(t) {
+		return (t = t - 1) * t * t * t * t + 1;
+	},
 
-				max = borderWidth > max ? borderWidth : max;
-				max = hoverWidth > max ? hoverWidth : max;
-			}
-			return max;
+	easeInOutQuint: function(t) {
+		if ((t /= 0.5) < 1) {
+			return 0.5 * t * t * t * t * t;
 		}
-	});
-};
+		return 0.5 * ((t -= 2) * t * t * t * t + 2);
+	},
 
-},{"26":26,"41":41,"46":46}],18:[function(require,module,exports){
-'use strict';
+	easeInSine: function(t) {
+		return -Math.cos(t * (Math.PI / 2)) + 1;
+	},
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+	easeOutSine: function(t) {
+		return Math.sin(t * (Math.PI / 2));
+	},
 
-defaults._set('line', {
-	showLines: true,
-	spanGaps: false,
+	easeInOutSine: function(t) {
+		return -0.5 * (Math.cos(Math.PI * t) - 1);
+	},
 
-	hover: {
-		mode: 'label'
+	easeInExpo: function(t) {
+		return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
 	},
 
-	scales: {
-		xAxes: [{
-			type: 'category',
-			id: 'x-axis-0'
-		}],
-		yAxes: [{
-			type: 'linear',
-			id: 'y-axis-0'
-		}]
-	}
-});
+	easeOutExpo: function(t) {
+		return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
+	},
 
-module.exports = function(Chart) {
+	easeInOutExpo: function(t) {
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if ((t /= 0.5) < 1) {
+			return 0.5 * Math.pow(2, 10 * (t - 1));
+		}
+		return 0.5 * (-Math.pow(2, -10 * --t) + 2);
+	},
 
-	function lineEnabled(dataset, options) {
-		return helpers.valueOrDefault(dataset.showLine, options.showLines);
-	}
+	easeInCirc: function(t) {
+		if (t >= 1) {
+			return t;
+		}
+		return -(Math.sqrt(1 - t * t) - 1);
+	},
 
-	Chart.controllers.line = Chart.DatasetController.extend({
+	easeOutCirc: function(t) {
+		return Math.sqrt(1 - (t = t - 1) * t);
+	},
 
-		datasetElementType: elements.Line,
+	easeInOutCirc: function(t) {
+		if ((t /= 0.5) < 1) {
+			return -0.5 * (Math.sqrt(1 - t * t) - 1);
+		}
+		return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
+	},
 
-		dataElementType: elements.Point,
+	easeInElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.3;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+	},
 
-		update: function(reset) {
-			var me = this;
-			var meta = me.getMeta();
-			var line = meta.dataset;
-			var points = meta.data || [];
-			var options = me.chart.options;
-			var lineElementOptions = options.elements.line;
-			var scale = me.getScaleForId(meta.yAxisID);
-			var i, ilen, custom;
-			var dataset = me.getDataset();
-			var showLine = lineEnabled(dataset, options);
+	easeOutElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if (t === 1) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.3;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
+	},
 
-			// Update Line
-			if (showLine) {
-				custom = line.custom || {};
+	easeInOutElastic: function(t) {
+		var s = 1.70158;
+		var p = 0;
+		var a = 1;
+		if (t === 0) {
+			return 0;
+		}
+		if ((t /= 0.5) === 2) {
+			return 1;
+		}
+		if (!p) {
+			p = 0.45;
+		}
+		if (a < 1) {
+			a = 1;
+			s = p / 4;
+		} else {
+			s = p / (2 * Math.PI) * Math.asin(1 / a);
+		}
+		if (t < 1) {
+			return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+		}
+		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
+	},
+	easeInBack: function(t) {
+		var s = 1.70158;
+		return t * t * ((s + 1) * t - s);
+	},
 
-				// Compatibility: If the properties are defined with only the old name, use those values
-				if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
-					dataset.lineTension = dataset.tension;
-				}
+	easeOutBack: function(t) {
+		var s = 1.70158;
+		return (t = t - 1) * t * ((s + 1) * t + s) + 1;
+	},
 
-				// Utility
-				line._scale = scale;
-				line._datasetIndex = me.index;
-				// Data
-				line._children = points;
-				// Model
-				line._model = {
-					// Appearance
-					// The default behavior of lines is to break at null values, according
-					// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
-					// This option gives lines the ability to span gaps
-					spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
-					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
-					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
-					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
-					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
-					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
-					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
-					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
-					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
-					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
-					steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
-					cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
-				};
+	easeInOutBack: function(t) {
+		var s = 1.70158;
+		if ((t /= 0.5) < 1) {
+			return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
+		}
+		return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
+	},
 
-				line.pivot();
-			}
+	easeInBounce: function(t) {
+		return 1 - effects.easeOutBounce(1 - t);
+	},
 
-			// Update Points
-			for (i = 0, ilen = points.length; i < ilen; ++i) {
-				me.updateElement(points[i], i, reset);
-			}
+	easeOutBounce: function(t) {
+		if (t < (1 / 2.75)) {
+			return 7.5625 * t * t;
+		}
+		if (t < (2 / 2.75)) {
+			return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
+		}
+		if (t < (2.5 / 2.75)) {
+			return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
+		}
+		return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
+	},
 
-			if (showLine && line._model.tension !== 0) {
-				me.updateBezierControlPoints();
-			}
+	easeInOutBounce: function(t) {
+		if (t < 0.5) {
+			return effects.easeInBounce(t * 2) * 0.5;
+		}
+		return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
+	}
+};
 
-			// Now pivot the point for animation
-			for (i = 0, ilen = points.length; i < ilen; ++i) {
-				points[i].pivot();
-			}
-		},
+var helpers_easing = {
+	effects: effects
+};
 
-		getPointBackgroundColor: function(point, index) {
-			var backgroundColor = this.chart.options.elements.point.backgroundColor;
-			var dataset = this.getDataset();
-			var custom = point.custom || {};
+// DEPRECATIONS
 
-			if (custom.backgroundColor) {
-				backgroundColor = custom.backgroundColor;
-			} else if (dataset.pointBackgroundColor) {
-				backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
-			} else if (dataset.backgroundColor) {
-				backgroundColor = dataset.backgroundColor;
-			}
+/**
+ * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
+ * @function Chart.helpers.easingEffects
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.easingEffects = effects;
 
-			return backgroundColor;
-		},
+var PI = Math.PI;
+var RAD_PER_DEG = PI / 180;
+var DOUBLE_PI = PI * 2;
+var HALF_PI = PI / 2;
+var QUARTER_PI = PI / 4;
+var TWO_THIRDS_PI = PI * 2 / 3;
 
-		getPointBorderColor: function(point, index) {
-			var borderColor = this.chart.options.elements.point.borderColor;
-			var dataset = this.getDataset();
-			var custom = point.custom || {};
+/**
+ * @namespace Chart.helpers.canvas
+ */
+var exports$1 = {
+	/**
+	 * Clears the entire canvas associated to the given `chart`.
+	 * @param {Chart} chart - The chart for which to clear the canvas.
+	 */
+	clear: function(chart) {
+		chart.ctx.clearRect(0, 0, chart.width, chart.height);
+	},
 
-			if (custom.borderColor) {
-				borderColor = custom.borderColor;
-			} else if (dataset.pointBorderColor) {
-				borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
-			} else if (dataset.borderColor) {
-				borderColor = dataset.borderColor;
+	/**
+	 * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
+	 * given size (width, height) and the same `radius` for all corners.
+	 * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
+	 * @param {number} x - The x axis of the coordinate for the rectangle starting point.
+	 * @param {number} y - The y axis of the coordinate for the rectangle starting point.
+	 * @param {number} width - The rectangle's width.
+	 * @param {number} height - The rectangle's height.
+	 * @param {number} radius - The rounded amount (in pixels) for the four corners.
+	 * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
+	 */
+	roundedRect: function(ctx, x, y, width, height, radius) {
+		if (radius) {
+			var r = Math.min(radius, height / 2, width / 2);
+			var left = x + r;
+			var top = y + r;
+			var right = x + width - r;
+			var bottom = y + height - r;
+
+			ctx.moveTo(x, top);
+			if (left < right && top < bottom) {
+				ctx.arc(left, top, r, -PI, -HALF_PI);
+				ctx.arc(right, top, r, -HALF_PI, 0);
+				ctx.arc(right, bottom, r, 0, HALF_PI);
+				ctx.arc(left, bottom, r, HALF_PI, PI);
+			} else if (left < right) {
+				ctx.moveTo(left, y);
+				ctx.arc(right, top, r, -HALF_PI, HALF_PI);
+				ctx.arc(left, top, r, HALF_PI, PI + HALF_PI);
+			} else if (top < bottom) {
+				ctx.arc(left, top, r, -PI, 0);
+				ctx.arc(left, bottom, r, 0, PI);
+			} else {
+				ctx.arc(left, top, r, -PI, PI);
 			}
+			ctx.closePath();
+			ctx.moveTo(x, y);
+		} else {
+			ctx.rect(x, y, width, height);
+		}
+	},
 
-			return borderColor;
-		},
-
-		getPointBorderWidth: function(point, index) {
-			var borderWidth = this.chart.options.elements.point.borderWidth;
-			var dataset = this.getDataset();
-			var custom = point.custom || {};
+	drawPoint: function(ctx, style, radius, x, y, rotation) {
+		var type, xOffset, yOffset, size, cornerRadius;
+		var rad = (rotation || 0) * RAD_PER_DEG;
 
-			if (!isNaN(custom.borderWidth)) {
-				borderWidth = custom.borderWidth;
-			} else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) {
-				borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
-			} else if (!isNaN(dataset.borderWidth)) {
-				borderWidth = dataset.borderWidth;
+		if (style && typeof style === 'object') {
+			type = style.toString();
+			if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
+				ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
+				return;
 			}
+		}
 
-			return borderWidth;
-		},
+		if (isNaN(radius) || radius <= 0) {
+			return;
+		}
 
-		getPointRotation: function(point, index) {
-			var pointRotation = this.chart.options.elements.point.rotation;
-			var dataset = this.getDataset();
-			var custom = point.custom || {};
+		ctx.beginPath();
 
-			if (!isNaN(custom.rotation)) {
-				pointRotation = custom.rotation;
-			} else if (!isNaN(dataset.pointRotation) || helpers.isArray(dataset.pointRotation)) {
-				pointRotation = helpers.valueAtIndexOrDefault(dataset.pointRotation, index, pointRotation);
+		switch (style) {
+		// Default includes circle
+		default:
+			ctx.arc(x, y, radius, 0, DOUBLE_PI);
+			ctx.closePath();
+			break;
+		case 'triangle':
+			ctx.moveTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			rad += TWO_THIRDS_PI;
+			ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			rad += TWO_THIRDS_PI;
+			ctx.lineTo(x + Math.sin(rad) * radius, y - Math.cos(rad) * radius);
+			ctx.closePath();
+			break;
+		case 'rectRounded':
+			// NOTE: the rounded rect implementation changed to use `arc` instead of
+			// `quadraticCurveTo` since it generates better results when rect is
+			// almost a circle. 0.516 (instead of 0.5) produces results with visually
+			// closer proportion to the previous impl and it is inscribed in the
+			// circle with `radius`. For more details, see the following PRs:
+			// https://github.com/chartjs/Chart.js/issues/5597
+			// https://github.com/chartjs/Chart.js/issues/5858
+			cornerRadius = radius * 0.516;
+			size = radius - cornerRadius;
+			xOffset = Math.cos(rad + QUARTER_PI) * size;
+			yOffset = Math.sin(rad + QUARTER_PI) * size;
+			ctx.arc(x - xOffset, y - yOffset, cornerRadius, rad - PI, rad - HALF_PI);
+			ctx.arc(x + yOffset, y - xOffset, cornerRadius, rad - HALF_PI, rad);
+			ctx.arc(x + xOffset, y + yOffset, cornerRadius, rad, rad + HALF_PI);
+			ctx.arc(x - yOffset, y + xOffset, cornerRadius, rad + HALF_PI, rad + PI);
+			ctx.closePath();
+			break;
+		case 'rect':
+			if (!rotation) {
+				size = Math.SQRT1_2 * radius;
+				ctx.rect(x - size, y - size, 2 * size, 2 * size);
+				break;
 			}
-			return pointRotation;
-		},
-
-		updateElement: function(point, index, reset) {
-			var me = this;
-			var meta = me.getMeta();
-			var custom = point.custom || {};
-			var dataset = me.getDataset();
-			var datasetIndex = me.index;
-			var value = dataset.data[index];
-			var yScale = me.getScaleForId(meta.yAxisID);
-			var xScale = me.getScaleForId(meta.xAxisID);
-			var pointOptions = me.chart.options.elements.point;
-			var x, y;
+			rad += QUARTER_PI;
+			/* falls through */
+		case 'rectRot':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			ctx.closePath();
+			break;
+		case 'crossRot':
+			rad += QUARTER_PI;
+			/* falls through */
+		case 'cross':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			break;
+		case 'star':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			rad += QUARTER_PI;
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			ctx.moveTo(x + yOffset, y - xOffset);
+			ctx.lineTo(x - yOffset, y + xOffset);
+			break;
+		case 'line':
+			xOffset = Math.cos(rad) * radius;
+			yOffset = Math.sin(rad) * radius;
+			ctx.moveTo(x - xOffset, y - yOffset);
+			ctx.lineTo(x + xOffset, y + yOffset);
+			break;
+		case 'dash':
+			ctx.moveTo(x, y);
+			ctx.lineTo(x + Math.cos(rad) * radius, y + Math.sin(rad) * radius);
+			break;
+		}
 
-			// Compatibility: If the properties are defined with only the old name, use those values
-			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
-				dataset.pointRadius = dataset.radius;
-			}
-			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
-				dataset.pointHitRadius = dataset.hitRadius;
-			}
+		ctx.fill();
+		ctx.stroke();
+	},
 
-			x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
-			y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
+	/**
+	 * Returns true if the point is inside the rectangle
+	 * @param {object} point - The point to test
+	 * @param {object} area - The rectangle
+	 * @returns {boolean}
+	 * @private
+	 */
+	_isPointInArea: function(point, area) {
+		var epsilon = 1e-6; // 1e-6 is margin in pixels for accumulated error.
 
-			// Utility
-			point._xScale = xScale;
-			point._yScale = yScale;
-			point._datasetIndex = datasetIndex;
-			point._index = index;
+		return point.x > area.left - epsilon && point.x < area.right + epsilon &&
+			point.y > area.top - epsilon && point.y < area.bottom + epsilon;
+	},
 
-			// Desired view properties
-			point._model = {
-				x: x,
-				y: y,
-				skip: custom.skip || isNaN(x) || isNaN(y),
-				// Appearance
-				radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
-				pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
-				rotation: me.getPointRotation(point, index),
-				backgroundColor: me.getPointBackgroundColor(point, index),
-				borderColor: me.getPointBorderColor(point, index),
-				borderWidth: me.getPointBorderWidth(point, index),
-				tension: meta.dataset._model ? meta.dataset._model.tension : 0,
-				steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
-				// Tooltip
-				hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
-			};
-		},
+	clipArea: function(ctx, area) {
+		ctx.save();
+		ctx.beginPath();
+		ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
+		ctx.clip();
+	},
 
-		calculatePointY: function(value, index, datasetIndex) {
-			var me = this;
-			var chart = me.chart;
-			var meta = me.getMeta();
-			var yScale = me.getScaleForId(meta.yAxisID);
-			var sumPos = 0;
-			var sumNeg = 0;
-			var i, ds, dsMeta;
-
-			if (yScale.options.stacked) {
-				for (i = 0; i < datasetIndex; i++) {
-					ds = chart.data.datasets[i];
-					dsMeta = chart.getDatasetMeta(i);
-					if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
-						var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
-						if (stackedRightValue < 0) {
-							sumNeg += stackedRightValue || 0;
-						} else {
-							sumPos += stackedRightValue || 0;
-						}
-					}
-				}
+	unclipArea: function(ctx) {
+		ctx.restore();
+	},
 
-				var rightValue = Number(yScale.getRightValue(value));
-				if (rightValue < 0) {
-					return yScale.getPixelForValue(sumNeg + rightValue);
-				}
-				return yScale.getPixelForValue(sumPos + rightValue);
+	lineTo: function(ctx, previous, target, flip) {
+		var stepped = target.steppedLine;
+		if (stepped) {
+			if (stepped === 'middle') {
+				var midpoint = (previous.x + target.x) / 2.0;
+				ctx.lineTo(midpoint, flip ? target.y : previous.y);
+				ctx.lineTo(midpoint, flip ? previous.y : target.y);
+			} else if ((stepped === 'after' && !flip) || (stepped !== 'after' && flip)) {
+				ctx.lineTo(previous.x, target.y);
+			} else {
+				ctx.lineTo(target.x, previous.y);
 			}
+			ctx.lineTo(target.x, target.y);
+			return;
+		}
 
-			return yScale.getPixelForValue(value);
-		},
+		if (!target.tension) {
+			ctx.lineTo(target.x, target.y);
+			return;
+		}
 
-		updateBezierControlPoints: function() {
-			var me = this;
-			var meta = me.getMeta();
-			var area = me.chart.chartArea;
-			var points = (meta.data || []);
-			var i, ilen, point, model, controlPoints;
-
-			// Only consider points that are drawn in case the spanGaps option is used
-			if (meta.dataset._model.spanGaps) {
-				points = points.filter(function(pt) {
-					return !pt._model.skip;
-				});
-			}
+		ctx.bezierCurveTo(
+			flip ? previous.controlPointPreviousX : previous.controlPointNextX,
+			flip ? previous.controlPointPreviousY : previous.controlPointNextY,
+			flip ? target.controlPointNextX : target.controlPointPreviousX,
+			flip ? target.controlPointNextY : target.controlPointPreviousY,
+			target.x,
+			target.y);
+	}
+};
 
-			function capControlPoint(pt, min, max) {
-				return Math.max(Math.min(pt, max), min);
-			}
+var helpers_canvas = exports$1;
 
-			if (meta.dataset._model.cubicInterpolationMode === 'monotone') {
-				helpers.splineCurveMonotone(points);
-			} else {
-				for (i = 0, ilen = points.length; i < ilen; ++i) {
-					point = points[i];
-					model = point._model;
-					controlPoints = helpers.splineCurve(
-						helpers.previousItem(points, i)._model,
-						model,
-						helpers.nextItem(points, i)._model,
-						meta.dataset._model.tension
-					);
-					model.controlPointPreviousX = controlPoints.previous.x;
-					model.controlPointPreviousY = controlPoints.previous.y;
-					model.controlPointNextX = controlPoints.next.x;
-					model.controlPointNextY = controlPoints.next.y;
-				}
-			}
+// DEPRECATIONS
 
-			if (me.chart.options.elements.line.capBezierPoints) {
-				for (i = 0, ilen = points.length; i < ilen; ++i) {
-					model = points[i]._model;
-					model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
-					model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
-					model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
-					model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
-				}
-			}
-		},
+/**
+ * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
+ * @namespace Chart.helpers.clear
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.clear = exports$1.clear;
 
-		draw: function() {
-			var me = this;
-			var chart = me.chart;
-			var meta = me.getMeta();
-			var points = meta.data || [];
-			var area = chart.chartArea;
-			var ilen = points.length;
-			var halfBorderWidth;
-			var i = 0;
-
-			if (lineEnabled(me.getDataset(), chart.options)) {
-				halfBorderWidth = (meta.dataset._model.borderWidth || 0) / 2;
-
-				helpers.canvas.clipArea(chart.ctx, {
-					left: area.left,
-					right: area.right,
-					top: area.top - halfBorderWidth,
-					bottom: area.bottom + halfBorderWidth
-				});
+/**
+ * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
+ * @namespace Chart.helpers.drawRoundedRectangle
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers_core.drawRoundedRectangle = function(ctx) {
+	ctx.beginPath();
+	exports$1.roundedRect.apply(exports$1, arguments);
+};
 
-				meta.dataset.draw();
+var defaults = {
+	/**
+	 * @private
+	 */
+	_set: function(scope, values) {
+		return helpers_core.merge(this[scope] || (this[scope] = {}), values);
+	}
+};
 
-				helpers.canvas.unclipArea(chart.ctx);
-			}
+defaults._set('global', {
+	defaultColor: 'rgba(0,0,0,0.1)',
+	defaultFontColor: '#666',
+	defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
+	defaultFontSize: 12,
+	defaultFontStyle: 'normal',
+	defaultLineHeight: 1.2,
+	showLines: true
+});
 
-			// Draw the points
-			for (; i < ilen; ++i) {
-				points[i].draw(area);
-			}
-		},
+var core_defaults = defaults;
 
-		setHoverStyle: function(element) {
-			// Point
-			var dataset = this.chart.data.datasets[element._datasetIndex];
-			var index = element._index;
-			var custom = element.custom || {};
-			var model = element._model;
-
-			element.$previousStyle = {
-				backgroundColor: model.backgroundColor,
-				borderColor: model.borderColor,
-				borderWidth: model.borderWidth,
-				radius: model.radius
-			};
+var valueOrDefault = helpers_core.valueOrDefault;
 
-			model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
-			model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
-			model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
-			model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
-		},
-	});
-};
+/**
+ * Converts the given font object into a CSS font string.
+ * @param {object} font - A font object.
+ * @return {string} The CSS font string. See https://developer.mozilla.org/en-US/docs/Web/CSS/font
+ * @private
+ */
+function toFontString(font) {
+	if (!font || helpers_core.isNullOrUndef(font.size) || helpers_core.isNullOrUndef(font.family)) {
+		return null;
+	}
+
+	return (font.style ? font.style + ' ' : '')
+		+ (font.weight ? font.weight + ' ' : '')
+		+ font.size + 'px '
+		+ font.family;
+}
 
-},{"26":26,"41":41,"46":46}],19:[function(require,module,exports){
-'use strict';
+/**
+ * @alias Chart.helpers.options
+ * @namespace
+ */
+var helpers_options = {
+	/**
+	 * Converts the given line height `value` in pixels for a specific font `size`.
+	 * @param {number|string} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
+	 * @param {number} size - The font size (in pixels) used to resolve relative `value`.
+	 * @returns {number} The effective line height in pixels (size * 1.2 if value is invalid).
+	 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
+	 * @since 2.7.0
+	 */
+	toLineHeight: function(value, size) {
+		var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
+		if (!matches || matches[1] === 'normal') {
+			return size * 1.2;
+		}
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+		value = +matches[2];
 
-defaults._set('polarArea', {
-	scale: {
-		type: 'radialLinear',
-		angleLines: {
-			display: false
-		},
-		gridLines: {
-			circular: true
-		},
-		pointLabels: {
-			display: false
-		},
-		ticks: {
-			beginAtZero: true
+		switch (matches[3]) {
+		case 'px':
+			return value;
+		case '%':
+			value /= 100;
+			break;
+		default:
+			break;
 		}
-	},
 
-	// Boolean - Whether to animate the rotation of the chart
-	animation: {
-		animateRotate: true,
-		animateScale: true
+		return size * value;
 	},
 
-	startAngle: -0.5 * Math.PI,
-	legendCallback: function(chart) {
-		var text = [];
-		text.push('<ul class="' + chart.id + '-legend">');
-
-		var data = chart.data;
-		var datasets = data.datasets;
-		var labels = data.labels;
+	/**
+	 * Converts the given value into a padding object with pre-computed width/height.
+	 * @param {number|object} value - If a number, set the value to all TRBL component,
+	 *  else, if and object, use defined properties and sets undefined ones to 0.
+	 * @returns {object} The padding values (top, right, bottom, left, width, height)
+	 * @since 2.7.0
+	 */
+	toPadding: function(value) {
+		var t, r, b, l;
 
-		if (datasets.length) {
-			for (var i = 0; i < datasets[0].data.length; ++i) {
-				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
-				if (labels[i]) {
-					text.push(labels[i]);
-				}
-				text.push('</li>');
-			}
+		if (helpers_core.isObject(value)) {
+			t = +value.top || 0;
+			r = +value.right || 0;
+			b = +value.bottom || 0;
+			l = +value.left || 0;
+		} else {
+			t = r = b = l = +value || 0;
 		}
 
-		text.push('</ul>');
-		return text.join('');
+		return {
+			top: t,
+			right: r,
+			bottom: b,
+			left: l,
+			height: t + b,
+			width: l + r
+		};
 	},
-	legend: {
-		labels: {
-			generateLabels: function(chart) {
-				var data = chart.data;
-				if (data.labels.length && data.datasets.length) {
-					return data.labels.map(function(label, i) {
-						var meta = chart.getDatasetMeta(0);
-						var ds = data.datasets[0];
-						var arc = meta.data[i];
-						var custom = arc.custom || {};
-						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
-						var arcOpts = chart.options.elements.arc;
-						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
-						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
-						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);
 
-						return {
-							text: label,
-							fillStyle: fill,
-							strokeStyle: stroke,
-							lineWidth: bw,
-							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
+	/**
+	 * Parses font options and returns the font object.
+	 * @param {object} options - A object that contains font options to be parsed.
+	 * @return {object} The font object.
+	 * @todo Support font.* options and renamed to toFont().
+	 * @private
+	 */
+	_parseFont: function(options) {
+		var globalDefaults = core_defaults.global;
+		var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
+		var font = {
+			family: valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily),
+			lineHeight: helpers_core.options.toLineHeight(valueOrDefault(options.lineHeight, globalDefaults.defaultLineHeight), size),
+			size: size,
+			style: valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle),
+			weight: null,
+			string: ''
+		};
 
-							// Extra data used for toggling the correct item
-							index: i
-						};
-					});
-				}
-				return [];
-			}
-		},
+		font.string = toFontString(font);
+		return font;
+	},
 
-		onClick: function(e, legendItem) {
-			var index = legendItem.index;
-			var chart = this.chart;
-			var i, ilen, meta;
+	/**
+	 * Evaluates the given `inputs` sequentially and returns the first defined value.
+	 * @param {Array} inputs - An array of values, falling back to the last value.
+	 * @param {object} [context] - If defined and the current value is a function, the value
+	 * is called with `context` as first argument and the result becomes the new input.
+	 * @param {number} [index] - If defined and the current value is an array, the value
+	 * at `index` become the new input.
+	 * @since 2.7.0
+	 */
+	resolve: function(inputs, context, index) {
+		var i, ilen, value;
 
-			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
-				meta = chart.getDatasetMeta(i);
-				meta.data[index].hidden = !meta.data[index].hidden;
+		for (i = 0, ilen = inputs.length; i < ilen; ++i) {
+			value = inputs[i];
+			if (value === undefined) {
+				continue;
 			}
-
-			chart.update();
-		}
-	},
-
-	// Need to override these to give a nice default
-	tooltips: {
-		callbacks: {
-			title: function() {
-				return '';
-			},
-			label: function(item, data) {
-				return data.labels[item.index] + ': ' + item.yLabel;
+			if (context !== undefined && typeof value === 'function') {
+				value = value(context);
+			}
+			if (index !== undefined && helpers_core.isArray(value)) {
+				value = value[index];
+			}
+			if (value !== undefined) {
+				return value;
 			}
 		}
 	}
-});
-
-module.exports = function(Chart) {
-
-	Chart.controllers.polarArea = Chart.DatasetController.extend({
-
-		dataElementType: elements.Arc,
-
-		linkScales: helpers.noop,
-
-		update: function(reset) {
-			var me = this;
-			var dataset = me.getDataset();
-			var meta = me.getMeta();
-			var start = me.chart.options.startAngle || 0;
-			var starts = me._starts = [];
-			var angles = me._angles = [];
-			var i, ilen, angle;
-
-			me._updateRadius();
-
-			meta.count = me.countVisibleElements();
-
-			for (i = 0, ilen = dataset.data.length; i < ilen; i++) {
-				starts[i] = start;
-				angle = me._computeAngle(i);
-				angles[i] = angle;
-				start += angle;
-			}
-
-			helpers.each(meta.data, function(arc, index) {
-				me.updateElement(arc, index, reset);
-			});
-		},
-
-		/**
-		 * @private
-		 */
-		_updateRadius: function() {
-			var me = this;
-			var chart = me.chart;
-			var chartArea = chart.chartArea;
-			var opts = chart.options;
-			var arcOpts = opts.elements.arc;
-			var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
-
-			chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
-			chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
-			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
-
-			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
-			me.innerRadius = me.outerRadius - chart.radiusLength;
-		},
-
-		updateElement: function(arc, index, reset) {
-			var me = this;
-			var chart = me.chart;
-			var dataset = me.getDataset();
-			var opts = chart.options;
-			var animationOpts = opts.animation;
-			var scale = chart.scale;
-			var labels = chart.data.labels;
-
-			var centerX = scale.xCenter;
-			var centerY = scale.yCenter;
-
-			// var negHalfPI = -0.5 * Math.PI;
-			var datasetStartAngle = opts.startAngle;
-			var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
-			var startAngle = me._starts[index];
-			var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);
-
-			var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
-
-			helpers.extend(arc, {
-				// Utility
-				_datasetIndex: me.index,
-				_index: index,
-				_scale: scale,
-
-				// Desired view properties
-				_model: {
-					x: centerX,
-					y: centerY,
-					innerRadius: 0,
-					outerRadius: reset ? resetRadius : distance,
-					startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
-					endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
-					label: helpers.valueAtIndexOrDefault(labels, index, labels[index])
-				}
-			});
-
-			// Apply border and fill style
-			var elementOpts = this.chart.options.elements.arc;
-			var custom = arc.custom || {};
-			var valueOrDefault = helpers.valueAtIndexOrDefault;
-			var model = arc._model;
-
-			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
-			model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
-			model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
-
-			arc.pivot();
-		},
+};
 
-		countVisibleElements: function() {
-			var dataset = this.getDataset();
-			var meta = this.getMeta();
-			var count = 0;
+var helpers$1 = helpers_core;
+var easing = helpers_easing;
+var canvas = helpers_canvas;
+var options = helpers_options;
+helpers$1.easing = easing;
+helpers$1.canvas = canvas;
+helpers$1.options = options;
 
-			helpers.each(meta.data, function(element, index) {
-				if (!isNaN(dataset.data[index]) && !element.hidden) {
-					count++;
-				}
-			});
+function interpolate(start, view, model, ease) {
+	var keys = Object.keys(model);
+	var i, ilen, key, actual, origin, target, type, c0, c1;
 
-			return count;
-		},
+	for (i = 0, ilen = keys.length; i < ilen; ++i) {
+		key = keys[i];
 
-		/**
-		 * @private
-		 */
-		_computeAngle: function(index) {
-			var me = this;
-			var count = this.getMeta().count;
-			var dataset = me.getDataset();
-			var meta = me.getMeta();
-
-			if (isNaN(dataset.data[index]) || meta.data[index].hidden) {
-				return 0;
-			}
-
-			// Scriptable options
-			var context = {
-				chart: me.chart,
-				dataIndex: index,
-				dataset: dataset,
-				datasetIndex: me.index
-			};
+		target = model[key];
 
-			return helpers.options.resolve([
-				me.chart.options.elements.arc.angle,
-				(2 * Math.PI) / count
-			], context, index);
+		// if a value is added to the model after pivot() has been called, the view
+		// doesn't contain it, so let's initialize the view to the target value.
+		if (!view.hasOwnProperty(key)) {
+			view[key] = target;
 		}
-	});
-};
-
-},{"26":26,"41":41,"46":46}],20:[function(require,module,exports){
-'use strict';
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+		actual = view[key];
 
-defaults._set('radar', {
-	scale: {
-		type: 'radialLinear'
-	},
-	elements: {
-		line: {
-			tension: 0 // no bezier in radar
+		if (actual === target || key[0] === '_') {
+			continue;
 		}
-	}
-});
 
-module.exports = function(Chart) {
-
-	Chart.controllers.radar = Chart.DatasetController.extend({
-
-		datasetElementType: elements.Line,
-
-		dataElementType: elements.Point,
-
-		linkScales: helpers.noop,
+		if (!start.hasOwnProperty(key)) {
+			start[key] = actual;
+		}
 
-		update: function(reset) {
-			var me = this;
-			var meta = me.getMeta();
-			var line = meta.dataset;
-			var points = meta.data;
-			var custom = line.custom || {};
-			var dataset = me.getDataset();
-			var lineElementOptions = me.chart.options.elements.line;
-			var scale = me.chart.scale;
+		origin = start[key];
 
-			// Compatibility: If the properties are defined with only the old name, use those values
-			if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
-				dataset.lineTension = dataset.tension;
-			}
+		type = typeof target;
 
-			helpers.extend(meta.dataset, {
-				// Utility
-				_datasetIndex: me.index,
-				_scale: scale,
-				// Data
-				_children: points,
-				_loop: true,
-				// Model
-				_model: {
-					// Appearance
-					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
-					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
-					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
-					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
-					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
-					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
-					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
-					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
-					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
+		if (type === typeof origin) {
+			if (type === 'string') {
+				c0 = chartjsColor(origin);
+				if (c0.valid) {
+					c1 = chartjsColor(target);
+					if (c1.valid) {
+						view[key] = c1.mix(c0, ease).rgbString();
+						continue;
+					}
 				}
-			});
-
-			meta.dataset.pivot();
-
-			// Update Points
-			helpers.each(points, function(point, index) {
-				me.updateElement(point, index, reset);
-			}, me);
+			} else if (helpers$1.isFinite(origin) && helpers$1.isFinite(target)) {
+				view[key] = origin + (target - origin) * ease;
+				continue;
+			}
+		}
 
-			// Update bezier control points
-			me.updateBezierControlPoints();
-		},
-		updateElement: function(point, index, reset) {
-			var me = this;
-			var custom = point.custom || {};
-			var dataset = me.getDataset();
-			var scale = me.chart.scale;
-			var pointElementOptions = me.chart.options.elements.point;
-			var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
+		view[key] = target;
+	}
+}
 
-			// Compatibility: If the properties are defined with only the old name, use those values
-			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
-				dataset.pointRadius = dataset.radius;
-			}
-			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
-				dataset.pointHitRadius = dataset.hitRadius;
-			}
-
-			helpers.extend(point, {
-				// Utility
-				_datasetIndex: me.index,
-				_index: index,
-				_scale: scale,
-
-				// Desired view properties
-				_model: {
-					x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
-					y: reset ? scale.yCenter : pointPosition.y,
-
-					// Appearance
-					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension),
-					radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
-					backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor),
-					borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
-					borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
-					pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),
-					rotation: custom.rotation ? custom.rotation : helpers.valueAtIndexOrDefault(dataset.pointRotation, index, pointElementOptions.rotation),
-
-					// Tooltip
-					hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius)
-				}
-			});
+var Element = function(configuration) {
+	helpers$1.extend(this, configuration);
+	this.initialize.apply(this, arguments);
+};
 
-			point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
-		},
-		updateBezierControlPoints: function() {
-			var chartArea = this.chart.chartArea;
-			var meta = this.getMeta();
-
-			helpers.each(meta.data, function(point, index) {
-				var model = point._model;
-				var controlPoints = helpers.splineCurve(
-					helpers.previousItem(meta.data, index, true)._model,
-					model,
-					helpers.nextItem(meta.data, index, true)._model,
-					model.tension
-				);
+helpers$1.extend(Element.prototype, {
 
-				// Prevent the bezier going outside of the bounds of the graph
-				model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
-				model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);
+	initialize: function() {
+		this.hidden = false;
+	},
 
-				model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
-				model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);
+	pivot: function() {
+		var me = this;
+		if (!me._view) {
+			me._view = helpers$1.clone(me._model);
+		}
+		me._start = {};
+		return me;
+	},
 
-				// Now pivot the point for animation
-				point.pivot();
-			});
-		},
+	transition: function(ease) {
+		var me = this;
+		var model = me._model;
+		var start = me._start;
+		var view = me._view;
 
-		setHoverStyle: function(point) {
-			// Point
-			var dataset = this.chart.data.datasets[point._datasetIndex];
-			var custom = point.custom || {};
-			var index = point._index;
-			var model = point._model;
-
-			point.$previousStyle = {
-				backgroundColor: model.backgroundColor,
-				borderColor: model.borderColor,
-				borderWidth: model.borderWidth,
-				radius: model.radius
-			};
+		// No animation -> No Transition
+		if (!model || ease === 1) {
+			me._view = model;
+			me._start = null;
+			return me;
+		}
 
-			model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
-			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
-			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
-			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
-		},
-	});
-};
+		if (!view) {
+			view = me._view = {};
+		}
 
-},{"26":26,"41":41,"46":46}],21:[function(require,module,exports){
-'use strict';
+		if (!start) {
+			start = me._start = {};
+		}
 
-var defaults = require(26);
+		interpolate(start, view, model, ease);
 
-defaults._set('scatter', {
-	hover: {
-		mode: 'single'
+		return me;
 	},
 
-	scales: {
-		xAxes: [{
-			id: 'x-axis-1',    // need an ID so datasets can reference the scale
-			type: 'linear',    // scatter should not use a category axis
-			position: 'bottom'
-		}],
-		yAxes: [{
-			id: 'y-axis-1',
-			type: 'linear',
-			position: 'left'
-		}]
+	tooltipPosition: function() {
+		return {
+			x: this._model.x,
+			y: this._model.y
+		};
 	},
 
-	showLines: false,
-
-	tooltips: {
-		callbacks: {
-			title: function() {
-				return '';     // doesn't make sense for scatter since data are formatted as a point
-			},
-			label: function(item) {
-				return '(' + item.xLabel + ', ' + item.yLabel + ')';
-			}
-		}
+	hasValue: function() {
+		return helpers$1.isNumber(this._model.x) && helpers$1.isNumber(this._model.y);
 	}
 });
 
-module.exports = function(Chart) {
-
-	// Scatter charts use line controllers
-	Chart.controllers.scatter = Chart.controllers.line;
-
-};
-
-},{"26":26}],22:[function(require,module,exports){
-'use strict';
+Element.extend = helpers$1.inherits;
 
-var Element = require(27);
+var core_element = Element;
 
-var exports = module.exports = Element.extend({
+var exports$2 = core_element.extend({
 	chart: null, // the animation associated chart instance
 	currentStep: 0, // the current animation step
 	numSteps: 60, // default number of steps
@@ -3667,6 +2815,8 @@ var exports = module.exports = Element.extend({
 	onAnimationComplete: null, // user specified callback to fire when the animation finishes
 });
 
+var core_animation = exports$2;
+
 // DEPRECATIONS
 
 /**
@@ -3675,7 +2825,7 @@ var exports = module.exports = Element.extend({
  * @deprecated since version 2.6.0
  * @todo remove at version 3
  */
-Object.defineProperty(exports.prototype, 'animationObject', {
+Object.defineProperty(exports$2.prototype, 'animationObject', {
 	get: function() {
 		return this;
 	}
@@ -3687,7 +2837,7 @@ Object.defineProperty(exports.prototype, 'animationObject', {
  * @deprecated since version 2.6.0
  * @todo remove at version 3
  */
-Object.defineProperty(exports.prototype, 'chartInstance', {
+Object.defineProperty(exports$2.prototype, 'chartInstance', {
 	get: function() {
 		return this.chart;
 	},
@@ -3696,39 +2846,32 @@ Object.defineProperty(exports.prototype, 'chartInstance', {
 	}
 });
 
-},{"27":27}],23:[function(require,module,exports){
-/* global window: false */
-'use strict';
-
-var defaults = require(26);
-var helpers = require(46);
-
-defaults._set('global', {
+core_defaults._set('global', {
 	animation: {
 		duration: 1000,
 		easing: 'easeOutQuart',
-		onProgress: helpers.noop,
-		onComplete: helpers.noop
+		onProgress: helpers$1.noop,
+		onComplete: helpers$1.noop
 	}
 });
 
-module.exports = {
-	frameDuration: 17,
+var core_animations = {
 	animations: [],
-	dropFrames: 0,
 	request: null,
 
 	/**
 	 * @param {Chart} chart - The chart to animate.
 	 * @param {Chart.Animation} animation - The animation that we will animate.
-	 * @param {Number} duration - The animation duration in ms.
-	 * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
+	 * @param {number} duration - The animation duration in ms.
+	 * @param {boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
 	 */
 	addAnimation: function(chart, animation, duration, lazy) {
 		var animations = this.animations;
 		var i, ilen;
 
 		animation.chart = chart;
+		animation.startTime = Date.now();
+		animation.duration = duration;
 
 		if (!lazy) {
 			chart.animating = true;
@@ -3750,7 +2893,7 @@ module.exports = {
 	},
 
 	cancelAnimation: function(chart) {
-		var index = helpers.findIndex(this.animations, function(animation) {
+		var index = helpers$1.findIndex(this.animations, function(animation) {
 			return animation.chart === chart;
 		});
 
@@ -3766,7 +2909,7 @@ module.exports = {
 			// Skip animation frame requests until the active one is executed.
 			// This can happen when processing mouse events, e.g. 'mousemove'
 			// and 'mouseout' events will trigger multiple renders.
-			me.request = helpers.requestAnimFrame.call(window, function() {
+			me.request = helpers$1.requestAnimFrame.call(window, function() {
 				me.request = null;
 				me.startDigest();
 			});
@@ -3778,19 +2921,8 @@ module.exports = {
 	 */
 	startDigest: function() {
 		var me = this;
-		var startTime = Date.now();
-		var framesToDrop = 0;
 
-		if (me.dropFrames > 1) {
-			framesToDrop = Math.floor(me.dropFrames);
-			me.dropFrames = me.dropFrames % 1;
-		}
-
-		me.advance(1 + framesToDrop);
-
-		var endTime = Date.now();
-
-		me.dropFrames += (endTime - startTime) / me.frameDuration;
+		me.advance();
 
 		// Do we have more stuff to animate?
 		if (me.animations.length > 0) {
@@ -3801,23 +2933,27 @@ module.exports = {
 	/**
 	 * @private
 	 */
-	advance: function(count) {
+	advance: function() {
 		var animations = this.animations;
-		var animation, chart;
+		var animation, chart, numSteps, nextStep;
 		var i = 0;
 
+		// 1 animation per chart, so we are looping charts here
 		while (i < animations.length) {
 			animation = animations[i];
 			chart = animation.chart;
+			numSteps = animation.numSteps;
 
-			animation.currentStep = (animation.currentStep || 0) + count;
-			animation.currentStep = Math.min(animation.currentStep, animation.numSteps);
+			// Make sure that currentStep starts at 1
+			// https://github.com/chartjs/Chart.js/issues/6104
+			nextStep = Math.floor((Date.now() - animation.startTime) / animation.duration * numSteps) + 1;
+			animation.currentStep = Math.min(nextStep, numSteps);
 
-			helpers.callback(animation.render, [chart, animation], chart);
-			helpers.callback(animation.onAnimationProgress, [animation], chart);
+			helpers$1.callback(animation.render, [chart, animation], chart);
+			helpers$1.callback(animation.onAnimationProgress, [animation], chart);
 
-			if (animation.currentStep >= animation.numSteps) {
-				helpers.callback(animation.onAnimationComplete, [animation], chart);
+			if (animation.currentStep >= numSteps) {
+				helpers$1.callback(animation.onAnimationComplete, [animation], chart);
 				chart.animating = false;
 				animations.splice(i, 1);
 			} else {
@@ -3827,2076 +2963,2874 @@ module.exports = {
 	}
 };
 
-},{"26":26,"46":46}],24:[function(require,module,exports){
-'use strict';
+var resolve = helpers$1.options.resolve;
 
-var Animation = require(22);
-var animations = require(23);
-var defaults = require(26);
-var helpers = require(46);
-var Interaction = require(29);
-var layouts = require(31);
-var platform = require(49);
-var plugins = require(32);
-var scaleService = require(34);
-var Tooltip = require(36);
+var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];
 
-module.exports = function(Chart) {
+/**
+ * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
+ * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
+ * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
+ */
+function listenArrayEvents(array, listener) {
+	if (array._chartjs) {
+		array._chartjs.listeners.push(listener);
+		return;
+	}
 
-	// Create a dictionary of chart types, to allow for extension of existing types
-	Chart.types = {};
+	Object.defineProperty(array, '_chartjs', {
+		configurable: true,
+		enumerable: false,
+		value: {
+			listeners: [listener]
+		}
+	});
 
-	// Store a reference to each instance - allowing us to globally resize chart instances on window resize.
-	// Destroy method on the chart will remove the instance of the chart from this reference.
-	Chart.instances = {};
+	arrayEvents.forEach(function(key) {
+		var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
+		var base = array[key];
 
-	// Controllers available for dataset visualization eg. bar, line, slice, etc.
-	Chart.controllers = {};
+		Object.defineProperty(array, key, {
+			configurable: true,
+			enumerable: false,
+			value: function() {
+				var args = Array.prototype.slice.call(arguments);
+				var res = base.apply(this, args);
 
-	/**
-	 * Initializes the given config with global and chart default values.
-	 */
-	function initConfig(config) {
-		config = config || {};
+				helpers$1.each(array._chartjs.listeners, function(object) {
+					if (typeof object[method] === 'function') {
+						object[method].apply(object, args);
+					}
+				});
+
+				return res;
+			}
+		});
+	});
+}
 
-		// Do NOT use configMerge() for the data object because this method merges arrays
-		// and so would change references to labels and datasets, preventing data updates.
-		var data = config.data = config.data || {};
-		data.datasets = data.datasets || [];
-		data.labels = data.labels || [];
+/**
+ * Removes the given array event listener and cleanup extra attached properties (such as
+ * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
+ */
+function unlistenArrayEvents(array, listener) {
+	var stub = array._chartjs;
+	if (!stub) {
+		return;
+	}
 
-		config.options = helpers.configMerge(
-			defaults.global,
-			defaults[config.type],
-			config.options || {});
+	var listeners = stub.listeners;
+	var index = listeners.indexOf(listener);
+	if (index !== -1) {
+		listeners.splice(index, 1);
+	}
 
-		return config;
+	if (listeners.length > 0) {
+		return;
 	}
 
+	arrayEvents.forEach(function(key) {
+		delete array[key];
+	});
+
+	delete array._chartjs;
+}
+
+// Base class for all dataset controllers (line, bar, etc)
+var DatasetController = function(chart, datasetIndex) {
+	this.initialize(chart, datasetIndex);
+};
+
+helpers$1.extend(DatasetController.prototype, {
+
 	/**
-	 * Updates the config of the chart
-	 * @param chart {Chart} chart to update the options for
+	 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
+	 * @type {Chart.core.element}
 	 */
-	function updateConfig(chart) {
-		var newOptions = chart.options;
+	datasetElementType: null,
 
-		helpers.each(chart.scales, function(scale) {
-			layouts.removeBox(chart, scale);
-		});
+	/**
+	 * Element type used to generate a meta data (e.g. Chart.element.Point).
+	 * @type {Chart.core.element}
+	 */
+	dataElementType: null,
 
-		newOptions = helpers.configMerge(
-			Chart.defaults.global,
-			Chart.defaults[chart.config.type],
-			newOptions);
+	initialize: function(chart, datasetIndex) {
+		var me = this;
+		me.chart = chart;
+		me.index = datasetIndex;
+		me.linkScales();
+		me.addElements();
+	},
 
-		chart.options = chart.config.options = newOptions;
-		chart.ensureScalesHaveIDs();
-		chart.buildOrUpdateScales();
-		// Tooltip
-		chart.tooltip._options = newOptions.tooltips;
-		chart.tooltip.initialize();
-	}
+	updateIndex: function(datasetIndex) {
+		this.index = datasetIndex;
+	},
 
-	function positionIsHorizontal(position) {
-		return position === 'top' || position === 'bottom';
-	}
+	linkScales: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var dataset = me.getDataset();
 
-	helpers.extend(Chart.prototype, /** @lends Chart */ {
-		/**
-		 * @private
-		 */
-		construct: function(item, config) {
-			var me = this;
-
-			config = initConfig(config);
-
-			var context = platform.acquireContext(item, config);
-			var canvas = context && context.canvas;
-			var height = canvas && canvas.height;
-			var width = canvas && canvas.width;
-
-			me.id = helpers.uid();
-			me.ctx = context;
-			me.canvas = canvas;
-			me.config = config;
-			me.width = width;
-			me.height = height;
-			me.aspectRatio = height ? width / height : null;
-			me.options = config.options;
-			me._bufferedRender = false;
-
-			/**
-			 * Provided for backward compatibility, Chart and Chart.Controller have been merged,
-			 * the "instance" still need to be defined since it might be called from plugins.
-			 * @prop Chart#chart
-			 * @deprecated since version 2.6.0
-			 * @todo remove at version 3
-			 * @private
-			 */
-			me.chart = me;
-			me.controller = me; // chart.chart.controller #inception
-
-			// Add the chart instance to the global namespace
-			Chart.instances[me.id] = me;
-
-			// Define alias to the config data: `chart.data === chart.config.data`
-			Object.defineProperty(me, 'data', {
-				get: function() {
-					return me.config.data;
-				},
-				set: function(value) {
-					me.config.data = value;
-				}
-			});
+		if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
+			meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
+		}
+		if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
+			meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
+		}
+	},
 
-			if (!context || !canvas) {
-				// The given item is not a compatible context2d element, let's return before finalizing
-				// the chart initialization but after setting basic chart / controller properties that
-				// can help to figure out that the chart is not valid (e.g chart.canvas !== null);
-				// https://github.com/chartjs/Chart.js/issues/2807
-				console.error("Failed to create chart: can't acquire context from the given item");
-				return;
-			}
+	getDataset: function() {
+		return this.chart.data.datasets[this.index];
+	},
 
-			me.initialize();
-			me.update();
-		},
+	getMeta: function() {
+		return this.chart.getDatasetMeta(this.index);
+	},
 
-		/**
-		 * @private
-		 */
-		initialize: function() {
-			var me = this;
+	getScaleForId: function(scaleID) {
+		return this.chart.scales[scaleID];
+	},
 
-			// Before init plugin notification
-			plugins.notify(me, 'beforeInit');
+	/**
+	 * @private
+	 */
+	_getValueScaleId: function() {
+		return this.getMeta().yAxisID;
+	},
 
-			helpers.retinaScale(me, me.options.devicePixelRatio);
+	/**
+	 * @private
+	 */
+	_getIndexScaleId: function() {
+		return this.getMeta().xAxisID;
+	},
 
-			me.bindEvents();
+	/**
+	 * @private
+	 */
+	_getValueScale: function() {
+		return this.getScaleForId(this._getValueScaleId());
+	},
 
-			if (me.options.responsive) {
-				// Initial resize before chart draws (must be silent to preserve initial animations).
-				me.resize(true);
-			}
+	/**
+	 * @private
+	 */
+	_getIndexScale: function() {
+		return this.getScaleForId(this._getIndexScaleId());
+	},
 
-			// Make sure scales have IDs and are built before we build any controllers.
-			me.ensureScalesHaveIDs();
-			me.buildOrUpdateScales();
-			me.initToolTip();
+	reset: function() {
+		this.update(true);
+	},
 
-			// After init plugin notification
-			plugins.notify(me, 'afterInit');
+	/**
+	 * @private
+	 */
+	destroy: function() {
+		if (this._data) {
+			unlistenArrayEvents(this._data, this);
+		}
+	},
 
-			return me;
-		},
+	createMetaDataset: function() {
+		var me = this;
+		var type = me.datasetElementType;
+		return type && new type({
+			_chart: me.chart,
+			_datasetIndex: me.index
+		});
+	},
 
-		clear: function() {
-			helpers.canvas.clear(this);
-			return this;
-		},
+	createMetaData: function(index) {
+		var me = this;
+		var type = me.dataElementType;
+		return type && new type({
+			_chart: me.chart,
+			_datasetIndex: me.index,
+			_index: index
+		});
+	},
 
-		stop: function() {
-			// Stops any current animation loop occurring
-			animations.cancelAnimation(this);
-			return this;
-		},
+	addElements: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var data = me.getDataset().data || [];
+		var metaData = meta.data;
+		var i, ilen;
 
-		resize: function(silent) {
-			var me = this;
-			var options = me.options;
-			var canvas = me.canvas;
-			var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;
+		for (i = 0, ilen = data.length; i < ilen; ++i) {
+			metaData[i] = metaData[i] || me.createMetaData(i);
+		}
 
-			// the canvas render width and height will be casted to integers so make sure that
-			// the canvas display style uses the same integer values to avoid blurring effect.
+		meta.dataset = meta.dataset || me.createMetaDataset();
+	},
 
-			// Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collapsed
-			var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas)));
-			var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas)));
+	addElementAndReset: function(index) {
+		var element = this.createMetaData(index);
+		this.getMeta().data.splice(index, 0, element);
+		this.updateElement(element, index, true);
+	},
 
-			if (me.width === newWidth && me.height === newHeight) {
-				return;
+	buildOrUpdateElements: function() {
+		var me = this;
+		var dataset = me.getDataset();
+		var data = dataset.data || (dataset.data = []);
+
+		// In order to correctly handle data addition/deletion animation (an thus simulate
+		// real-time charts), we need to monitor these data modifications and synchronize
+		// the internal meta data accordingly.
+		if (me._data !== data) {
+			if (me._data) {
+				// This case happens when the user replaced the data array instance.
+				unlistenArrayEvents(me._data, me);
 			}
 
-			canvas.width = me.width = newWidth;
-			canvas.height = me.height = newHeight;
-			canvas.style.width = newWidth + 'px';
-			canvas.style.height = newHeight + 'px';
+			if (data && Object.isExtensible(data)) {
+				listenArrayEvents(data, me);
+			}
+			me._data = data;
+		}
 
-			helpers.retinaScale(me, options.devicePixelRatio);
+		// Re-sync meta data in case the user replaced the data array or if we missed
+		// any updates and so make sure that we handle number of datapoints changing.
+		me.resyncElements();
+	},
 
-			if (!silent) {
-				// Notify any plugins about the resize
-				var newSize = {width: newWidth, height: newHeight};
-				plugins.notify(me, 'resize', [newSize]);
+	update: helpers$1.noop,
 
-				// Notify of resize
-				if (me.options.onResize) {
-					me.options.onResize(me, newSize);
-				}
+	transition: function(easingValue) {
+		var meta = this.getMeta();
+		var elements = meta.data || [];
+		var ilen = elements.length;
+		var i = 0;
 
-				me.stop();
-				me.update({
-					duration: me.options.responsiveAnimationDuration
-				});
-			}
-		},
+		for (; i < ilen; ++i) {
+			elements[i].transition(easingValue);
+		}
 
-		ensureScalesHaveIDs: function() {
-			var options = this.options;
-			var scalesOptions = options.scales || {};
-			var scaleOptions = options.scale;
+		if (meta.dataset) {
+			meta.dataset.transition(easingValue);
+		}
+	},
 
-			helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) {
-				xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
-			});
+	draw: function() {
+		var meta = this.getMeta();
+		var elements = meta.data || [];
+		var ilen = elements.length;
+		var i = 0;
 
-			helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) {
-				yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
-			});
+		if (meta.dataset) {
+			meta.dataset.draw();
+		}
 
-			if (scaleOptions) {
-				scaleOptions.id = scaleOptions.id || 'scale';
-			}
-		},
+		for (; i < ilen; ++i) {
+			elements[i].draw();
+		}
+	},
 
-		/**
-		 * Builds a map of scale ID to scale object for future lookup.
-		 */
-		buildOrUpdateScales: function() {
-			var me = this;
-			var options = me.options;
-			var scales = me.scales || {};
-			var items = [];
-			var updated = Object.keys(scales).reduce(function(obj, id) {
-				obj[id] = false;
-				return obj;
-			}, {});
-
-			if (options.scales) {
-				items = items.concat(
-					(options.scales.xAxes || []).map(function(xAxisOptions) {
-						return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
-					}),
-					(options.scales.yAxes || []).map(function(yAxisOptions) {
-						return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
-					})
-				);
-			}
+	removeHoverStyle: function(element) {
+		helpers$1.merge(element._model, element.$previousStyle || {});
+		delete element.$previousStyle;
+	},
 
-			if (options.scale) {
-				items.push({
-					options: options.scale,
-					dtype: 'radialLinear',
-					isDefault: true,
-					dposition: 'chartArea'
-				});
-			}
+	setHoverStyle: function(element) {
+		var dataset = this.chart.data.datasets[element._datasetIndex];
+		var index = element._index;
+		var custom = element.custom || {};
+		var model = element._model;
+		var getHoverColor = helpers$1.getHoverColor;
 
-			helpers.each(items, function(item) {
-				var scaleOptions = item.options;
-				var id = scaleOptions.id;
-				var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype);
+		element.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth
+		};
 
-				if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
-					scaleOptions.position = item.dposition;
-				}
+		model.backgroundColor = resolve([custom.hoverBackgroundColor, dataset.hoverBackgroundColor, getHoverColor(model.backgroundColor)], undefined, index);
+		model.borderColor = resolve([custom.hoverBorderColor, dataset.hoverBorderColor, getHoverColor(model.borderColor)], undefined, index);
+		model.borderWidth = resolve([custom.hoverBorderWidth, dataset.hoverBorderWidth, model.borderWidth], undefined, index);
+	},
 
-				updated[id] = true;
-				var scale = null;
-				if (id in scales && scales[id].type === scaleType) {
-					scale = scales[id];
-					scale.options = scaleOptions;
-					scale.ctx = me.ctx;
-					scale.chart = me;
-				} else {
-					var scaleClass = scaleService.getScaleConstructor(scaleType);
-					if (!scaleClass) {
-						return;
-					}
-					scale = new scaleClass({
-						id: id,
-						type: scaleType,
-						options: scaleOptions,
-						ctx: me.ctx,
-						chart: me
-					});
-					scales[scale.id] = scale;
-				}
+	/**
+	 * @private
+	 */
+	resyncElements: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var data = me.getDataset().data;
+		var numMeta = meta.data.length;
+		var numData = data.length;
 
-				scale.mergeTicksOptions();
+		if (numData < numMeta) {
+			meta.data.splice(numData, numMeta - numData);
+		} else if (numData > numMeta) {
+			me.insertElements(numMeta, numData - numMeta);
+		}
+	},
 
-				// TODO(SB): I think we should be able to remove this custom case (options.scale)
-				// and consider it as a regular scale part of the "scales"" map only! This would
-				// make the logic easier and remove some useless? custom code.
-				if (item.isDefault) {
-					me.scale = scale;
-				}
-			});
-			// clear up discarded scales
-			helpers.each(updated, function(hasUpdated, id) {
-				if (!hasUpdated) {
-					delete scales[id];
-				}
-			});
+	/**
+	 * @private
+	 */
+	insertElements: function(start, count) {
+		for (var i = 0; i < count; ++i) {
+			this.addElementAndReset(start + i);
+		}
+	},
 
-			me.scales = scales;
+	/**
+	 * @private
+	 */
+	onDataPush: function() {
+		var count = arguments.length;
+		this.insertElements(this.getDataset().data.length - count, count);
+	},
 
-			scaleService.addScalesToLayout(this);
-		},
+	/**
+	 * @private
+	 */
+	onDataPop: function() {
+		this.getMeta().data.pop();
+	},
 
-		buildOrUpdateControllers: function() {
-			var me = this;
-			var types = [];
-			var newControllers = [];
+	/**
+	 * @private
+	 */
+	onDataShift: function() {
+		this.getMeta().data.shift();
+	},
 
-			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
-				var meta = me.getDatasetMeta(datasetIndex);
-				var type = dataset.type || me.config.type;
+	/**
+	 * @private
+	 */
+	onDataSplice: function(start, count) {
+		this.getMeta().data.splice(start, count);
+		this.insertElements(start, arguments.length - 2);
+	},
 
-				if (meta.type && meta.type !== type) {
-					me.destroyDatasetMeta(datasetIndex);
-					meta = me.getDatasetMeta(datasetIndex);
-				}
-				meta.type = type;
+	/**
+	 * @private
+	 */
+	onDataUnshift: function() {
+		this.insertElements(0, arguments.length);
+	}
+});
 
-				types.push(meta.type);
+DatasetController.extend = helpers$1.inherits;
 
-				if (meta.controller) {
-					meta.controller.updateIndex(datasetIndex);
-					meta.controller.linkScales();
-				} else {
-					var ControllerClass = Chart.controllers[meta.type];
-					if (ControllerClass === undefined) {
-						throw new Error('"' + meta.type + '" is not a chart type.');
-					}
+var core_datasetController = DatasetController;
 
-					meta.controller = new ControllerClass(me, datasetIndex);
-					newControllers.push(meta.controller);
-				}
-			}, me);
+core_defaults._set('global', {
+	elements: {
+		arc: {
+			backgroundColor: core_defaults.global.defaultColor,
+			borderColor: '#fff',
+			borderWidth: 2,
+			borderAlign: 'center'
+		}
+	}
+});
 
-			return newControllers;
-		},
+var element_arc = core_element.extend({
+	inLabelRange: function(mouseX) {
+		var vm = this._view;
 
-		/**
-		 * Reset the elements of all datasets
-		 * @private
-		 */
-		resetElements: function() {
-			var me = this;
-			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
-				me.getDatasetMeta(datasetIndex).controller.reset();
-			}, me);
-		},
+		if (vm) {
+			return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
+		}
+		return false;
+	},
 
-		/**
-		* Resets the chart back to it's state before the initial animation
-		*/
-		reset: function() {
-			this.resetElements();
-			this.tooltip.initialize();
-		},
+	inRange: function(chartX, chartY) {
+		var vm = this._view;
 
-		update: function(config) {
-			var me = this;
+		if (vm) {
+			var pointRelativePosition = helpers$1.getAngleFromPoint(vm, {x: chartX, y: chartY});
+			var	angle = pointRelativePosition.angle;
+			var distance = pointRelativePosition.distance;
 
-			if (!config || typeof config !== 'object') {
-				// backwards compatibility
-				config = {
-					duration: config,
-					lazy: arguments[1]
-				};
+			// Sanitise angle range
+			var startAngle = vm.startAngle;
+			var endAngle = vm.endAngle;
+			while (endAngle < startAngle) {
+				endAngle += 2.0 * Math.PI;
+			}
+			while (angle > endAngle) {
+				angle -= 2.0 * Math.PI;
+			}
+			while (angle < startAngle) {
+				angle += 2.0 * Math.PI;
 			}
 
-			updateConfig(me);
+			// Check if within the range of the open/close angle
+			var betweenAngles = (angle >= startAngle && angle <= endAngle);
+			var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
 
-			// plugins options references might have change, let's invalidate the cache
-			// https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
-			plugins._invalidate(me);
+			return (betweenAngles && withinRadius);
+		}
+		return false;
+	},
 
-			if (plugins.notify(me, 'beforeUpdate') === false) {
-				return;
-			}
+	getCenterPoint: function() {
+		var vm = this._view;
+		var halfAngle = (vm.startAngle + vm.endAngle) / 2;
+		var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
+		return {
+			x: vm.x + Math.cos(halfAngle) * halfRadius,
+			y: vm.y + Math.sin(halfAngle) * halfRadius
+		};
+	},
 
-			// In case the entire data object changed
-			me.tooltip._data = me.data;
+	getArea: function() {
+		var vm = this._view;
+		return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
+	},
 
-			// Make sure dataset controllers are updated and new controllers are reset
-			var newControllers = me.buildOrUpdateControllers();
+	tooltipPosition: function() {
+		var vm = this._view;
+		var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
+		var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
 
-			// Make sure all dataset controllers have correct meta data counts
-			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
-				me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
-			}, me);
+		return {
+			x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
+			y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
+		};
+	},
 
-			me.updateLayout();
+	draw: function() {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+		var sA = vm.startAngle;
+		var eA = vm.endAngle;
+		var pixelMargin = (vm.borderAlign === 'inner') ? 0.33 : 0;
+		var angleMargin;
 
-			// Can only reset the new controllers after the scales have been updated
-			if (me.options.animation && me.options.animation.duration) {
-				helpers.each(newControllers, function(controller) {
-					controller.reset();
-				});
-			}
+		ctx.save();
 
-			me.updateDatasets();
+		ctx.beginPath();
+		ctx.arc(vm.x, vm.y, Math.max(vm.outerRadius - pixelMargin, 0), sA, eA);
+		ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
+		ctx.closePath();
 
-			// Need to reset tooltip in case it is displayed with elements that are removed
-			// after update.
-			me.tooltip.initialize();
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.fill();
 
-			// Last active contains items that were previously in the tooltip.
-			// When we reset the tooltip, we need to clear it
-			me.lastActive = [];
+		if (vm.borderWidth) {
+			if (vm.borderAlign === 'inner') {
+				// Draw an inner border by cliping the arc and drawing a double-width border
+				// Enlarge the clipping arc by 0.33 pixels to eliminate glitches between borders
+				ctx.beginPath();
+				angleMargin = pixelMargin / vm.outerRadius;
+				ctx.arc(vm.x, vm.y, vm.outerRadius, sA - angleMargin, eA + angleMargin);
+				if (vm.innerRadius > pixelMargin) {
+					angleMargin = pixelMargin / vm.innerRadius;
+					ctx.arc(vm.x, vm.y, vm.innerRadius - pixelMargin, eA + angleMargin, sA - angleMargin, true);
+				} else {
+					ctx.arc(vm.x, vm.y, pixelMargin, eA + Math.PI / 2, sA - Math.PI / 2);
+				}
+				ctx.closePath();
+				ctx.clip();
 
-			// Do this before render so that any plugins that need final scale updates can use it
-			plugins.notify(me, 'afterUpdate');
+				ctx.beginPath();
+				ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
+				ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
+				ctx.closePath();
 
-			if (me._bufferedRender) {
-				me._bufferedRequest = {
-					duration: config.duration,
-					easing: config.easing,
-					lazy: config.lazy
-				};
+				ctx.lineWidth = vm.borderWidth * 2;
+				ctx.lineJoin = 'round';
 			} else {
-				me.render(config);
+				ctx.lineWidth = vm.borderWidth;
+				ctx.lineJoin = 'bevel';
 			}
-		},
 
-		/**
-		 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
-		 * hook, in which case, plugins will not be called on `afterLayout`.
-		 * @private
-		 */
-		updateLayout: function() {
-			var me = this;
+			ctx.strokeStyle = vm.borderColor;
+			ctx.stroke();
+		}
 
-			if (plugins.notify(me, 'beforeLayout') === false) {
-				return;
-			}
+		ctx.restore();
+	}
+});
 
-			layouts.update(this, this.width, this.height);
+var valueOrDefault$1 = helpers$1.valueOrDefault;
 
-			/**
-			 * Provided for backward compatibility, use `afterLayout` instead.
-			 * @method IPlugin#afterScaleUpdate
-			 * @deprecated since version 2.5.0
-			 * @todo remove at version 3
-			 * @private
-			 */
-			plugins.notify(me, 'afterScaleUpdate');
-			plugins.notify(me, 'afterLayout');
-		},
+var defaultColor = core_defaults.global.defaultColor;
 
-		/**
-		 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
-		 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
-		 * @private
-		 */
-		updateDatasets: function() {
-			var me = this;
+core_defaults._set('global', {
+	elements: {
+		line: {
+			tension: 0.4,
+			backgroundColor: defaultColor,
+			borderWidth: 3,
+			borderColor: defaultColor,
+			borderCapStyle: 'butt',
+			borderDash: [],
+			borderDashOffset: 0.0,
+			borderJoinStyle: 'miter',
+			capBezierPoints: true,
+			fill: true, // do we fill in the area between the line and its base axis
+		}
+	}
+});
 
-			if (plugins.notify(me, 'beforeDatasetsUpdate') === false) {
-				return;
-			}
+var element_line = core_element.extend({
+	draw: function() {
+		var me = this;
+		var vm = me._view;
+		var ctx = me._chart.ctx;
+		var spanGaps = vm.spanGaps;
+		var points = me._children.slice(); // clone array
+		var globalDefaults = core_defaults.global;
+		var globalOptionLineElements = globalDefaults.elements.line;
+		var lastDrawnIndex = -1;
+		var index, current, previous, currentVM;
 
-			for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
-				me.updateDataset(i);
-			}
+		// If we are looping, adding the first point again
+		if (me._loop && points.length) {
+			points.push(points[0]);
+		}
 
-			plugins.notify(me, 'afterDatasetsUpdate');
-		},
+		ctx.save();
 
-		/**
-		 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
-		 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
-		 * @private
-		 */
-		updateDataset: function(index) {
-			var me = this;
-			var meta = me.getDatasetMeta(index);
-			var args = {
-				meta: meta,
-				index: index
-			};
+		// Stroke Line Options
+		ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
 
-			if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
-				return;
-			}
+		// IE 9 and 10 do not support line dash
+		if (ctx.setLineDash) {
+			ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
+		}
 
-			meta.controller.update();
+		ctx.lineDashOffset = valueOrDefault$1(vm.borderDashOffset, globalOptionLineElements.borderDashOffset);
+		ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
+		ctx.lineWidth = valueOrDefault$1(vm.borderWidth, globalOptionLineElements.borderWidth);
+		ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
 
-			plugins.notify(me, 'afterDatasetUpdate', [args]);
-		},
+		// Stroke Line
+		ctx.beginPath();
+		lastDrawnIndex = -1;
 
-		render: function(config) {
-			var me = this;
+		for (index = 0; index < points.length; ++index) {
+			current = points[index];
+			previous = helpers$1.previousItem(points, index);
+			currentVM = current._view;
 
-			if (!config || typeof config !== 'object') {
-				// backwards compatibility
-				config = {
-					duration: config,
-					lazy: arguments[1]
-				};
+			// First point moves to it's starting position no matter what
+			if (index === 0) {
+				if (!currentVM.skip) {
+					ctx.moveTo(currentVM.x, currentVM.y);
+					lastDrawnIndex = index;
+				}
+			} else {
+				previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
+
+				if (!currentVM.skip) {
+					if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
+						// There was a gap and this is the first point after the gap
+						ctx.moveTo(currentVM.x, currentVM.y);
+					} else {
+						// Line to next point
+						helpers$1.canvas.lineTo(ctx, previous._view, current._view);
+					}
+					lastDrawnIndex = index;
+				}
 			}
+		}
 
-			var duration = config.duration;
-			var lazy = config.lazy;
+		ctx.stroke();
+		ctx.restore();
+	}
+});
 
-			if (plugins.notify(me, 'beforeRender') === false) {
-				return;
-			}
+var valueOrDefault$2 = helpers$1.valueOrDefault;
 
-			var animationOptions = me.options.animation;
-			var onComplete = function(animation) {
-				plugins.notify(me, 'afterRender');
-				helpers.callback(animationOptions && animationOptions.onComplete, [animation], me);
-			};
+var defaultColor$1 = core_defaults.global.defaultColor;
 
-			if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
-				var animation = new Animation({
-					numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps
-					easing: config.easing || animationOptions.easing,
+core_defaults._set('global', {
+	elements: {
+		point: {
+			radius: 3,
+			pointStyle: 'circle',
+			backgroundColor: defaultColor$1,
+			borderColor: defaultColor$1,
+			borderWidth: 1,
+			// Hover
+			hitRadius: 1,
+			hoverRadius: 4,
+			hoverBorderWidth: 1
+		}
+	}
+});
 
-					render: function(chart, animationObject) {
-						var easingFunction = helpers.easing.effects[animationObject.easing];
-						var currentStep = animationObject.currentStep;
-						var stepDecimal = currentStep / animationObject.numSteps;
+function xRange(mouseX) {
+	var vm = this._view;
+	return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
+}
 
-						chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
-					},
+function yRange(mouseY) {
+	var vm = this._view;
+	return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
+}
 
-					onAnimationProgress: animationOptions.onProgress,
-					onAnimationComplete: onComplete
-				});
+var element_point = core_element.extend({
+	inRange: function(mouseX, mouseY) {
+		var vm = this._view;
+		return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
+	},
 
-				animations.addAnimation(me, animation, duration, lazy);
-			} else {
-				me.draw();
+	inLabelRange: xRange,
+	inXRange: xRange,
+	inYRange: yRange,
 
-				// See https://github.com/chartjs/Chart.js/issues/3781
-				onComplete(new Animation({numSteps: 0, chart: me}));
-			}
+	getCenterPoint: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y
+		};
+	},
 
-			return me;
-		},
+	getArea: function() {
+		return Math.PI * Math.pow(this._view.radius, 2);
+	},
 
-		draw: function(easingValue) {
-			var me = this;
+	tooltipPosition: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y,
+			padding: vm.radius + vm.borderWidth
+		};
+	},
 
-			me.clear();
+	draw: function(chartArea) {
+		var vm = this._view;
+		var ctx = this._chart.ctx;
+		var pointStyle = vm.pointStyle;
+		var rotation = vm.rotation;
+		var radius = vm.radius;
+		var x = vm.x;
+		var y = vm.y;
+		var globalDefaults = core_defaults.global;
+		var defaultColor = globalDefaults.defaultColor; // eslint-disable-line no-shadow
 
-			if (helpers.isNullOrUndef(easingValue)) {
-				easingValue = 1;
-			}
+		if (vm.skip) {
+			return;
+		}
 
-			me.transition(easingValue);
+		// Clipping for Points.
+		if (chartArea === undefined || helpers$1.canvas._isPointInArea(vm, chartArea)) {
+			ctx.strokeStyle = vm.borderColor || defaultColor;
+			ctx.lineWidth = valueOrDefault$2(vm.borderWidth, globalDefaults.elements.point.borderWidth);
+			ctx.fillStyle = vm.backgroundColor || defaultColor;
+			helpers$1.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);
+		}
+	}
+});
 
-			if (me.width <= 0 || me.height <= 0) {
-				return;
-			}
+var defaultColor$2 = core_defaults.global.defaultColor;
 
-			if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
-				return;
-			}
+core_defaults._set('global', {
+	elements: {
+		rectangle: {
+			backgroundColor: defaultColor$2,
+			borderColor: defaultColor$2,
+			borderSkipped: 'bottom',
+			borderWidth: 0
+		}
+	}
+});
 
-			// Draw all the scales
-			helpers.each(me.boxes, function(box) {
-				box.draw(me.chartArea);
-			}, me);
+function isVertical(vm) {
+	return vm && vm.width !== undefined;
+}
 
-			if (me.scale) {
-				me.scale.draw();
-			}
+/**
+ * Helper function to get the bounds of the bar regardless of the orientation
+ * @param bar {Chart.Element.Rectangle} the bar
+ * @return {Bounds} bounds of the bar
+ * @private
+ */
+function getBarBounds(vm) {
+	var x1, x2, y1, y2, half;
 
-			me.drawDatasets(easingValue);
-			me._drawTooltip(easingValue);
+	if (isVertical(vm)) {
+		half = vm.width / 2;
+		x1 = vm.x - half;
+		x2 = vm.x + half;
+		y1 = Math.min(vm.y, vm.base);
+		y2 = Math.max(vm.y, vm.base);
+	} else {
+		half = vm.height / 2;
+		x1 = Math.min(vm.x, vm.base);
+		x2 = Math.max(vm.x, vm.base);
+		y1 = vm.y - half;
+		y2 = vm.y + half;
+	}
 
-			plugins.notify(me, 'afterDraw', [easingValue]);
-		},
+	return {
+		left: x1,
+		top: y1,
+		right: x2,
+		bottom: y2
+	};
+}
 
-		/**
-		 * @private
-		 */
-		transition: function(easingValue) {
-			var me = this;
+function swap(orig, v1, v2) {
+	return orig === v1 ? v2 : orig === v2 ? v1 : orig;
+}
 
-			for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
-				if (me.isDatasetVisible(i)) {
-					me.getDatasetMeta(i).controller.transition(easingValue);
-				}
-			}
+function parseBorderSkipped(vm) {
+	var edge = vm.borderSkipped;
+	var res = {};
 
-			me.tooltip.transition(easingValue);
-		},
+	if (!edge) {
+		return res;
+	}
 
-		/**
-		 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
-		 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
-		 * @private
-		 */
-		drawDatasets: function(easingValue) {
-			var me = this;
+	if (vm.horizontal) {
+		if (vm.base > vm.x) {
+			edge = swap(edge, 'left', 'right');
+		}
+	} else if (vm.base < vm.y) {
+		edge = swap(edge, 'bottom', 'top');
+	}
 
-			if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
-				return;
-			}
+	res[edge] = true;
+	return res;
+}
 
-			// Draw datasets reversed to support proper line stacking
-			for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
-				if (me.isDatasetVisible(i)) {
-					me.drawDataset(i, easingValue);
-				}
-			}
+function parseBorderWidth(vm, maxW, maxH) {
+	var value = vm.borderWidth;
+	var skip = parseBorderSkipped(vm);
+	var t, r, b, l;
 
-			plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
-		},
+	if (helpers$1.isObject(value)) {
+		t = +value.top || 0;
+		r = +value.right || 0;
+		b = +value.bottom || 0;
+		l = +value.left || 0;
+	} else {
+		t = r = b = l = +value || 0;
+	}
 
-		/**
-		 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
-		 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
-		 * @private
-		 */
-		drawDataset: function(index, easingValue) {
-			var me = this;
-			var meta = me.getDatasetMeta(index);
-			var args = {
-				meta: meta,
-				index: index,
-				easingValue: easingValue
-			};
+	return {
+		t: skip.top || (t < 0) ? 0 : t > maxH ? maxH : t,
+		r: skip.right || (r < 0) ? 0 : r > maxW ? maxW : r,
+		b: skip.bottom || (b < 0) ? 0 : b > maxH ? maxH : b,
+		l: skip.left || (l < 0) ? 0 : l > maxW ? maxW : l
+	};
+}
 
-			if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
-				return;
-			}
+function boundingRects(vm) {
+	var bounds = getBarBounds(vm);
+	var width = bounds.right - bounds.left;
+	var height = bounds.bottom - bounds.top;
+	var border = parseBorderWidth(vm, width / 2, height / 2);
 
-			meta.controller.draw(easingValue);
+	return {
+		outer: {
+			x: bounds.left,
+			y: bounds.top,
+			w: width,
+			h: height
+		},
+		inner: {
+			x: bounds.left + border.l,
+			y: bounds.top + border.t,
+			w: width - border.l - border.r,
+			h: height - border.t - border.b
+		}
+	};
+}
 
-			plugins.notify(me, 'afterDatasetDraw', [args]);
-		},
+function inRange(vm, x, y) {
+	var skipX = x === null;
+	var skipY = y === null;
+	var bounds = !vm || (skipX && skipY) ? false : getBarBounds(vm);
 
-		/**
-		 * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
-		 * hook, in which case, plugins will not be called on `afterTooltipDraw`.
-		 * @private
-		 */
-		_drawTooltip: function(easingValue) {
-			var me = this;
-			var tooltip = me.tooltip;
-			var args = {
-				tooltip: tooltip,
-				easingValue: easingValue
-			};
+	return bounds
+		&& (skipX || x >= bounds.left && x <= bounds.right)
+		&& (skipY || y >= bounds.top && y <= bounds.bottom);
+}
 
-			if (plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
-				return;
-			}
+var element_rectangle = core_element.extend({
+	draw: function() {
+		var ctx = this._chart.ctx;
+		var vm = this._view;
+		var rects = boundingRects(vm);
+		var outer = rects.outer;
+		var inner = rects.inner;
 
-			tooltip.draw();
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.fillRect(outer.x, outer.y, outer.w, outer.h);
 
-			plugins.notify(me, 'afterTooltipDraw', [args]);
-		},
+		if (outer.w === inner.w && outer.h === inner.h) {
+			return;
+		}
 
-		// Get the single element that was clicked on
-		// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
-		getElementAtEvent: function(e) {
-			return Interaction.modes.single(this, e);
-		},
+		ctx.save();
+		ctx.beginPath();
+		ctx.rect(outer.x, outer.y, outer.w, outer.h);
+		ctx.clip();
+		ctx.fillStyle = vm.borderColor;
+		ctx.rect(inner.x, inner.y, inner.w, inner.h);
+		ctx.fill('evenodd');
+		ctx.restore();
+	},
 
-		getElementsAtEvent: function(e) {
-			return Interaction.modes.label(this, e, {intersect: true});
-		},
+	height: function() {
+		var vm = this._view;
+		return vm.base - vm.y;
+	},
 
-		getElementsAtXAxis: function(e) {
-			return Interaction.modes['x-axis'](this, e, {intersect: true});
-		},
+	inRange: function(mouseX, mouseY) {
+		return inRange(this._view, mouseX, mouseY);
+	},
 
-		getElementsAtEventForMode: function(e, mode, options) {
-			var method = Interaction.modes[mode];
-			if (typeof method === 'function') {
-				return method(this, e, options);
-			}
+	inLabelRange: function(mouseX, mouseY) {
+		var vm = this._view;
+		return isVertical(vm)
+			? inRange(vm, mouseX, null)
+			: inRange(vm, null, mouseY);
+	},
 
-			return [];
-		},
+	inXRange: function(mouseX) {
+		return inRange(this._view, mouseX, null);
+	},
 
-		getDatasetAtEvent: function(e) {
-			return Interaction.modes.dataset(this, e, {intersect: true});
-		},
+	inYRange: function(mouseY) {
+		return inRange(this._view, null, mouseY);
+	},
 
-		getDatasetMeta: function(datasetIndex) {
-			var me = this;
-			var dataset = me.data.datasets[datasetIndex];
-			if (!dataset._meta) {
-				dataset._meta = {};
-			}
-
-			var meta = dataset._meta[me.id];
-			if (!meta) {
-				meta = dataset._meta[me.id] = {
-					type: null,
-					data: [],
-					dataset: null,
-					controller: null,
-					hidden: null,			// See isDatasetVisible() comment
-					xAxisID: null,
-					yAxisID: null
-				};
-			}
+	getCenterPoint: function() {
+		var vm = this._view;
+		var x, y;
+		if (isVertical(vm)) {
+			x = vm.x;
+			y = (vm.y + vm.base) / 2;
+		} else {
+			x = (vm.x + vm.base) / 2;
+			y = vm.y;
+		}
 
-			return meta;
-		},
+		return {x: x, y: y};
+	},
 
-		getVisibleDatasetCount: function() {
-			var count = 0;
-			for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
-				if (this.isDatasetVisible(i)) {
-					count++;
-				}
-			}
-			return count;
-		},
+	getArea: function() {
+		var vm = this._view;
 
-		isDatasetVisible: function(datasetIndex) {
-			var meta = this.getDatasetMeta(datasetIndex);
+		return isVertical(vm)
+			? vm.width * Math.abs(vm.y - vm.base)
+			: vm.height * Math.abs(vm.x - vm.base);
+	},
 
-			// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
-			// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
-			return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
-		},
+	tooltipPosition: function() {
+		var vm = this._view;
+		return {
+			x: vm.x,
+			y: vm.y
+		};
+	}
+});
 
-		generateLegend: function() {
-			return this.options.legendCallback(this);
-		},
+var elements = {};
+var Arc = element_arc;
+var Line = element_line;
+var Point = element_point;
+var Rectangle = element_rectangle;
+elements.Arc = Arc;
+elements.Line = Line;
+elements.Point = Point;
+elements.Rectangle = Rectangle;
 
-		/**
-		 * @private
-		 */
-		destroyDatasetMeta: function(datasetIndex) {
-			var id = this.id;
-			var dataset = this.data.datasets[datasetIndex];
-			var meta = dataset._meta && dataset._meta[id];
+var resolve$1 = helpers$1.options.resolve;
+
+core_defaults._set('bar', {
+	hover: {
+		mode: 'label'
+	},
 
-			if (meta) {
-				meta.controller.destroy();
-				delete dataset._meta[id];
+	scales: {
+		xAxes: [{
+			type: 'category',
+			categoryPercentage: 0.8,
+			barPercentage: 0.9,
+			offset: true,
+			gridLines: {
+				offsetGridLines: true
 			}
-		},
+		}],
 
-		destroy: function() {
-			var me = this;
-			var canvas = me.canvas;
-			var i, ilen;
+		yAxes: [{
+			type: 'linear'
+		}]
+	}
+});
 
-			me.stop();
+/**
+ * Computes the "optimal" sample size to maintain bars equally sized while preventing overlap.
+ * @private
+ */
+function computeMinSampleSize(scale, pixels) {
+	var min = scale.isHorizontal() ? scale.width : scale.height;
+	var ticks = scale.getTicks();
+	var prev, curr, i, ilen;
 
-			// dataset controllers need to cleanup associated data
-			for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
-				me.destroyDatasetMeta(i);
-			}
+	for (i = 1, ilen = pixels.length; i < ilen; ++i) {
+		min = Math.min(min, Math.abs(pixels[i] - pixels[i - 1]));
+	}
 
-			if (canvas) {
-				me.unbindEvents();
-				helpers.canvas.clear(me);
-				platform.releaseContext(me.ctx);
-				me.canvas = null;
-				me.ctx = null;
-			}
+	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+		curr = scale.getPixelForTick(i);
+		min = i > 0 ? Math.min(min, curr - prev) : min;
+		prev = curr;
+	}
 
-			plugins.notify(me, 'destroy');
+	return min;
+}
 
-			delete Chart.instances[me.id];
-		},
+/**
+ * Computes an "ideal" category based on the absolute bar thickness or, if undefined or null,
+ * uses the smallest interval (see computeMinSampleSize) that prevents bar overlapping. This
+ * mode currently always generates bars equally sized (until we introduce scriptable options?).
+ * @private
+ */
+function computeFitCategoryTraits(index, ruler, options) {
+	var thickness = options.barThickness;
+	var count = ruler.stackCount;
+	var curr = ruler.pixels[index];
+	var size, ratio;
 
-		toBase64Image: function() {
-			return this.canvas.toDataURL.apply(this.canvas, arguments);
-		},
+	if (helpers$1.isNullOrUndef(thickness)) {
+		size = ruler.min * options.categoryPercentage;
+		ratio = options.barPercentage;
+	} else {
+		// When bar thickness is enforced, category and bar percentages are ignored.
+		// Note(SB): we could add support for relative bar thickness (e.g. barThickness: '50%')
+		// and deprecate barPercentage since this value is ignored when thickness is absolute.
+		size = thickness * count;
+		ratio = 1;
+	}
 
-		initToolTip: function() {
-			var me = this;
-			me.tooltip = new Tooltip({
-				_chart: me,
-				_chartInstance: me, // deprecated, backward compatibility
-				_data: me.data,
-				_options: me.options.tooltips
-			}, me);
-		},
+	return {
+		chunk: size / count,
+		ratio: ratio,
+		start: curr - (size / 2)
+	};
+}
 
-		/**
-		 * @private
-		 */
-		bindEvents: function() {
-			var me = this;
-			var listeners = me._listeners = {};
-			var listener = function() {
-				me.eventHandler.apply(me, arguments);
-			};
+/**
+ * Computes an "optimal" category that globally arranges bars side by side (no gap when
+ * percentage options are 1), based on the previous and following categories. This mode
+ * generates bars with different widths when data are not evenly spaced.
+ * @private
+ */
+function computeFlexCategoryTraits(index, ruler, options) {
+	var pixels = ruler.pixels;
+	var curr = pixels[index];
+	var prev = index > 0 ? pixels[index - 1] : null;
+	var next = index < pixels.length - 1 ? pixels[index + 1] : null;
+	var percent = options.categoryPercentage;
+	var start, size;
 
-			helpers.each(me.options.events, function(type) {
-				platform.addEventListener(me, type, listener);
-				listeners[type] = listener;
-			});
+	if (prev === null) {
+		// first data: its size is double based on the next point or,
+		// if it's also the last data, we use the scale size.
+		prev = curr - (next === null ? ruler.end - ruler.start : next - curr);
+	}
 
-			// Elements used to detect size change should not be injected for non responsive charts.
-			// See https://github.com/chartjs/Chart.js/issues/2210
-			if (me.options.responsive) {
-				listener = function() {
-					me.resize();
-				};
+	if (next === null) {
+		// last data: its size is also double based on the previous point.
+		next = curr + curr - prev;
+	}
 
-				platform.addEventListener(me, 'resize', listener);
-				listeners.resize = listener;
-			}
-		},
+	start = curr - (curr - Math.min(prev, next)) / 2 * percent;
+	size = Math.abs(next - prev) / 2 * percent;
 
-		/**
-		 * @private
-		 */
-		unbindEvents: function() {
-			var me = this;
-			var listeners = me._listeners;
-			if (!listeners) {
-				return;
-			}
+	return {
+		chunk: size / ruler.stackCount,
+		ratio: options.barPercentage,
+		start: start
+	};
+}
 
-			delete me._listeners;
-			helpers.each(listeners, function(listener, type) {
-				platform.removeEventListener(me, type, listener);
-			});
-		},
+var controller_bar = core_datasetController.extend({
 
-		updateHoverStyle: function(elements, mode, enabled) {
-			var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
-			var element, i, ilen;
+	dataElementType: elements.Rectangle,
 
-			for (i = 0, ilen = elements.length; i < ilen; ++i) {
-				element = elements[i];
-				if (element) {
-					this.getDatasetMeta(element._datasetIndex).controller[method](element);
-				}
-			}
-		},
+	initialize: function() {
+		var me = this;
+		var meta;
 
-		/**
-		 * @private
-		 */
-		eventHandler: function(e) {
-			var me = this;
-			var tooltip = me.tooltip;
+		core_datasetController.prototype.initialize.apply(me, arguments);
 
-			if (plugins.notify(me, 'beforeEvent', [e]) === false) {
-				return;
-			}
+		meta = me.getMeta();
+		meta.stack = me.getDataset().stack;
+		meta.bar = true;
+	},
 
-			// Buffer any update calls so that renders do not occur
-			me._bufferedRender = true;
-			me._bufferedRequest = null;
-
-			var changed = me.handleEvent(e);
-			// for smooth tooltip animations issue #4989
-			// the tooltip should be the source of change
-			// Animation check workaround:
-			// tooltip._start will be null when tooltip isn't animating
-			if (tooltip) {
-				changed = tooltip._start
-					? tooltip.handleEvent(e)
-					: changed | tooltip.handleEvent(e);
-			}
-
-			plugins.notify(me, 'afterEvent', [e]);
-
-			var bufferedRequest = me._bufferedRequest;
-			if (bufferedRequest) {
-				// If we have an update that was triggered, we need to do a normal render
-				me.render(bufferedRequest);
-			} else if (changed && !me.animating) {
-				// If entering, leaving, or changing elements, animate the change via pivot
-				me.stop();
-
-				// We only need to render at this point. Updating will cause scales to be
-				// recomputed generating flicker & using more memory than necessary.
-				me.render({
-					duration: me.options.hover.animationDuration,
-					lazy: true
-				});
-			}
+	update: function(reset) {
+		var me = this;
+		var rects = me.getMeta().data;
+		var i, ilen;
 
-			me._bufferedRender = false;
-			me._bufferedRequest = null;
+		me._ruler = me.getRuler();
 
-			return me;
-		},
+		for (i = 0, ilen = rects.length; i < ilen; ++i) {
+			me.updateElement(rects[i], i, reset);
+		}
+	},
 
-		/**
-		 * Handle an event
-		 * @private
-		 * @param {IEvent} event the event to handle
-		 * @return {Boolean} true if the chart needs to re-render
-		 */
-		handleEvent: function(e) {
-			var me = this;
-			var options = me.options || {};
-			var hoverOptions = options.hover;
-			var changed = false;
+	updateElement: function(rectangle, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var dataset = me.getDataset();
+		var options = me._resolveElementOptions(rectangle, index);
+
+		rectangle._xScale = me.getScaleForId(meta.xAxisID);
+		rectangle._yScale = me.getScaleForId(meta.yAxisID);
+		rectangle._datasetIndex = me.index;
+		rectangle._index = index;
+		rectangle._model = {
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderSkipped: options.borderSkipped,
+			borderWidth: options.borderWidth,
+			datasetLabel: dataset.label,
+			label: me.chart.data.labels[index]
+		};
 
-			me.lastActive = me.lastActive || [];
+		me._updateElementGeometry(rectangle, index, reset);
 
-			// Find Active Elements for hover and tooltips
-			if (e.type === 'mouseout') {
-				me.active = [];
-			} else {
-				me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
+		rectangle.pivot();
+	},
+
+	/**
+	 * @private
+	 */
+	_updateElementGeometry: function(rectangle, index, reset) {
+		var me = this;
+		var model = rectangle._model;
+		var vscale = me._getValueScale();
+		var base = vscale.getBasePixel();
+		var horizontal = vscale.isHorizontal();
+		var ruler = me._ruler || me.getRuler();
+		var vpixels = me.calculateBarValuePixels(me.index, index);
+		var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);
+
+		model.horizontal = horizontal;
+		model.base = reset ? base : vpixels.base;
+		model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
+		model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
+		model.height = horizontal ? ipixels.size : undefined;
+		model.width = horizontal ? undefined : ipixels.size;
+	},
+
+	/**
+	 * Returns the stacks based on groups and bar visibility.
+	 * @param {number} [last] - The dataset index
+	 * @returns {string[]} The list of stack IDs
+	 * @private
+	 */
+	_getStacks: function(last) {
+		var me = this;
+		var chart = me.chart;
+		var scale = me._getIndexScale();
+		var stacked = scale.options.stacked;
+		var ilen = last === undefined ? chart.data.datasets.length : last + 1;
+		var stacks = [];
+		var i, meta;
+
+		for (i = 0; i < ilen; ++i) {
+			meta = chart.getDatasetMeta(i);
+			if (meta.bar && chart.isDatasetVisible(i) &&
+				(stacked === false ||
+				(stacked === true && stacks.indexOf(meta.stack) === -1) ||
+				(stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
+				stacks.push(meta.stack);
 			}
+		}
+
+		return stacks;
+	},
+
+	/**
+	 * Returns the effective number of stacks based on groups and bar visibility.
+	 * @private
+	 */
+	getStackCount: function() {
+		return this._getStacks().length;
+	},
 
-			// Invoke onHover hook
-			// Need to call with native event here to not break backwards compatibility
-			helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);
+	/**
+	 * Returns the stack index for the given dataset based on groups and bar visibility.
+	 * @param {number} [datasetIndex] - The dataset index
+	 * @param {string} [name] - The stack name to find
+	 * @returns {number} The stack index
+	 * @private
+	 */
+	getStackIndex: function(datasetIndex, name) {
+		var stacks = this._getStacks(datasetIndex);
+		var index = (name !== undefined)
+			? stacks.indexOf(name)
+			: -1; // indexOf returns -1 if element is not present
 
-			if (e.type === 'mouseup' || e.type === 'click') {
-				if (options.onClick) {
-					// Use e.native here for backwards compatibility
-					options.onClick.call(me, e.native, me.active);
+		return (index === -1)
+			? stacks.length - 1
+			: index;
+	},
+
+	/**
+	 * @private
+	 */
+	getRuler: function() {
+		var me = this;
+		var scale = me._getIndexScale();
+		var stackCount = me.getStackCount();
+		var datasetIndex = me.index;
+		var isHorizontal = scale.isHorizontal();
+		var start = isHorizontal ? scale.left : scale.top;
+		var end = start + (isHorizontal ? scale.width : scale.height);
+		var pixels = [];
+		var i, ilen, min;
+
+		for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
+			pixels.push(scale.getPixelForValue(null, i, datasetIndex));
+		}
+
+		min = helpers$1.isNullOrUndef(scale.options.barThickness)
+			? computeMinSampleSize(scale, pixels)
+			: -1;
+
+		return {
+			min: min,
+			pixels: pixels,
+			start: start,
+			end: end,
+			stackCount: stackCount,
+			scale: scale
+		};
+	},
+
+	/**
+	 * Note: pixel values are not clamped to the scale area.
+	 * @private
+	 */
+	calculateBarValuePixels: function(datasetIndex, index) {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var scale = me._getValueScale();
+		var isHorizontal = scale.isHorizontal();
+		var datasets = chart.data.datasets;
+		var value = +scale.getRightValue(datasets[datasetIndex].data[index]);
+		var minBarLength = scale.options.minBarLength;
+		var stacked = scale.options.stacked;
+		var stack = meta.stack;
+		var start = 0;
+		var i, imeta, ivalue, base, head, size;
+
+		if (stacked || (stacked === undefined && stack !== undefined)) {
+			for (i = 0; i < datasetIndex; ++i) {
+				imeta = chart.getDatasetMeta(i);
+
+				if (imeta.bar &&
+					imeta.stack === stack &&
+					imeta.controller._getValueScaleId() === scale.id &&
+					chart.isDatasetVisible(i)) {
+
+					ivalue = +scale.getRightValue(datasets[i].data[index]);
+					if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
+						start += ivalue;
+					}
 				}
 			}
+		}
 
-			// Remove styling for last active (even if it may still be active)
-			if (me.lastActive.length) {
-				me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
-			}
+		base = scale.getPixelForValue(start);
+		head = scale.getPixelForValue(start + value);
+		size = head - base;
 
-			// Built in hover styling
-			if (me.active.length && hoverOptions.mode) {
-				me.updateHoverStyle(me.active, hoverOptions.mode, true);
+		if (minBarLength !== undefined && Math.abs(size) < minBarLength) {
+			size = minBarLength;
+			if (value >= 0 && !isHorizontal || value < 0 && isHorizontal) {
+				head = base - minBarLength;
+			} else {
+				head = base + minBarLength;
 			}
+		}
 
-			changed = !helpers.arrayEquals(me.active, me.lastActive);
+		return {
+			size: size,
+			base: base,
+			head: head,
+			center: head + size / 2
+		};
+	},
 
-			// Remember Last Actives
-			me.lastActive = me.active;
+	/**
+	 * @private
+	 */
+	calculateBarIndexPixels: function(datasetIndex, index, ruler) {
+		var me = this;
+		var options = ruler.scale.options;
+		var range = options.barThickness === 'flex'
+			? computeFlexCategoryTraits(index, ruler, options)
+			: computeFitCategoryTraits(index, ruler, options);
+
+		var stackIndex = me.getStackIndex(datasetIndex, me.getMeta().stack);
+		var center = range.start + (range.chunk * stackIndex) + (range.chunk / 2);
+		var size = Math.min(
+			helpers$1.valueOrDefault(options.maxBarThickness, Infinity),
+			range.chunk * range.ratio);
+
+		return {
+			base: center - size / 2,
+			head: center + size / 2,
+			center: center,
+			size: size
+		};
+	},
 
-			return changed;
+	draw: function() {
+		var me = this;
+		var chart = me.chart;
+		var scale = me._getValueScale();
+		var rects = me.getMeta().data;
+		var dataset = me.getDataset();
+		var ilen = rects.length;
+		var i = 0;
+
+		helpers$1.canvas.clipArea(chart.ctx, chart.chartArea);
+
+		for (; i < ilen; ++i) {
+			if (!isNaN(scale.getRightValue(dataset.data[i]))) {
+				rects[i].draw();
+			}
 		}
-	});
+
+		helpers$1.canvas.unclipArea(chart.ctx);
+	},
 
 	/**
-	 * Provided for backward compatibility, use Chart instead.
-	 * @class Chart.Controller
-	 * @deprecated since version 2.6.0
-	 * @todo remove at version 3
 	 * @private
 	 */
-	Chart.Controller = Chart;
-};
+	_resolveElementOptions: function(rectangle, index) {
+		var me = this;
+		var chart = me.chart;
+		var datasets = chart.data.datasets;
+		var dataset = datasets[me.index];
+		var custom = rectangle.custom || {};
+		var options = chart.options.elements.rectangle;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-},{"22":22,"23":23,"26":26,"29":29,"31":31,"32":32,"34":34,"36":36,"46":46,"49":49}],25:[function(require,module,exports){
-'use strict';
+		var keys = [
+			'backgroundColor',
+			'borderColor',
+			'borderSkipped',
+			'borderWidth'
+		];
 
-var helpers = require(46);
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$1([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
 
-module.exports = function(Chart) {
+		return values;
+	}
+});
 
-	var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];
+var valueOrDefault$3 = helpers$1.valueOrDefault;
+var resolve$2 = helpers$1.options.resolve;
 
+core_defaults._set('bubble', {
+	hover: {
+		mode: 'single'
+	},
+
+	scales: {
+		xAxes: [{
+			type: 'linear', // bubble should probably use a linear scale by default
+			position: 'bottom',
+			id: 'x-axis-0' // need an ID so datasets can reference the scale
+		}],
+		yAxes: [{
+			type: 'linear',
+			position: 'left',
+			id: 'y-axis-0'
+		}]
+	},
+
+	tooltips: {
+		callbacks: {
+			title: function() {
+				// Title doesn't make sense for scatter since we format the data as a point
+				return '';
+			},
+			label: function(item, data) {
+				var datasetLabel = data.datasets[item.datasetIndex].label || '';
+				var dataPoint = data.datasets[item.datasetIndex].data[item.index];
+				return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
+			}
+		}
+	}
+});
+
+var controller_bubble = core_datasetController.extend({
 	/**
-	 * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
-	 * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
-	 * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
+	 * @protected
 	 */
-	function listenArrayEvents(array, listener) {
-		if (array._chartjs) {
-			array._chartjs.listeners.push(listener);
-			return;
-		}
+	dataElementType: elements.Point,
 
-		Object.defineProperty(array, '_chartjs', {
-			configurable: true,
-			enumerable: false,
-			value: {
-				listeners: [listener]
-			}
+	/**
+	 * @protected
+	 */
+	update: function(reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var points = meta.data;
+
+		// Update Points
+		helpers$1.each(points, function(point, index) {
+			me.updateElement(point, index, reset);
 		});
+	},
 
-		arrayEvents.forEach(function(key) {
-			var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
-			var base = array[key];
+	/**
+	 * @protected
+	 */
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var custom = point.custom || {};
+		var xScale = me.getScaleForId(meta.xAxisID);
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var options = me._resolveElementOptions(point, index);
+		var data = me.getDataset().data[index];
+		var dsIndex = me.index;
+
+		var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
+		var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);
+
+		point._xScale = xScale;
+		point._yScale = yScale;
+		point._options = options;
+		point._datasetIndex = dsIndex;
+		point._index = index;
+		point._model = {
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			hitRadius: options.hitRadius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			radius: reset ? 0 : options.radius,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			x: x,
+			y: y,
+		};
 
-			Object.defineProperty(array, key, {
-				configurable: true,
-				enumerable: false,
-				value: function() {
-					var args = Array.prototype.slice.call(arguments);
-					var res = base.apply(this, args);
+		point.pivot();
+	},
 
-					helpers.each(array._chartjs.listeners, function(object) {
-						if (typeof object[method] === 'function') {
-							object[method].apply(object, args);
-						}
-					});
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
+		};
 
-					return res;
-				}
-			});
-		});
-	}
+		model.backgroundColor = valueOrDefault$3(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$3(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$3(options.hoverBorderWidth, options.borderWidth);
+		model.radius = options.radius + options.hoverRadius;
+	},
 
 	/**
-	 * Removes the given array event listener and cleanup extra attached properties (such as
-	 * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
+	 * @private
 	 */
-	function unlistenArrayEvents(array, listener) {
-		var stub = array._chartjs;
-		if (!stub) {
-			return;
-		}
+	_resolveElementOptions: function(point, index) {
+		var me = this;
+		var chart = me.chart;
+		var datasets = chart.data.datasets;
+		var dataset = datasets[me.index];
+		var custom = point.custom || {};
+		var options = chart.options.elements.point;
+		var data = dataset.data[index];
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-		var listeners = stub.listeners;
-		var index = listeners.indexOf(listener);
-		if (index !== -1) {
-			listeners.splice(index, 1);
-		}
+		var keys = [
+			'backgroundColor',
+			'borderColor',
+			'borderWidth',
+			'hoverBackgroundColor',
+			'hoverBorderColor',
+			'hoverBorderWidth',
+			'hoverRadius',
+			'hitRadius',
+			'pointStyle',
+			'rotation'
+		];
 
-		if (listeners.length > 0) {
-			return;
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$2([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
 		}
 
-		arrayEvents.forEach(function(key) {
-			delete array[key];
-		});
+		// Custom radius resolution
+		values.radius = resolve$2([
+			custom.radius,
+			data ? data.r : undefined,
+			dataset.radius,
+			options.radius
+		], context, index);
 
-		delete array._chartjs;
+		return values;
 	}
+});
 
-	// Base class for all dataset controllers (line, bar, etc)
-	Chart.DatasetController = function(chart, datasetIndex) {
-		this.initialize(chart, datasetIndex);
-	};
+var resolve$3 = helpers$1.options.resolve;
+var valueOrDefault$4 = helpers$1.valueOrDefault;
 
-	helpers.extend(Chart.DatasetController.prototype, {
+core_defaults._set('doughnut', {
+	animation: {
+		// Boolean - Whether we animate the rotation of the Doughnut
+		animateRotate: true,
+		// Boolean - Whether we animate scaling the Doughnut from the centre
+		animateScale: false
+	},
+	hover: {
+		mode: 'single'
+	},
+	legendCallback: function(chart) {
+		var text = [];
+		text.push('<ul class="' + chart.id + '-legend">');
 
-		/**
-		 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
-		 * @type {Chart.core.element}
-		 */
-		datasetElementType: null,
+		var data = chart.data;
+		var datasets = data.datasets;
+		var labels = data.labels;
 
-		/**
-		 * Element type used to generate a meta data (e.g. Chart.element.Point).
-		 * @type {Chart.core.element}
-		 */
-		dataElementType: null,
-
-		initialize: function(chart, datasetIndex) {
-			var me = this;
-			me.chart = chart;
-			me.index = datasetIndex;
-			me.linkScales();
-			me.addElements();
-		},
+		if (datasets.length) {
+			for (var i = 0; i < datasets[0].data.length; ++i) {
+				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
+				if (labels[i]) {
+					text.push(labels[i]);
+				}
+				text.push('</li>');
+			}
+		}
 
-		updateIndex: function(datasetIndex) {
-			this.index = datasetIndex;
-		},
+		text.push('</ul>');
+		return text.join('');
+	},
+	legend: {
+		labels: {
+			generateLabels: function(chart) {
+				var data = chart.data;
+				if (data.labels.length && data.datasets.length) {
+					return data.labels.map(function(label, i) {
+						var meta = chart.getDatasetMeta(0);
+						var ds = data.datasets[0];
+						var arc = meta.data[i];
+						var custom = arc && arc.custom || {};
+						var arcOpts = chart.options.elements.arc;
+						var fill = resolve$3([custom.backgroundColor, ds.backgroundColor, arcOpts.backgroundColor], undefined, i);
+						var stroke = resolve$3([custom.borderColor, ds.borderColor, arcOpts.borderColor], undefined, i);
+						var bw = resolve$3([custom.borderWidth, ds.borderWidth, arcOpts.borderWidth], undefined, i);
 
-		linkScales: function() {
-			var me = this;
-			var meta = me.getMeta();
-			var dataset = me.getDataset();
+						return {
+							text: label,
+							fillStyle: fill,
+							strokeStyle: stroke,
+							lineWidth: bw,
+							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
 
-			if (meta.xAxisID === null || !(meta.xAxisID in me.chart.scales)) {
-				meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
-			}
-			if (meta.yAxisID === null || !(meta.yAxisID in me.chart.scales)) {
-				meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
+							// Extra data used for toggling the correct item
+							index: i
+						};
+					});
+				}
+				return [];
 			}
 		},
 
-		getDataset: function() {
-			return this.chart.data.datasets[this.index];
-		},
+		onClick: function(e, legendItem) {
+			var index = legendItem.index;
+			var chart = this.chart;
+			var i, ilen, meta;
 
-		getMeta: function() {
-			return this.chart.getDatasetMeta(this.index);
-		},
+			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+				meta = chart.getDatasetMeta(i);
+				// toggle visibility of index if exists
+				if (meta.data[index]) {
+					meta.data[index].hidden = !meta.data[index].hidden;
+				}
+			}
 
-		getScaleForId: function(scaleID) {
-			return this.chart.scales[scaleID];
-		},
+			chart.update();
+		}
+	},
 
-		reset: function() {
-			this.update(true);
-		},
+	// The percentage of the chart that we cut out of the middle.
+	cutoutPercentage: 50,
 
-		/**
-		 * @private
-		 */
-		destroy: function() {
-			if (this._data) {
-				unlistenArrayEvents(this._data, this);
-			}
-		},
+	// The rotation of the chart, where the first data arc begins.
+	rotation: Math.PI * -0.5,
 
-		createMetaDataset: function() {
-			var me = this;
-			var type = me.datasetElementType;
-			return type && new type({
-				_chart: me.chart,
-				_datasetIndex: me.index
-			});
-		},
+	// The total circumference of the chart.
+	circumference: Math.PI * 2.0,
 
-		createMetaData: function(index) {
-			var me = this;
-			var type = me.dataElementType;
-			return type && new type({
-				_chart: me.chart,
-				_datasetIndex: me.index,
-				_index: index
-			});
-		},
+	// Need to override these to give a nice default
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '';
+			},
+			label: function(tooltipItem, data) {
+				var dataLabel = data.labels[tooltipItem.index];
+				var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];
 
-		addElements: function() {
-			var me = this;
-			var meta = me.getMeta();
-			var data = me.getDataset().data || [];
-			var metaData = meta.data;
-			var i, ilen;
+				if (helpers$1.isArray(dataLabel)) {
+					// show value on first line of multiline label
+					// need to clone because we are changing the value
+					dataLabel = dataLabel.slice();
+					dataLabel[0] += value;
+				} else {
+					dataLabel += value;
+				}
 
-			for (i = 0, ilen = data.length; i < ilen; ++i) {
-				metaData[i] = metaData[i] || me.createMetaData(i);
+				return dataLabel;
 			}
+		}
+	}
+});
 
-			meta.dataset = meta.dataset || me.createMetaDataset();
-		},
+var controller_doughnut = core_datasetController.extend({
 
-		addElementAndReset: function(index) {
-			var element = this.createMetaData(index);
-			this.getMeta().data.splice(index, 0, element);
-			this.updateElement(element, index, true);
-		},
+	dataElementType: elements.Arc,
 
-		buildOrUpdateElements: function() {
-			var me = this;
-			var dataset = me.getDataset();
-			var data = dataset.data || (dataset.data = []);
-
-			// In order to correctly handle data addition/deletion animation (an thus simulate
-			// real-time charts), we need to monitor these data modifications and synchronize
-			// the internal meta data accordingly.
-			if (me._data !== data) {
-				if (me._data) {
-					// This case happens when the user replaced the data array instance.
-					unlistenArrayEvents(me._data, me);
-				}
+	linkScales: helpers$1.noop,
 
-				listenArrayEvents(data, me);
-				me._data = data;
+	// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
+	getRingIndex: function(datasetIndex) {
+		var ringIndex = 0;
+
+		for (var j = 0; j < datasetIndex; ++j) {
+			if (this.chart.isDatasetVisible(j)) {
+				++ringIndex;
 			}
+		}
 
-			// Re-sync meta data in case the user replaced the data array or if we missed
-			// any updates and so make sure that we handle number of datapoints changing.
-			me.resyncElements();
-		},
+		return ringIndex;
+	},
+
+	update: function(reset) {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var availableWidth = chartArea.right - chartArea.left;
+		var availableHeight = chartArea.bottom - chartArea.top;
+		var minSize = Math.min(availableWidth, availableHeight);
+		var offset = {x: 0, y: 0};
+		var meta = me.getMeta();
+		var arcs = meta.data;
+		var cutoutPercentage = opts.cutoutPercentage;
+		var circumference = opts.circumference;
+		var chartWeight = me._getRingWeight(me.index);
+		var i, ilen;
 
-		update: helpers.noop,
+		// If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
+		if (circumference < Math.PI * 2.0) {
+			var startAngle = opts.rotation % (Math.PI * 2.0);
+			startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
+			var endAngle = startAngle + circumference;
+			var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
+			var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
+			var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
+			var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
+			var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
+			var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
+			var cutout = cutoutPercentage / 100.0;
+			var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
+			var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
+			var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
+			minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
+			offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
+		}
 
-		transition: function(easingValue) {
-			var meta = this.getMeta();
-			var elements = meta.data || [];
-			var ilen = elements.length;
-			var i = 0;
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arcs[i]._options = me._resolveElementOptions(arcs[i], i);
+		}
 
-			for (; i < ilen; ++i) {
-				elements[i].transition(easingValue);
-			}
+		chart.borderWidth = me.getMaxBorderWidth();
+		chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
+		chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
+		chart.radiusLength = (chart.outerRadius - chart.innerRadius) / (me._getVisibleDatasetWeightTotal() || 1);
+		chart.offsetX = offset.x * chart.outerRadius;
+		chart.offsetY = offset.y * chart.outerRadius;
 
-			if (meta.dataset) {
-				meta.dataset.transition(easingValue);
-			}
-		},
+		meta.total = me.calculateTotal();
 
-		draw: function() {
-			var meta = this.getMeta();
-			var elements = meta.data || [];
-			var ilen = elements.length;
-			var i = 0;
+		me.outerRadius = chart.outerRadius - chart.radiusLength * me._getRingWeightOffset(me.index);
+		me.innerRadius = Math.max(me.outerRadius - chart.radiusLength * chartWeight, 0);
 
-			if (meta.dataset) {
-				meta.dataset.draw();
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			me.updateElement(arcs[i], i, reset);
+		}
+	},
+
+	updateElement: function(arc, index, reset) {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var animationOpts = opts.animation;
+		var centerX = (chartArea.left + chartArea.right) / 2;
+		var centerY = (chartArea.top + chartArea.bottom) / 2;
+		var startAngle = opts.rotation; // non reset case handled later
+		var endAngle = opts.rotation; // non reset case handled later
+		var dataset = me.getDataset();
+		var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
+		var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
+		var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
+		var options = arc._options || {};
+
+		helpers$1.extend(arc, {
+			// Utility
+			_datasetIndex: me.index,
+			_index: index,
+
+			// Desired view properties
+			_model: {
+				backgroundColor: options.backgroundColor,
+				borderColor: options.borderColor,
+				borderWidth: options.borderWidth,
+				borderAlign: options.borderAlign,
+				x: centerX + chart.offsetX,
+				y: centerY + chart.offsetY,
+				startAngle: startAngle,
+				endAngle: endAngle,
+				circumference: circumference,
+				outerRadius: outerRadius,
+				innerRadius: innerRadius,
+				label: helpers$1.valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
 			}
+		});
+
+		var model = arc._model;
 
-			for (; i < ilen; ++i) {
-				elements[i].draw();
+		// Set correct angles if not resetting
+		if (!reset || !animationOpts.animateRotate) {
+			if (index === 0) {
+				model.startAngle = opts.rotation;
+			} else {
+				model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
 			}
-		},
 
-		removeHoverStyle: function(element) {
-			helpers.merge(element._model, element.$previousStyle || {});
-			delete element.$previousStyle;
-		},
+			model.endAngle = model.startAngle + model.circumference;
+		}
 
-		setHoverStyle: function(element) {
-			var dataset = this.chart.data.datasets[element._datasetIndex];
-			var index = element._index;
-			var custom = element.custom || {};
-			var valueOrDefault = helpers.valueAtIndexOrDefault;
-			var getHoverColor = helpers.getHoverColor;
-			var model = element._model;
-
-			element.$previousStyle = {
-				backgroundColor: model.backgroundColor,
-				borderColor: model.borderColor,
-				borderWidth: model.borderWidth
-			};
+		arc.pivot();
+	},
 
-			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
-			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
-			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
-		},
+	calculateTotal: function() {
+		var dataset = this.getDataset();
+		var meta = this.getMeta();
+		var total = 0;
+		var value;
 
-		/**
-		 * @private
-		 */
-		resyncElements: function() {
-			var me = this;
-			var meta = me.getMeta();
-			var data = me.getDataset().data;
-			var numMeta = meta.data.length;
-			var numData = data.length;
-
-			if (numData < numMeta) {
-				meta.data.splice(numData, numMeta - numData);
-			} else if (numData > numMeta) {
-				me.insertElements(numMeta, numData - numMeta);
+		helpers$1.each(meta.data, function(element, index) {
+			value = dataset.data[index];
+			if (!isNaN(value) && !element.hidden) {
+				total += Math.abs(value);
 			}
-		},
+		});
 
-		/**
-		 * @private
-		 */
-		insertElements: function(start, count) {
-			for (var i = 0; i < count; ++i) {
-				this.addElementAndReset(start + i);
-			}
-		},
+		/* if (total === 0) {
+			total = NaN;
+		}*/
 
-		/**
-		 * @private
-		 */
-		onDataPush: function() {
-			this.insertElements(this.getDataset().data.length - 1, arguments.length);
-		},
+		return total;
+	},
 
-		/**
-		 * @private
-		 */
-		onDataPop: function() {
-			this.getMeta().data.pop();
-		},
+	calculateCircumference: function(value) {
+		var total = this.getMeta().total;
+		if (total > 0 && !isNaN(value)) {
+			return (Math.PI * 2.0) * (Math.abs(value) / total);
+		}
+		return 0;
+	},
 
-		/**
-		 * @private
-		 */
-		onDataShift: function() {
-			this.getMeta().data.shift();
-		},
+	// gets the max border or hover width to properly scale pie charts
+	getMaxBorderWidth: function(arcs) {
+		var me = this;
+		var max = 0;
+		var chart = me.chart;
+		var i, ilen, meta, arc, controller, options, borderWidth, hoverWidth;
 
-		/**
-		 * @private
-		 */
-		onDataSplice: function(start, count) {
-			this.getMeta().data.splice(start, count);
-			this.insertElements(start, arguments.length - 2);
-		},
+		if (!arcs) {
+			// Find the outmost visible dataset
+			for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
+				if (chart.isDatasetVisible(i)) {
+					meta = chart.getDatasetMeta(i);
+					arcs = meta.data;
+					if (i !== me.index) {
+						controller = meta.controller;
+					}
+					break;
+				}
+			}
+		}
 
-		/**
-		 * @private
-		 */
-		onDataUnshift: function() {
-			this.insertElements(0, arguments.length);
+		if (!arcs) {
+			return 0;
 		}
-	});
 
-	Chart.DatasetController.extend = helpers.inherits;
-};
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arc = arcs[i];
+			options = controller ? controller._resolveElementOptions(arc, i) : arc._options;
+			if (options.borderAlign !== 'inner') {
+				borderWidth = options.borderWidth;
+				hoverWidth = options.hoverBorderWidth;
 
-},{"46":46}],26:[function(require,module,exports){
-'use strict';
+				max = borderWidth > max ? borderWidth : max;
+				max = hoverWidth > max ? hoverWidth : max;
+			}
+		}
+		return max;
+	},
 
-var helpers = require(46);
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(arc) {
+		var model = arc._model;
+		var options = arc._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		arc.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+		};
+
+		model.backgroundColor = valueOrDefault$4(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$4(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$4(options.hoverBorderWidth, options.borderWidth);
+	},
 
-module.exports = {
 	/**
 	 * @private
 	 */
-	_set: function(scope, values) {
-		return helpers.merge(this[scope] || (this[scope] = {}), values);
-	}
-};
-
-},{"46":46}],27:[function(require,module,exports){
-'use strict';
+	_resolveElementOptions: function(arc, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var custom = arc.custom || {};
+		var options = chart.options.elements.arc;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-var color = require(3);
-var helpers = require(46);
+		var keys = [
+			'backgroundColor',
+			'borderColor',
+			'borderWidth',
+			'borderAlign',
+			'hoverBackgroundColor',
+			'hoverBorderColor',
+			'hoverBorderWidth',
+		];
 
-function interpolate(start, view, model, ease) {
-	var keys = Object.keys(model);
-	var i, ilen, key, actual, origin, target, type, c0, c1;
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$3([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
 
-	for (i = 0, ilen = keys.length; i < ilen; ++i) {
-		key = keys[i];
+		return values;
+	},
 
-		target = model[key];
+	/**
+	 * Get radius length offset of the dataset in relation to the visible datasets weights. This allows determining the inner and outer radius correctly
+	 * @private
+	 */
+	_getRingWeightOffset: function(datasetIndex) {
+		var ringWeightOffset = 0;
 
-		// if a value is added to the model after pivot() has been called, the view
-		// doesn't contain it, so let's initialize the view to the target value.
-		if (!view.hasOwnProperty(key)) {
-			view[key] = target;
+		for (var i = 0; i < datasetIndex; ++i) {
+			if (this.chart.isDatasetVisible(i)) {
+				ringWeightOffset += this._getRingWeight(i);
+			}
 		}
 
-		actual = view[key];
+		return ringWeightOffset;
+	},
 
-		if (actual === target || key[0] === '_') {
-			continue;
-		}
+	/**
+	 * @private
+	 */
+	_getRingWeight: function(dataSetIndex) {
+		return Math.max(valueOrDefault$4(this.chart.data.datasets[dataSetIndex].weight, 1), 0);
+	},
 
-		if (!start.hasOwnProperty(key)) {
-			start[key] = actual;
-		}
+	/**
+	 * Returns the sum of all visibile data set weights.  This value can be 0.
+	 * @private
+	 */
+	_getVisibleDatasetWeightTotal: function() {
+		return this._getRingWeightOffset(this.chart.data.datasets.length);
+	}
+});
 
-		origin = start[key];
+core_defaults._set('horizontalBar', {
+	hover: {
+		mode: 'index',
+		axis: 'y'
+	},
 
-		type = typeof target;
+	scales: {
+		xAxes: [{
+			type: 'linear',
+			position: 'bottom'
+		}],
 
-		if (type === typeof origin) {
-			if (type === 'string') {
-				c0 = color(origin);
-				if (c0.valid) {
-					c1 = color(target);
-					if (c1.valid) {
-						view[key] = c1.mix(c0, ease).rgbString();
-						continue;
-					}
-				}
-			} else if (type === 'number' && isFinite(origin) && isFinite(target)) {
-				view[key] = origin + (target - origin) * ease;
-				continue;
+		yAxes: [{
+			type: 'category',
+			position: 'left',
+			categoryPercentage: 0.8,
+			barPercentage: 0.9,
+			offset: true,
+			gridLines: {
+				offsetGridLines: true
 			}
+		}]
+	},
+
+	elements: {
+		rectangle: {
+			borderSkipped: 'left'
 		}
+	},
 
-		view[key] = target;
+	tooltips: {
+		mode: 'index',
+		axis: 'y'
 	}
-}
+});
 
-var Element = function(configuration) {
-	helpers.extend(this, configuration);
-	this.initialize.apply(this, arguments);
-};
+var controller_horizontalBar = controller_bar.extend({
+	/**
+	 * @private
+	 */
+	_getValueScaleId: function() {
+		return this.getMeta().xAxisID;
+	},
 
-helpers.extend(Element.prototype, {
+	/**
+	 * @private
+	 */
+	_getIndexScaleId: function() {
+		return this.getMeta().yAxisID;
+	}
+});
 
-	initialize: function() {
-		this.hidden = false;
-	},
+var valueOrDefault$5 = helpers$1.valueOrDefault;
+var resolve$4 = helpers$1.options.resolve;
+var isPointInArea = helpers$1.canvas._isPointInArea;
 
-	pivot: function() {
-		var me = this;
-		if (!me._view) {
-			me._view = helpers.clone(me._model);
-		}
-		me._start = {};
-		return me;
+core_defaults._set('line', {
+	showLines: true,
+	spanGaps: false,
+
+	hover: {
+		mode: 'label'
 	},
 
-	transition: function(ease) {
+	scales: {
+		xAxes: [{
+			type: 'category',
+			id: 'x-axis-0'
+		}],
+		yAxes: [{
+			type: 'linear',
+			id: 'y-axis-0'
+		}]
+	}
+});
+
+function lineEnabled(dataset, options) {
+	return valueOrDefault$5(dataset.showLine, options.showLines);
+}
+
+var controller_line = core_datasetController.extend({
+
+	datasetElementType: elements.Line,
+
+	dataElementType: elements.Point,
+
+	update: function(reset) {
 		var me = this;
-		var model = me._model;
-		var start = me._start;
-		var view = me._view;
+		var meta = me.getMeta();
+		var line = meta.dataset;
+		var points = meta.data || [];
+		var scale = me.getScaleForId(meta.yAxisID);
+		var dataset = me.getDataset();
+		var showLine = lineEnabled(dataset, me.chart.options);
+		var i, ilen;
 
-		// No animation -> No Transition
-		if (!model || ease === 1) {
-			me._view = model;
-			me._start = null;
-			return me;
-		}
+		// Update Line
+		if (showLine) {
+			// Compatibility: If the properties are defined with only the old name, use those values
+			if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
+				dataset.lineTension = dataset.tension;
+			}
 
-		if (!view) {
-			view = me._view = {};
-		}
+			// Utility
+			line._scale = scale;
+			line._datasetIndex = me.index;
+			// Data
+			line._children = points;
+			// Model
+			line._model = me._resolveLineOptions(line);
 
-		if (!start) {
-			start = me._start = {};
+			line.pivot();
 		}
 
-		interpolate(start, view, model, ease);
+		// Update Points
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			me.updateElement(points[i], i, reset);
+		}
 
-		return me;
-	},
+		if (showLine && line._model.tension !== 0) {
+			me.updateBezierControlPoints();
+		}
 
-	tooltipPosition: function() {
-		return {
-			x: this._model.x,
-			y: this._model.y
-		};
+		// Now pivot the point for animation
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			points[i].pivot();
+		}
 	},
 
-	hasValue: function() {
-		return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
-	}
-});
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var custom = point.custom || {};
+		var dataset = me.getDataset();
+		var datasetIndex = me.index;
+		var value = dataset.data[index];
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var xScale = me.getScaleForId(meta.xAxisID);
+		var lineModel = meta.dataset._model;
+		var x, y;
 
-Element.extend = helpers.inherits;
+		var options = me._resolvePointOptions(point, index);
 
-module.exports = Element;
+		x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
+		y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);
 
-},{"3":3,"46":46}],28:[function(require,module,exports){
-/* global window: false */
-/* global document: false */
-'use strict';
+		// Utility
+		point._xScale = xScale;
+		point._yScale = yScale;
+		point._options = options;
+		point._datasetIndex = datasetIndex;
+		point._index = index;
 
-var color = require(3);
-var defaults = require(26);
-var helpers = require(46);
-var scaleService = require(34);
+		// Desired view properties
+		point._model = {
+			x: x,
+			y: y,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			// Appearance
+			radius: options.radius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			tension: valueOrDefault$5(custom.tension, lineModel ? lineModel.tension : 0),
+			steppedLine: lineModel ? lineModel.steppedLine : false,
+			// Tooltip
+			hitRadius: options.hitRadius
+		};
+	},
 
-module.exports = function() {
+	/**
+	 * @private
+	 */
+	_resolvePointOptions: function(element, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.point;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-	// -- Basic js utility methods
+		var ELEMENT_OPTIONS = {
+			backgroundColor: 'pointBackgroundColor',
+			borderColor: 'pointBorderColor',
+			borderWidth: 'pointBorderWidth',
+			hitRadius: 'pointHitRadius',
+			hoverBackgroundColor: 'pointHoverBackgroundColor',
+			hoverBorderColor: 'pointHoverBorderColor',
+			hoverBorderWidth: 'pointHoverBorderWidth',
+			hoverRadius: 'pointHoverRadius',
+			pointStyle: 'pointStyle',
+			radius: 'pointRadius',
+			rotation: 'pointRotation'
+		};
+		var keys = Object.keys(ELEMENT_OPTIONS);
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$4([
+				custom[key],
+				dataset[ELEMENT_OPTIONS[key]],
+				dataset[key],
+				options[key]
+			], context, index);
+		}
 
-	helpers.configMerge = function(/* objects ... */) {
-		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
-			merger: function(key, target, source, options) {
-				var tval = target[key] || {};
-				var sval = source[key];
-
-				if (key === 'scales') {
-					// scale config merging is complex. Add our own function here for that
-					target[key] = helpers.scaleMerge(tval, sval);
-				} else if (key === 'scale') {
-					// used in polar area & radar charts since there is only one scale
-					target[key] = helpers.merge(tval, [scaleService.getScaleDefaults(sval.type), sval]);
-				} else {
-					helpers._merger(key, target, source, options);
-				}
-			}
-		});
-	};
+		return values;
+	},
 
-	helpers.scaleMerge = function(/* objects ... */) {
-		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
-			merger: function(key, target, source, options) {
-				if (key === 'xAxes' || key === 'yAxes') {
-					var slen = source[key].length;
-					var i, type, scale;
+	/**
+	 * @private
+	 */
+	_resolveLineOptions: function(element) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options;
+		var elementOptions = options.elements.line;
+		var values = {};
+		var i, ilen, key;
+
+		var keys = [
+			'backgroundColor',
+			'borderWidth',
+			'borderColor',
+			'borderCapStyle',
+			'borderDash',
+			'borderDashOffset',
+			'borderJoinStyle',
+			'fill',
+			'cubicInterpolationMode'
+		];
 
-					if (!target[key]) {
-						target[key] = [];
-					}
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$4([
+				custom[key],
+				dataset[key],
+				elementOptions[key]
+			]);
+		}
 
-					for (i = 0; i < slen; ++i) {
-						scale = source[key][i];
-						type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear');
+		// The default behavior of lines is to break at null values, according
+		// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
+		// This option gives lines the ability to span gaps
+		values.spanGaps = valueOrDefault$5(dataset.spanGaps, options.spanGaps);
+		values.tension = valueOrDefault$5(dataset.lineTension, elementOptions.tension);
+		values.steppedLine = resolve$4([custom.steppedLine, dataset.steppedLine, elementOptions.stepped]);
 
-						if (i >= target[key].length) {
-							target[key].push({});
-						}
+		return values;
+	},
 
-						if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
-							// new/untyped scale or type changed: let's apply the new defaults
-							// then merge source scale to correctly overwrite the defaults.
-							helpers.merge(target[key][i], [scaleService.getScaleDefaults(type), scale]);
-						} else {
-							// scales type are the same
-							helpers.merge(target[key][i], scale);
-						}
+	calculatePointY: function(value, index, datasetIndex) {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var yScale = me.getScaleForId(meta.yAxisID);
+		var sumPos = 0;
+		var sumNeg = 0;
+		var i, ds, dsMeta;
+
+		if (yScale.options.stacked) {
+			for (i = 0; i < datasetIndex; i++) {
+				ds = chart.data.datasets[i];
+				dsMeta = chart.getDatasetMeta(i);
+				if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
+					var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
+					if (stackedRightValue < 0) {
+						sumNeg += stackedRightValue || 0;
+					} else {
+						sumPos += stackedRightValue || 0;
 					}
-				} else {
-					helpers._merger(key, target, source, options);
 				}
 			}
-		});
-	};
 
-	helpers.where = function(collection, filterCallback) {
-		if (helpers.isArray(collection) && Array.prototype.filter) {
-			return collection.filter(filterCallback);
+			var rightValue = Number(yScale.getRightValue(value));
+			if (rightValue < 0) {
+				return yScale.getPixelForValue(sumNeg + rightValue);
+			}
+			return yScale.getPixelForValue(sumPos + rightValue);
 		}
-		var filtered = [];
 
-		helpers.each(collection, function(item) {
-			if (filterCallback(item)) {
-				filtered.push(item);
-			}
-		});
+		return yScale.getPixelForValue(value);
+	},
 
-		return filtered;
-	};
-	helpers.findIndex = Array.prototype.findIndex ?
-		function(array, callback, scope) {
-			return array.findIndex(callback, scope);
-		} :
-		function(array, callback, scope) {
-			scope = scope === undefined ? array : scope;
-			for (var i = 0, ilen = array.length; i < ilen; ++i) {
-				if (callback.call(scope, array[i], i, array)) {
-					return i;
-				}
-			}
-			return -1;
-		};
-	helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
-		// Default to start of the array
-		if (helpers.isNullOrUndef(startIndex)) {
-			startIndex = -1;
-		}
-		for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
-			var currentItem = arrayToSearch[i];
-			if (filterCallback(currentItem)) {
-				return currentItem;
-			}
+	updateBezierControlPoints: function() {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var lineModel = meta.dataset._model;
+		var area = chart.chartArea;
+		var points = meta.data || [];
+		var i, ilen, model, controlPoints;
+
+		// Only consider points that are drawn in case the spanGaps option is used
+		if (lineModel.spanGaps) {
+			points = points.filter(function(pt) {
+				return !pt._model.skip;
+			});
 		}
-	};
-	helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
-		// Default to end of the array
-		if (helpers.isNullOrUndef(startIndex)) {
-			startIndex = arrayToSearch.length;
+
+		function capControlPoint(pt, min, max) {
+			return Math.max(Math.min(pt, max), min);
 		}
-		for (var i = startIndex - 1; i >= 0; i--) {
-			var currentItem = arrayToSearch[i];
-			if (filterCallback(currentItem)) {
-				return currentItem;
+
+		if (lineModel.cubicInterpolationMode === 'monotone') {
+			helpers$1.splineCurveMonotone(points);
+		} else {
+			for (i = 0, ilen = points.length; i < ilen; ++i) {
+				model = points[i]._model;
+				controlPoints = helpers$1.splineCurve(
+					helpers$1.previousItem(points, i)._model,
+					model,
+					helpers$1.nextItem(points, i)._model,
+					lineModel.tension
+				);
+				model.controlPointPreviousX = controlPoints.previous.x;
+				model.controlPointPreviousY = controlPoints.previous.y;
+				model.controlPointNextX = controlPoints.next.x;
+				model.controlPointNextY = controlPoints.next.y;
 			}
 		}
-	};
 
-	// -- Math methods
-	helpers.isNumber = function(n) {
-		return !isNaN(parseFloat(n)) && isFinite(n);
-	};
-	helpers.almostEquals = function(x, y, epsilon) {
-		return Math.abs(x - y) < epsilon;
-	};
-	helpers.almostWhole = function(x, epsilon) {
-		var rounded = Math.round(x);
-		return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
-	};
-	helpers.max = function(array) {
-		return array.reduce(function(max, value) {
-			if (!isNaN(value)) {
-				return Math.max(max, value);
-			}
-			return max;
-		}, Number.NEGATIVE_INFINITY);
-	};
-	helpers.min = function(array) {
-		return array.reduce(function(min, value) {
-			if (!isNaN(value)) {
-				return Math.min(min, value);
-			}
-			return min;
-		}, Number.POSITIVE_INFINITY);
-	};
-	helpers.sign = Math.sign ?
-		function(x) {
-			return Math.sign(x);
-		} :
-		function(x) {
-			x = +x; // convert to a number
-			if (x === 0 || isNaN(x)) {
-				return x;
+		if (chart.options.elements.line.capBezierPoints) {
+			for (i = 0, ilen = points.length; i < ilen; ++i) {
+				model = points[i]._model;
+				if (isPointInArea(model, area)) {
+					if (i > 0 && isPointInArea(points[i - 1]._model, area)) {
+						model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
+						model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
+					}
+					if (i < points.length - 1 && isPointInArea(points[i + 1]._model, area)) {
+						model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
+						model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
+					}
+				}
 			}
-			return x > 0 ? 1 : -1;
-		};
-	helpers.log10 = Math.log10 ?
-		function(x) {
-			return Math.log10(x);
-		} :
-		function(x) {
-			var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
-			// Check for whole powers of 10,
-			// which due to floating point rounding error should be corrected.
-			var powerOf10 = Math.round(exponent);
-			var isPowerOf10 = x === Math.pow(10, powerOf10);
+		}
+	},
 
-			return isPowerOf10 ? powerOf10 : exponent;
-		};
-	helpers.toRadians = function(degrees) {
-		return degrees * (Math.PI / 180);
-	};
-	helpers.toDegrees = function(radians) {
-		return radians * (180 / Math.PI);
-	};
-	// Gets the angle from vertical upright to the point about a centre.
-	helpers.getAngleFromPoint = function(centrePoint, anglePoint) {
-		var distanceFromXCenter = anglePoint.x - centrePoint.x;
-		var distanceFromYCenter = anglePoint.y - centrePoint.y;
-		var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
+	draw: function() {
+		var me = this;
+		var chart = me.chart;
+		var meta = me.getMeta();
+		var points = meta.data || [];
+		var area = chart.chartArea;
+		var ilen = points.length;
+		var halfBorderWidth;
+		var i = 0;
 
-		var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
+		if (lineEnabled(me.getDataset(), chart.options)) {
+			halfBorderWidth = (meta.dataset._model.borderWidth || 0) / 2;
 
-		if (angle < (-0.5 * Math.PI)) {
-			angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
+			helpers$1.canvas.clipArea(chart.ctx, {
+				left: area.left,
+				right: area.right,
+				top: area.top - halfBorderWidth,
+				bottom: area.bottom + halfBorderWidth
+			});
+
+			meta.dataset.draw();
+
+			helpers$1.canvas.unclipArea(chart.ctx);
 		}
 
-		return {
-			angle: angle,
-			distance: radialDistanceFromCenter
+		// Draw the points
+		for (; i < ilen; ++i) {
+			points[i].draw(area);
+		}
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
 		};
-	};
-	helpers.distanceBetweenPoints = function(pt1, pt2) {
-		return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
-	};
-	helpers.aliasPixel = function(pixelWidth) {
-		return (pixelWidth % 2 === 0) ? 0 : 0.5;
-	};
-	helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
-		// Props to Rob Spencer at scaled innovation for his post on splining between points
-		// http://scaledinnovation.com/analytics/splines/aboutSplines.html
 
-		// This function must also respect "skipped" points
+		model.backgroundColor = valueOrDefault$5(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$5(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$5(options.hoverBorderWidth, options.borderWidth);
+		model.radius = valueOrDefault$5(options.hoverRadius, options.radius);
+	},
+});
 
-		var previous = firstPoint.skip ? middlePoint : firstPoint;
-		var current = middlePoint;
-		var next = afterPoint.skip ? middlePoint : afterPoint;
+var resolve$5 = helpers$1.options.resolve;
 
-		var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
-		var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
+core_defaults._set('polarArea', {
+	scale: {
+		type: 'radialLinear',
+		angleLines: {
+			display: false
+		},
+		gridLines: {
+			circular: true
+		},
+		pointLabels: {
+			display: false
+		},
+		ticks: {
+			beginAtZero: true
+		}
+	},
 
-		var s01 = d01 / (d01 + d12);
-		var s12 = d12 / (d01 + d12);
+	// Boolean - Whether to animate the rotation of the chart
+	animation: {
+		animateRotate: true,
+		animateScale: true
+	},
 
-		// If all points are the same, s01 & s02 will be inf
-		s01 = isNaN(s01) ? 0 : s01;
-		s12 = isNaN(s12) ? 0 : s12;
+	startAngle: -0.5 * Math.PI,
+	legendCallback: function(chart) {
+		var text = [];
+		text.push('<ul class="' + chart.id + '-legend">');
 
-		var fa = t * s01; // scaling factor for triangle Ta
-		var fb = t * s12;
+		var data = chart.data;
+		var datasets = data.datasets;
+		var labels = data.labels;
 
-		return {
-			previous: {
-				x: current.x - fa * (next.x - previous.x),
-				y: current.y - fa * (next.y - previous.y)
-			},
-			next: {
-				x: current.x + fb * (next.x - previous.x),
-				y: current.y + fb * (next.y - previous.y)
+		if (datasets.length) {
+			for (var i = 0; i < datasets[0].data.length; ++i) {
+				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
+				if (labels[i]) {
+					text.push(labels[i]);
+				}
+				text.push('</li>');
 			}
-		};
-	};
-	helpers.EPSILON = Number.EPSILON || 1e-14;
-	helpers.splineCurveMonotone = function(points) {
-		// This function calculates Bézier control points in a similar way than |splineCurve|,
-		// but preserves monotonicity of the provided data and ensures no local extremums are added
-		// between the dataset discrete points due to the interpolation.
-		// See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+		}
 
-		var pointsWithTangents = (points || []).map(function(point) {
-			return {
-				model: point._model,
-				deltaK: 0,
-				mK: 0
-			};
-		});
+		text.push('</ul>');
+		return text.join('');
+	},
+	legend: {
+		labels: {
+			generateLabels: function(chart) {
+				var data = chart.data;
+				if (data.labels.length && data.datasets.length) {
+					return data.labels.map(function(label, i) {
+						var meta = chart.getDatasetMeta(0);
+						var ds = data.datasets[0];
+						var arc = meta.data[i];
+						var custom = arc.custom || {};
+						var arcOpts = chart.options.elements.arc;
+						var fill = resolve$5([custom.backgroundColor, ds.backgroundColor, arcOpts.backgroundColor], undefined, i);
+						var stroke = resolve$5([custom.borderColor, ds.borderColor, arcOpts.borderColor], undefined, i);
+						var bw = resolve$5([custom.borderWidth, ds.borderWidth, arcOpts.borderWidth], undefined, i);
 
-		// Calculate slopes (deltaK) and initialize tangents (mK)
-		var pointsLen = pointsWithTangents.length;
-		var i, pointBefore, pointCurrent, pointAfter;
-		for (i = 0; i < pointsLen; ++i) {
-			pointCurrent = pointsWithTangents[i];
-			if (pointCurrent.model.skip) {
-				continue;
+						return {
+							text: label,
+							fillStyle: fill,
+							strokeStyle: stroke,
+							lineWidth: bw,
+							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,
+
+							// Extra data used for toggling the correct item
+							index: i
+						};
+					});
+				}
+				return [];
 			}
+		},
 
-			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
-			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
-			if (pointAfter && !pointAfter.model.skip) {
-				var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);
+		onClick: function(e, legendItem) {
+			var index = legendItem.index;
+			var chart = this.chart;
+			var i, ilen, meta;
 
-				// In the case of two points that appear at the same x pixel, slopeDeltaX is 0
-				pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
+			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+				meta = chart.getDatasetMeta(i);
+				meta.data[index].hidden = !meta.data[index].hidden;
 			}
 
-			if (!pointBefore || pointBefore.model.skip) {
-				pointCurrent.mK = pointCurrent.deltaK;
-			} else if (!pointAfter || pointAfter.model.skip) {
-				pointCurrent.mK = pointBefore.deltaK;
-			} else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
-				pointCurrent.mK = 0;
-			} else {
-				pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
-			}
+			chart.update();
 		}
+	},
 
-		// Adjust tangents to ensure monotonic properties
-		var alphaK, betaK, tauK, squaredMagnitude;
-		for (i = 0; i < pointsLen - 1; ++i) {
-			pointCurrent = pointsWithTangents[i];
-			pointAfter = pointsWithTangents[i + 1];
-			if (pointCurrent.model.skip || pointAfter.model.skip) {
-				continue;
+	// Need to override these to give a nice default
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '';
+			},
+			label: function(item, data) {
+				return data.labels[item.index] + ': ' + item.yLabel;
 			}
+		}
+	}
+});
 
-			if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
-				pointCurrent.mK = pointAfter.mK = 0;
-				continue;
-			}
+var controller_polarArea = core_datasetController.extend({
 
-			alphaK = pointCurrent.mK / pointCurrent.deltaK;
-			betaK = pointAfter.mK / pointCurrent.deltaK;
-			squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
-			if (squaredMagnitude <= 9) {
-				continue;
-			}
+	dataElementType: elements.Arc,
 
-			tauK = 3 / Math.sqrt(squaredMagnitude);
-			pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
-			pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
-		}
+	linkScales: helpers$1.noop,
 
-		// Compute control points
-		var deltaX;
-		for (i = 0; i < pointsLen; ++i) {
-			pointCurrent = pointsWithTangents[i];
-			if (pointCurrent.model.skip) {
-				continue;
-			}
+	update: function(reset) {
+		var me = this;
+		var dataset = me.getDataset();
+		var meta = me.getMeta();
+		var start = me.chart.options.startAngle || 0;
+		var starts = me._starts = [];
+		var angles = me._angles = [];
+		var arcs = meta.data;
+		var i, ilen, angle;
 
-			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
-			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
-			if (pointBefore && !pointBefore.model.skip) {
-				deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
-				pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
-				pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
-			}
-			if (pointAfter && !pointAfter.model.skip) {
-				deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
-				pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
-				pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
-			}
-		}
-	};
-	helpers.nextItem = function(collection, index, loop) {
-		if (loop) {
-			return index >= collection.length - 1 ? collection[0] : collection[index + 1];
-		}
-		return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
-	};
-	helpers.previousItem = function(collection, index, loop) {
-		if (loop) {
-			return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
-		}
-		return index <= 0 ? collection[0] : collection[index - 1];
-	};
-	// Implementation of the nice number algorithm used in determining where axis labels will go
-	helpers.niceNum = function(range, round) {
-		var exponent = Math.floor(helpers.log10(range));
-		var fraction = range / Math.pow(10, exponent);
-		var niceFraction;
+		me._updateRadius();
 
-		if (round) {
-			if (fraction < 1.5) {
-				niceFraction = 1;
-			} else if (fraction < 3) {
-				niceFraction = 2;
-			} else if (fraction < 7) {
-				niceFraction = 5;
-			} else {
-				niceFraction = 10;
-			}
-		} else if (fraction <= 1.0) {
-			niceFraction = 1;
-		} else if (fraction <= 2) {
-			niceFraction = 2;
-		} else if (fraction <= 5) {
-			niceFraction = 5;
-		} else {
-			niceFraction = 10;
+		meta.count = me.countVisibleElements();
+
+		for (i = 0, ilen = dataset.data.length; i < ilen; i++) {
+			starts[i] = start;
+			angle = me._computeAngle(i);
+			angles[i] = angle;
+			start += angle;
 		}
 
-		return niceFraction * Math.pow(10, exponent);
-	};
-	// Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
-	helpers.requestAnimFrame = (function() {
-		if (typeof window === 'undefined') {
-			return function(callback) {
-				callback();
-			};
+		for (i = 0, ilen = arcs.length; i < ilen; ++i) {
+			arcs[i]._options = me._resolveElementOptions(arcs[i], i);
+			me.updateElement(arcs[i], i, reset);
 		}
-		return window.requestAnimationFrame ||
-			window.webkitRequestAnimationFrame ||
-			window.mozRequestAnimationFrame ||
-			window.oRequestAnimationFrame ||
-			window.msRequestAnimationFrame ||
-			function(callback) {
-				return window.setTimeout(callback, 1000 / 60);
-			};
-	}());
-	// -- DOM methods
-	helpers.getRelativePosition = function(evt, chart) {
-		var mouseX, mouseY;
-		var e = evt.originalEvent || evt;
-		var canvas = evt.target || evt.srcElement;
-		var boundingRect = canvas.getBoundingClientRect();
+	},
 
-		var touches = e.touches;
-		if (touches && touches.length > 0) {
-			mouseX = touches[0].clientX;
-			mouseY = touches[0].clientY;
+	/**
+	 * @private
+	 */
+	_updateRadius: function() {
+		var me = this;
+		var chart = me.chart;
+		var chartArea = chart.chartArea;
+		var opts = chart.options;
+		var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
 
-		} else {
-			mouseX = e.clientX;
-			mouseY = e.clientY;
-		}
+		chart.outerRadius = Math.max(minSize / 2, 0);
+		chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
+		chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
 
-		// Scale mouse coordinates into canvas coordinates
-		// by following the pattern laid out by 'jerryj' in the comments of
-		// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
-		var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
-		var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
-		var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
-		var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
-		var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
-		var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
+		me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
+		me.innerRadius = me.outerRadius - chart.radiusLength;
+	},
 
-		// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
-		// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
-		mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
-		mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
+	updateElement: function(arc, index, reset) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var opts = chart.options;
+		var animationOpts = opts.animation;
+		var scale = chart.scale;
+		var labels = chart.data.labels;
+
+		var centerX = scale.xCenter;
+		var centerY = scale.yCenter;
+
+		// var negHalfPI = -0.5 * Math.PI;
+		var datasetStartAngle = opts.startAngle;
+		var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
+		var startAngle = me._starts[index];
+		var endAngle = startAngle + (arc.hidden ? 0 : me._angles[index]);
+
+		var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
+		var options = arc._options || {};
+
+		helpers$1.extend(arc, {
+			// Utility
+			_datasetIndex: me.index,
+			_index: index,
+			_scale: scale,
 
-		return {
-			x: mouseX,
-			y: mouseY
-		};
+			// Desired view properties
+			_model: {
+				backgroundColor: options.backgroundColor,
+				borderColor: options.borderColor,
+				borderWidth: options.borderWidth,
+				borderAlign: options.borderAlign,
+				x: centerX,
+				y: centerY,
+				innerRadius: 0,
+				outerRadius: reset ? resetRadius : distance,
+				startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
+				endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
+				label: helpers$1.valueAtIndexOrDefault(labels, index, labels[index])
+			}
+		});
 
-	};
+		arc.pivot();
+	},
 
-	// Private helper function to convert max-width/max-height values that may be percentages into a number
-	function parseMaxStyle(styleValue, node, parentProperty) {
-		var valueInPixels;
-		if (typeof styleValue === 'string') {
-			valueInPixels = parseInt(styleValue, 10);
+	countVisibleElements: function() {
+		var dataset = this.getDataset();
+		var meta = this.getMeta();
+		var count = 0;
 
-			if (styleValue.indexOf('%') !== -1) {
-				// percentage * size in dimension
-				valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
+		helpers$1.each(meta.data, function(element, index) {
+			if (!isNaN(dataset.data[index]) && !element.hidden) {
+				count++;
 			}
-		} else {
-			valueInPixels = styleValue;
-		}
+		});
 
-		return valueInPixels;
-	}
+		return count;
+	},
+
+	/**
+	 * @protected
+	 */
+	setHoverStyle: function(arc) {
+		var model = arc._model;
+		var options = arc._options;
+		var getHoverColor = helpers$1.getHoverColor;
+		var valueOrDefault = helpers$1.valueOrDefault;
+
+		arc.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+		};
+
+		model.backgroundColor = valueOrDefault(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault(options.hoverBorderWidth, options.borderWidth);
+	},
 
 	/**
-	 * Returns if the given value contains an effective constraint.
 	 * @private
 	 */
-	function isConstrainedValue(value) {
-		return value !== undefined && value !== null && value !== 'none';
-	}
+	_resolveElementOptions: function(arc, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = me.getDataset();
+		var custom = arc.custom || {};
+		var options = chart.options.elements.arc;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-	// Private helper to get a constraint dimension
-	// @param domNode : the node to check the constraint on
-	// @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
-	// @param percentageProperty : property of parent to use when calculating width as a percentage
-	// @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
-	function getConstraintDimension(domNode, maxStyle, percentageProperty) {
-		var view = document.defaultView;
-		var parentNode = helpers._getParentNode(domNode);
-		var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
-		var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
-		var hasCNode = isConstrainedValue(constrainedNode);
-		var hasCContainer = isConstrainedValue(constrainedContainer);
-		var infinity = Number.POSITIVE_INFINITY;
+		var keys = [
+			'backgroundColor',
+			'borderColor',
+			'borderWidth',
+			'borderAlign',
+			'hoverBackgroundColor',
+			'hoverBorderColor',
+			'hoverBorderWidth',
+		];
 
-		if (hasCNode || hasCContainer) {
-			return Math.min(
-				hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
-				hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$5([
+				custom[key],
+				dataset[key],
+				options[key]
+			], context, index);
 		}
 
-		return 'none';
-	}
-	// returns Number or undefined if no constraint
-	helpers.getConstraintWidth = function(domNode) {
-		return getConstraintDimension(domNode, 'max-width', 'clientWidth');
-	};
-	// returns Number or undefined if no constraint
-	helpers.getConstraintHeight = function(domNode) {
-		return getConstraintDimension(domNode, 'max-height', 'clientHeight');
-	};
-	/**
-	 * @private
- 	 */
-	helpers._calculatePadding = function(container, padding, parentDimension) {
-		padding = helpers.getStyle(container, padding);
+		return values;
+	},
 
-		return padding.indexOf('%') > -1 ? parentDimension / parseInt(padding, 10) : parseInt(padding, 10);
-	};
 	/**
 	 * @private
 	 */
-	helpers._getParentNode = function(domNode) {
-		var parent = domNode.parentNode;
-		if (parent && parent.host) {
-			parent = parent.host;
-		}
-		return parent;
-	};
-	helpers.getMaximumWidth = function(domNode) {
-		var container = helpers._getParentNode(domNode);
-		if (!container) {
-			return domNode.clientWidth;
+	_computeAngle: function(index) {
+		var me = this;
+		var count = this.getMeta().count;
+		var dataset = me.getDataset();
+		var meta = me.getMeta();
+
+		if (isNaN(dataset.data[index]) || meta.data[index].hidden) {
+			return 0;
 		}
 
-		var clientWidth = container.clientWidth;
-		var paddingLeft = helpers._calculatePadding(container, 'padding-left', clientWidth);
-		var paddingRight = helpers._calculatePadding(container, 'padding-right', clientWidth);
+		// Scriptable options
+		var context = {
+			chart: me.chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
 
-		var w = clientWidth - paddingLeft - paddingRight;
-		var cw = helpers.getConstraintWidth(domNode);
-		return isNaN(cw) ? w : Math.min(w, cw);
-	};
-	helpers.getMaximumHeight = function(domNode) {
-		var container = helpers._getParentNode(domNode);
-		if (!container) {
-			return domNode.clientHeight;
-		}
+		return resolve$5([
+			me.chart.options.elements.arc.angle,
+			(2 * Math.PI) / count
+		], context, index);
+	}
+});
 
-		var clientHeight = container.clientHeight;
-		var paddingTop = helpers._calculatePadding(container, 'padding-top', clientHeight);
-		var paddingBottom = helpers._calculatePadding(container, 'padding-bottom', clientHeight);
+core_defaults._set('pie', helpers$1.clone(core_defaults.doughnut));
+core_defaults._set('pie', {
+	cutoutPercentage: 0
+});
 
-		var h = clientHeight - paddingTop - paddingBottom;
-		var ch = helpers.getConstraintHeight(domNode);
-		return isNaN(ch) ? h : Math.min(h, ch);
-	};
-	helpers.getStyle = function(el, property) {
-		return el.currentStyle ?
-			el.currentStyle[property] :
-			document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
-	};
-	helpers.retinaScale = function(chart, forceRatio) {
-		var pixelRatio = chart.currentDevicePixelRatio = forceRatio || (typeof window !== 'undefined' && window.devicePixelRatio) || 1;
-		if (pixelRatio === 1) {
-			return;
+// Pie charts are Doughnut chart with different defaults
+var controller_pie = controller_doughnut;
+
+var valueOrDefault$6 = helpers$1.valueOrDefault;
+var resolve$6 = helpers$1.options.resolve;
+
+core_defaults._set('radar', {
+	scale: {
+		type: 'radialLinear'
+	},
+	elements: {
+		line: {
+			tension: 0 // no bezier in radar
 		}
+	}
+});
 
-		var canvas = chart.canvas;
-		var height = chart.height;
-		var width = chart.width;
+var controller_radar = core_datasetController.extend({
 
-		canvas.height = height * pixelRatio;
-		canvas.width = width * pixelRatio;
-		chart.ctx.scale(pixelRatio, pixelRatio);
+	datasetElementType: elements.Line,
 
-		// If no style has been set on the canvas, the render size is used as display size,
-		// making the chart visually bigger, so let's enforce it to the "correct" values.
-		// See https://github.com/chartjs/Chart.js/issues/3575
-		if (!canvas.style.height && !canvas.style.width) {
-			canvas.style.height = height + 'px';
-			canvas.style.width = width + 'px';
+	dataElementType: elements.Point,
+
+	linkScales: helpers$1.noop,
+
+	update: function(reset) {
+		var me = this;
+		var meta = me.getMeta();
+		var line = meta.dataset;
+		var points = meta.data || [];
+		var scale = me.chart.scale;
+		var dataset = me.getDataset();
+		var i, ilen;
+
+		// Compatibility: If the properties are defined with only the old name, use those values
+		if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
+			dataset.lineTension = dataset.tension;
 		}
-	};
-	// -- Canvas methods
-	helpers.fontString = function(pixelSize, fontStyle, fontFamily) {
-		return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
-	};
-	helpers.longestText = function(ctx, font, arrayOfThings, cache) {
-		cache = cache || {};
-		var data = cache.data = cache.data || {};
-		var gc = cache.garbageCollect = cache.garbageCollect || [];
 
-		if (cache.font !== font) {
-			data = cache.data = {};
-			gc = cache.garbageCollect = [];
-			cache.font = font;
+		// Utility
+		line._scale = scale;
+		line._datasetIndex = me.index;
+		// Data
+		line._children = points;
+		line._loop = true;
+		// Model
+		line._model = me._resolveLineOptions(line);
+
+		line.pivot();
+
+		// Update Points
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			me.updateElement(points[i], i, reset);
 		}
 
-		ctx.font = font;
-		var longest = 0;
-		helpers.each(arrayOfThings, function(thing) {
-			// Undefined strings and arrays should not be measured
-			if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
-				longest = helpers.measureText(ctx, data, gc, longest, thing);
-			} else if (helpers.isArray(thing)) {
-				// if it is an array lets measure each element
-				// to do maybe simplify this function a bit so we can do this more recursively?
-				helpers.each(thing, function(nestedThing) {
-					// Undefined strings and arrays should not be measured
-					if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
-						longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
-					}
-				});
-			}
-		});
+		// Update bezier control points
+		me.updateBezierControlPoints();
 
-		var gcLen = gc.length / 2;
-		if (gcLen > arrayOfThings.length) {
-			for (var i = 0; i < gcLen; i++) {
-				delete data[gc[i]];
-			}
-			gc.splice(0, gcLen);
+		// Now pivot the point for animation
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			points[i].pivot();
 		}
-		return longest;
-	};
-	helpers.measureText = function(ctx, data, gc, longest, string) {
-		var textWidth = data[string];
-		if (!textWidth) {
-			textWidth = data[string] = ctx.measureText(string).width;
-			gc.push(string);
+	},
+
+	updateElement: function(point, index, reset) {
+		var me = this;
+		var custom = point.custom || {};
+		var dataset = me.getDataset();
+		var scale = me.chart.scale;
+		var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);
+		var options = me._resolvePointOptions(point, index);
+		var lineModel = me.getMeta().dataset._model;
+		var x = reset ? scale.xCenter : pointPosition.x;
+		var y = reset ? scale.yCenter : pointPosition.y;
+
+		// Utility
+		point._scale = scale;
+		point._options = options;
+		point._datasetIndex = me.index;
+		point._index = index;
+
+		// Desired view properties
+		point._model = {
+			x: x, // value not used in dataset scale, but we want a consistent API between scales
+			y: y,
+			skip: custom.skip || isNaN(x) || isNaN(y),
+			// Appearance
+			radius: options.radius,
+			pointStyle: options.pointStyle,
+			rotation: options.rotation,
+			backgroundColor: options.backgroundColor,
+			borderColor: options.borderColor,
+			borderWidth: options.borderWidth,
+			tension: valueOrDefault$6(custom.tension, lineModel ? lineModel.tension : 0),
+
+			// Tooltip
+			hitRadius: options.hitRadius
+		};
+	},
+
+	/**
+	 * @private
+	 */
+	_resolvePointOptions: function(element, index) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.point;
+		var values = {};
+		var i, ilen, key;
+
+		// Scriptable options
+		var context = {
+			chart: chart,
+			dataIndex: index,
+			dataset: dataset,
+			datasetIndex: me.index
+		};
+
+		var ELEMENT_OPTIONS = {
+			backgroundColor: 'pointBackgroundColor',
+			borderColor: 'pointBorderColor',
+			borderWidth: 'pointBorderWidth',
+			hitRadius: 'pointHitRadius',
+			hoverBackgroundColor: 'pointHoverBackgroundColor',
+			hoverBorderColor: 'pointHoverBorderColor',
+			hoverBorderWidth: 'pointHoverBorderWidth',
+			hoverRadius: 'pointHoverRadius',
+			pointStyle: 'pointStyle',
+			radius: 'pointRadius',
+			rotation: 'pointRotation'
+		};
+		var keys = Object.keys(ELEMENT_OPTIONS);
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$6([
+				custom[key],
+				dataset[ELEMENT_OPTIONS[key]],
+				dataset[key],
+				options[key]
+			], context, index);
 		}
-		if (textWidth > longest) {
-			longest = textWidth;
+
+		return values;
+	},
+
+	/**
+	 * @private
+	 */
+	_resolveLineOptions: function(element) {
+		var me = this;
+		var chart = me.chart;
+		var dataset = chart.data.datasets[me.index];
+		var custom = element.custom || {};
+		var options = chart.options.elements.line;
+		var values = {};
+		var i, ilen, key;
+
+		var keys = [
+			'backgroundColor',
+			'borderWidth',
+			'borderColor',
+			'borderCapStyle',
+			'borderDash',
+			'borderDashOffset',
+			'borderJoinStyle',
+			'fill'
+		];
+
+		for (i = 0, ilen = keys.length; i < ilen; ++i) {
+			key = keys[i];
+			values[key] = resolve$6([
+				custom[key],
+				dataset[key],
+				options[key]
+			]);
 		}
-		return longest;
-	};
-	helpers.numberOfLabelLines = function(arrayOfThings) {
-		var numberOfLines = 1;
-		helpers.each(arrayOfThings, function(thing) {
-			if (helpers.isArray(thing)) {
-				if (thing.length > numberOfLines) {
-					numberOfLines = thing.length;
-				}
-			}
-		});
-		return numberOfLines;
-	};
 
-	helpers.color = !color ?
-		function(value) {
-			console.error('Color.js not found!');
-			return value;
-		} :
-		function(value) {
-			/* global CanvasGradient */
-			if (value instanceof CanvasGradient) {
-				value = defaults.global.defaultColor;
-			}
+		values.tension = valueOrDefault$6(dataset.lineTension, options.tension);
+
+		return values;
+	},
 
-			return color(value);
+	updateBezierControlPoints: function() {
+		var me = this;
+		var meta = me.getMeta();
+		var area = me.chart.chartArea;
+		var points = meta.data || [];
+		var i, ilen, model, controlPoints;
+
+		function capControlPoint(pt, min, max) {
+			return Math.max(Math.min(pt, max), min);
+		}
+
+		for (i = 0, ilen = points.length; i < ilen; ++i) {
+			model = points[i]._model;
+			controlPoints = helpers$1.splineCurve(
+				helpers$1.previousItem(points, i, true)._model,
+				model,
+				helpers$1.nextItem(points, i, true)._model,
+				model.tension
+			);
+
+			// Prevent the bezier going outside of the bounds of the graph
+			model.controlPointPreviousX = capControlPoint(controlPoints.previous.x, area.left, area.right);
+			model.controlPointPreviousY = capControlPoint(controlPoints.previous.y, area.top, area.bottom);
+			model.controlPointNextX = capControlPoint(controlPoints.next.x, area.left, area.right);
+			model.controlPointNextY = capControlPoint(controlPoints.next.y, area.top, area.bottom);
+		}
+	},
+
+	setHoverStyle: function(point) {
+		var model = point._model;
+		var options = point._options;
+		var getHoverColor = helpers$1.getHoverColor;
+
+		point.$previousStyle = {
+			backgroundColor: model.backgroundColor,
+			borderColor: model.borderColor,
+			borderWidth: model.borderWidth,
+			radius: model.radius
 		};
 
-	helpers.getHoverColor = function(colorValue) {
-		/* global CanvasPattern */
-		return (colorValue instanceof CanvasPattern) ?
-			colorValue :
-			helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString();
-	};
-};
+		model.backgroundColor = valueOrDefault$6(options.hoverBackgroundColor, getHoverColor(options.backgroundColor));
+		model.borderColor = valueOrDefault$6(options.hoverBorderColor, getHoverColor(options.borderColor));
+		model.borderWidth = valueOrDefault$6(options.hoverBorderWidth, options.borderWidth);
+		model.radius = valueOrDefault$6(options.hoverRadius, options.radius);
+	}
+});
 
-},{"26":26,"3":3,"34":34,"46":46}],29:[function(require,module,exports){
-'use strict';
+core_defaults._set('scatter', {
+	hover: {
+		mode: 'single'
+	},
+
+	scales: {
+		xAxes: [{
+			id: 'x-axis-1',    // need an ID so datasets can reference the scale
+			type: 'linear',    // scatter should not use a category axis
+			position: 'bottom'
+		}],
+		yAxes: [{
+			id: 'y-axis-1',
+			type: 'linear',
+			position: 'left'
+		}]
+	},
+
+	showLines: false,
+
+	tooltips: {
+		callbacks: {
+			title: function() {
+				return '';     // doesn't make sense for scatter since data are formatted as a point
+			},
+			label: function(item) {
+				return '(' + item.xLabel + ', ' + item.yLabel + ')';
+			}
+		}
+	}
+});
 
-var helpers = require(46);
+// Scatter charts use line controllers
+var controller_scatter = controller_line;
+
+// NOTE export a map in which the key represents the controller type, not
+// the class, and so must be CamelCase in order to be correctly retrieved
+// by the controller in core.controller.js (`controllers[meta.type]`).
+
+var controllers = {
+	bar: controller_bar,
+	bubble: controller_bubble,
+	doughnut: controller_doughnut,
+	horizontalBar: controller_horizontalBar,
+	line: controller_line,
+	polarArea: controller_polarArea,
+	pie: controller_pie,
+	radar: controller_radar,
+	scatter: controller_scatter
+};
 
 /**
  * Helper function to get relative position for an event
  * @param {Event|IEvent} event - The event to get the position for
  * @param {Chart} chart - The chart
- * @returns {Point} the event position
+ * @returns {object} the event position
  */
 function getRelativePosition(e, chart) {
 	if (e.native) {
@@ -5906,13 +5840,13 @@ function getRelativePosition(e, chart) {
 		};
 	}
 
-	return helpers.getRelativePosition(e, chart);
+	return helpers$1.getRelativePosition(e, chart);
 }
 
 /**
  * Helper function to traverse all of the visible elements in the chart
- * @param chart {chart} the chart
- * @param handler {Function} the callback to execute for each visible item
+ * @param {Chart} chart - the chart
+ * @param {function} handler - the callback to execute for each visible item
  */
 function parseVisibleItems(chart, handler) {
 	var datasets = chart.data.datasets;
@@ -5935,8 +5869,8 @@ function parseVisibleItems(chart, handler) {
 
 /**
  * Helper function to get the items that intersect the event position
- * @param items {ChartElement[]} elements to filter
- * @param position {Point} the point to be nearest to
+ * @param {ChartElement[]} items - elements to filter
+ * @param {object} position - the point to be nearest to
  * @return {ChartElement[]} the nearest items
  */
 function getIntersectItems(chart, position) {
@@ -5953,10 +5887,10 @@ function getIntersectItems(chart, position) {
 
 /**
  * Helper function to get the items nearest to the event position considering all visible items in teh chart
- * @param chart {Chart} the chart to look at elements from
- * @param position {Point} the point to be nearest to
- * @param intersect {Boolean} if true, only consider items that intersect the position
- * @param distanceMetric {Function} function to provide the distance between points
+ * @param {Chart} chart - the chart to look at elements from
+ * @param {object} position - the point to be nearest to
+ * @param {boolean} intersect - if true, only consider items that intersect the position
+ * @param {function} distanceMetric - function to provide the distance between points
  * @return {ChartElement[]} the nearest items
  */
 function getNearestItems(chart, position, intersect, distanceMetric) {
@@ -5970,7 +5904,6 @@ function getNearestItems(chart, position, intersect, distanceMetric) {
 
 		var center = element.getCenterPoint();
 		var distance = distanceMetric(position, center);
-
 		if (distance < minDistance) {
 			nearestItems = [element];
 			minDistance = distance;
@@ -5986,7 +5919,7 @@ function getNearestItems(chart, position, intersect, distanceMetric) {
 /**
  * Get a distance metric function for two points based on the
  * axis mode setting
- * @param {String} axis the axis mode. x|y|xy
+ * @param {string} axis - the axis mode. x|y|xy
  */
 function getDistanceMetricForAxis(axis) {
 	var useX = axis.indexOf('x') !== -1;
@@ -6039,7 +5972,7 @@ function indexMode(chart, e, options) {
  * Contains interaction related functions
  * @namespace Chart.Interaction
  */
-module.exports = {
+var core_interaction = {
 	// Helper function for different modes
 	modes: {
 		single: function(chart, e) {
@@ -6069,9 +6002,9 @@ module.exports = {
 		 * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
 		 * @function Chart.Interaction.modes.index
 		 * @since v2.4.0
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
-		 * @param options {IInteractionOptions} options to use during interaction
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use during interaction
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		index: indexMode,
@@ -6080,9 +6013,9 @@ module.exports = {
 		 * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
 		 * If the options.intersect is false, we find the nearest item and return the items in that dataset
 		 * @function Chart.Interaction.modes.dataset
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
-		 * @param options {IInteractionOptions} options to use during interaction
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use during interaction
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		dataset: function(chart, e, options) {
@@ -6112,8 +6045,8 @@ module.exports = {
 		 * Point mode returns all elements that hit test based on the event position
 		 * of the event
 		 * @function Chart.Interaction.modes.intersect
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		point: function(chart, e) {
@@ -6124,43 +6057,24 @@ module.exports = {
 		/**
 		 * nearest mode returns the element closest to the point
 		 * @function Chart.Interaction.modes.intersect
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
-		 * @param options {IInteractionOptions} options to use
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		nearest: function(chart, e, options) {
 			var position = getRelativePosition(e, chart);
 			options.axis = options.axis || 'xy';
 			var distanceMetric = getDistanceMetricForAxis(options.axis);
-			var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric);
-
-			// We have multiple items at the same distance from the event. Now sort by smallest
-			if (nearestItems.length > 1) {
-				nearestItems.sort(function(a, b) {
-					var sizeA = a.getArea();
-					var sizeB = b.getArea();
-					var ret = sizeA - sizeB;
-
-					if (ret === 0) {
-						// if equal sort by dataset index
-						ret = a._datasetIndex - b._datasetIndex;
-					}
-
-					return ret;
-				});
-			}
-
-			// Return only 1 item
-			return nearestItems.slice(0, 1);
+			return getNearestItems(chart, position, options.intersect, distanceMetric);
 		},
 
 		/**
 		 * x mode returns the elements that hit-test at the current x coordinate
 		 * @function Chart.Interaction.modes.x
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
-		 * @param options {IInteractionOptions} options to use
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		x: function(chart, e, options) {
@@ -6189,9 +6103,9 @@ module.exports = {
 		/**
 		 * y mode returns the elements that hit-test at the current y coordinate
 		 * @function Chart.Interaction.modes.y
-		 * @param chart {chart} the chart we are returning items from
-		 * @param e {Event} the event we are find things at
-		 * @param options {IInteractionOptions} options to use
+		 * @param {Chart} chart - the chart we are returning items from
+		 * @param {Event} e - the event we are find things at
+		 * @param {IInteractionOptions} options - options to use
 		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
 		 */
 		y: function(chart, e, options) {
@@ -6219,64 +6133,8 @@ module.exports = {
 	}
 };
 
-},{"46":46}],30:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-
-defaults._set('global', {
-	responsive: true,
-	responsiveAnimationDuration: 0,
-	maintainAspectRatio: true,
-	events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'],
-	hover: {
-		onHover: null,
-		mode: 'nearest',
-		intersect: true,
-		animationDuration: 400
-	},
-	onClick: null,
-	defaultColor: 'rgba(0,0,0,0.1)',
-	defaultFontColor: '#666',
-	defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
-	defaultFontSize: 12,
-	defaultFontStyle: 'normal',
-	showLines: true,
-
-	// Element defaults defined in element extensions
-	elements: {},
-
-	// Layout options such as padding
-	layout: {
-		padding: {
-			top: 0,
-			right: 0,
-			bottom: 0,
-			left: 0
-		}
-	}
-});
-
-module.exports = function() {
-
-	// Occupy the global variable of Chart, and create a simple base class
-	var Chart = function(item, config) {
-		this.construct(item, config);
-		return this;
-	};
-
-	Chart.Chart = Chart;
-
-	return Chart;
-};
-
-},{"26":26}],31:[function(require,module,exports){
-'use strict';
-
-var helpers = require(46);
-
 function filterByPosition(array, position) {
-	return helpers.where(array, function(v) {
+	return helpers$1.where(array, function(v) {
 		return v.position === position;
 	});
 }
@@ -6298,27 +6156,66 @@ function sortByWeight(array, reverse) {
 	});
 }
 
+function findMaxPadding(boxes) {
+	var top = 0;
+	var left = 0;
+	var bottom = 0;
+	var right = 0;
+	helpers$1.each(boxes, function(box) {
+		if (box.getPadding) {
+			var boxPadding = box.getPadding();
+			top = Math.max(top, boxPadding.top);
+			left = Math.max(left, boxPadding.left);
+			bottom = Math.max(bottom, boxPadding.bottom);
+			right = Math.max(right, boxPadding.right);
+		}
+	});
+	return {
+		top: top,
+		left: left,
+		bottom: bottom,
+		right: right
+	};
+}
+
+function addSizeByPosition(boxes, size) {
+	helpers$1.each(boxes, function(box) {
+		size[box.position] += box.isHorizontal() ? box.height : box.width;
+	});
+}
+
+core_defaults._set('global', {
+	layout: {
+		padding: {
+			top: 0,
+			right: 0,
+			bottom: 0,
+			left: 0
+		}
+	}
+});
+
 /**
  * @interface ILayoutItem
- * @prop {String} position - The position of the item in the chart layout. Possible values are
+ * @prop {string} position - The position of the item in the chart layout. Possible values are
  * 'left', 'top', 'right', 'bottom', and 'chartArea'
- * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area
- * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
- * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
- * @prop {Function} update - Takes two parameters: width and height. Returns size of item
- * @prop {Function} getPadding -  Returns an object with padding on the edges
- * @prop {Number} width - Width of item. Must be valid after update()
- * @prop {Number} height - Height of item. Must be valid after update()
- * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update
- * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update
- * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update
- * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} weight - The weight used to sort the item. Higher weights are further away from the chart area
+ * @prop {boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
+ * @prop {function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
+ * @prop {function} update - Takes two parameters: width and height. Returns size of item
+ * @prop {function} getPadding -  Returns an object with padding on the edges
+ * @prop {number} width - Width of item. Must be valid after update()
+ * @prop {number} height - Height of item. Must be valid after update()
+ * @prop {number} left - Left edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} top - Top edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} right - Right edge of the item. Set by layout system and cannot be used in update
+ * @prop {number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
  */
 
 // The layout service is very self explanatory.  It's responsible for the layout within a chart.
 // Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
 // It is this service's responsibility of carrying out that layout.
-module.exports = {
+var core_layouts = {
 	defaults: {},
 
 	/**
@@ -6343,7 +6240,7 @@ module.exports = {
 	/**
 	 * Remove a layoutItem from a chart
 	 * @param {Chart} chart - the chart to remove the box from
-	 * @param {Object} layoutItem - the item to remove from the layout
+	 * @param {ILayoutItem} layoutItem - the item to remove from the layout
 	 */
 	removeBox: function(chart, layoutItem) {
 		var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
@@ -6355,8 +6252,8 @@ module.exports = {
 	/**
 	 * Sets (or updates) options on the given `item`.
 	 * @param {Chart} chart - the chart in which the item lives (or will be added to)
-	 * @param {Object} item - the item to configure with the given options
-	 * @param {Object} options - the new item options.
+	 * @param {ILayoutItem} item - the item to configure with the given options
+	 * @param {object} options - the new item options.
 	 */
 	configure: function(chart, item, options) {
 		var props = ['fullWidth', 'position', 'weight'];
@@ -6376,8 +6273,8 @@ module.exports = {
 	 * Fits boxes of the given chart into the given size by having each box measure itself
 	 * then running a fitting algorithm
 	 * @param {Chart} chart - the chart
-	 * @param {Number} width - the width to fit into
-	 * @param {Number} height - the height to fit into
+	 * @param {number} width - the width to fit into
+	 * @param {number} height - the height to fit into
 	 */
 	update: function(chart, width, height) {
 		if (!chart) {
@@ -6385,7 +6282,7 @@ module.exports = {
 		}
 
 		var layoutOptions = chart.options.layout || {};
-		var padding = helpers.options.toPadding(layoutOptions.padding);
+		var padding = helpers$1.options.toPadding(layoutOptions.padding);
 		var leftPadding = padding.left;
 		var rightPadding = padding.right;
 		var topPadding = padding.top;
@@ -6403,6 +6300,10 @@ module.exports = {
 		sortByWeight(topBoxes, true);
 		sortByWeight(bottomBoxes, false);
 
+		var verticalBoxes = leftBoxes.concat(rightBoxes);
+		var horizontalBoxes = topBoxes.concat(bottomBoxes);
+		var outerBoxes = verticalBoxes.concat(horizontalBoxes);
+
 		// Essentially we now have any number of boxes on each of the 4 sides.
 		// Our canvas looks like the following.
 		// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
@@ -6444,25 +6345,27 @@ module.exports = {
 		var chartWidth = width - leftPadding - rightPadding;
 		var chartHeight = height - topPadding - bottomPadding;
 		var chartAreaWidth = chartWidth / 2; // min 50%
-		var chartAreaHeight = chartHeight / 2; // min 50%
 
 		// Step 2
-		var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);
+		var verticalBoxWidth = (width - chartAreaWidth) / verticalBoxes.length;
 
 		// Step 3
-		var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);
+		// TODO re-limit horizontal axis height (this limit has affected only padding calculation since PR 1837)
+		// var horizontalBoxHeight = (height - chartAreaHeight) / horizontalBoxes.length;
 
 		// Step 4
 		var maxChartAreaWidth = chartWidth;
 		var maxChartAreaHeight = chartHeight;
+		var outerBoxSizes = {top: topPadding, left: leftPadding, bottom: bottomPadding, right: rightPadding};
 		var minBoxSizes = [];
+		var maxPadding;
 
 		function getMinimumBoxSize(box) {
 			var minSize;
 			var isHorizontal = box.isHorizontal();
 
 			if (isHorizontal) {
-				minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
+				minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2);
 				maxChartAreaHeight -= minSize.height;
 			} else {
 				minSize = box.update(verticalBoxWidth, maxChartAreaHeight);
@@ -6471,54 +6374,31 @@ module.exports = {
 
 			minBoxSizes.push({
 				horizontal: isHorizontal,
-				minSize: minSize,
+				width: minSize.width,
 				box: box,
 			});
 		}
 
-		helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);
+		helpers$1.each(outerBoxes, getMinimumBoxSize);
 
 		// If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
-		var maxHorizontalLeftPadding = 0;
-		var maxHorizontalRightPadding = 0;
-		var maxVerticalTopPadding = 0;
-		var maxVerticalBottomPadding = 0;
-
-		helpers.each(topBoxes.concat(bottomBoxes), function(horizontalBox) {
-			if (horizontalBox.getPadding) {
-				var boxPadding = horizontalBox.getPadding();
-				maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left);
-				maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right);
-			}
-		});
-
-		helpers.each(leftBoxes.concat(rightBoxes), function(verticalBox) {
-			if (verticalBox.getPadding) {
-				var boxPadding = verticalBox.getPadding();
-				maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top);
-				maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom);
-			}
-		});
+		maxPadding = findMaxPadding(outerBoxes);
 
 		// At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
 		// be if the axes are drawn at their minimum sizes.
 		// Steps 5 & 6
-		var totalLeftBoxesWidth = leftPadding;
-		var totalRightBoxesWidth = rightPadding;
-		var totalTopBoxesHeight = topPadding;
-		var totalBottomBoxesHeight = bottomPadding;
 
 		// Function to fit a box
 		function fitBox(box) {
-			var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBox) {
+			var minBoxSize = helpers$1.findNextWhere(minBoxSizes, function(minBox) {
 				return minBox.box === box;
 			});
 
 			if (minBoxSize) {
-				if (box.isHorizontal()) {
+				if (minBoxSize.horizontal) {
 					var scaleMargin = {
-						left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding),
-						right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding),
+						left: Math.max(outerBoxSizes.left, maxPadding.left),
+						right: Math.max(outerBoxSizes.right, maxPadding.right),
 						top: 0,
 						bottom: 0
 					};
@@ -6527,106 +6407,64 @@ module.exports = {
 					// on the margin. Sometimes they need to increase in size slightly
 					box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
 				} else {
-					box.update(minBoxSize.minSize.width, maxChartAreaHeight);
+					box.update(minBoxSize.width, maxChartAreaHeight);
 				}
 			}
 		}
 
 		// Update, and calculate the left and right margins for the horizontal boxes
-		helpers.each(leftBoxes.concat(rightBoxes), fitBox);
-
-		helpers.each(leftBoxes, function(box) {
-			totalLeftBoxesWidth += box.width;
-		});
-
-		helpers.each(rightBoxes, function(box) {
-			totalRightBoxesWidth += box.width;
-		});
+		helpers$1.each(verticalBoxes, fitBox);
+		addSizeByPosition(verticalBoxes, outerBoxSizes);
 
 		// Set the Left and Right margins for the horizontal boxes
-		helpers.each(topBoxes.concat(bottomBoxes), fitBox);
-
-		// Figure out how much margin is on the top and bottom of the vertical boxes
-		helpers.each(topBoxes, function(box) {
-			totalTopBoxesHeight += box.height;
-		});
-
-		helpers.each(bottomBoxes, function(box) {
-			totalBottomBoxesHeight += box.height;
-		});
+		helpers$1.each(horizontalBoxes, fitBox);
+		addSizeByPosition(horizontalBoxes, outerBoxSizes);
 
 		function finalFitVerticalBox(box) {
-			var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minSize) {
+			var minBoxSize = helpers$1.findNextWhere(minBoxSizes, function(minSize) {
 				return minSize.box === box;
 			});
 
 			var scaleMargin = {
 				left: 0,
 				right: 0,
-				top: totalTopBoxesHeight,
-				bottom: totalBottomBoxesHeight
+				top: outerBoxSizes.top,
+				bottom: outerBoxSizes.bottom
 			};
 
 			if (minBoxSize) {
-				box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
+				box.update(minBoxSize.width, maxChartAreaHeight, scaleMargin);
 			}
 		}
 
 		// Let the left layout know the final margin
-		helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);
+		helpers$1.each(verticalBoxes, finalFitVerticalBox);
 
 		// Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
-		totalLeftBoxesWidth = leftPadding;
-		totalRightBoxesWidth = rightPadding;
-		totalTopBoxesHeight = topPadding;
-		totalBottomBoxesHeight = bottomPadding;
-
-		helpers.each(leftBoxes, function(box) {
-			totalLeftBoxesWidth += box.width;
-		});
-
-		helpers.each(rightBoxes, function(box) {
-			totalRightBoxesWidth += box.width;
-		});
-
-		helpers.each(topBoxes, function(box) {
-			totalTopBoxesHeight += box.height;
-		});
-		helpers.each(bottomBoxes, function(box) {
-			totalBottomBoxesHeight += box.height;
-		});
+		outerBoxSizes = {top: topPadding, left: leftPadding, bottom: bottomPadding, right: rightPadding};
+		addSizeByPosition(outerBoxes, outerBoxSizes);
 
 		// We may be adding some padding to account for rotated x axis labels
-		var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0);
-		totalLeftBoxesWidth += leftPaddingAddition;
-		totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0);
+		var leftPaddingAddition = Math.max(maxPadding.left - outerBoxSizes.left, 0);
+		outerBoxSizes.left += leftPaddingAddition;
+		outerBoxSizes.right += Math.max(maxPadding.right - outerBoxSizes.right, 0);
 
-		var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0);
-		totalTopBoxesHeight += topPaddingAddition;
-		totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0);
+		var topPaddingAddition = Math.max(maxPadding.top - outerBoxSizes.top, 0);
+		outerBoxSizes.top += topPaddingAddition;
+		outerBoxSizes.bottom += Math.max(maxPadding.bottom - outerBoxSizes.bottom, 0);
 
 		// Figure out if our chart area changed. This would occur if the dataset layout label rotation
 		// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
 		// without calling `fit` again
-		var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
-		var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;
+		var newMaxChartAreaHeight = height - outerBoxSizes.top - outerBoxSizes.bottom;
+		var newMaxChartAreaWidth = width - outerBoxSizes.left - outerBoxSizes.right;
 
 		if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
-			helpers.each(leftBoxes, function(box) {
+			helpers$1.each(verticalBoxes, function(box) {
 				box.height = newMaxChartAreaHeight;
 			});
 
-			helpers.each(rightBoxes, function(box) {
-				box.height = newMaxChartAreaHeight;
-			});
-
-			helpers.each(topBoxes, function(box) {
-				if (!box.fullWidth) {
-					box.width = newMaxChartAreaWidth;
-				}
-			});
-
-			helpers.each(bottomBoxes, function(box) {
+			helpers$1.each(horizontalBoxes, function(box) {
 				if (!box.fullWidth) {
 					box.width = newMaxChartAreaWidth;
 				}
@@ -6642,8 +6480,8 @@ module.exports = {
 
 		function placeBox(box) {
 			if (box.isHorizontal()) {
-				box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth;
-				box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth;
+				box.left = box.fullWidth ? leftPadding : outerBoxSizes.left;
+				box.right = box.fullWidth ? width - rightPadding : outerBoxSizes.left + maxChartAreaWidth;
 				box.top = top;
 				box.bottom = top + box.height;
 
@@ -6654,33 +6492,33 @@ module.exports = {
 
 				box.left = left;
 				box.right = left + box.width;
-				box.top = totalTopBoxesHeight;
-				box.bottom = totalTopBoxesHeight + maxChartAreaHeight;
+				box.top = outerBoxSizes.top;
+				box.bottom = outerBoxSizes.top + maxChartAreaHeight;
 
 				// Move to next point
 				left = box.right;
 			}
 		}
 
-		helpers.each(leftBoxes.concat(topBoxes), placeBox);
+		helpers$1.each(leftBoxes.concat(topBoxes), placeBox);
 
 		// Account for chart width and height
 		left += maxChartAreaWidth;
 		top += maxChartAreaHeight;
 
-		helpers.each(rightBoxes, placeBox);
-		helpers.each(bottomBoxes, placeBox);
+		helpers$1.each(rightBoxes, placeBox);
+		helpers$1.each(bottomBoxes, placeBox);
 
 		// Step 8
 		chart.chartArea = {
-			left: totalLeftBoxesWidth,
-			top: totalTopBoxesHeight,
-			right: totalLeftBoxesWidth + maxChartAreaWidth,
-			bottom: totalTopBoxesHeight + maxChartAreaHeight
+			left: outerBoxSizes.left,
+			top: outerBoxSizes.top,
+			right: outerBoxSizes.left + maxChartAreaWidth,
+			bottom: outerBoxSizes.top + maxChartAreaHeight
 		};
 
 		// Step 9
-		helpers.each(chartAreaBoxes, function(box) {
+		helpers$1.each(chartAreaBoxes, function(box) {
 			box.left = chart.chartArea.left;
 			box.top = chart.chartArea.top;
 			box.right = chart.chartArea.right;
@@ -6691,13 +6529,545 @@ module.exports = {
 	}
 };
 
-},{"46":46}],32:[function(require,module,exports){
-'use strict';
+/**
+ * Platform fallback implementation (minimal).
+ * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
+ */
 
-var defaults = require(26);
-var helpers = require(46);
+var platform_basic = {
+	acquireContext: function(item) {
+		if (item && item.canvas) {
+			// Support for any object associated to a canvas (including a context2d)
+			item = item.canvas;
+		}
 
-defaults._set('global', {
+		return item && item.getContext('2d') || null;
+	}
+};
+
+var platform_dom = "/*\n * DOM element rendering detection\n * https://davidwalsh.name/detect-node-insertion\n */\n@keyframes chartjs-render-animation {\n\tfrom { opacity: 0.99; }\n\tto { opacity: 1; }\n}\n\n.chartjs-render-monitor {\n\tanimation: chartjs-render-animation 0.001s;\n}\n\n/*\n * DOM element resizing detection\n * https://github.com/marcj/css-element-queries\n */\n.chartjs-size-monitor,\n.chartjs-size-monitor-expand,\n.chartjs-size-monitor-shrink {\n\tposition: absolute;\n\tdirection: ltr;\n\tleft: 0;\n\ttop: 0;\n\tright: 0;\n\tbottom: 0;\n\toverflow: hidden;\n\tpointer-events: none;\n\tvisibility: hidden;\n\tz-index: -1;\n}\n\n.chartjs-size-monitor-expand > div {\n\tposition: absolute;\n\twidth: 1000000px;\n\theight: 1000000px;\n\tleft: 0;\n\ttop: 0;\n}\n\n.chartjs-size-monitor-shrink > div {\n\tposition: absolute;\n\twidth: 200%;\n\theight: 200%;\n\tleft: 0;\n\ttop: 0;\n}\n";
+
+var platform_dom$1 = /*#__PURE__*/Object.freeze({
+default: platform_dom
+});
+
+function getCjsExportFromNamespace (n) {
+	return n && n.default || n;
+}
+
+var stylesheet = getCjsExportFromNamespace(platform_dom$1);
+
+var EXPANDO_KEY = '$chartjs';
+var CSS_PREFIX = 'chartjs-';
+var CSS_SIZE_MONITOR = CSS_PREFIX + 'size-monitor';
+var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
+var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
+var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];
+
+/**
+ * DOM event types -> Chart.js event types.
+ * Note: only events with different types are mapped.
+ * @see https://developer.mozilla.org/en-US/docs/Web/Events
+ */
+var EVENT_TYPES = {
+	touchstart: 'mousedown',
+	touchmove: 'mousemove',
+	touchend: 'mouseup',
+	pointerenter: 'mouseenter',
+	pointerdown: 'mousedown',
+	pointermove: 'mousemove',
+	pointerup: 'mouseup',
+	pointerleave: 'mouseout',
+	pointerout: 'mouseout'
+};
+
+/**
+ * The "used" size is the final value of a dimension property after all calculations have
+ * been performed. This method uses the computed style of `element` but returns undefined
+ * if the computed style is not expressed in pixels. That can happen in some cases where
+ * `element` has a size relative to its parent and this last one is not yet displayed,
+ * for example because of `display: none` on a parent node.
+ * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
+ * @returns {number} Size in pixels or undefined if unknown.
+ */
+function readUsedSize(element, property) {
+	var value = helpers$1.getStyle(element, property);
+	var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
+	return matches ? Number(matches[1]) : undefined;
+}
+
+/**
+ * Initializes the canvas style and render size without modifying the canvas display size,
+ * since responsiveness is handled by the controller.resize() method. The config is used
+ * to determine the aspect ratio to apply in case no explicit height has been specified.
+ */
+function initCanvas(canvas, config) {
+	var style = canvas.style;
+
+	// NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
+	// returns null or '' if no explicit value has been set to the canvas attribute.
+	var renderHeight = canvas.getAttribute('height');
+	var renderWidth = canvas.getAttribute('width');
+
+	// Chart.js modifies some canvas values that we want to restore on destroy
+	canvas[EXPANDO_KEY] = {
+		initial: {
+			height: renderHeight,
+			width: renderWidth,
+			style: {
+				display: style.display,
+				height: style.height,
+				width: style.width
+			}
+		}
+	};
+
+	// Force canvas to display as block to avoid extra space caused by inline
+	// elements, which would interfere with the responsive resize process.
+	// https://github.com/chartjs/Chart.js/issues/2538
+	style.display = style.display || 'block';
+
+	if (renderWidth === null || renderWidth === '') {
+		var displayWidth = readUsedSize(canvas, 'width');
+		if (displayWidth !== undefined) {
+			canvas.width = displayWidth;
+		}
+	}
+
+	if (renderHeight === null || renderHeight === '') {
+		if (canvas.style.height === '') {
+			// If no explicit render height and style height, let's apply the aspect ratio,
+			// which one can be specified by the user but also by charts as default option
+			// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
+			canvas.height = canvas.width / (config.options.aspectRatio || 2);
+		} else {
+			var displayHeight = readUsedSize(canvas, 'height');
+			if (displayWidth !== undefined) {
+				canvas.height = displayHeight;
+			}
+		}
+	}
+
+	return canvas;
+}
+
+/**
+ * Detects support for options object argument in addEventListener.
+ * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
+ * @private
+ */
+var supportsEventListenerOptions = (function() {
+	var supports = false;
+	try {
+		var options = Object.defineProperty({}, 'passive', {
+			// eslint-disable-next-line getter-return
+			get: function() {
+				supports = true;
+			}
+		});
+		window.addEventListener('e', null, options);
+	} catch (e) {
+		// continue regardless of error
+	}
+	return supports;
+}());
+
+// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
+// https://github.com/chartjs/Chart.js/issues/4287
+var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
+
+function addListener(node, type, listener) {
+	node.addEventListener(type, listener, eventListenerOptions);
+}
+
+function removeListener(node, type, listener) {
+	node.removeEventListener(type, listener, eventListenerOptions);
+}
+
+function createEvent(type, chart, x, y, nativeEvent) {
+	return {
+		type: type,
+		chart: chart,
+		native: nativeEvent || null,
+		x: x !== undefined ? x : null,
+		y: y !== undefined ? y : null,
+	};
+}
+
+function fromNativeEvent(event, chart) {
+	var type = EVENT_TYPES[event.type] || event.type;
+	var pos = helpers$1.getRelativePosition(event, chart);
+	return createEvent(type, chart, pos.x, pos.y, event);
+}
+
+function throttled(fn, thisArg) {
+	var ticking = false;
+	var args = [];
+
+	return function() {
+		args = Array.prototype.slice.call(arguments);
+		thisArg = thisArg || this;
+
+		if (!ticking) {
+			ticking = true;
+			helpers$1.requestAnimFrame.call(window, function() {
+				ticking = false;
+				fn.apply(thisArg, args);
+			});
+		}
+	};
+}
+
+function createDiv(cls) {
+	var el = document.createElement('div');
+	el.className = cls || '';
+	return el;
+}
+
+// Implementation based on https://github.com/marcj/css-element-queries
+function createResizer(handler) {
+	var maxSize = 1000000;
+
+	// NOTE(SB) Don't use innerHTML because it could be considered unsafe.
+	// https://github.com/chartjs/Chart.js/issues/5902
+	var resizer = createDiv(CSS_SIZE_MONITOR);
+	var expand = createDiv(CSS_SIZE_MONITOR + '-expand');
+	var shrink = createDiv(CSS_SIZE_MONITOR + '-shrink');
+
+	expand.appendChild(createDiv());
+	shrink.appendChild(createDiv());
+
+	resizer.appendChild(expand);
+	resizer.appendChild(shrink);
+	resizer._reset = function() {
+		expand.scrollLeft = maxSize;
+		expand.scrollTop = maxSize;
+		shrink.scrollLeft = maxSize;
+		shrink.scrollTop = maxSize;
+	};
+
+	var onScroll = function() {
+		resizer._reset();
+		handler();
+	};
+
+	addListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
+	addListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));
+
+	return resizer;
+}
+
+// https://davidwalsh.name/detect-node-insertion
+function watchForRender(node, handler) {
+	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
+	var proxy = expando.renderProxy = function(e) {
+		if (e.animationName === CSS_RENDER_ANIMATION) {
+			handler();
+		}
+	};
+
+	helpers$1.each(ANIMATION_START_EVENTS, function(type) {
+		addListener(node, type, proxy);
+	});
+
+	// #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
+	// is removed then added back immediately (same animation frame?). Accessing the
+	// `offsetParent` property will force a reflow and re-evaluate the CSS animation.
+	// https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
+	// https://github.com/chartjs/Chart.js/issues/4737
+	expando.reflow = !!node.offsetParent;
+
+	node.classList.add(CSS_RENDER_MONITOR);
+}
+
+function unwatchForRender(node) {
+	var expando = node[EXPANDO_KEY] || {};
+	var proxy = expando.renderProxy;
+
+	if (proxy) {
+		helpers$1.each(ANIMATION_START_EVENTS, function(type) {
+			removeListener(node, type, proxy);
+		});
+
+		delete expando.renderProxy;
+	}
+
+	node.classList.remove(CSS_RENDER_MONITOR);
+}
+
+function addResizeListener(node, listener, chart) {
+	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
+
+	// Let's keep track of this added resizer and thus avoid DOM query when removing it.
+	var resizer = expando.resizer = createResizer(throttled(function() {
+		if (expando.resizer) {
+			var container = chart.options.maintainAspectRatio && node.parentNode;
+			var w = container ? container.clientWidth : 0;
+			listener(createEvent('resize', chart));
+			if (container && container.clientWidth < w && chart.canvas) {
+				// If the container size shrank during chart resize, let's assume
+				// scrollbar appeared. So we resize again with the scrollbar visible -
+				// effectively making chart smaller and the scrollbar hidden again.
+				// Because we are inside `throttled`, and currently `ticking`, scroll
+				// events are ignored during this whole 2 resize process.
+				// If we assumed wrong and something else happened, we are resizing
+				// twice in a frame (potential performance issue)
+				listener(createEvent('resize', chart));
+			}
+		}
+	}));
+
+	// The resizer needs to be attached to the node parent, so we first need to be
+	// sure that `node` is attached to the DOM before injecting the resizer element.
+	watchForRender(node, function() {
+		if (expando.resizer) {
+			var container = node.parentNode;
+			if (container && container !== resizer.parentNode) {
+				container.insertBefore(resizer, container.firstChild);
+			}
+
+			// The container size might have changed, let's reset the resizer state.
+			resizer._reset();
+		}
+	});
+}
+
+function removeResizeListener(node) {
+	var expando = node[EXPANDO_KEY] || {};
+	var resizer = expando.resizer;
+
+	delete expando.resizer;
+	unwatchForRender(node);
+
+	if (resizer && resizer.parentNode) {
+		resizer.parentNode.removeChild(resizer);
+	}
+}
+
+function injectCSS(platform, css) {
+	// https://stackoverflow.com/q/3922139
+	var style = platform._style || document.createElement('style');
+	if (!platform._style) {
+		platform._style = style;
+		css = '/* Chart.js */\n' + css;
+		style.setAttribute('type', 'text/css');
+		document.getElementsByTagName('head')[0].appendChild(style);
+	}
+
+	style.appendChild(document.createTextNode(css));
+}
+
+var platform_dom$2 = {
+	/**
+	 * When `true`, prevents the automatic injection of the stylesheet required to
+	 * correctly detect when the chart is added to the DOM and then resized. This
+	 * switch has been added to allow external stylesheet (`dist/Chart(.min)?.js`)
+	 * to be manually imported to make this library compatible with any CSP.
+	 * See https://github.com/chartjs/Chart.js/issues/5208
+	 */
+	disableCSSInjection: false,
+
+	/**
+	 * This property holds whether this platform is enabled for the current environment.
+	 * Currently used by platform.js to select the proper implementation.
+	 * @private
+	 */
+	_enabled: typeof window !== 'undefined' && typeof document !== 'undefined',
+
+	/**
+	 * @private
+	 */
+	_ensureLoaded: function() {
+		if (this._loaded) {
+			return;
+		}
+
+		this._loaded = true;
+
+		// https://github.com/chartjs/Chart.js/issues/5208
+		if (!this.disableCSSInjection) {
+			injectCSS(this, stylesheet);
+		}
+	},
+
+	acquireContext: function(item, config) {
+		if (typeof item === 'string') {
+			item = document.getElementById(item);
+		} else if (item.length) {
+			// Support for array based queries (such as jQuery)
+			item = item[0];
+		}
+
+		if (item && item.canvas) {
+			// Support for any object associated to a canvas (including a context2d)
+			item = item.canvas;
+		}
+
+		// To prevent canvas fingerprinting, some add-ons undefine the getContext
+		// method, for example: https://github.com/kkapsner/CanvasBlocker
+		// https://github.com/chartjs/Chart.js/issues/2807
+		var context = item && item.getContext && item.getContext('2d');
+
+		// Load platform resources on first chart creation, to make possible to change
+		// platform options after importing the library (e.g. `disableCSSInjection`).
+		this._ensureLoaded();
+
+		// `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
+		// inside an iframe or when running in a protected environment. We could guess the
+		// types from their toString() value but let's keep things flexible and assume it's
+		// a sufficient condition if the item has a context2D which has item as `canvas`.
+		// https://github.com/chartjs/Chart.js/issues/3887
+		// https://github.com/chartjs/Chart.js/issues/4102
+		// https://github.com/chartjs/Chart.js/issues/4152
+		if (context && context.canvas === item) {
+			initCanvas(item, config);
+			return context;
+		}
+
+		return null;
+	},
+
+	releaseContext: function(context) {
+		var canvas = context.canvas;
+		if (!canvas[EXPANDO_KEY]) {
+			return;
+		}
+
+		var initial = canvas[EXPANDO_KEY].initial;
+		['height', 'width'].forEach(function(prop) {
+			var value = initial[prop];
+			if (helpers$1.isNullOrUndef(value)) {
+				canvas.removeAttribute(prop);
+			} else {
+				canvas.setAttribute(prop, value);
+			}
+		});
+
+		helpers$1.each(initial.style || {}, function(value, key) {
+			canvas.style[key] = value;
+		});
+
+		// The canvas render size might have been changed (and thus the state stack discarded),
+		// we can't use save() and restore() to restore the initial state. So make sure that at
+		// least the canvas context is reset to the default state by setting the canvas width.
+		// https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
+		// eslint-disable-next-line no-self-assign
+		canvas.width = canvas.width;
+
+		delete canvas[EXPANDO_KEY];
+	},
+
+	addEventListener: function(chart, type, listener) {
+		var canvas = chart.canvas;
+		if (type === 'resize') {
+			// Note: the resize event is not supported on all browsers.
+			addResizeListener(canvas, listener, chart);
+			return;
+		}
+
+		var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
+		var proxies = expando.proxies || (expando.proxies = {});
+		var proxy = proxies[chart.id + '_' + type] = function(event) {
+			listener(fromNativeEvent(event, chart));
+		};
+
+		addListener(canvas, type, proxy);
+	},
+
+	removeEventListener: function(chart, type, listener) {
+		var canvas = chart.canvas;
+		if (type === 'resize') {
+			// Note: the resize event is not supported on all browsers.
+			removeResizeListener(canvas);
+			return;
+		}
+
+		var expando = listener[EXPANDO_KEY] || {};
+		var proxies = expando.proxies || {};
+		var proxy = proxies[chart.id + '_' + type];
+		if (!proxy) {
+			return;
+		}
+
+		removeListener(canvas, type, proxy);
+	}
+};
+
+// DEPRECATIONS
+
+/**
+ * Provided for backward compatibility, use EventTarget.addEventListener instead.
+ * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
+ * @function Chart.helpers.addEvent
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.addEvent = addListener;
+
+/**
+ * Provided for backward compatibility, use EventTarget.removeEventListener instead.
+ * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
+ * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
+ * @function Chart.helpers.removeEvent
+ * @deprecated since version 2.7.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.removeEvent = removeListener;
+
+// @TODO Make possible to select another platform at build time.
+var implementation = platform_dom$2._enabled ? platform_dom$2 : platform_basic;
+
+/**
+ * @namespace Chart.platform
+ * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
+ * @since 2.4.0
+ */
+var platform = helpers$1.extend({
+	/**
+	 * @since 2.7.0
+	 */
+	initialize: function() {},
+
+	/**
+	 * Called at chart construction time, returns a context2d instance implementing
+	 * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
+	 * @param {*} item - The native item from which to acquire context (platform specific)
+	 * @param {object} options - The chart options
+	 * @returns {CanvasRenderingContext2D} context2d instance
+	 */
+	acquireContext: function() {},
+
+	/**
+	 * Called at chart destruction time, releases any resources associated to the context
+	 * previously returned by the acquireContext() method.
+	 * @param {CanvasRenderingContext2D} context - The context2d instance
+	 * @returns {boolean} true if the method succeeded, else false
+	 */
+	releaseContext: function() {},
+
+	/**
+	 * Registers the specified listener on the given chart.
+	 * @param {Chart} chart - Chart from which to listen for event
+	 * @param {string} type - The ({@link IEvent}) type to listen for
+	 * @param {function} listener - Receives a notification (an object that implements
+	 * the {@link IEvent} interface) when an event of the specified type occurs.
+	 */
+	addEventListener: function() {},
+
+	/**
+	 * Removes the specified listener previously registered with addEventListener.
+	 * @param {Chart} chart - Chart from which to remove the listener
+	 * @param {string} type - The ({@link IEvent}) type to remove
+	 * @param {function} listener - The listener function to remove from the event target.
+	 */
+	removeEventListener: function() {}
+
+}, implementation);
+
+core_defaults._set('global', {
 	plugins: {}
 });
 
@@ -6706,7 +7076,7 @@ defaults._set('global', {
  * @namespace Chart.plugins
  * @since 2.1.0
  */
-module.exports = {
+var core_plugins = {
 	/**
 	 * Globally registered plugins.
 	 * @private
@@ -6723,7 +7093,7 @@ module.exports = {
 
 	/**
 	 * Registers the given plugin(s) if not already registered.
-	 * @param {Array|Object} plugins plugin instance(s).
+	 * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
 	 */
 	register: function(plugins) {
 		var p = this._plugins;
@@ -6738,7 +7108,7 @@ module.exports = {
 
 	/**
 	 * Unregisters the given plugin(s) only if registered.
-	 * @param {Array|Object} plugins plugin instance(s).
+	 * @param {IPlugin[]|IPlugin} plugins plugin instance(s).
 	 */
 	unregister: function(plugins) {
 		var p = this._plugins;
@@ -6763,7 +7133,7 @@ module.exports = {
 
 	/**
 	 * Returns the number of registered plugins?
-	 * @returns {Number}
+	 * @returns {number}
 	 * @since 2.1.5
 	 */
 	count: function() {
@@ -6772,7 +7142,7 @@ module.exports = {
 
 	/**
 	 * Returns all registered plugin instances.
-	 * @returns {Array} array of plugin objects.
+	 * @returns {IPlugin[]} array of plugin objects.
 	 * @since 2.1.5
 	 */
 	getAll: function() {
@@ -6783,10 +7153,10 @@ module.exports = {
 	 * Calls enabled plugins for `chart` on the specified hook and with the given args.
 	 * This method immediately returns as soon as a plugin explicitly returns false. The
 	 * returned value can be used, for instance, to interrupt the current action.
-	 * @param {Object} chart - The chart instance for which plugins should be called.
-	 * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
+	 * @param {Chart} chart - The chart instance for which plugins should be called.
+	 * @param {string} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
 	 * @param {Array} [args] - Extra arguments to apply to the hook call.
-	 * @returns {Boolean} false if any of the plugins return false, else returns true.
+	 * @returns {boolean} false if any of the plugins return false, else returns true.
 	 */
 	notify: function(chart, hook, args) {
 		var descriptors = this.descriptors(chart);
@@ -6811,7 +7181,7 @@ module.exports = {
 
 	/**
 	 * Returns descriptors of enabled plugins for the given chart.
-	 * @returns {Array} [{ plugin, options }]
+	 * @returns {object[]} [{ plugin, options }]
 	 * @private
 	 */
 	descriptors: function(chart) {
@@ -6838,7 +7208,7 @@ module.exports = {
 			}
 
 			if (opts === true) {
-				opts = helpers.clone(defaults.global.plugins[id]);
+				opts = helpers$1.clone(core_defaults.global.plugins[id]);
 			}
 
 			plugins.push(plugin);
@@ -6864,1161 +7234,7 @@ module.exports = {
 	}
 };
 
-/**
- * Plugin extension hooks.
- * @interface IPlugin
- * @since 2.1.0
- */
-/**
- * @method IPlugin#beforeInit
- * @desc Called before initializing `chart`.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#afterInit
- * @desc Called after `chart` has been initialized and before the first update.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeUpdate
- * @desc Called before updating `chart`. If any plugin returns `false`, the update
- * is cancelled (and thus subsequent render(s)) until another `update` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart update.
- */
-/**
- * @method IPlugin#afterUpdate
- * @desc Called after `chart` has been updated and before rendering. Note that this
- * hook will not be called if the chart update has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeDatasetsUpdate
- * @desc Called before updating the `chart` datasets. If any plugin returns `false`,
- * the datasets update is cancelled until another `update` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} false to cancel the datasets update.
- * @since version 2.1.5
-*/
-/**
- * @method IPlugin#afterDatasetsUpdate
- * @desc Called after the `chart` datasets have been updated. Note that this hook
- * will not be called if the datasets update has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- * @since version 2.1.5
- */
-/**
- * @method IPlugin#beforeDatasetUpdate
- * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin
- * returns `false`, the datasets update is cancelled until another `update` is triggered.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Number} args.index - The dataset index.
- * @param {Object} args.meta - The dataset metadata.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart datasets drawing.
- */
-/**
- * @method IPlugin#afterDatasetUpdate
- * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note
- * that this hook will not be called if the datasets update has been previously cancelled.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Number} args.index - The dataset index.
- * @param {Object} args.meta - The dataset metadata.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeLayout
- * @desc Called before laying out `chart`. If any plugin returns `false`,
- * the layout update is cancelled until another `update` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart layout.
- */
-/**
- * @method IPlugin#afterLayout
- * @desc Called after the `chart` has been layed out. Note that this hook will not
- * be called if the layout update has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeRender
- * @desc Called before rendering `chart`. If any plugin returns `false`,
- * the rendering is cancelled until another `render` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart rendering.
- */
-/**
- * @method IPlugin#afterRender
- * @desc Called after the `chart` has been fully rendered (and animation completed). Note
- * that this hook will not be called if the rendering has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeDraw
- * @desc Called before drawing `chart` at every animation frame specified by the given
- * easing value. If any plugin returns `false`, the frame drawing is cancelled until
- * another `render` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart drawing.
- */
-/**
- * @method IPlugin#afterDraw
- * @desc Called after the `chart` has been drawn for the specific easing value. Note
- * that this hook will not be called if the drawing has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeDatasetsDraw
- * @desc Called before drawing the `chart` datasets. If any plugin returns `false`,
- * the datasets drawing is cancelled until another `render` is triggered.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart datasets drawing.
- */
-/**
- * @method IPlugin#afterDatasetsDraw
- * @desc Called after the `chart` datasets have been drawn. Note that this hook
- * will not be called if the datasets drawing has been previously cancelled.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeDatasetDraw
- * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets
- * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing
- * is cancelled until another `render` is triggered.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Number} args.index - The dataset index.
- * @param {Object} args.meta - The dataset metadata.
- * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart datasets drawing.
- */
-/**
- * @method IPlugin#afterDatasetDraw
- * @desc Called after the `chart` datasets at the given `args.index` have been drawn
- * (datasets are drawn in the reverse order). Note that this hook will not be called
- * if the datasets drawing has been previously cancelled.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Number} args.index - The dataset index.
- * @param {Object} args.meta - The dataset metadata.
- * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeTooltipDraw
- * @desc Called before drawing the `tooltip`. If any plugin returns `false`,
- * the tooltip drawing is cancelled until another `render` is triggered.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Object} args.tooltip - The tooltip.
- * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- * @returns {Boolean} `false` to cancel the chart tooltip drawing.
- */
-/**
- * @method IPlugin#afterTooltipDraw
- * @desc Called after drawing the `tooltip`. Note that this hook will not
- * be called if the tooltip drawing has been previously cancelled.
- * @param {Chart} chart - The chart instance.
- * @param {Object} args - The call arguments.
- * @param {Object} args.tooltip - The tooltip.
- * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#beforeEvent
- * @desc Called before processing the specified `event`. If any plugin returns `false`,
- * the event will be discarded.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {IEvent} event - The event object.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#afterEvent
- * @desc Called after the `event` has been consumed. Note that this hook
- * will not be called if the `event` has been previously discarded.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {IEvent} event - The event object.
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#resize
- * @desc Called after the chart as been resized.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Number} size - The new canvas display size (eq. canvas.style width & height).
- * @param {Object} options - The plugin options.
- */
-/**
- * @method IPlugin#destroy
- * @desc Called after the chart as been destroyed.
- * @param {Chart.Controller} chart - The chart instance.
- * @param {Object} options - The plugin options.
- */
-
-},{"26":26,"46":46}],33:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
-var Ticks = require(35);
-
-defaults._set('scale', {
-	display: true,
-	position: 'left',
-	offset: false,
-
-	// grid line settings
-	gridLines: {
-		display: true,
-		color: 'rgba(0, 0, 0, 0.1)',
-		lineWidth: 1,
-		drawBorder: true,
-		drawOnChartArea: true,
-		drawTicks: true,
-		tickMarkLength: 10,
-		zeroLineWidth: 1,
-		zeroLineColor: 'rgba(0,0,0,0.25)',
-		zeroLineBorderDash: [],
-		zeroLineBorderDashOffset: 0.0,
-		offsetGridLines: false,
-		borderDash: [],
-		borderDashOffset: 0.0
-	},
-
-	// scale label
-	scaleLabel: {
-		// display property
-		display: false,
-
-		// actual label
-		labelString: '',
-
-		// line height
-		lineHeight: 1.2,
-
-		// top/bottom padding
-		padding: {
-			top: 4,
-			bottom: 4
-		}
-	},
-
-	// label settings
-	ticks: {
-		beginAtZero: false,
-		minRotation: 0,
-		maxRotation: 50,
-		mirror: false,
-		padding: 0,
-		reverse: false,
-		display: true,
-		autoSkip: true,
-		autoSkipPadding: 0,
-		labelOffset: 0,
-		// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
-		callback: Ticks.formatters.values,
-		minor: {},
-		major: {}
-	}
-});
-
-function labelsFromTicks(ticks) {
-	var labels = [];
-	var i, ilen;
-
-	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
-		labels.push(ticks[i].label);
-	}
-
-	return labels;
-}
-
-function getLineValue(scale, index, offsetGridLines) {
-	var lineValue = scale.getPixelForTick(index);
-
-	if (offsetGridLines) {
-		if (index === 0) {
-			lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
-		} else {
-			lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
-		}
-	}
-	return lineValue;
-}
-
-function computeTextSize(context, tick, font) {
-	return helpers.isArray(tick) ?
-		helpers.longestText(context, font, tick) :
-		context.measureText(tick).width;
-}
-
-function parseFontOptions(options) {
-	var valueOrDefault = helpers.valueOrDefault;
-	var globalDefaults = defaults.global;
-	var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
-	var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle);
-	var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily);
-
-	return {
-		size: size,
-		style: style,
-		family: family,
-		font: helpers.fontString(size, style, family)
-	};
-}
-
-function parseLineHeight(options) {
-	return helpers.options.toLineHeight(
-		helpers.valueOrDefault(options.lineHeight, 1.2),
-		helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize));
-}
-
-module.exports = Element.extend({
-	/**
-	 * Get the padding needed for the scale
-	 * @method getPadding
-	 * @private
-	 * @returns {Padding} the necessary padding
-	 */
-	getPadding: function() {
-		var me = this;
-		return {
-			left: me.paddingLeft || 0,
-			top: me.paddingTop || 0,
-			right: me.paddingRight || 0,
-			bottom: me.paddingBottom || 0
-		};
-	},
-
-	/**
-	 * Returns the scale tick objects ({label, major})
-	 * @since 2.7
-	 */
-	getTicks: function() {
-		return this._ticks;
-	},
-
-	// These methods are ordered by lifecyle. Utilities then follow.
-	// Any function defined here is inherited by all scale types.
-	// Any function can be extended by the scale type
-
-	mergeTicksOptions: function() {
-		var ticks = this.options.ticks;
-		if (ticks.minor === false) {
-			ticks.minor = {
-				display: false
-			};
-		}
-		if (ticks.major === false) {
-			ticks.major = {
-				display: false
-			};
-		}
-		for (var key in ticks) {
-			if (key !== 'major' && key !== 'minor') {
-				if (typeof ticks.minor[key] === 'undefined') {
-					ticks.minor[key] = ticks[key];
-				}
-				if (typeof ticks.major[key] === 'undefined') {
-					ticks.major[key] = ticks[key];
-				}
-			}
-		}
-	},
-	beforeUpdate: function() {
-		helpers.callback(this.options.beforeUpdate, [this]);
-	},
-
-	update: function(maxWidth, maxHeight, margins) {
-		var me = this;
-		var i, ilen, labels, label, ticks, tick;
-
-		// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
-		me.beforeUpdate();
-
-		// Absorb the master measurements
-		me.maxWidth = maxWidth;
-		me.maxHeight = maxHeight;
-		me.margins = helpers.extend({
-			left: 0,
-			right: 0,
-			top: 0,
-			bottom: 0
-		}, margins);
-		me.longestTextCache = me.longestTextCache || {};
-
-		// Dimensions
-		me.beforeSetDimensions();
-		me.setDimensions();
-		me.afterSetDimensions();
-
-		// Data min/max
-		me.beforeDataLimits();
-		me.determineDataLimits();
-		me.afterDataLimits();
-
-		// Ticks - `this.ticks` is now DEPRECATED!
-		// Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
-		// and must not be accessed directly from outside this class. `this.ticks` being
-		// around for long time and not marked as private, we can't change its structure
-		// without unexpected breaking changes. If you need to access the scale ticks,
-		// use scale.getTicks() instead.
-
-		me.beforeBuildTicks();
-
-		// New implementations should return an array of objects but for BACKWARD COMPAT,
-		// we still support no return (`this.ticks` internally set by calling this method).
-		ticks = me.buildTicks() || [];
-
-		me.afterBuildTicks();
-
-		me.beforeTickToLabelConversion();
-
-		// New implementations should return the formatted tick labels but for BACKWARD
-		// COMPAT, we still support no return (`this.ticks` internally changed by calling
-		// this method and supposed to contain only string values).
-		labels = me.convertTicksToLabels(ticks) || me.ticks;
-
-		me.afterTickToLabelConversion();
-
-		me.ticks = labels;   // BACKWARD COMPATIBILITY
-
-		// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!
-
-		// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
-		for (i = 0, ilen = labels.length; i < ilen; ++i) {
-			label = labels[i];
-			tick = ticks[i];
-			if (!tick) {
-				ticks.push(tick = {
-					label: label,
-					major: false
-				});
-			} else {
-				tick.label = label;
-			}
-		}
-
-		me._ticks = ticks;
-
-		// Tick Rotation
-		me.beforeCalculateTickRotation();
-		me.calculateTickRotation();
-		me.afterCalculateTickRotation();
-		// Fit
-		me.beforeFit();
-		me.fit();
-		me.afterFit();
-		//
-		me.afterUpdate();
-
-		return me.minSize;
-
-	},
-	afterUpdate: function() {
-		helpers.callback(this.options.afterUpdate, [this]);
-	},
-
-	//
-
-	beforeSetDimensions: function() {
-		helpers.callback(this.options.beforeSetDimensions, [this]);
-	},
-	setDimensions: function() {
-		var me = this;
-		// Set the unconstrained dimension before label rotation
-		if (me.isHorizontal()) {
-			// Reset position before calculating rotation
-			me.width = me.maxWidth;
-			me.left = 0;
-			me.right = me.width;
-		} else {
-			me.height = me.maxHeight;
-
-			// Reset position before calculating rotation
-			me.top = 0;
-			me.bottom = me.height;
-		}
-
-		// Reset padding
-		me.paddingLeft = 0;
-		me.paddingTop = 0;
-		me.paddingRight = 0;
-		me.paddingBottom = 0;
-	},
-	afterSetDimensions: function() {
-		helpers.callback(this.options.afterSetDimensions, [this]);
-	},
-
-	// Data limits
-	beforeDataLimits: function() {
-		helpers.callback(this.options.beforeDataLimits, [this]);
-	},
-	determineDataLimits: helpers.noop,
-	afterDataLimits: function() {
-		helpers.callback(this.options.afterDataLimits, [this]);
-	},
-
-	//
-	beforeBuildTicks: function() {
-		helpers.callback(this.options.beforeBuildTicks, [this]);
-	},
-	buildTicks: helpers.noop,
-	afterBuildTicks: function() {
-		helpers.callback(this.options.afterBuildTicks, [this]);
-	},
-
-	beforeTickToLabelConversion: function() {
-		helpers.callback(this.options.beforeTickToLabelConversion, [this]);
-	},
-	convertTicksToLabels: function() {
-		var me = this;
-		// Convert ticks to strings
-		var tickOpts = me.options.ticks;
-		me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
-	},
-	afterTickToLabelConversion: function() {
-		helpers.callback(this.options.afterTickToLabelConversion, [this]);
-	},
-
-	//
-
-	beforeCalculateTickRotation: function() {
-		helpers.callback(this.options.beforeCalculateTickRotation, [this]);
-	},
-	calculateTickRotation: function() {
-		var me = this;
-		var context = me.ctx;
-		var tickOpts = me.options.ticks;
-		var labels = labelsFromTicks(me._ticks);
-
-		// Get the width of each grid by calculating the difference
-		// between x offsets between 0 and 1.
-		var tickFont = parseFontOptions(tickOpts);
-		context.font = tickFont.font;
-
-		var labelRotation = tickOpts.minRotation || 0;
-
-		if (labels.length && me.options.display && me.isHorizontal()) {
-			var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache);
-			var labelWidth = originalLabelWidth;
-			var cosRotation, sinRotation;
-
-			// Allow 3 pixels x2 padding either side for label readability
-			var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;
-
-			// Max label rotation can be set or default to 90 - also act as a loop counter
-			while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
-				var angleRadians = helpers.toRadians(labelRotation);
-				cosRotation = Math.cos(angleRadians);
-				sinRotation = Math.sin(angleRadians);
-
-				if (sinRotation * originalLabelWidth > me.maxHeight) {
-					// go back one step
-					labelRotation--;
-					break;
-				}
-
-				labelRotation++;
-				labelWidth = cosRotation * originalLabelWidth;
-			}
-		}
-
-		me.labelRotation = labelRotation;
-	},
-	afterCalculateTickRotation: function() {
-		helpers.callback(this.options.afterCalculateTickRotation, [this]);
-	},
-
-	//
-
-	beforeFit: function() {
-		helpers.callback(this.options.beforeFit, [this]);
-	},
-	fit: function() {
-		var me = this;
-		// Reset
-		var minSize = me.minSize = {
-			width: 0,
-			height: 0
-		};
-
-		var labels = labelsFromTicks(me._ticks);
-
-		var opts = me.options;
-		var tickOpts = opts.ticks;
-		var scaleLabelOpts = opts.scaleLabel;
-		var gridLineOpts = opts.gridLines;
-		var display = opts.display;
-		var isHorizontal = me.isHorizontal();
-
-		var tickFont = parseFontOptions(tickOpts);
-		var tickMarkLength = opts.gridLines.tickMarkLength;
-
-		// Width
-		if (isHorizontal) {
-			// subtract the margins to line up with the chartArea if we are a full width scale
-			minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
-		} else {
-			minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
-		}
-
-		// height
-		if (isHorizontal) {
-			minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
-		} else {
-			minSize.height = me.maxHeight; // fill all the height
-		}
-
-		// Are we showing a title for the scale?
-		if (scaleLabelOpts.display && display) {
-			var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts);
-			var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding);
-			var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height;
-
-			if (isHorizontal) {
-				minSize.height += deltaHeight;
-			} else {
-				minSize.width += deltaHeight;
-			}
-		}
-
-		// Don't bother fitting the ticks if we are not showing them
-		if (tickOpts.display && display) {
-			var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache);
-			var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels);
-			var lineSpace = tickFont.size * 0.5;
-			var tickPadding = me.options.ticks.padding;
-
-			if (isHorizontal) {
-				// A horizontal axis is more constrained by the height.
-				me.longestLabelWidth = largestTextWidth;
-
-				var angleRadians = helpers.toRadians(me.labelRotation);
-				var cosRotation = Math.cos(angleRadians);
-				var sinRotation = Math.sin(angleRadians);
-
-				// TODO - improve this calculation
-				var labelHeight = (sinRotation * largestTextWidth)
-					+ (tickFont.size * tallestLabelHeightInLines)
-					+ (lineSpace * (tallestLabelHeightInLines - 1))
-					+ lineSpace; // padding
-
-				minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
-
-				me.ctx.font = tickFont.font;
-				var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font);
-				var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font);
-
-				// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
-				// which means that the right padding is dominated by the font height
-				if (me.labelRotation !== 0) {
-					me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges
-					me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3;
-				} else {
-					me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
-					me.paddingRight = lastLabelWidth / 2 + 3;
-				}
-			} else {
-				// A vertical axis is more constrained by the width. Labels are the
-				// dominant factor here, so get that length first and account for padding
-				if (tickOpts.mirror) {
-					largestTextWidth = 0;
-				} else {
-					// use lineSpace for consistency with horizontal axis
-					// tickPadding is not implemented for horizontal
-					largestTextWidth += tickPadding + lineSpace;
-				}
-
-				minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);
-
-				me.paddingTop = tickFont.size / 2;
-				me.paddingBottom = tickFont.size / 2;
-			}
-		}
-
-		me.handleMargins();
-
-		me.width = minSize.width;
-		me.height = minSize.height;
-	},
-
-	/**
-	 * Handle margins and padding interactions
-	 * @private
-	 */
-	handleMargins: function() {
-		var me = this;
-		if (me.margins) {
-			me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
-			me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
-			me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
-			me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
-		}
-	},
-
-	afterFit: function() {
-		helpers.callback(this.options.afterFit, [this]);
-	},
-
-	// Shared Methods
-	isHorizontal: function() {
-		return this.options.position === 'top' || this.options.position === 'bottom';
-	},
-	isFullWidth: function() {
-		return (this.options.fullWidth);
-	},
-
-	// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
-	getRightValue: function(rawValue) {
-		// Null and undefined values first
-		if (helpers.isNullOrUndef(rawValue)) {
-			return NaN;
-		}
-		// isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
-		if (typeof rawValue === 'number' && !isFinite(rawValue)) {
-			return NaN;
-		}
-		// If it is in fact an object, dive in one more level
-		if (rawValue) {
-			if (this.isHorizontal()) {
-				if (rawValue.x !== undefined) {
-					return this.getRightValue(rawValue.x);
-				}
-			} else if (rawValue.y !== undefined) {
-				return this.getRightValue(rawValue.y);
-			}
-		}
-
-		// Value is good, return it
-		return rawValue;
-	},
-
-	/**
-	 * Used to get the value to display in the tooltip for the data at the given index
-	 * @param index
-	 * @param datasetIndex
-	 */
-	getLabelForIndex: helpers.noop,
-
-	/**
-	 * Returns the location of the given data point. Value can either be an index or a numerical value
-	 * The coordinate (0, 0) is at the upper-left corner of the canvas
-	 * @param value
-	 * @param index
-	 * @param datasetIndex
-	 */
-	getPixelForValue: helpers.noop,
-
-	/**
-	 * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
-	 * The coordinate (0, 0) is at the upper-left corner of the canvas
-	 * @param pixel
-	 */
-	getValueForPixel: helpers.noop,
-
-	/**
-	 * Returns the location of the tick at the given index
-	 * The coordinate (0, 0) is at the upper-left corner of the canvas
-	 */
-	getPixelForTick: function(index) {
-		var me = this;
-		var offset = me.options.offset;
-		if (me.isHorizontal()) {
-			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
-			var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
-			var pixel = (tickWidth * index) + me.paddingLeft;
-
-			if (offset) {
-				pixel += tickWidth / 2;
-			}
-
-			var finalVal = me.left + Math.round(pixel);
-			finalVal += me.isFullWidth() ? me.margins.left : 0;
-			return finalVal;
-		}
-		var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
-		return me.top + (index * (innerHeight / (me._ticks.length - 1)));
-	},
-
-	/**
-	 * Utility for getting the pixel location of a percentage of scale
-	 * The coordinate (0, 0) is at the upper-left corner of the canvas
-	 */
-	getPixelForDecimal: function(decimal) {
-		var me = this;
-		if (me.isHorizontal()) {
-			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
-			var valueOffset = (innerWidth * decimal) + me.paddingLeft;
-
-			var finalVal = me.left + Math.round(valueOffset);
-			finalVal += me.isFullWidth() ? me.margins.left : 0;
-			return finalVal;
-		}
-		return me.top + (decimal * me.height);
-	},
-
-	/**
-	 * Returns the pixel for the minimum chart value
-	 * The coordinate (0, 0) is at the upper-left corner of the canvas
-	 */
-	getBasePixel: function() {
-		return this.getPixelForValue(this.getBaseValue());
-	},
-
-	getBaseValue: function() {
-		var me = this;
-		var min = me.min;
-		var max = me.max;
-
-		return me.beginAtZero ? 0 :
-			min < 0 && max < 0 ? max :
-			min > 0 && max > 0 ? min :
-			0;
-	},
-
-	/**
-	 * Returns a subset of ticks to be plotted to avoid overlapping labels.
-	 * @private
-	 */
-	_autoSkip: function(ticks) {
-		var skipRatio;
-		var me = this;
-		var isHorizontal = me.isHorizontal();
-		var optionTicks = me.options.ticks.minor;
-		var tickCount = ticks.length;
-		var labelRotationRadians = helpers.toRadians(me.labelRotation);
-		var cosRotation = Math.cos(labelRotationRadians);
-		var longestRotatedLabel = me.longestLabelWidth * cosRotation;
-		var result = [];
-		var i, tick, shouldSkip;
-
-		// figure out the maximum number of gridlines to show
-		var maxTicks;
-		if (optionTicks.maxTicksLimit) {
-			maxTicks = optionTicks.maxTicksLimit;
-		}
-
-		if (isHorizontal) {
-			skipRatio = false;
-
-			if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) {
-				skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight)));
-			}
-
-			// if they defined a max number of optionTicks,
-			// increase skipRatio until that number is met
-			if (maxTicks && tickCount > maxTicks) {
-				skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks));
-			}
-		}
-
-		for (i = 0; i < tickCount; i++) {
-			tick = ticks[i];
-
-			// Since we always show the last tick,we need may need to hide the last shown one before
-			shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount);
-			if (shouldSkip && i !== tickCount - 1) {
-				// leave tick in place but make sure it's not displayed (#4635)
-				delete tick.label;
-			}
-			result.push(tick);
-		}
-		return result;
-	},
-
-	// Actually draw the scale on the canvas
-	// @param {rectangle} chartArea : the area of the chart to draw full grid lines on
-	draw: function(chartArea) {
-		var me = this;
-		var options = me.options;
-		if (!options.display) {
-			return;
-		}
-
-		var context = me.ctx;
-		var globalDefaults = defaults.global;
-		var optionTicks = options.ticks.minor;
-		var optionMajorTicks = options.ticks.major || optionTicks;
-		var gridLines = options.gridLines;
-		var scaleLabel = options.scaleLabel;
-
-		var isRotated = me.labelRotation !== 0;
-		var isHorizontal = me.isHorizontal();
-
-		var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
-		var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
-		var tickFont = parseFontOptions(optionTicks);
-		var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor);
-		var majorTickFont = parseFontOptions(optionMajorTicks);
-
-		var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;
-
-		var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
-		var scaleLabelFont = parseFontOptions(scaleLabel);
-		var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding);
-		var labelRotationRadians = helpers.toRadians(me.labelRotation);
-
-		var itemsToDraw = [];
-
-		var axisWidth = me.options.gridLines.lineWidth;
-		var xTickStart = options.position === 'right' ? me.left : me.right - axisWidth - tl;
-		var xTickEnd = options.position === 'right' ? me.left + tl : me.right;
-		var yTickStart = options.position === 'bottom' ? me.top + axisWidth : me.bottom - tl - axisWidth;
-		var yTickEnd = options.position === 'bottom' ? me.top + axisWidth + tl : me.bottom + axisWidth;
-
-		helpers.each(ticks, function(tick, index) {
-			// autoskipper skipped this tick (#4635)
-			if (helpers.isNullOrUndef(tick.label)) {
-				return;
-			}
-
-			var label = tick.label;
-			var lineWidth, lineColor, borderDash, borderDashOffset;
-			if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
-				// Draw the first index specially
-				lineWidth = gridLines.zeroLineWidth;
-				lineColor = gridLines.zeroLineColor;
-				borderDash = gridLines.zeroLineBorderDash;
-				borderDashOffset = gridLines.zeroLineBorderDashOffset;
-			} else {
-				lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index);
-				lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index);
-				borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
-				borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
-			}
-
-			// Common properties
-			var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
-			var textAlign = 'middle';
-			var textBaseline = 'middle';
-			var tickPadding = optionTicks.padding;
-
-			if (isHorizontal) {
-				var labelYOffset = tl + tickPadding;
-
-				if (options.position === 'bottom') {
-					// bottom
-					textBaseline = !isRotated ? 'top' : 'middle';
-					textAlign = !isRotated ? 'center' : 'right';
-					labelY = me.top + labelYOffset;
-				} else {
-					// top
-					textBaseline = !isRotated ? 'bottom' : 'middle';
-					textAlign = !isRotated ? 'center' : 'left';
-					labelY = me.bottom - labelYOffset;
-				}
-
-				var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
-				if (xLineValue < me.left) {
-					lineColor = 'rgba(0,0,0,0)';
-				}
-				xLineValue += helpers.aliasPixel(lineWidth);
-
-				labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)
-
-				tx1 = tx2 = x1 = x2 = xLineValue;
-				ty1 = yTickStart;
-				ty2 = yTickEnd;
-				y1 = chartArea.top;
-				y2 = chartArea.bottom + axisWidth;
-			} else {
-				var isLeft = options.position === 'left';
-				var labelXOffset;
-
-				if (optionTicks.mirror) {
-					textAlign = isLeft ? 'left' : 'right';
-					labelXOffset = tickPadding;
-				} else {
-					textAlign = isLeft ? 'right' : 'left';
-					labelXOffset = tl + tickPadding;
-				}
-
-				labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset;
-
-				var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
-				if (yLineValue < me.top) {
-					lineColor = 'rgba(0,0,0,0)';
-				}
-				yLineValue += helpers.aliasPixel(lineWidth);
-
-				labelY = me.getPixelForTick(index) + optionTicks.labelOffset;
-
-				tx1 = xTickStart;
-				tx2 = xTickEnd;
-				x1 = chartArea.left;
-				x2 = chartArea.right + axisWidth;
-				ty1 = ty2 = y1 = y2 = yLineValue;
-			}
-
-			itemsToDraw.push({
-				tx1: tx1,
-				ty1: ty1,
-				tx2: tx2,
-				ty2: ty2,
-				x1: x1,
-				y1: y1,
-				x2: x2,
-				y2: y2,
-				labelX: labelX,
-				labelY: labelY,
-				glWidth: lineWidth,
-				glColor: lineColor,
-				glBorderDash: borderDash,
-				glBorderDashOffset: borderDashOffset,
-				rotation: -1 * labelRotationRadians,
-				label: label,
-				major: tick.major,
-				textBaseline: textBaseline,
-				textAlign: textAlign
-			});
-		});
-
-		// Draw all of the tick labels, tick marks, and grid lines at the correct places
-		helpers.each(itemsToDraw, function(itemToDraw) {
-			if (gridLines.display) {
-				context.save();
-				context.lineWidth = itemToDraw.glWidth;
-				context.strokeStyle = itemToDraw.glColor;
-				if (context.setLineDash) {
-					context.setLineDash(itemToDraw.glBorderDash);
-					context.lineDashOffset = itemToDraw.glBorderDashOffset;
-				}
-
-				context.beginPath();
-
-				if (gridLines.drawTicks) {
-					context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
-					context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
-				}
-
-				if (gridLines.drawOnChartArea) {
-					context.moveTo(itemToDraw.x1, itemToDraw.y1);
-					context.lineTo(itemToDraw.x2, itemToDraw.y2);
-				}
-
-				context.stroke();
-				context.restore();
-			}
-
-			if (optionTicks.display) {
-				// Make sure we draw text in the correct color and font
-				context.save();
-				context.translate(itemToDraw.labelX, itemToDraw.labelY);
-				context.rotate(itemToDraw.rotation);
-				context.font = itemToDraw.major ? majorTickFont.font : tickFont.font;
-				context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
-				context.textBaseline = itemToDraw.textBaseline;
-				context.textAlign = itemToDraw.textAlign;
-
-				var label = itemToDraw.label;
-				if (helpers.isArray(label)) {
-					var lineCount = label.length;
-					var lineHeight = tickFont.size * 1.5;
-					var y = me.isHorizontal() ? 0 : -lineHeight * (lineCount - 1) / 2;
-
-					for (var i = 0; i < lineCount; ++i) {
-						// We just make sure the multiline element is a string here..
-						context.fillText('' + label[i], 0, y);
-						// apply same lineSpacing as calculated @ L#320
-						y += lineHeight;
-					}
-				} else {
-					context.fillText(label, 0, 0);
-				}
-				context.restore();
-			}
-		});
-
-		if (scaleLabel.display) {
-			// Draw the scale label
-			var scaleLabelX;
-			var scaleLabelY;
-			var rotation = 0;
-			var halfLineHeight = parseLineHeight(scaleLabel) / 2;
-
-			if (isHorizontal) {
-				scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
-				scaleLabelY = options.position === 'bottom'
-					? me.bottom - halfLineHeight - scaleLabelPadding.bottom
-					: me.top + halfLineHeight + scaleLabelPadding.top;
-			} else {
-				var isLeft = options.position === 'left';
-				scaleLabelX = isLeft
-					? me.left + halfLineHeight + scaleLabelPadding.top
-					: me.right - halfLineHeight - scaleLabelPadding.top;
-				scaleLabelY = me.top + ((me.bottom - me.top) / 2);
-				rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
-			}
-
-			context.save();
-			context.translate(scaleLabelX, scaleLabelY);
-			context.rotate(rotation);
-			context.textAlign = 'center';
-			context.textBaseline = 'middle';
-			context.fillStyle = scaleLabelFontColor; // render in correct colour
-			context.font = scaleLabelFont.font;
-			context.fillText(scaleLabel.labelString, 0, 0);
-			context.restore();
-		}
-
-		if (gridLines.drawBorder) {
-			// Draw the line at the edge of the axis
-			context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0);
-			context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0);
-			var x1 = me.left;
-			var x2 = me.right + axisWidth;
-			var y1 = me.top;
-			var y2 = me.bottom + axisWidth;
-
-			var aliasPixel = helpers.aliasPixel(context.lineWidth);
-			if (isHorizontal) {
-				y1 = y2 = options.position === 'top' ? me.bottom : me.top;
-				y1 += aliasPixel;
-				y2 += aliasPixel;
-			} else {
-				x1 = x2 = options.position === 'left' ? me.right : me.left;
-				x1 += aliasPixel;
-				x2 += aliasPixel;
-			}
-
-			context.beginPath();
-			context.moveTo(x1, y1);
-			context.lineTo(x2, y2);
-			context.stroke();
-		}
-	}
-});
-
-},{"26":26,"27":27,"35":35,"46":46}],34:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var helpers = require(46);
-var layouts = require(31);
-
-module.exports = {
+var core_scaleService = {
 	// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
 	// use the new chart options to grab the correct scale
 	constructors: {},
@@ -8029,119 +7245,36 @@ module.exports = {
 	defaults: {},
 	registerScaleType: function(type, scaleConstructor, scaleDefaults) {
 		this.constructors[type] = scaleConstructor;
-		this.defaults[type] = helpers.clone(scaleDefaults);
+		this.defaults[type] = helpers$1.clone(scaleDefaults);
 	},
 	getScaleConstructor: function(type) {
 		return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
 	},
 	getScaleDefaults: function(type) {
 		// Return the scale defaults merged with the global settings so that we always use the latest ones
-		return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {};
+		return this.defaults.hasOwnProperty(type) ? helpers$1.merge({}, [core_defaults.scale, this.defaults[type]]) : {};
 	},
 	updateScaleDefaults: function(type, additions) {
 		var me = this;
 		if (me.defaults.hasOwnProperty(type)) {
-			me.defaults[type] = helpers.extend(me.defaults[type], additions);
+			me.defaults[type] = helpers$1.extend(me.defaults[type], additions);
 		}
 	},
 	addScalesToLayout: function(chart) {
 		// Adds each scale to the chart.boxes array to be sized accordingly
-		helpers.each(chart.scales, function(scale) {
+		helpers$1.each(chart.scales, function(scale) {
 			// Set ILayoutItem parameters for backwards compatibility
 			scale.fullWidth = scale.options.fullWidth;
 			scale.position = scale.options.position;
 			scale.weight = scale.options.weight;
-			layouts.addBox(chart, scale);
+			core_layouts.addBox(chart, scale);
 		});
 	}
 };
 
-},{"26":26,"31":31,"46":46}],35:[function(require,module,exports){
-'use strict';
-
-var helpers = require(46);
-
-/**
- * Namespace to hold static tick generation functions
- * @namespace Chart.Ticks
- */
-module.exports = {
-	/**
-	 * Namespace to hold formatters for different types of ticks
-	 * @namespace Chart.Ticks.formatters
-	 */
-	formatters: {
-		/**
-		 * Formatter for value labels
-		 * @method Chart.Ticks.formatters.values
-		 * @param value the value to display
-		 * @return {String|Array} the label to display
-		 */
-		values: function(value) {
-			return helpers.isArray(value) ? value : '' + value;
-		},
-
-		/**
-		 * Formatter for linear numeric ticks
-		 * @method Chart.Ticks.formatters.linear
-		 * @param tickValue {Number} the value to be formatted
-		 * @param index {Number} the position of the tickValue parameter in the ticks array
-		 * @param ticks {Array<Number>} the list of ticks being converted
-		 * @return {String} string representation of the tickValue parameter
-		 */
-		linear: function(tickValue, index, ticks) {
-			// If we have lots of ticks, don't use the ones
-			var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
-
-			// If we have a number like 2.5 as the delta, figure out how many decimal places we need
-			if (Math.abs(delta) > 1) {
-				if (tickValue !== Math.floor(tickValue)) {
-					// not an integer
-					delta = tickValue - Math.floor(tickValue);
-				}
-			}
-
-			var logDelta = helpers.log10(Math.abs(delta));
-			var tickString = '';
-
-			if (tickValue !== 0) {
-				var maxTick = Math.max(Math.abs(ticks[0]), Math.abs(ticks[ticks.length - 1]));
-				if (maxTick < 1e-4) { // all ticks are small numbers; use scientific notation
-					var logTick = helpers.log10(Math.abs(tickValue));
-					tickString = tickValue.toExponential(Math.floor(logTick) - Math.floor(logDelta));
-				} else {
-					var numDecimal = -1 * Math.floor(logDelta);
-					numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
-					tickString = tickValue.toFixed(numDecimal);
-				}
-			} else {
-				tickString = '0'; // never show decimal places for 0
-			}
-
-			return tickString;
-		},
-
-		logarithmic: function(tickValue, index, ticks) {
-			var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue))));
-
-			if (tickValue === 0) {
-				return '0';
-			} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
-				return tickValue.toExponential();
-			}
-			return '';
-		}
-	}
-};
-
-},{"46":46}],36:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
+var valueOrDefault$7 = helpers$1.valueOrDefault;
 
-defaults._set('global', {
+core_defaults._set('global', {
 	tooltips: {
 		enabled: true,
 		custom: null,
@@ -8173,17 +7306,17 @@ defaults._set('global', {
 		borderWidth: 0,
 		callbacks: {
 			// Args are: (tooltipItems, data)
-			beforeTitle: helpers.noop,
+			beforeTitle: helpers$1.noop,
 			title: function(tooltipItems, data) {
-				// Pick first xLabel for now
 				var title = '';
 				var labels = data.labels;
 				var labelCount = labels ? labels.length : 0;
 
 				if (tooltipItems.length > 0) {
 					var item = tooltipItems[0];
-
-					if (item.xLabel) {
+					if (item.label) {
+						title = item.label;
+					} else if (item.xLabel) {
 						title = item.xLabel;
 					} else if (labelCount > 0 && item.index < labelCount) {
 						title = labels[item.index];
@@ -8192,20 +7325,24 @@ defaults._set('global', {
 
 				return title;
 			},
-			afterTitle: helpers.noop,
+			afterTitle: helpers$1.noop,
 
 			// Args are: (tooltipItems, data)
-			beforeBody: helpers.noop,
+			beforeBody: helpers$1.noop,
 
 			// Args are: (tooltipItem, data)
-			beforeLabel: helpers.noop,
+			beforeLabel: helpers$1.noop,
 			label: function(tooltipItem, data) {
 				var label = data.datasets[tooltipItem.datasetIndex].label || '';
 
 				if (label) {
 					label += ': ';
 				}
-				label += tooltipItem.yLabel;
+				if (!helpers$1.isNullOrUndef(tooltipItem.value)) {
+					label += tooltipItem.value;
+				} else {
+					label += tooltipItem.yLabel;
+				}
 				return label;
 			},
 			labelColor: function(tooltipItem, chart) {
@@ -8220,15 +7357,15 @@ defaults._set('global', {
 			labelTextColor: function() {
 				return this._options.bodyFontColor;
 			},
-			afterLabel: helpers.noop,
+			afterLabel: helpers$1.noop,
 
 			// Args are: (tooltipItems, data)
-			afterBody: helpers.noop,
+			afterBody: helpers$1.noop,
 
 			// Args are: (tooltipItems, data)
-			beforeFooter: helpers.noop,
-			footer: helpers.noop,
-			afterFooter: helpers.noop
+			beforeFooter: helpers$1.noop,
+			footer: helpers$1.noop,
+			afterFooter: helpers$1.noop
 		}
 	}
 });
@@ -8238,7 +7375,7 @@ var positioners = {
 	 * Average mode places the tooltip at the average position of the elements shown
 	 * @function Chart.Tooltip.positioners.average
 	 * @param elements {ChartElement[]} the elements being displayed in the tooltip
-	 * @returns {Point} tooltip position
+	 * @returns {object} tooltip position
 	 */
 	average: function(elements) {
 		if (!elements.length) {
@@ -8261,8 +7398,8 @@ var positioners = {
 		}
 
 		return {
-			x: Math.round(x / count),
-			y: Math.round(y / count)
+			x: x / count,
+			y: y / count
 		};
 	},
 
@@ -8270,8 +7407,8 @@ var positioners = {
 	 * Gets the tooltip position nearest of the item nearest to the event position
 	 * @function Chart.Tooltip.positioners.nearest
 	 * @param elements {Chart.Element[]} the tooltip elements
-	 * @param eventPosition {Point} the position of the event in canvas coordinates
-	 * @returns {Point} the tooltip position
+	 * @param eventPosition {object} the position of the event in canvas coordinates
+	 * @returns {object} the tooltip position
 	 */
 	nearest: function(elements, eventPosition) {
 		var x = eventPosition.x;
@@ -8283,7 +7420,7 @@ var positioners = {
 			var el = elements[i];
 			if (el && el.hasValue()) {
 				var center = el.getCenterPoint();
-				var d = helpers.distanceBetweenPoints(eventPosition, center);
+				var d = helpers$1.distanceBetweenPoints(eventPosition, center);
 
 				if (d < minDistance) {
 					minDistance = d;
@@ -8305,18 +7442,10 @@ var positioners = {
 	}
 };
 
-/**
- * Helper method to merge the opacity into a color
- */
-function mergeOpacity(colorString, opacity) {
-	var color = helpers.color(colorString);
-	return color.alpha(opacity * color.alpha()).rgbaString();
-}
-
 // Helper to push or concat based on if the 2nd parameter is an array or not
 function pushOrConcat(base, toPush) {
 	if (toPush) {
-		if (helpers.isArray(toPush)) {
+		if (helpers$1.isArray(toPush)) {
 			// base = base.concat(toPush);
 			Array.prototype.push.apply(base, toPush);
 		} else {
@@ -8329,8 +7458,8 @@ function pushOrConcat(base, toPush) {
 
 /**
  * Returns array of strings split by newline
- * @param {String} value - The value to split by newline.
- * @returns {Array} value if newline present - Returned from String split() method
+ * @param {string} value - The value to split by newline.
+ * @returns {string[]} value if newline present - Returned from String split() method
  * @function
  */
 function splitNewlines(str) {
@@ -8341,18 +7470,25 @@ function splitNewlines(str) {
 }
 
 
-// Private helper to create a tooltip item model
-// @param element : the chart element (point, arc, bar) to create the tooltip item for
-// @return : new tooltip item
+/**
+ * Private helper to create a tooltip item model
+ * @param element - the chart element (point, arc, bar) to create the tooltip item for
+ * @return new tooltip item
+ */
 function createTooltipItem(element) {
 	var xScale = element._xScale;
 	var yScale = element._yScale || element._scale; // handle radar || polarArea charts
 	var index = element._index;
 	var datasetIndex = element._datasetIndex;
+	var controller = element._chart.getDatasetMeta(datasetIndex).controller;
+	var indexScale = controller._getIndexScale();
+	var valueScale = controller._getValueScale();
 
 	return {
 		xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
 		yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
+		label: indexScale ? '' + indexScale.getLabelForIndex(index, datasetIndex) : '',
+		value: valueScale ? '' + valueScale.getLabelForIndex(index, datasetIndex) : '',
 		index: index,
 		datasetIndex: datasetIndex,
 		x: element._model.x,
@@ -8362,11 +7498,10 @@ function createTooltipItem(element) {
 
 /**
  * Helper to get the reset model for the tooltip
- * @param tooltipOpts {Object} the tooltip options
+ * @param tooltipOpts {object} the tooltip options
  */
 function getBaseModel(tooltipOpts) {
-	var globalDefaults = defaults.global;
-	var valueOrDefault = helpers.valueOrDefault;
+	var globalDefaults = core_defaults.global;
 
 	return {
 		// Positioning
@@ -8377,26 +7512,26 @@ function getBaseModel(tooltipOpts) {
 
 		// Body
 		bodyFontColor: tooltipOpts.bodyFontColor,
-		_bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
-		_bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
+		_bodyFontFamily: valueOrDefault$7(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
+		_bodyFontStyle: valueOrDefault$7(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
 		_bodyAlign: tooltipOpts.bodyAlign,
-		bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
+		bodyFontSize: valueOrDefault$7(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
 		bodySpacing: tooltipOpts.bodySpacing,
 
 		// Title
 		titleFontColor: tooltipOpts.titleFontColor,
-		_titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
-		_titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
-		titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
+		_titleFontFamily: valueOrDefault$7(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
+		_titleFontStyle: valueOrDefault$7(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
+		titleFontSize: valueOrDefault$7(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
 		_titleAlign: tooltipOpts.titleAlign,
 		titleSpacing: tooltipOpts.titleSpacing,
 		titleMarginBottom: tooltipOpts.titleMarginBottom,
 
 		// Footer
 		footerFontColor: tooltipOpts.footerFontColor,
-		_footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
-		_footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
-		footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
+		_footerFontFamily: valueOrDefault$7(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
+		_footerFontStyle: valueOrDefault$7(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
+		footerFontSize: valueOrDefault$7(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
 		_footerAlign: tooltipOpts.footerAlign,
 		footerSpacing: tooltipOpts.footerSpacing,
 		footerMarginTop: tooltipOpts.footerMarginTop,
@@ -8450,27 +7585,27 @@ function getTooltipSize(tooltip, model) {
 		width = Math.max(width, ctx.measureText(line).width + widthPadding);
 	};
 
-	ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
-	helpers.each(model.title, maxLineWidth);
+	ctx.font = helpers$1.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
+	helpers$1.each(model.title, maxLineWidth);
 
 	// Body width
-	ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
-	helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth);
+	ctx.font = helpers$1.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
+	helpers$1.each(model.beforeBody.concat(model.afterBody), maxLineWidth);
 
 	// Body lines may include some extra width due to the color box
 	widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
-	helpers.each(body, function(bodyItem) {
-		helpers.each(bodyItem.before, maxLineWidth);
-		helpers.each(bodyItem.lines, maxLineWidth);
-		helpers.each(bodyItem.after, maxLineWidth);
+	helpers$1.each(body, function(bodyItem) {
+		helpers$1.each(bodyItem.before, maxLineWidth);
+		helpers$1.each(bodyItem.lines, maxLineWidth);
+		helpers$1.each(bodyItem.after, maxLineWidth);
 	});
 
 	// Reset back to 0
 	widthPadding = 0;
 
 	// Footer width
-	ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
-	helpers.each(model.footer, maxLineWidth);
+	ctx.font = helpers$1.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
+	helpers$1.each(model.footer, maxLineWidth);
 
 	// Add padding
 	width += 2 * model.xPadding;
@@ -8608,6 +7743,14 @@ function getBackgroundPoint(vm, size, alignment, chart) {
 	};
 }
 
+function getAlignedX(vm, align) {
+	return align === 'center'
+		? vm.x + vm.width / 2
+		: align === 'right'
+			? vm.x + vm.width - vm.xPadding
+			: vm.x + vm.xPadding;
+}
+
 /**
  * Helper to build before and after body lines
  */
@@ -8615,7 +7758,7 @@ function getBeforeAfterBodyLines(callback) {
 	return pushOrConcat([], splitNewlines(callback));
 }
 
-var exports = module.exports = Element.extend({
+var exports$3 = core_element.extend({
 	initialize: function() {
 		this._model = getBaseModel(this._options);
 		this._lastActive = [];
@@ -8651,7 +7794,7 @@ var exports = module.exports = Element.extend({
 		var callbacks = me._options.callbacks;
 		var bodyItems = [];
 
-		helpers.each(tooltipItems, function(tooltipItem) {
+		helpers$1.each(tooltipItems, function(tooltipItem) {
 			var bodyItem = {
 				before: [],
 				lines: [],
@@ -8750,7 +7893,7 @@ var exports = module.exports = Element.extend({
 			}
 
 			// Determine colors for boxes
-			helpers.each(tooltipItems, function(tooltipItem) {
+			helpers$1.each(tooltipItems, function(tooltipItem) {
 				labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
 				labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
 			});
@@ -8764,8 +7907,8 @@ var exports = module.exports = Element.extend({
 			model.footer = me.getFooter(tooltipItems, data);
 
 			// Initial positioning and colors
-			model.x = Math.round(tooltipPosition.x);
-			model.y = Math.round(tooltipPosition.y);
+			model.x = tooltipPosition.x;
+			model.y = tooltipPosition.y;
 			model.caretPadding = opts.caretPadding;
 			model.labelColors = labelColors;
 			model.labelTextColors = labelTextColors;
@@ -8871,18 +8014,20 @@ var exports = module.exports = Element.extend({
 		return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
 	},
 
-	drawTitle: function(pt, vm, ctx, opacity) {
+	drawTitle: function(pt, vm, ctx) {
 		var title = vm.title;
 
 		if (title.length) {
+			pt.x = getAlignedX(vm, vm._titleAlign);
+
 			ctx.textAlign = vm._titleAlign;
 			ctx.textBaseline = 'top';
 
 			var titleFontSize = vm.titleFontSize;
 			var titleSpacing = vm.titleSpacing;
 
-			ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity);
-			ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
+			ctx.fillStyle = vm.titleFontColor;
+			ctx.font = helpers$1.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);
 
 			var i, len;
 			for (i = 0, len = title.length; i < len; ++i) {
@@ -8896,89 +8041,98 @@ var exports = module.exports = Element.extend({
 		}
 	},
 
-	drawBody: function(pt, vm, ctx, opacity) {
+	drawBody: function(pt, vm, ctx) {
 		var bodyFontSize = vm.bodyFontSize;
 		var bodySpacing = vm.bodySpacing;
+		var bodyAlign = vm._bodyAlign;
 		var body = vm.body;
+		var drawColorBoxes = vm.displayColors;
+		var labelColors = vm.labelColors;
+		var xLinePadding = 0;
+		var colorX = drawColorBoxes ? getAlignedX(vm, 'left') : 0;
+		var textColor;
 
-		ctx.textAlign = vm._bodyAlign;
+		ctx.textAlign = bodyAlign;
 		ctx.textBaseline = 'top';
-		ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
+		ctx.font = helpers$1.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);
+
+		pt.x = getAlignedX(vm, bodyAlign);
 
 		// Before Body
-		var xLinePadding = 0;
 		var fillLineOfText = function(line) {
 			ctx.fillText(line, pt.x + xLinePadding, pt.y);
 			pt.y += bodyFontSize + bodySpacing;
 		};
 
 		// Before body lines
-		ctx.fillStyle = mergeOpacity(vm.bodyFontColor, opacity);
-		helpers.each(vm.beforeBody, fillLineOfText);
+		ctx.fillStyle = vm.bodyFontColor;
+		helpers$1.each(vm.beforeBody, fillLineOfText);
 
-		var drawColorBoxes = vm.displayColors;
-		xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;
+		xLinePadding = drawColorBoxes && bodyAlign !== 'right'
+			? bodyAlign === 'center' ? (bodyFontSize / 2 + 1) : (bodyFontSize + 2)
+			: 0;
 
 		// Draw body lines now
-		helpers.each(body, function(bodyItem, i) {
-			var textColor = mergeOpacity(vm.labelTextColors[i], opacity);
+		helpers$1.each(body, function(bodyItem, i) {
+			textColor = vm.labelTextColors[i];
 			ctx.fillStyle = textColor;
-			helpers.each(bodyItem.before, fillLineOfText);
+			helpers$1.each(bodyItem.before, fillLineOfText);
 
-			helpers.each(bodyItem.lines, function(line) {
+			helpers$1.each(bodyItem.lines, function(line) {
 				// Draw Legend-like boxes if needed
 				if (drawColorBoxes) {
 					// Fill a white rect so that colours merge nicely if the opacity is < 1
-					ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity);
-					ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
+					ctx.fillStyle = vm.legendColorBackground;
+					ctx.fillRect(colorX, pt.y, bodyFontSize, bodyFontSize);
 
 					// Border
 					ctx.lineWidth = 1;
-					ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity);
-					ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);
+					ctx.strokeStyle = labelColors[i].borderColor;
+					ctx.strokeRect(colorX, pt.y, bodyFontSize, bodyFontSize);
 
 					// Inner square
-					ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity);
-					ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
+					ctx.fillStyle = labelColors[i].backgroundColor;
+					ctx.fillRect(colorX + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
 					ctx.fillStyle = textColor;
 				}
 
 				fillLineOfText(line);
 			});
 
-			helpers.each(bodyItem.after, fillLineOfText);
+			helpers$1.each(bodyItem.after, fillLineOfText);
 		});
 
 		// Reset back to 0 for after body
 		xLinePadding = 0;
 
 		// After body lines
-		helpers.each(vm.afterBody, fillLineOfText);
+		helpers$1.each(vm.afterBody, fillLineOfText);
 		pt.y -= bodySpacing; // Remove last body spacing
 	},
 
-	drawFooter: function(pt, vm, ctx, opacity) {
+	drawFooter: function(pt, vm, ctx) {
 		var footer = vm.footer;
 
 		if (footer.length) {
+			pt.x = getAlignedX(vm, vm._footerAlign);
 			pt.y += vm.footerMarginTop;
 
 			ctx.textAlign = vm._footerAlign;
 			ctx.textBaseline = 'top';
 
-			ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity);
-			ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
+			ctx.fillStyle = vm.footerFontColor;
+			ctx.font = helpers$1.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);
 
-			helpers.each(footer, function(line) {
+			helpers$1.each(footer, function(line) {
 				ctx.fillText(line, pt.x, pt.y);
 				pt.y += vm.footerFontSize + vm.footerSpacing;
 			});
 		}
 	},
 
-	drawBackground: function(pt, vm, ctx, tooltipSize, opacity) {
-		ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity);
-		ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity);
+	drawBackground: function(pt, vm, ctx, tooltipSize) {
+		ctx.fillStyle = vm.backgroundColor;
+		ctx.strokeStyle = vm.borderColor;
 		ctx.lineWidth = vm.borderWidth;
 		var xAlign = vm.xAlign;
 		var yAlign = vm.yAlign;
@@ -9043,21 +8197,25 @@ var exports = module.exports = Element.extend({
 		var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;
 
 		if (this._options.enabled && hasTooltipContent) {
+			ctx.save();
+			ctx.globalAlpha = opacity;
+
 			// Draw Background
-			this.drawBackground(pt, vm, ctx, tooltipSize, opacity);
+			this.drawBackground(pt, vm, ctx, tooltipSize);
 
 			// Draw Title, Body, and Footer
-			pt.x += vm.xPadding;
 			pt.y += vm.yPadding;
 
 			// Titles
-			this.drawTitle(pt, vm, ctx, opacity);
+			this.drawTitle(pt, vm, ctx);
 
 			// Body
-			this.drawBody(pt, vm, ctx, opacity);
+			this.drawBody(pt, vm, ctx);
 
 			// Footer
-			this.drawFooter(pt, vm, ctx, opacity);
+			this.drawFooter(pt, vm, ctx);
+
+			ctx.restore();
 		}
 	},
 
@@ -9065,7 +8223,7 @@ var exports = module.exports = Element.extend({
 	 * Handle an event
 	 * @private
 	 * @param {IEvent} event - The event to handle
-	 * @returns {Boolean} true if the tooltip changed
+	 * @returns {boolean} true if the tooltip changed
 	 */
 	handleEvent: function(e) {
 		var me = this;
@@ -9082,7 +8240,7 @@ var exports = module.exports = Element.extend({
 		}
 
 		// Remember Last Actives
-		changed = !helpers.arrayEquals(me._active, me._lastActive);
+		changed = !helpers$1.arrayEquals(me._active, me._lastActive);
 
 		// Only handle target event on tooltip change
 		if (changed) {
@@ -9106,2014 +8264,5126 @@ var exports = module.exports = Element.extend({
 /**
  * @namespace Chart.Tooltip.positioners
  */
-exports.positioners = positioners;
+var positioners_1 = positioners;
+
+var core_tooltip = exports$3;
+core_tooltip.positioners = positioners_1;
+
+var valueOrDefault$8 = helpers$1.valueOrDefault;
+
+core_defaults._set('global', {
+	elements: {},
+	events: [
+		'mousemove',
+		'mouseout',
+		'click',
+		'touchstart',
+		'touchmove'
+	],
+	hover: {
+		onHover: null,
+		mode: 'nearest',
+		intersect: true,
+		animationDuration: 400
+	},
+	onClick: null,
+	maintainAspectRatio: true,
+	responsive: true,
+	responsiveAnimationDuration: 0
+});
+
+/**
+ * Recursively merge the given config objects representing the `scales` option
+ * by incorporating scale defaults in `xAxes` and `yAxes` array items, then
+ * returns a deep copy of the result, thus doesn't alter inputs.
+ */
+function mergeScaleConfig(/* config objects ... */) {
+	return helpers$1.merge({}, [].slice.call(arguments), {
+		merger: function(key, target, source, options) {
+			if (key === 'xAxes' || key === 'yAxes') {
+				var slen = source[key].length;
+				var i, type, scale;
+
+				if (!target[key]) {
+					target[key] = [];
+				}
 
+				for (i = 0; i < slen; ++i) {
+					scale = source[key][i];
+					type = valueOrDefault$8(scale.type, key === 'xAxes' ? 'category' : 'linear');
 
-},{"26":26,"27":27,"46":46}],37:[function(require,module,exports){
-'use strict';
+					if (i >= target[key].length) {
+						target[key].push({});
+					}
 
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
+					if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
+						// new/untyped scale or type changed: let's apply the new defaults
+						// then merge source scale to correctly overwrite the defaults.
+						helpers$1.merge(target[key][i], [core_scaleService.getScaleDefaults(type), scale]);
+					} else {
+						// scales type are the same
+						helpers$1.merge(target[key][i], scale);
+					}
+				}
+			} else {
+				helpers$1._merger(key, target, source, options);
+			}
+		}
+	});
+}
 
-defaults._set('global', {
-	elements: {
-		arc: {
-			backgroundColor: defaults.global.defaultColor,
-			borderColor: '#fff',
-			borderWidth: 2
+/**
+ * Recursively merge the given config objects as the root options by handling
+ * default scale options for the `scales` and `scale` properties, then returns
+ * a deep copy of the result, thus doesn't alter inputs.
+ */
+function mergeConfig(/* config objects ... */) {
+	return helpers$1.merge({}, [].slice.call(arguments), {
+		merger: function(key, target, source, options) {
+			var tval = target[key] || {};
+			var sval = source[key];
+
+			if (key === 'scales') {
+				// scale config merging is complex. Add our own function here for that
+				target[key] = mergeScaleConfig(tval, sval);
+			} else if (key === 'scale') {
+				// used in polar area & radar charts since there is only one scale
+				target[key] = helpers$1.merge(tval, [core_scaleService.getScaleDefaults(sval.type), sval]);
+			} else {
+				helpers$1._merger(key, target, source, options);
+			}
 		}
-	}
-});
+	});
+}
 
-module.exports = Element.extend({
-	inLabelRange: function(mouseX) {
-		var vm = this._view;
+function initConfig(config) {
+	config = config || {};
 
-		if (vm) {
-			return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
+	// Do NOT use mergeConfig for the data object because this method merges arrays
+	// and so would change references to labels and datasets, preventing data updates.
+	var data = config.data = config.data || {};
+	data.datasets = data.datasets || [];
+	data.labels = data.labels || [];
+
+	config.options = mergeConfig(
+		core_defaults.global,
+		core_defaults[config.type],
+		config.options || {});
+
+	return config;
+}
+
+function updateConfig(chart) {
+	var newOptions = chart.options;
+
+	helpers$1.each(chart.scales, function(scale) {
+		core_layouts.removeBox(chart, scale);
+	});
+
+	newOptions = mergeConfig(
+		core_defaults.global,
+		core_defaults[chart.config.type],
+		newOptions);
+
+	chart.options = chart.config.options = newOptions;
+	chart.ensureScalesHaveIDs();
+	chart.buildOrUpdateScales();
+
+	// Tooltip
+	chart.tooltip._options = newOptions.tooltips;
+	chart.tooltip.initialize();
+}
+
+function positionIsHorizontal(position) {
+	return position === 'top' || position === 'bottom';
+}
+
+var Chart = function(item, config) {
+	this.construct(item, config);
+	return this;
+};
+
+helpers$1.extend(Chart.prototype, /** @lends Chart */ {
+	/**
+	 * @private
+	 */
+	construct: function(item, config) {
+		var me = this;
+
+		config = initConfig(config);
+
+		var context = platform.acquireContext(item, config);
+		var canvas = context && context.canvas;
+		var height = canvas && canvas.height;
+		var width = canvas && canvas.width;
+
+		me.id = helpers$1.uid();
+		me.ctx = context;
+		me.canvas = canvas;
+		me.config = config;
+		me.width = width;
+		me.height = height;
+		me.aspectRatio = height ? width / height : null;
+		me.options = config.options;
+		me._bufferedRender = false;
+
+		/**
+		 * Provided for backward compatibility, Chart and Chart.Controller have been merged,
+		 * the "instance" still need to be defined since it might be called from plugins.
+		 * @prop Chart#chart
+		 * @deprecated since version 2.6.0
+		 * @todo remove at version 3
+		 * @private
+		 */
+		me.chart = me;
+		me.controller = me; // chart.chart.controller #inception
+
+		// Add the chart instance to the global namespace
+		Chart.instances[me.id] = me;
+
+		// Define alias to the config data: `chart.data === chart.config.data`
+		Object.defineProperty(me, 'data', {
+			get: function() {
+				return me.config.data;
+			},
+			set: function(value) {
+				me.config.data = value;
+			}
+		});
+
+		if (!context || !canvas) {
+			// The given item is not a compatible context2d element, let's return before finalizing
+			// the chart initialization but after setting basic chart / controller properties that
+			// can help to figure out that the chart is not valid (e.g chart.canvas !== null);
+			// https://github.com/chartjs/Chart.js/issues/2807
+			console.error("Failed to create chart: can't acquire context from the given item");
+			return;
 		}
-		return false;
+
+		me.initialize();
+		me.update();
 	},
 
-	inRange: function(chartX, chartY) {
-		var vm = this._view;
+	/**
+	 * @private
+	 */
+	initialize: function() {
+		var me = this;
 
-		if (vm) {
-			var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY});
-			var	angle = pointRelativePosition.angle;
-			var distance = pointRelativePosition.distance;
+		// Before init plugin notification
+		core_plugins.notify(me, 'beforeInit');
 
-			// Sanitise angle range
-			var startAngle = vm.startAngle;
-			var endAngle = vm.endAngle;
-			while (endAngle < startAngle) {
-				endAngle += 2.0 * Math.PI;
-			}
-			while (angle > endAngle) {
-				angle -= 2.0 * Math.PI;
-			}
-			while (angle < startAngle) {
-				angle += 2.0 * Math.PI;
-			}
+		helpers$1.retinaScale(me, me.options.devicePixelRatio);
 
-			// Check if within the range of the open/close angle
-			var betweenAngles = (angle >= startAngle && angle <= endAngle);
-			var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);
+		me.bindEvents();
 
-			return (betweenAngles && withinRadius);
+		if (me.options.responsive) {
+			// Initial resize before chart draws (must be silent to preserve initial animations).
+			me.resize(true);
 		}
-		return false;
+
+		// Make sure scales have IDs and are built before we build any controllers.
+		me.ensureScalesHaveIDs();
+		me.buildOrUpdateScales();
+		me.initToolTip();
+
+		// After init plugin notification
+		core_plugins.notify(me, 'afterInit');
+
+		return me;
 	},
 
-	getCenterPoint: function() {
-		var vm = this._view;
-		var halfAngle = (vm.startAngle + vm.endAngle) / 2;
-		var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
-		return {
-			x: vm.x + Math.cos(halfAngle) * halfRadius,
-			y: vm.y + Math.sin(halfAngle) * halfRadius
-		};
+	clear: function() {
+		helpers$1.canvas.clear(this);
+		return this;
 	},
 
-	getArea: function() {
-		var vm = this._view;
-		return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
+	stop: function() {
+		// Stops any current animation loop occurring
+		core_animations.cancelAnimation(this);
+		return this;
 	},
 
-	tooltipPosition: function() {
-		var vm = this._view;
-		var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
-		var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;
+	resize: function(silent) {
+		var me = this;
+		var options = me.options;
+		var canvas = me.canvas;
+		var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;
 
-		return {
-			x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
-			y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
-		};
-	},
+		// the canvas render width and height will be casted to integers so make sure that
+		// the canvas display style uses the same integer values to avoid blurring effect.
 
-	draw: function() {
-		var ctx = this._chart.ctx;
-		var vm = this._view;
-		var sA = vm.startAngle;
-		var eA = vm.endAngle;
+		// Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collapsed
+		var newWidth = Math.max(0, Math.floor(helpers$1.getMaximumWidth(canvas)));
+		var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers$1.getMaximumHeight(canvas)));
 
-		ctx.beginPath();
+		if (me.width === newWidth && me.height === newHeight) {
+			return;
+		}
 
-		ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
-		ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);
+		canvas.width = me.width = newWidth;
+		canvas.height = me.height = newHeight;
+		canvas.style.width = newWidth + 'px';
+		canvas.style.height = newHeight + 'px';
 
-		ctx.closePath();
-		ctx.strokeStyle = vm.borderColor;
-		ctx.lineWidth = vm.borderWidth;
+		helpers$1.retinaScale(me, options.devicePixelRatio);
 
-		ctx.fillStyle = vm.backgroundColor;
+		if (!silent) {
+			// Notify any plugins about the resize
+			var newSize = {width: newWidth, height: newHeight};
+			core_plugins.notify(me, 'resize', [newSize]);
 
-		ctx.fill();
-		ctx.lineJoin = 'bevel';
+			// Notify of resize
+			if (options.onResize) {
+				options.onResize(me, newSize);
+			}
 
-		if (vm.borderWidth) {
-			ctx.stroke();
+			me.stop();
+			me.update({
+				duration: options.responsiveAnimationDuration
+			});
 		}
-	}
-});
+	},
 
-},{"26":26,"27":27,"46":46}],38:[function(require,module,exports){
-'use strict';
+	ensureScalesHaveIDs: function() {
+		var options = this.options;
+		var scalesOptions = options.scales || {};
+		var scaleOptions = options.scale;
 
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
+		helpers$1.each(scalesOptions.xAxes, function(xAxisOptions, index) {
+			xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
+		});
 
-var globalDefaults = defaults.global;
+		helpers$1.each(scalesOptions.yAxes, function(yAxisOptions, index) {
+			yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
+		});
 
-defaults._set('global', {
-	elements: {
-		line: {
-			tension: 0.4,
-			backgroundColor: globalDefaults.defaultColor,
-			borderWidth: 3,
-			borderColor: globalDefaults.defaultColor,
-			borderCapStyle: 'butt',
-			borderDash: [],
-			borderDashOffset: 0.0,
-			borderJoinStyle: 'miter',
-			capBezierPoints: true,
-			fill: true, // do we fill in the area between the line and its base axis
+		if (scaleOptions) {
+			scaleOptions.id = scaleOptions.id || 'scale';
 		}
-	}
-});
+	},
 
-module.exports = Element.extend({
-	draw: function() {
+	/**
+	 * Builds a map of scale ID to scale object for future lookup.
+	 */
+	buildOrUpdateScales: function() {
 		var me = this;
-		var vm = me._view;
-		var ctx = me._chart.ctx;
-		var spanGaps = vm.spanGaps;
-		var points = me._children.slice(); // clone array
-		var globalOptionLineElements = globalDefaults.elements.line;
-		var lastDrawnIndex = -1;
-		var index, current, previous, currentVM;
-
-		// If we are looping, adding the first point again
-		if (me._loop && points.length) {
-			points.push(points[0]);
+		var options = me.options;
+		var scales = me.scales || {};
+		var items = [];
+		var updated = Object.keys(scales).reduce(function(obj, id) {
+			obj[id] = false;
+			return obj;
+		}, {});
+
+		if (options.scales) {
+			items = items.concat(
+				(options.scales.xAxes || []).map(function(xAxisOptions) {
+					return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
+				}),
+				(options.scales.yAxes || []).map(function(yAxisOptions) {
+					return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
+				})
+			);
+		}
+
+		if (options.scale) {
+			items.push({
+				options: options.scale,
+				dtype: 'radialLinear',
+				isDefault: true,
+				dposition: 'chartArea'
+			});
 		}
 
-		ctx.save();
+		helpers$1.each(items, function(item) {
+			var scaleOptions = item.options;
+			var id = scaleOptions.id;
+			var scaleType = valueOrDefault$8(scaleOptions.type, item.dtype);
 
-		// Stroke Line Options
-		ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;
+			if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
+				scaleOptions.position = item.dposition;
+			}
 
-		// IE 9 and 10 do not support line dash
-		if (ctx.setLineDash) {
-			ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
-		}
+			updated[id] = true;
+			var scale = null;
+			if (id in scales && scales[id].type === scaleType) {
+				scale = scales[id];
+				scale.options = scaleOptions;
+				scale.ctx = me.ctx;
+				scale.chart = me;
+			} else {
+				var scaleClass = core_scaleService.getScaleConstructor(scaleType);
+				if (!scaleClass) {
+					return;
+				}
+				scale = new scaleClass({
+					id: id,
+					type: scaleType,
+					options: scaleOptions,
+					ctx: me.ctx,
+					chart: me
+				});
+				scales[scale.id] = scale;
+			}
 
-		ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
-		ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
-		ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
-		ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;
+			scale.mergeTicksOptions();
 
-		// Stroke Line
-		ctx.beginPath();
-		lastDrawnIndex = -1;
+			// TODO(SB): I think we should be able to remove this custom case (options.scale)
+			// and consider it as a regular scale part of the "scales"" map only! This would
+			// make the logic easier and remove some useless? custom code.
+			if (item.isDefault) {
+				me.scale = scale;
+			}
+		});
+		// clear up discarded scales
+		helpers$1.each(updated, function(hasUpdated, id) {
+			if (!hasUpdated) {
+				delete scales[id];
+			}
+		});
 
-		for (index = 0; index < points.length; ++index) {
-			current = points[index];
-			previous = helpers.previousItem(points, index);
-			currentVM = current._view;
+		me.scales = scales;
 
-			// First point moves to it's starting position no matter what
-			if (index === 0) {
-				if (!currentVM.skip) {
-					ctx.moveTo(currentVM.x, currentVM.y);
-					lastDrawnIndex = index;
-				}
-			} else {
-				previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];
+		core_scaleService.addScalesToLayout(this);
+	},
 
-				if (!currentVM.skip) {
-					if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
-						// There was a gap and this is the first point after the gap
-						ctx.moveTo(currentVM.x, currentVM.y);
-					} else {
-						// Line to next point
-						helpers.canvas.lineTo(ctx, previous._view, current._view);
-					}
-					lastDrawnIndex = index;
+	buildOrUpdateControllers: function() {
+		var me = this;
+		var newControllers = [];
+
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			var meta = me.getDatasetMeta(datasetIndex);
+			var type = dataset.type || me.config.type;
+
+			if (meta.type && meta.type !== type) {
+				me.destroyDatasetMeta(datasetIndex);
+				meta = me.getDatasetMeta(datasetIndex);
+			}
+			meta.type = type;
+
+			if (meta.controller) {
+				meta.controller.updateIndex(datasetIndex);
+				meta.controller.linkScales();
+			} else {
+				var ControllerClass = controllers[meta.type];
+				if (ControllerClass === undefined) {
+					throw new Error('"' + meta.type + '" is not a chart type.');
 				}
+
+				meta.controller = new ControllerClass(me, datasetIndex);
+				newControllers.push(meta.controller);
 			}
+		}, me);
+
+		return newControllers;
+	},
+
+	/**
+	 * Reset the elements of all datasets
+	 * @private
+	 */
+	resetElements: function() {
+		var me = this;
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			me.getDatasetMeta(datasetIndex).controller.reset();
+		}, me);
+	},
+
+	/**
+	* Resets the chart back to it's state before the initial animation
+	*/
+	reset: function() {
+		this.resetElements();
+		this.tooltip.initialize();
+	},
+
+	update: function(config) {
+		var me = this;
+
+		if (!config || typeof config !== 'object') {
+			// backwards compatibility
+			config = {
+				duration: config,
+				lazy: arguments[1]
+			};
 		}
 
-		ctx.stroke();
-		ctx.restore();
-	}
-});
+		updateConfig(me);
 
-},{"26":26,"27":27,"46":46}],39:[function(require,module,exports){
-'use strict';
+		// plugins options references might have change, let's invalidate the cache
+		// https://github.com/chartjs/Chart.js/issues/5111#issuecomment-355934167
+		core_plugins._invalidate(me);
 
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
+		if (core_plugins.notify(me, 'beforeUpdate') === false) {
+			return;
+		}
 
-var defaultColor = defaults.global.defaultColor;
+		// In case the entire data object changed
+		me.tooltip._data = me.data;
 
-defaults._set('global', {
-	elements: {
-		point: {
-			radius: 3,
-			pointStyle: 'circle',
-			backgroundColor: defaultColor,
-			borderColor: defaultColor,
-			borderWidth: 1,
-			// Hover
-			hitRadius: 1,
-			hoverRadius: 4,
-			hoverBorderWidth: 1
+		// Make sure dataset controllers are updated and new controllers are reset
+		var newControllers = me.buildOrUpdateControllers();
+
+		// Make sure all dataset controllers have correct meta data counts
+		helpers$1.each(me.data.datasets, function(dataset, datasetIndex) {
+			me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
+		}, me);
+
+		me.updateLayout();
+
+		// Can only reset the new controllers after the scales have been updated
+		if (me.options.animation && me.options.animation.duration) {
+			helpers$1.each(newControllers, function(controller) {
+				controller.reset();
+			});
 		}
-	}
-});
 
-function xRange(mouseX) {
-	var vm = this._view;
-	return vm ? (Math.abs(mouseX - vm.x) < vm.radius + vm.hitRadius) : false;
-}
+		me.updateDatasets();
 
-function yRange(mouseY) {
-	var vm = this._view;
-	return vm ? (Math.abs(mouseY - vm.y) < vm.radius + vm.hitRadius) : false;
-}
+		// Need to reset tooltip in case it is displayed with elements that are removed
+		// after update.
+		me.tooltip.initialize();
 
-module.exports = Element.extend({
-	inRange: function(mouseX, mouseY) {
-		var vm = this._view;
-		return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
+		// Last active contains items that were previously in the tooltip.
+		// When we reset the tooltip, we need to clear it
+		me.lastActive = [];
+
+		// Do this before render so that any plugins that need final scale updates can use it
+		core_plugins.notify(me, 'afterUpdate');
+
+		if (me._bufferedRender) {
+			me._bufferedRequest = {
+				duration: config.duration,
+				easing: config.easing,
+				lazy: config.lazy
+			};
+		} else {
+			me.render(config);
+		}
 	},
 
-	inLabelRange: xRange,
-	inXRange: xRange,
-	inYRange: yRange,
+	/**
+	 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
+	 * hook, in which case, plugins will not be called on `afterLayout`.
+	 * @private
+	 */
+	updateLayout: function() {
+		var me = this;
 
-	getCenterPoint: function() {
-		var vm = this._view;
-		return {
-			x: vm.x,
-			y: vm.y
-		};
+		if (core_plugins.notify(me, 'beforeLayout') === false) {
+			return;
+		}
+
+		core_layouts.update(this, this.width, this.height);
+
+		/**
+		 * Provided for backward compatibility, use `afterLayout` instead.
+		 * @method IPlugin#afterScaleUpdate
+		 * @deprecated since version 2.5.0
+		 * @todo remove at version 3
+		 * @private
+		 */
+		core_plugins.notify(me, 'afterScaleUpdate');
+		core_plugins.notify(me, 'afterLayout');
 	},
 
-	getArea: function() {
-		return Math.PI * Math.pow(this._view.radius, 2);
+	/**
+	 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
+	 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
+	 * @private
+	 */
+	updateDatasets: function() {
+		var me = this;
+
+		if (core_plugins.notify(me, 'beforeDatasetsUpdate') === false) {
+			return;
+		}
+
+		for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
+			me.updateDataset(i);
+		}
+
+		core_plugins.notify(me, 'afterDatasetsUpdate');
 	},
 
-	tooltipPosition: function() {
-		var vm = this._view;
-		return {
-			x: vm.x,
-			y: vm.y,
-			padding: vm.radius + vm.borderWidth
+	/**
+	 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
+	 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
+	 * @private
+	 */
+	updateDataset: function(index) {
+		var me = this;
+		var meta = me.getDatasetMeta(index);
+		var args = {
+			meta: meta,
+			index: index
 		};
+
+		if (core_plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
+			return;
+		}
+
+		meta.controller.update();
+
+		core_plugins.notify(me, 'afterDatasetUpdate', [args]);
 	},
 
-	draw: function(chartArea) {
-		var vm = this._view;
-		var model = this._model;
-		var ctx = this._chart.ctx;
-		var pointStyle = vm.pointStyle;
-		var rotation = vm.rotation;
-		var radius = vm.radius;
-		var x = vm.x;
-		var y = vm.y;
-		var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.)
+	render: function(config) {
+		var me = this;
 
-		if (vm.skip) {
-			return;
+		if (!config || typeof config !== 'object') {
+			// backwards compatibility
+			config = {
+				duration: config,
+				lazy: arguments[1]
+			};
 		}
 
-		// Clipping for Points.
-		if (chartArea === undefined || (model.x >= chartArea.left && chartArea.right * errMargin >= model.x && model.y >= chartArea.top && chartArea.bottom * errMargin >= model.y)) {
-			ctx.strokeStyle = vm.borderColor || defaultColor;
-			ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth);
-			ctx.fillStyle = vm.backgroundColor || defaultColor;
-			helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y, rotation);
+		var animationOptions = me.options.animation;
+		var duration = valueOrDefault$8(config.duration, animationOptions && animationOptions.duration);
+		var lazy = config.lazy;
+
+		if (core_plugins.notify(me, 'beforeRender') === false) {
+			return;
 		}
-	}
-});
 
-},{"26":26,"27":27,"46":46}],40:[function(require,module,exports){
-'use strict';
+		var onComplete = function(animation) {
+			core_plugins.notify(me, 'afterRender');
+			helpers$1.callback(animationOptions && animationOptions.onComplete, [animation], me);
+		};
 
-var defaults = require(26);
-var Element = require(27);
+		if (animationOptions && duration) {
+			var animation = new core_animation({
+				numSteps: duration / 16.66, // 60 fps
+				easing: config.easing || animationOptions.easing,
 
-defaults._set('global', {
-	elements: {
-		rectangle: {
-			backgroundColor: defaults.global.defaultColor,
-			borderColor: defaults.global.defaultColor,
-			borderSkipped: 'bottom',
-			borderWidth: 0
+				render: function(chart, animationObject) {
+					var easingFunction = helpers$1.easing.effects[animationObject.easing];
+					var currentStep = animationObject.currentStep;
+					var stepDecimal = currentStep / animationObject.numSteps;
+
+					chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
+				},
+
+				onAnimationProgress: animationOptions.onProgress,
+				onAnimationComplete: onComplete
+			});
+
+			core_animations.addAnimation(me, animation, duration, lazy);
+		} else {
+			me.draw();
+
+			// See https://github.com/chartjs/Chart.js/issues/3781
+			onComplete(new core_animation({numSteps: 0, chart: me}));
 		}
-	}
-});
 
-function isVertical(bar) {
-	return bar._view.width !== undefined;
-}
+		return me;
+	},
 
-/**
- * Helper function to get the bounds of the bar regardless of the orientation
- * @param bar {Chart.Element.Rectangle} the bar
- * @return {Bounds} bounds of the bar
- * @private
- */
-function getBarBounds(bar) {
-	var vm = bar._view;
-	var x1, x2, y1, y2;
-
-	if (isVertical(bar)) {
-		// vertical
-		var halfWidth = vm.width / 2;
-		x1 = vm.x - halfWidth;
-		x2 = vm.x + halfWidth;
-		y1 = Math.min(vm.y, vm.base);
-		y2 = Math.max(vm.y, vm.base);
-	} else {
-		// horizontal bar
-		var halfHeight = vm.height / 2;
-		x1 = Math.min(vm.x, vm.base);
-		x2 = Math.max(vm.x, vm.base);
-		y1 = vm.y - halfHeight;
-		y2 = vm.y + halfHeight;
-	}
+	draw: function(easingValue) {
+		var me = this;
 
-	return {
-		left: x1,
-		top: y1,
-		right: x2,
-		bottom: y2
-	};
-}
+		me.clear();
 
-module.exports = Element.extend({
-	draw: function() {
-		var ctx = this._chart.ctx;
-		var vm = this._view;
-		var left, right, top, bottom, signX, signY, borderSkipped;
-		var borderWidth = vm.borderWidth;
-
-		if (!vm.horizontal) {
-			// bar
-			left = vm.x - vm.width / 2;
-			right = vm.x + vm.width / 2;
-			top = vm.y;
-			bottom = vm.base;
-			signX = 1;
-			signY = bottom > top ? 1 : -1;
-			borderSkipped = vm.borderSkipped || 'bottom';
-		} else {
-			// horizontal bar
-			left = vm.base;
-			right = vm.x;
-			top = vm.y - vm.height / 2;
-			bottom = vm.y + vm.height / 2;
-			signX = right > left ? 1 : -1;
-			signY = 1;
-			borderSkipped = vm.borderSkipped || 'left';
-		}
-
-		// Canvas doesn't allow us to stroke inside the width so we can
-		// adjust the sizes to fit if we're setting a stroke on the line
-		if (borderWidth) {
-			// borderWidth shold be less than bar width and bar height.
-			var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom));
-			borderWidth = borderWidth > barSize ? barSize : borderWidth;
-			var halfStroke = borderWidth / 2;
-			// Adjust borderWidth when bar top position is near vm.base(zero).
-			var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0);
-			var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0);
-			var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0);
-			var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0);
-			// not become a vertical line?
-			if (borderLeft !== borderRight) {
-				top = borderTop;
-				bottom = borderBottom;
-			}
-			// not become a horizontal line?
-			if (borderTop !== borderBottom) {
-				left = borderLeft;
-				right = borderRight;
-			}
+		if (helpers$1.isNullOrUndef(easingValue)) {
+			easingValue = 1;
 		}
 
-		ctx.beginPath();
-		ctx.fillStyle = vm.backgroundColor;
-		ctx.strokeStyle = vm.borderColor;
-		ctx.lineWidth = borderWidth;
-
-		// Corner points, from bottom-left to bottom-right clockwise
-		// | 1 2 |
-		// | 0 3 |
-		var corners = [
-			[left, bottom],
-			[left, top],
-			[right, top],
-			[right, bottom]
-		];
+		me.transition(easingValue);
 
-		// Find first (starting) corner with fallback to 'bottom'
-		var borders = ['bottom', 'left', 'top', 'right'];
-		var startCorner = borders.indexOf(borderSkipped, 0);
-		if (startCorner === -1) {
-			startCorner = 0;
+		if (me.width <= 0 || me.height <= 0) {
+			return;
 		}
 
-		function cornerAt(index) {
-			return corners[(startCorner + index) % 4];
+		if (core_plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
+			return;
 		}
 
-		// Draw rectangle from 'startCorner'
-		var corner = cornerAt(0);
-		ctx.moveTo(corner[0], corner[1]);
+		// Draw all the scales
+		helpers$1.each(me.boxes, function(box) {
+			box.draw(me.chartArea);
+		}, me);
 
-		for (var i = 1; i < 4; i++) {
-			corner = cornerAt(i);
-			ctx.lineTo(corner[0], corner[1]);
-		}
+		me.drawDatasets(easingValue);
+		me._drawTooltip(easingValue);
 
-		ctx.fill();
-		if (borderWidth) {
-			ctx.stroke();
+		core_plugins.notify(me, 'afterDraw', [easingValue]);
+	},
+
+	/**
+	 * @private
+	 */
+	transition: function(easingValue) {
+		var me = this;
+
+		for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
+			if (me.isDatasetVisible(i)) {
+				me.getDatasetMeta(i).controller.transition(easingValue);
+			}
 		}
+
+		me.tooltip.transition(easingValue);
 	},
 
-	height: function() {
-		var vm = this._view;
-		return vm.base - vm.y;
+	/**
+	 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
+	 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
+	 * @private
+	 */
+	drawDatasets: function(easingValue) {
+		var me = this;
+
+		if (core_plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
+			return;
+		}
+
+		// Draw datasets reversed to support proper line stacking
+		for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
+			if (me.isDatasetVisible(i)) {
+				me.drawDataset(i, easingValue);
+			}
+		}
+
+		core_plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
 	},
 
-	inRange: function(mouseX, mouseY) {
-		var inRange = false;
+	/**
+	 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
+	 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
+	 * @private
+	 */
+	drawDataset: function(index, easingValue) {
+		var me = this;
+		var meta = me.getDatasetMeta(index);
+		var args = {
+			meta: meta,
+			index: index,
+			easingValue: easingValue
+		};
 
-		if (this._view) {
-			var bounds = getBarBounds(this);
-			inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
+		if (core_plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
+			return;
 		}
 
-		return inRange;
+		meta.controller.draw(easingValue);
+
+		core_plugins.notify(me, 'afterDatasetDraw', [args]);
 	},
 
-	inLabelRange: function(mouseX, mouseY) {
+	/**
+	 * Draws tooltip unless a plugin returns `false` to the `beforeTooltipDraw`
+	 * hook, in which case, plugins will not be called on `afterTooltipDraw`.
+	 * @private
+	 */
+	_drawTooltip: function(easingValue) {
 		var me = this;
-		if (!me._view) {
-			return false;
+		var tooltip = me.tooltip;
+		var args = {
+			tooltip: tooltip,
+			easingValue: easingValue
+		};
+
+		if (core_plugins.notify(me, 'beforeTooltipDraw', [args]) === false) {
+			return;
 		}
 
-		var inRange = false;
-		var bounds = getBarBounds(me);
+		tooltip.draw();
 
-		if (isVertical(me)) {
-			inRange = mouseX >= bounds.left && mouseX <= bounds.right;
-		} else {
-			inRange = mouseY >= bounds.top && mouseY <= bounds.bottom;
+		core_plugins.notify(me, 'afterTooltipDraw', [args]);
+	},
+
+	/**
+	 * Get the single element that was clicked on
+	 * @return An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
+	 */
+	getElementAtEvent: function(e) {
+		return core_interaction.modes.single(this, e);
+	},
+
+	getElementsAtEvent: function(e) {
+		return core_interaction.modes.label(this, e, {intersect: true});
+	},
+
+	getElementsAtXAxis: function(e) {
+		return core_interaction.modes['x-axis'](this, e, {intersect: true});
+	},
+
+	getElementsAtEventForMode: function(e, mode, options) {
+		var method = core_interaction.modes[mode];
+		if (typeof method === 'function') {
+			return method(this, e, options);
 		}
 
-		return inRange;
+		return [];
 	},
 
-	inXRange: function(mouseX) {
-		var bounds = getBarBounds(this);
-		return mouseX >= bounds.left && mouseX <= bounds.right;
+	getDatasetAtEvent: function(e) {
+		return core_interaction.modes.dataset(this, e, {intersect: true});
 	},
 
-	inYRange: function(mouseY) {
-		var bounds = getBarBounds(this);
-		return mouseY >= bounds.top && mouseY <= bounds.bottom;
+	getDatasetMeta: function(datasetIndex) {
+		var me = this;
+		var dataset = me.data.datasets[datasetIndex];
+		if (!dataset._meta) {
+			dataset._meta = {};
+		}
+
+		var meta = dataset._meta[me.id];
+		if (!meta) {
+			meta = dataset._meta[me.id] = {
+				type: null,
+				data: [],
+				dataset: null,
+				controller: null,
+				hidden: null,			// See isDatasetVisible() comment
+				xAxisID: null,
+				yAxisID: null
+			};
+		}
+
+		return meta;
 	},
 
-	getCenterPoint: function() {
-		var vm = this._view;
-		var x, y;
-		if (isVertical(this)) {
-			x = vm.x;
-			y = (vm.y + vm.base) / 2;
-		} else {
-			x = (vm.x + vm.base) / 2;
-			y = vm.y;
+	getVisibleDatasetCount: function() {
+		var count = 0;
+		for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
+			if (this.isDatasetVisible(i)) {
+				count++;
+			}
 		}
+		return count;
+	},
 
-		return {x: x, y: y};
+	isDatasetVisible: function(datasetIndex) {
+		var meta = this.getDatasetMeta(datasetIndex);
+
+		// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
+		// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
+		return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
 	},
 
-	getArea: function() {
-		var vm = this._view;
-		return vm.width * Math.abs(vm.y - vm.base);
+	generateLegend: function() {
+		return this.options.legendCallback(this);
 	},
 
-	tooltipPosition: function() {
-		var vm = this._view;
-		return {
-			x: vm.x,
-			y: vm.y
-		};
-	}
-});
+	/**
+	 * @private
+	 */
+	destroyDatasetMeta: function(datasetIndex) {
+		var id = this.id;
+		var dataset = this.data.datasets[datasetIndex];
+		var meta = dataset._meta && dataset._meta[id];
 
-},{"26":26,"27":27}],41:[function(require,module,exports){
-'use strict';
+		if (meta) {
+			meta.controller.destroy();
+			delete dataset._meta[id];
+		}
+	},
 
-module.exports = {};
-module.exports.Arc = require(37);
-module.exports.Line = require(38);
-module.exports.Point = require(39);
-module.exports.Rectangle = require(40);
+	destroy: function() {
+		var me = this;
+		var canvas = me.canvas;
+		var i, ilen;
 
-},{"37":37,"38":38,"39":39,"40":40}],42:[function(require,module,exports){
-'use strict';
+		me.stop();
 
-var helpers = require(43);
+		// dataset controllers need to cleanup associated data
+		for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
+			me.destroyDatasetMeta(i);
+		}
+
+		if (canvas) {
+			me.unbindEvents();
+			helpers$1.canvas.clear(me);
+			platform.releaseContext(me.ctx);
+			me.canvas = null;
+			me.ctx = null;
+		}
+
+		core_plugins.notify(me, 'destroy');
+
+		delete Chart.instances[me.id];
+	},
+
+	toBase64Image: function() {
+		return this.canvas.toDataURL.apply(this.canvas, arguments);
+	},
+
+	initToolTip: function() {
+		var me = this;
+		me.tooltip = new core_tooltip({
+			_chart: me,
+			_chartInstance: me, // deprecated, backward compatibility
+			_data: me.data,
+			_options: me.options.tooltips
+		}, me);
+	},
 
-/**
- * @namespace Chart.helpers.canvas
- */
-var exports = module.exports = {
 	/**
-	 * Clears the entire canvas associated to the given `chart`.
-	 * @param {Chart} chart - The chart for which to clear the canvas.
+	 * @private
 	 */
-	clear: function(chart) {
-		chart.ctx.clearRect(0, 0, chart.width, chart.height);
+	bindEvents: function() {
+		var me = this;
+		var listeners = me._listeners = {};
+		var listener = function() {
+			me.eventHandler.apply(me, arguments);
+		};
+
+		helpers$1.each(me.options.events, function(type) {
+			platform.addEventListener(me, type, listener);
+			listeners[type] = listener;
+		});
+
+		// Elements used to detect size change should not be injected for non responsive charts.
+		// See https://github.com/chartjs/Chart.js/issues/2210
+		if (me.options.responsive) {
+			listener = function() {
+				me.resize();
+			};
+
+			platform.addEventListener(me, 'resize', listener);
+			listeners.resize = listener;
+		}
 	},
 
 	/**
-	 * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
-	 * given size (width, height) and the same `radius` for all corners.
-	 * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
-	 * @param {Number} x - The x axis of the coordinate for the rectangle starting point.
-	 * @param {Number} y - The y axis of the coordinate for the rectangle starting point.
-	 * @param {Number} width - The rectangle's width.
-	 * @param {Number} height - The rectangle's height.
-	 * @param {Number} radius - The rounded amount (in pixels) for the four corners.
-	 * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
+	 * @private
 	 */
-	roundedRect: function(ctx, x, y, width, height, radius) {
-		if (radius) {
-			// NOTE(SB) `epsilon` helps to prevent minor artifacts appearing
-			// on Chrome when `r` is exactly half the height or the width.
-			var epsilon = 0.0000001;
-			var r = Math.min(radius, (height / 2) - epsilon, (width / 2) - epsilon);
-
-			ctx.moveTo(x + r, y);
-			ctx.lineTo(x + width - r, y);
-			ctx.arcTo(x + width, y, x + width, y + r, r);
-			ctx.lineTo(x + width, y + height - r);
-			ctx.arcTo(x + width, y + height, x + width - r, y + height, r);
-			ctx.lineTo(x + r, y + height);
-			ctx.arcTo(x, y + height, x, y + height - r, r);
-			ctx.lineTo(x, y + r);
-			ctx.arcTo(x, y, x + r, y, r);
-			ctx.closePath();
-			ctx.moveTo(x, y);
-		} else {
-			ctx.rect(x, y, width, height);
+	unbindEvents: function() {
+		var me = this;
+		var listeners = me._listeners;
+		if (!listeners) {
+			return;
 		}
+
+		delete me._listeners;
+		helpers$1.each(listeners, function(listener, type) {
+			platform.removeEventListener(me, type, listener);
+		});
 	},
 
-	drawPoint: function(ctx, style, radius, x, y, rotation) {
-		var type, edgeLength, xOffset, yOffset, height, size;
-		rotation = rotation || 0;
+	updateHoverStyle: function(elements, mode, enabled) {
+		var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
+		var element, i, ilen;
 
-		if (style && typeof style === 'object') {
-			type = style.toString();
-			if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
-				ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
-				return;
+		for (i = 0, ilen = elements.length; i < ilen; ++i) {
+			element = elements[i];
+			if (element) {
+				this.getDatasetMeta(element._datasetIndex).controller[method](element);
 			}
 		}
+	},
 
-		if (isNaN(radius) || radius <= 0) {
+	/**
+	 * @private
+	 */
+	eventHandler: function(e) {
+		var me = this;
+		var tooltip = me.tooltip;
+
+		if (core_plugins.notify(me, 'beforeEvent', [e]) === false) {
 			return;
 		}
 
-		ctx.save();
-		ctx.translate(x, y);
-		ctx.rotate(rotation * Math.PI / 180);
-		ctx.beginPath();
+		// Buffer any update calls so that renders do not occur
+		me._bufferedRender = true;
+		me._bufferedRequest = null;
 
-		switch (style) {
-		// Default includes circle
-		default:
-			ctx.arc(0, 0, radius, 0, Math.PI * 2);
-			ctx.closePath();
-			break;
-		case 'triangle':
-			edgeLength = 3 * radius / Math.sqrt(3);
-			height = edgeLength * Math.sqrt(3) / 2;
-			ctx.moveTo(-edgeLength / 2, height / 3);
-			ctx.lineTo(edgeLength / 2, height / 3);
-			ctx.lineTo(0, -2 * height / 3);
-			ctx.closePath();
-			break;
-		case 'rect':
-			size = 1 / Math.SQRT2 * radius;
-			ctx.rect(-size, -size, 2 * size, 2 * size);
-			break;
-		case 'rectRounded':
-			var offset = radius / Math.SQRT2;
-			var leftX = -offset;
-			var topY = -offset;
-			var sideSize = Math.SQRT2 * radius;
-
-			// NOTE(SB) the rounded rect implementation changed to use `arcTo`
-			// instead of `quadraticCurveTo` since it generates better results
-			// when rect is almost a circle. 0.425 (instead of 0.5) produces
-			// results visually closer to the previous impl.
-			this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius * 0.425);
-			break;
-		case 'rectRot':
-			size = 1 / Math.SQRT2 * radius;
-			ctx.moveTo(-size, 0);
-			ctx.lineTo(0, size);
-			ctx.lineTo(size, 0);
-			ctx.lineTo(0, -size);
-			ctx.closePath();
-			break;
-		case 'cross':
-			ctx.moveTo(0, radius);
-			ctx.lineTo(0, -radius);
-			ctx.moveTo(-radius, 0);
-			ctx.lineTo(radius, 0);
-			break;
-		case 'crossRot':
-			xOffset = Math.cos(Math.PI / 4) * radius;
-			yOffset = Math.sin(Math.PI / 4) * radius;
-			ctx.moveTo(-xOffset, -yOffset);
-			ctx.lineTo(xOffset, yOffset);
-			ctx.moveTo(-xOffset, yOffset);
-			ctx.lineTo(xOffset, -yOffset);
-			break;
-		case 'star':
-			ctx.moveTo(0, radius);
-			ctx.lineTo(0, -radius);
-			ctx.moveTo(-radius, 0);
-			ctx.lineTo(radius, 0);
-			xOffset = Math.cos(Math.PI / 4) * radius;
-			yOffset = Math.sin(Math.PI / 4) * radius;
-			ctx.moveTo(-xOffset, -yOffset);
-			ctx.lineTo(xOffset, yOffset);
-			ctx.moveTo(-xOffset, yOffset);
-			ctx.lineTo(xOffset, -yOffset);
-			break;
-		case 'line':
-			ctx.moveTo(-radius, 0);
-			ctx.lineTo(radius, 0);
-			break;
-		case 'dash':
-			ctx.moveTo(0, 0);
-			ctx.lineTo(radius, 0);
-			break;
+		var changed = me.handleEvent(e);
+		// for smooth tooltip animations issue #4989
+		// the tooltip should be the source of change
+		// Animation check workaround:
+		// tooltip._start will be null when tooltip isn't animating
+		if (tooltip) {
+			changed = tooltip._start
+				? tooltip.handleEvent(e)
+				: changed | tooltip.handleEvent(e);
 		}
 
-		ctx.fill();
-		ctx.stroke();
-		ctx.restore();
-	},
+		core_plugins.notify(me, 'afterEvent', [e]);
 
-	clipArea: function(ctx, area) {
-		ctx.save();
-		ctx.beginPath();
-		ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
-		ctx.clip();
-	},
+		var bufferedRequest = me._bufferedRequest;
+		if (bufferedRequest) {
+			// If we have an update that was triggered, we need to do a normal render
+			me.render(bufferedRequest);
+		} else if (changed && !me.animating) {
+			// If entering, leaving, or changing elements, animate the change via pivot
+			me.stop();
 
-	unclipArea: function(ctx) {
-		ctx.restore();
+			// We only need to render at this point. Updating will cause scales to be
+			// recomputed generating flicker & using more memory than necessary.
+			me.render({
+				duration: me.options.hover.animationDuration,
+				lazy: true
+			});
+		}
+
+		me._bufferedRender = false;
+		me._bufferedRequest = null;
+
+		return me;
 	},
 
-	lineTo: function(ctx, previous, target, flip) {
-		if (target.steppedLine) {
-			if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) {
-				ctx.lineTo(previous.x, target.y);
-			} else {
-				ctx.lineTo(target.x, previous.y);
+	/**
+	 * Handle an event
+	 * @private
+	 * @param {IEvent} event the event to handle
+	 * @return {boolean} true if the chart needs to re-render
+	 */
+	handleEvent: function(e) {
+		var me = this;
+		var options = me.options || {};
+		var hoverOptions = options.hover;
+		var changed = false;
+
+		me.lastActive = me.lastActive || [];
+
+		// Find Active Elements for hover and tooltips
+		if (e.type === 'mouseout') {
+			me.active = [];
+		} else {
+			me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
+		}
+
+		// Invoke onHover hook
+		// Need to call with native event here to not break backwards compatibility
+		helpers$1.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);
+
+		if (e.type === 'mouseup' || e.type === 'click') {
+			if (options.onClick) {
+				// Use e.native here for backwards compatibility
+				options.onClick.call(me, e.native, me.active);
 			}
-			ctx.lineTo(target.x, target.y);
-			return;
 		}
 
-		if (!target.tension) {
-			ctx.lineTo(target.x, target.y);
-			return;
+		// Remove styling for last active (even if it may still be active)
+		if (me.lastActive.length) {
+			me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
 		}
 
-		ctx.bezierCurveTo(
-			flip ? previous.controlPointPreviousX : previous.controlPointNextX,
-			flip ? previous.controlPointPreviousY : previous.controlPointNextY,
-			flip ? target.controlPointNextX : target.controlPointPreviousX,
-			flip ? target.controlPointNextY : target.controlPointPreviousY,
-			target.x,
-			target.y);
+		// Built in hover styling
+		if (me.active.length && hoverOptions.mode) {
+			me.updateHoverStyle(me.active, hoverOptions.mode, true);
+		}
+
+		changed = !helpers$1.arrayEquals(me.active, me.lastActive);
+
+		// Remember Last Actives
+		me.lastActive = me.active;
+
+		return changed;
 	}
-};
+});
+
+/**
+ * NOTE(SB) We actually don't use this container anymore but we need to keep it
+ * for backward compatibility. Though, it can still be useful for plugins that
+ * would need to work on multiple charts?!
+ */
+Chart.instances = {};
+
+var core_controller = Chart;
 
 // DEPRECATIONS
 
 /**
- * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
- * @namespace Chart.helpers.clear
- * @deprecated since version 2.7.0
+ * Provided for backward compatibility, use Chart instead.
+ * @class Chart.Controller
+ * @deprecated since version 2.6
  * @todo remove at version 3
  * @private
  */
-helpers.clear = exports.clear;
+Chart.Controller = Chart;
 
 /**
- * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
- * @namespace Chart.helpers.drawRoundedRectangle
- * @deprecated since version 2.7.0
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart
+ * @deprecated since version 2.8
  * @todo remove at version 3
  * @private
  */
-helpers.drawRoundedRectangle = function(ctx) {
-	ctx.beginPath();
-	exports.roundedRect.apply(exports, arguments);
+Chart.types = {};
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.helpers.configMerge
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.configMerge = mergeConfig;
+
+/**
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.helpers.scaleMerge
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ * @private
+ */
+helpers$1.scaleMerge = mergeScaleConfig;
+
+var core_helpers = function() {
+
+	// -- Basic js utility methods
+
+	helpers$1.where = function(collection, filterCallback) {
+		if (helpers$1.isArray(collection) && Array.prototype.filter) {
+			return collection.filter(filterCallback);
+		}
+		var filtered = [];
+
+		helpers$1.each(collection, function(item) {
+			if (filterCallback(item)) {
+				filtered.push(item);
+			}
+		});
+
+		return filtered;
+	};
+	helpers$1.findIndex = Array.prototype.findIndex ?
+		function(array, callback, scope) {
+			return array.findIndex(callback, scope);
+		} :
+		function(array, callback, scope) {
+			scope = scope === undefined ? array : scope;
+			for (var i = 0, ilen = array.length; i < ilen; ++i) {
+				if (callback.call(scope, array[i], i, array)) {
+					return i;
+				}
+			}
+			return -1;
+		};
+	helpers$1.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
+		// Default to start of the array
+		if (helpers$1.isNullOrUndef(startIndex)) {
+			startIndex = -1;
+		}
+		for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
+			var currentItem = arrayToSearch[i];
+			if (filterCallback(currentItem)) {
+				return currentItem;
+			}
+		}
+	};
+	helpers$1.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
+		// Default to end of the array
+		if (helpers$1.isNullOrUndef(startIndex)) {
+			startIndex = arrayToSearch.length;
+		}
+		for (var i = startIndex - 1; i >= 0; i--) {
+			var currentItem = arrayToSearch[i];
+			if (filterCallback(currentItem)) {
+				return currentItem;
+			}
+		}
+	};
+
+	// -- Math methods
+	helpers$1.isNumber = function(n) {
+		return !isNaN(parseFloat(n)) && isFinite(n);
+	};
+	helpers$1.almostEquals = function(x, y, epsilon) {
+		return Math.abs(x - y) < epsilon;
+	};
+	helpers$1.almostWhole = function(x, epsilon) {
+		var rounded = Math.round(x);
+		return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
+	};
+	helpers$1.max = function(array) {
+		return array.reduce(function(max, value) {
+			if (!isNaN(value)) {
+				return Math.max(max, value);
+			}
+			return max;
+		}, Number.NEGATIVE_INFINITY);
+	};
+	helpers$1.min = function(array) {
+		return array.reduce(function(min, value) {
+			if (!isNaN(value)) {
+				return Math.min(min, value);
+			}
+			return min;
+		}, Number.POSITIVE_INFINITY);
+	};
+	helpers$1.sign = Math.sign ?
+		function(x) {
+			return Math.sign(x);
+		} :
+		function(x) {
+			x = +x; // convert to a number
+			if (x === 0 || isNaN(x)) {
+				return x;
+			}
+			return x > 0 ? 1 : -1;
+		};
+	helpers$1.log10 = Math.log10 ?
+		function(x) {
+			return Math.log10(x);
+		} :
+		function(x) {
+			var exponent = Math.log(x) * Math.LOG10E; // Math.LOG10E = 1 / Math.LN10.
+			// Check for whole powers of 10,
+			// which due to floating point rounding error should be corrected.
+			var powerOf10 = Math.round(exponent);
+			var isPowerOf10 = x === Math.pow(10, powerOf10);
+
+			return isPowerOf10 ? powerOf10 : exponent;
+		};
+	helpers$1.toRadians = function(degrees) {
+		return degrees * (Math.PI / 180);
+	};
+	helpers$1.toDegrees = function(radians) {
+		return radians * (180 / Math.PI);
+	};
+
+	/**
+	 * Returns the number of decimal places
+	 * i.e. the number of digits after the decimal point, of the value of this Number.
+	 * @param {number} x - A number.
+	 * @returns {number} The number of decimal places.
+	 * @private
+	 */
+	helpers$1._decimalPlaces = function(x) {
+		if (!helpers$1.isFinite(x)) {
+			return;
+		}
+		var e = 1;
+		var p = 0;
+		while (Math.round(x * e) / e !== x) {
+			e *= 10;
+			p++;
+		}
+		return p;
+	};
+
+	// Gets the angle from vertical upright to the point about a centre.
+	helpers$1.getAngleFromPoint = function(centrePoint, anglePoint) {
+		var distanceFromXCenter = anglePoint.x - centrePoint.x;
+		var distanceFromYCenter = anglePoint.y - centrePoint.y;
+		var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);
+
+		var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);
+
+		if (angle < (-0.5 * Math.PI)) {
+			angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
+		}
+
+		return {
+			angle: angle,
+			distance: radialDistanceFromCenter
+		};
+	};
+	helpers$1.distanceBetweenPoints = function(pt1, pt2) {
+		return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
+	};
+
+	/**
+	 * Provided for backward compatibility, not available anymore
+	 * @function Chart.helpers.aliasPixel
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 */
+	helpers$1.aliasPixel = function(pixelWidth) {
+		return (pixelWidth % 2 === 0) ? 0 : 0.5;
+	};
+
+	/**
+	 * Returns the aligned pixel value to avoid anti-aliasing blur
+	 * @param {Chart} chart - The chart instance.
+	 * @param {number} pixel - A pixel value.
+	 * @param {number} width - The width of the element.
+	 * @returns {number} The aligned pixel value.
+	 * @private
+	 */
+	helpers$1._alignPixel = function(chart, pixel, width) {
+		var devicePixelRatio = chart.currentDevicePixelRatio;
+		var halfWidth = width / 2;
+		return Math.round((pixel - halfWidth) * devicePixelRatio) / devicePixelRatio + halfWidth;
+	};
+
+	helpers$1.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
+		// Props to Rob Spencer at scaled innovation for his post on splining between points
+		// http://scaledinnovation.com/analytics/splines/aboutSplines.html
+
+		// This function must also respect "skipped" points
+
+		var previous = firstPoint.skip ? middlePoint : firstPoint;
+		var current = middlePoint;
+		var next = afterPoint.skip ? middlePoint : afterPoint;
+
+		var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
+		var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));
+
+		var s01 = d01 / (d01 + d12);
+		var s12 = d12 / (d01 + d12);
+
+		// If all points are the same, s01 & s02 will be inf
+		s01 = isNaN(s01) ? 0 : s01;
+		s12 = isNaN(s12) ? 0 : s12;
+
+		var fa = t * s01; // scaling factor for triangle Ta
+		var fb = t * s12;
+
+		return {
+			previous: {
+				x: current.x - fa * (next.x - previous.x),
+				y: current.y - fa * (next.y - previous.y)
+			},
+			next: {
+				x: current.x + fb * (next.x - previous.x),
+				y: current.y + fb * (next.y - previous.y)
+			}
+		};
+	};
+	helpers$1.EPSILON = Number.EPSILON || 1e-14;
+	helpers$1.splineCurveMonotone = function(points) {
+		// This function calculates Bézier control points in a similar way than |splineCurve|,
+		// but preserves monotonicity of the provided data and ensures no local extremums are added
+		// between the dataset discrete points due to the interpolation.
+		// See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation
+
+		var pointsWithTangents = (points || []).map(function(point) {
+			return {
+				model: point._model,
+				deltaK: 0,
+				mK: 0
+			};
+		});
+
+		// Calculate slopes (deltaK) and initialize tangents (mK)
+		var pointsLen = pointsWithTangents.length;
+		var i, pointBefore, pointCurrent, pointAfter;
+		for (i = 0; i < pointsLen; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			if (pointCurrent.model.skip) {
+				continue;
+			}
+
+			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
+			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
+			if (pointAfter && !pointAfter.model.skip) {
+				var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);
+
+				// In the case of two points that appear at the same x pixel, slopeDeltaX is 0
+				pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
+			}
+
+			if (!pointBefore || pointBefore.model.skip) {
+				pointCurrent.mK = pointCurrent.deltaK;
+			} else if (!pointAfter || pointAfter.model.skip) {
+				pointCurrent.mK = pointBefore.deltaK;
+			} else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
+				pointCurrent.mK = 0;
+			} else {
+				pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
+			}
+		}
+
+		// Adjust tangents to ensure monotonic properties
+		var alphaK, betaK, tauK, squaredMagnitude;
+		for (i = 0; i < pointsLen - 1; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			pointAfter = pointsWithTangents[i + 1];
+			if (pointCurrent.model.skip || pointAfter.model.skip) {
+				continue;
+			}
+
+			if (helpers$1.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
+				pointCurrent.mK = pointAfter.mK = 0;
+				continue;
+			}
+
+			alphaK = pointCurrent.mK / pointCurrent.deltaK;
+			betaK = pointAfter.mK / pointCurrent.deltaK;
+			squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
+			if (squaredMagnitude <= 9) {
+				continue;
+			}
+
+			tauK = 3 / Math.sqrt(squaredMagnitude);
+			pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
+			pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
+		}
+
+		// Compute control points
+		var deltaX;
+		for (i = 0; i < pointsLen; ++i) {
+			pointCurrent = pointsWithTangents[i];
+			if (pointCurrent.model.skip) {
+				continue;
+			}
+
+			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
+			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
+			if (pointBefore && !pointBefore.model.skip) {
+				deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
+				pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
+				pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
+			}
+			if (pointAfter && !pointAfter.model.skip) {
+				deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
+				pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
+				pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
+			}
+		}
+	};
+	helpers$1.nextItem = function(collection, index, loop) {
+		if (loop) {
+			return index >= collection.length - 1 ? collection[0] : collection[index + 1];
+		}
+		return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
+	};
+	helpers$1.previousItem = function(collection, index, loop) {
+		if (loop) {
+			return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
+		}
+		return index <= 0 ? collection[0] : collection[index - 1];
+	};
+	// Implementation of the nice number algorithm used in determining where axis labels will go
+	helpers$1.niceNum = function(range, round) {
+		var exponent = Math.floor(helpers$1.log10(range));
+		var fraction = range / Math.pow(10, exponent);
+		var niceFraction;
+
+		if (round) {
+			if (fraction < 1.5) {
+				niceFraction = 1;
+			} else if (fraction < 3) {
+				niceFraction = 2;
+			} else if (fraction < 7) {
+				niceFraction = 5;
+			} else {
+				niceFraction = 10;
+			}
+		} else if (fraction <= 1.0) {
+			niceFraction = 1;
+		} else if (fraction <= 2) {
+			niceFraction = 2;
+		} else if (fraction <= 5) {
+			niceFraction = 5;
+		} else {
+			niceFraction = 10;
+		}
+
+		return niceFraction * Math.pow(10, exponent);
+	};
+	// Request animation polyfill - https://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
+	helpers$1.requestAnimFrame = (function() {
+		if (typeof window === 'undefined') {
+			return function(callback) {
+				callback();
+			};
+		}
+		return window.requestAnimationFrame ||
+			window.webkitRequestAnimationFrame ||
+			window.mozRequestAnimationFrame ||
+			window.oRequestAnimationFrame ||
+			window.msRequestAnimationFrame ||
+			function(callback) {
+				return window.setTimeout(callback, 1000 / 60);
+			};
+	}());
+	// -- DOM methods
+	helpers$1.getRelativePosition = function(evt, chart) {
+		var mouseX, mouseY;
+		var e = evt.originalEvent || evt;
+		var canvas = evt.target || evt.srcElement;
+		var boundingRect = canvas.getBoundingClientRect();
+
+		var touches = e.touches;
+		if (touches && touches.length > 0) {
+			mouseX = touches[0].clientX;
+			mouseY = touches[0].clientY;
+
+		} else {
+			mouseX = e.clientX;
+			mouseY = e.clientY;
+		}
+
+		// Scale mouse coordinates into canvas coordinates
+		// by following the pattern laid out by 'jerryj' in the comments of
+		// https://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
+		var paddingLeft = parseFloat(helpers$1.getStyle(canvas, 'padding-left'));
+		var paddingTop = parseFloat(helpers$1.getStyle(canvas, 'padding-top'));
+		var paddingRight = parseFloat(helpers$1.getStyle(canvas, 'padding-right'));
+		var paddingBottom = parseFloat(helpers$1.getStyle(canvas, 'padding-bottom'));
+		var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
+		var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;
+
+		// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
+		// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
+		mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
+		mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);
+
+		return {
+			x: mouseX,
+			y: mouseY
+		};
+
+	};
+
+	// Private helper function to convert max-width/max-height values that may be percentages into a number
+	function parseMaxStyle(styleValue, node, parentProperty) {
+		var valueInPixels;
+		if (typeof styleValue === 'string') {
+			valueInPixels = parseInt(styleValue, 10);
+
+			if (styleValue.indexOf('%') !== -1) {
+				// percentage * size in dimension
+				valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
+			}
+		} else {
+			valueInPixels = styleValue;
+		}
+
+		return valueInPixels;
+	}
+
+	/**
+	 * Returns if the given value contains an effective constraint.
+	 * @private
+	 */
+	function isConstrainedValue(value) {
+		return value !== undefined && value !== null && value !== 'none';
+	}
+
+	/**
+	 * Returns the max width or height of the given DOM node in a cross-browser compatible fashion
+	 * @param {HTMLElement} domNode - the node to check the constraint on
+	 * @param {string} maxStyle - the style that defines the maximum for the direction we are using ('max-width' / 'max-height')
+	 * @param {string} percentageProperty - property of parent to use when calculating width as a percentage
+	 * @see {@link https://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser}
+	 */
+	function getConstraintDimension(domNode, maxStyle, percentageProperty) {
+		var view = document.defaultView;
+		var parentNode = helpers$1._getParentNode(domNode);
+		var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
+		var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
+		var hasCNode = isConstrainedValue(constrainedNode);
+		var hasCContainer = isConstrainedValue(constrainedContainer);
+		var infinity = Number.POSITIVE_INFINITY;
+
+		if (hasCNode || hasCContainer) {
+			return Math.min(
+				hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
+				hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
+		}
+
+		return 'none';
+	}
+	// returns Number or undefined if no constraint
+	helpers$1.getConstraintWidth = function(domNode) {
+		return getConstraintDimension(domNode, 'max-width', 'clientWidth');
+	};
+	// returns Number or undefined if no constraint
+	helpers$1.getConstraintHeight = function(domNode) {
+		return getConstraintDimension(domNode, 'max-height', 'clientHeight');
+	};
+	/**
+	 * @private
+ 	 */
+	helpers$1._calculatePadding = function(container, padding, parentDimension) {
+		padding = helpers$1.getStyle(container, padding);
+
+		return padding.indexOf('%') > -1 ? parentDimension * parseInt(padding, 10) / 100 : parseInt(padding, 10);
+	};
+	/**
+	 * @private
+	 */
+	helpers$1._getParentNode = function(domNode) {
+		var parent = domNode.parentNode;
+		if (parent && parent.toString() === '[object ShadowRoot]') {
+			parent = parent.host;
+		}
+		return parent;
+	};
+	helpers$1.getMaximumWidth = function(domNode) {
+		var container = helpers$1._getParentNode(domNode);
+		if (!container) {
+			return domNode.clientWidth;
+		}
+
+		var clientWidth = container.clientWidth;
+		var paddingLeft = helpers$1._calculatePadding(container, 'padding-left', clientWidth);
+		var paddingRight = helpers$1._calculatePadding(container, 'padding-right', clientWidth);
+
+		var w = clientWidth - paddingLeft - paddingRight;
+		var cw = helpers$1.getConstraintWidth(domNode);
+		return isNaN(cw) ? w : Math.min(w, cw);
+	};
+	helpers$1.getMaximumHeight = function(domNode) {
+		var container = helpers$1._getParentNode(domNode);
+		if (!container) {
+			return domNode.clientHeight;
+		}
+
+		var clientHeight = container.clientHeight;
+		var paddingTop = helpers$1._calculatePadding(container, 'padding-top', clientHeight);
+		var paddingBottom = helpers$1._calculatePadding(container, 'padding-bottom', clientHeight);
+
+		var h = clientHeight - paddingTop - paddingBottom;
+		var ch = helpers$1.getConstraintHeight(domNode);
+		return isNaN(ch) ? h : Math.min(h, ch);
+	};
+	helpers$1.getStyle = function(el, property) {
+		return el.currentStyle ?
+			el.currentStyle[property] :
+			document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
+	};
+	helpers$1.retinaScale = function(chart, forceRatio) {
+		var pixelRatio = chart.currentDevicePixelRatio = forceRatio || (typeof window !== 'undefined' && window.devicePixelRatio) || 1;
+		if (pixelRatio === 1) {
+			return;
+		}
+
+		var canvas = chart.canvas;
+		var height = chart.height;
+		var width = chart.width;
+
+		canvas.height = height * pixelRatio;
+		canvas.width = width * pixelRatio;
+		chart.ctx.scale(pixelRatio, pixelRatio);
+
+		// If no style has been set on the canvas, the render size is used as display size,
+		// making the chart visually bigger, so let's enforce it to the "correct" values.
+		// See https://github.com/chartjs/Chart.js/issues/3575
+		if (!canvas.style.height && !canvas.style.width) {
+			canvas.style.height = height + 'px';
+			canvas.style.width = width + 'px';
+		}
+	};
+	// -- Canvas methods
+	helpers$1.fontString = function(pixelSize, fontStyle, fontFamily) {
+		return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
+	};
+	helpers$1.longestText = function(ctx, font, arrayOfThings, cache) {
+		cache = cache || {};
+		var data = cache.data = cache.data || {};
+		var gc = cache.garbageCollect = cache.garbageCollect || [];
+
+		if (cache.font !== font) {
+			data = cache.data = {};
+			gc = cache.garbageCollect = [];
+			cache.font = font;
+		}
+
+		ctx.font = font;
+		var longest = 0;
+		helpers$1.each(arrayOfThings, function(thing) {
+			// Undefined strings and arrays should not be measured
+			if (thing !== undefined && thing !== null && helpers$1.isArray(thing) !== true) {
+				longest = helpers$1.measureText(ctx, data, gc, longest, thing);
+			} else if (helpers$1.isArray(thing)) {
+				// if it is an array lets measure each element
+				// to do maybe simplify this function a bit so we can do this more recursively?
+				helpers$1.each(thing, function(nestedThing) {
+					// Undefined strings and arrays should not be measured
+					if (nestedThing !== undefined && nestedThing !== null && !helpers$1.isArray(nestedThing)) {
+						longest = helpers$1.measureText(ctx, data, gc, longest, nestedThing);
+					}
+				});
+			}
+		});
+
+		var gcLen = gc.length / 2;
+		if (gcLen > arrayOfThings.length) {
+			for (var i = 0; i < gcLen; i++) {
+				delete data[gc[i]];
+			}
+			gc.splice(0, gcLen);
+		}
+		return longest;
+	};
+	helpers$1.measureText = function(ctx, data, gc, longest, string) {
+		var textWidth = data[string];
+		if (!textWidth) {
+			textWidth = data[string] = ctx.measureText(string).width;
+			gc.push(string);
+		}
+		if (textWidth > longest) {
+			longest = textWidth;
+		}
+		return longest;
+	};
+	helpers$1.numberOfLabelLines = function(arrayOfThings) {
+		var numberOfLines = 1;
+		helpers$1.each(arrayOfThings, function(thing) {
+			if (helpers$1.isArray(thing)) {
+				if (thing.length > numberOfLines) {
+					numberOfLines = thing.length;
+				}
+			}
+		});
+		return numberOfLines;
+	};
+
+	helpers$1.color = !chartjsColor ?
+		function(value) {
+			console.error('Color.js not found!');
+			return value;
+		} :
+		function(value) {
+			/* global CanvasGradient */
+			if (value instanceof CanvasGradient) {
+				value = core_defaults.global.defaultColor;
+			}
+
+			return chartjsColor(value);
+		};
+
+	helpers$1.getHoverColor = function(colorValue) {
+		/* global CanvasPattern */
+		return (colorValue instanceof CanvasPattern || colorValue instanceof CanvasGradient) ?
+			colorValue :
+			helpers$1.color(colorValue).saturate(0.5).darken(0.1).rgbString();
+	};
 };
 
-},{"43":43}],43:[function(require,module,exports){
-'use strict';
+function abstract() {
+	throw new Error(
+		'This method is not implemented: either no adapter can ' +
+		'be found or an incomplete integration was provided.'
+	);
+}
 
 /**
- * @namespace Chart.helpers
+ * Date adapter (current used by the time scale)
+ * @namespace Chart._adapters._date
+ * @memberof Chart._adapters
+ * @private
  */
-var helpers = {
+
+/**
+ * Currently supported unit string values.
+ * @typedef {('millisecond'|'second'|'minute'|'hour'|'day'|'week'|'month'|'quarter'|'year')}
+ * @memberof Chart._adapters._date
+ * @name Unit
+ */
+
+/**
+ * @class
+ */
+function DateAdapter(options) {
+	this.options = options || {};
+}
+
+helpers$1.extend(DateAdapter.prototype, /** @lends DateAdapter */ {
 	/**
-	 * An empty function that can be used, for example, for optional callback.
+	 * Returns a map of time formats for the supported formatting units defined
+	 * in Unit as well as 'datetime' representing a detailed date/time string.
+	 * @returns {{string: string}}
 	 */
-	noop: function() {},
+	formats: abstract,
 
 	/**
-	 * Returns a unique id, sequentially generated from a global variable.
-	 * @returns {Number}
+	 * Parses the given `value` and return the associated timestamp.
+	 * @param {any} value - the value to parse (usually comes from the data)
+	 * @param {string} [format] - the expected data format
+	 * @returns {(number|null)}
 	 * @function
 	 */
-	uid: (function() {
-		var id = 0;
-		return function() {
-			return id++;
-		};
-	}()),
+	parse: abstract,
 
 	/**
-	 * Returns true if `value` is neither null nor undefined, else returns false.
-	 * @param {*} value - The value to test.
-	 * @returns {Boolean}
-	 * @since 2.7.0
+	 * Returns the formatted date in the specified `format` for a given `timestamp`.
+	 * @param {number} timestamp - the timestamp to format
+	 * @param {string} format - the date/time token
+	 * @return {string}
+	 * @function
 	 */
-	isNullOrUndef: function(value) {
-		return value === null || typeof value === 'undefined';
-	},
+	format: abstract,
 
 	/**
-	 * Returns true if `value` is an array, else returns false.
-	 * @param {*} value - The value to test.
-	 * @returns {Boolean}
+	 * Adds the specified `amount` of `unit` to the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {number} amount - the amount to add
+	 * @param {Unit} unit - the unit as string
+	 * @return {number}
 	 * @function
 	 */
-	isArray: Array.isArray ? Array.isArray : function(value) {
-		return Object.prototype.toString.call(value) === '[object Array]';
-	},
+	add: abstract,
 
 	/**
-	 * Returns true if `value` is an object (excluding null), else returns false.
-	 * @param {*} value - The value to test.
-	 * @returns {Boolean}
-	 * @since 2.7.0
+	 * Returns the number of `unit` between the given timestamps.
+	 * @param {number} max - the input timestamp (reference)
+	 * @param {number} min - the timestamp to substract
+	 * @param {Unit} unit - the unit as string
+	 * @return {number}
+	 * @function
 	 */
-	isObject: function(value) {
-		return value !== null && Object.prototype.toString.call(value) === '[object Object]';
-	},
+	diff: abstract,
 
 	/**
-	 * Returns `value` if defined, else returns `defaultValue`.
-	 * @param {*} value - The value to return if defined.
-	 * @param {*} defaultValue - The value to return if `value` is undefined.
-	 * @returns {*}
+	 * Returns start of `unit` for the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {Unit} unit - the unit as string
+	 * @param {number} [weekday] - the ISO day of the week with 1 being Monday
+	 * and 7 being Sunday (only needed if param *unit* is `isoWeek`).
+	 * @function
 	 */
-	valueOrDefault: function(value, defaultValue) {
-		return typeof value === 'undefined' ? defaultValue : value;
-	},
+	startOf: abstract,
 
 	/**
-	 * Returns value at the given `index` in array if defined, else returns `defaultValue`.
-	 * @param {Array} value - The array to lookup for value at `index`.
-	 * @param {Number} index - The index in `value` to lookup for value.
-	 * @param {*} defaultValue - The value to return if `value[index]` is undefined.
-	 * @returns {*}
+	 * Returns end of `unit` for the given `timestamp`.
+	 * @param {number} timestamp - the input timestamp
+	 * @param {Unit} unit - the unit as string
+	 * @function
 	 */
-	valueAtIndexOrDefault: function(value, index, defaultValue) {
-		return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
-	},
+	endOf: abstract,
+
+	// DEPRECATIONS
 
 	/**
-	 * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
-	 * value returned by `fn`. If `fn` is not a function, this method returns undefined.
-	 * @param {Function} fn - The function to call.
-	 * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
-	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
-	 * @returns {*}
+	 * Provided for backward compatibility for scale.getValueForPixel(),
+	 * this method should be overridden only by the moment adapter.
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 * @private
 	 */
-	callback: function(fn, args, thisArg) {
-		if (fn && typeof fn.call === 'function') {
-			return fn.apply(thisArg, args);
-		}
-	},
+	_create: function(value) {
+		return value;
+	}
+});
+
+DateAdapter.override = function(members) {
+	helpers$1.extend(DateAdapter.prototype, members);
+};
+
+var _date = DateAdapter;
 
+var core_adapters = {
+	_date: _date
+};
+
+/**
+ * Namespace to hold static tick generation functions
+ * @namespace Chart.Ticks
+ */
+var core_ticks = {
 	/**
-	 * Note(SB) for performance sake, this method should only be used when loopable type
-	 * is unknown or in none intensive code (not called often and small loopable). Else
-	 * it's preferable to use a regular for() loop and save extra function calls.
-	 * @param {Object|Array} loopable - The object or array to be iterated.
-	 * @param {Function} fn - The function to call for each item.
-	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
-	 * @param {Boolean} [reverse] - If true, iterates backward on the loopable.
+	 * Namespace to hold formatters for different types of ticks
+	 * @namespace Chart.Ticks.formatters
 	 */
-	each: function(loopable, fn, thisArg, reverse) {
-		var i, len, keys;
-		if (helpers.isArray(loopable)) {
-			len = loopable.length;
-			if (reverse) {
-				for (i = len - 1; i >= 0; i--) {
-					fn.call(thisArg, loopable[i], i);
+	formatters: {
+		/**
+		 * Formatter for value labels
+		 * @method Chart.Ticks.formatters.values
+		 * @param value the value to display
+		 * @return {string|string[]} the label to display
+		 */
+		values: function(value) {
+			return helpers$1.isArray(value) ? value : '' + value;
+		},
+
+		/**
+		 * Formatter for linear numeric ticks
+		 * @method Chart.Ticks.formatters.linear
+		 * @param tickValue {number} the value to be formatted
+		 * @param index {number} the position of the tickValue parameter in the ticks array
+		 * @param ticks {number[]} the list of ticks being converted
+		 * @return {string} string representation of the tickValue parameter
+		 */
+		linear: function(tickValue, index, ticks) {
+			// If we have lots of ticks, don't use the ones
+			var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];
+
+			// If we have a number like 2.5 as the delta, figure out how many decimal places we need
+			if (Math.abs(delta) > 1) {
+				if (tickValue !== Math.floor(tickValue)) {
+					// not an integer
+					delta = tickValue - Math.floor(tickValue);
 				}
-			} else {
-				for (i = 0; i < len; i++) {
-					fn.call(thisArg, loopable[i], i);
+			}
+
+			var logDelta = helpers$1.log10(Math.abs(delta));
+			var tickString = '';
+
+			if (tickValue !== 0) {
+				var maxTick = Math.max(Math.abs(ticks[0]), Math.abs(ticks[ticks.length - 1]));
+				if (maxTick < 1e-4) { // all ticks are small numbers; use scientific notation
+					var logTick = helpers$1.log10(Math.abs(tickValue));
+					tickString = tickValue.toExponential(Math.floor(logTick) - Math.floor(logDelta));
+				} else {
+					var numDecimal = -1 * Math.floor(logDelta);
+					numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
+					tickString = tickValue.toFixed(numDecimal);
 				}
+			} else {
+				tickString = '0'; // never show decimal places for 0
 			}
-		} else if (helpers.isObject(loopable)) {
-			keys = Object.keys(loopable);
-			len = keys.length;
-			for (i = 0; i < len; i++) {
-				fn.call(thisArg, loopable[keys[i]], keys[i]);
+
+			return tickString;
+		},
+
+		logarithmic: function(tickValue, index, ticks) {
+			var remain = tickValue / (Math.pow(10, Math.floor(helpers$1.log10(tickValue))));
+
+			if (tickValue === 0) {
+				return '0';
+			} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
+				return tickValue.toExponential();
 			}
+			return '';
+		}
+	}
+};
+
+var valueOrDefault$9 = helpers$1.valueOrDefault;
+var valueAtIndexOrDefault = helpers$1.valueAtIndexOrDefault;
+
+core_defaults._set('scale', {
+	display: true,
+	position: 'left',
+	offset: false,
+
+	// grid line settings
+	gridLines: {
+		display: true,
+		color: 'rgba(0, 0, 0, 0.1)',
+		lineWidth: 1,
+		drawBorder: true,
+		drawOnChartArea: true,
+		drawTicks: true,
+		tickMarkLength: 10,
+		zeroLineWidth: 1,
+		zeroLineColor: 'rgba(0,0,0,0.25)',
+		zeroLineBorderDash: [],
+		zeroLineBorderDashOffset: 0.0,
+		offsetGridLines: false,
+		borderDash: [],
+		borderDashOffset: 0.0
+	},
+
+	// scale label
+	scaleLabel: {
+		// display property
+		display: false,
+
+		// actual label
+		labelString: '',
+
+		// top/bottom padding
+		padding: {
+			top: 4,
+			bottom: 4
 		}
 	},
 
+	// label settings
+	ticks: {
+		beginAtZero: false,
+		minRotation: 0,
+		maxRotation: 50,
+		mirror: false,
+		padding: 0,
+		reverse: false,
+		display: true,
+		autoSkip: true,
+		autoSkipPadding: 0,
+		labelOffset: 0,
+		// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
+		callback: core_ticks.formatters.values,
+		minor: {},
+		major: {}
+	}
+});
+
+function labelsFromTicks(ticks) {
+	var labels = [];
+	var i, ilen;
+
+	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+		labels.push(ticks[i].label);
+	}
+
+	return labels;
+}
+
+function getPixelForGridLine(scale, index, offsetGridLines) {
+	var lineValue = scale.getPixelForTick(index);
+
+	if (offsetGridLines) {
+		if (scale.getTicks().length === 1) {
+			lineValue -= scale.isHorizontal() ?
+				Math.max(lineValue - scale.left, scale.right - lineValue) :
+				Math.max(lineValue - scale.top, scale.bottom - lineValue);
+		} else if (index === 0) {
+			lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
+		} else {
+			lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
+		}
+	}
+	return lineValue;
+}
+
+function computeTextSize(context, tick, font) {
+	return helpers$1.isArray(tick) ?
+		helpers$1.longestText(context, font, tick) :
+		context.measureText(tick).width;
+}
+
+var core_scale = core_element.extend({
 	/**
-	 * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
-	 * @see http://stackoverflow.com/a/14853974
-	 * @param {Array} a0 - The array to compare
-	 * @param {Array} a1 - The array to compare
-	 * @returns {Boolean}
+	 * Get the padding needed for the scale
+	 * @method getPadding
+	 * @private
+	 * @returns {Padding} the necessary padding
 	 */
-	arrayEquals: function(a0, a1) {
-		var i, ilen, v0, v1;
+	getPadding: function() {
+		var me = this;
+		return {
+			left: me.paddingLeft || 0,
+			top: me.paddingTop || 0,
+			right: me.paddingRight || 0,
+			bottom: me.paddingBottom || 0
+		};
+	},
 
-		if (!a0 || !a1 || a0.length !== a1.length) {
-			return false;
+	/**
+	 * Returns the scale tick objects ({label, major})
+	 * @since 2.7
+	 */
+	getTicks: function() {
+		return this._ticks;
+	},
+
+	// These methods are ordered by lifecyle. Utilities then follow.
+	// Any function defined here is inherited by all scale types.
+	// Any function can be extended by the scale type
+
+	mergeTicksOptions: function() {
+		var ticks = this.options.ticks;
+		if (ticks.minor === false) {
+			ticks.minor = {
+				display: false
+			};
+		}
+		if (ticks.major === false) {
+			ticks.major = {
+				display: false
+			};
+		}
+		for (var key in ticks) {
+			if (key !== 'major' && key !== 'minor') {
+				if (typeof ticks.minor[key] === 'undefined') {
+					ticks.minor[key] = ticks[key];
+				}
+				if (typeof ticks.major[key] === 'undefined') {
+					ticks.major[key] = ticks[key];
+				}
+			}
 		}
+	},
+	beforeUpdate: function() {
+		helpers$1.callback(this.options.beforeUpdate, [this]);
+	},
 
-		for (i = 0, ilen = a0.length; i < ilen; ++i) {
-			v0 = a0[i];
-			v1 = a1[i];
+	update: function(maxWidth, maxHeight, margins) {
+		var me = this;
+		var i, ilen, labels, label, ticks, tick;
 
-			if (v0 instanceof Array && v1 instanceof Array) {
-				if (!helpers.arrayEquals(v0, v1)) {
-					return false;
+		// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
+		me.beforeUpdate();
+
+		// Absorb the master measurements
+		me.maxWidth = maxWidth;
+		me.maxHeight = maxHeight;
+		me.margins = helpers$1.extend({
+			left: 0,
+			right: 0,
+			top: 0,
+			bottom: 0
+		}, margins);
+
+		me._maxLabelLines = 0;
+		me.longestLabelWidth = 0;
+		me.longestTextCache = me.longestTextCache || {};
+
+		// Dimensions
+		me.beforeSetDimensions();
+		me.setDimensions();
+		me.afterSetDimensions();
+
+		// Data min/max
+		me.beforeDataLimits();
+		me.determineDataLimits();
+		me.afterDataLimits();
+
+		// Ticks - `this.ticks` is now DEPRECATED!
+		// Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
+		// and must not be accessed directly from outside this class. `this.ticks` being
+		// around for long time and not marked as private, we can't change its structure
+		// without unexpected breaking changes. If you need to access the scale ticks,
+		// use scale.getTicks() instead.
+
+		me.beforeBuildTicks();
+
+		// New implementations should return an array of objects but for BACKWARD COMPAT,
+		// we still support no return (`this.ticks` internally set by calling this method).
+		ticks = me.buildTicks() || [];
+
+		// Allow modification of ticks in callback.
+		ticks = me.afterBuildTicks(ticks) || ticks;
+
+		me.beforeTickToLabelConversion();
+
+		// New implementations should return the formatted tick labels but for BACKWARD
+		// COMPAT, we still support no return (`this.ticks` internally changed by calling
+		// this method and supposed to contain only string values).
+		labels = me.convertTicksToLabels(ticks) || me.ticks;
+
+		me.afterTickToLabelConversion();
+
+		me.ticks = labels;   // BACKWARD COMPATIBILITY
+
+		// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!
+
+		// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
+		for (i = 0, ilen = labels.length; i < ilen; ++i) {
+			label = labels[i];
+			tick = ticks[i];
+			if (!tick) {
+				ticks.push(tick = {
+					label: label,
+					major: false
+				});
+			} else {
+				tick.label = label;
+			}
+		}
+
+		me._ticks = ticks;
+
+		// Tick Rotation
+		me.beforeCalculateTickRotation();
+		me.calculateTickRotation();
+		me.afterCalculateTickRotation();
+		// Fit
+		me.beforeFit();
+		me.fit();
+		me.afterFit();
+		//
+		me.afterUpdate();
+
+		return me.minSize;
+
+	},
+	afterUpdate: function() {
+		helpers$1.callback(this.options.afterUpdate, [this]);
+	},
+
+	//
+
+	beforeSetDimensions: function() {
+		helpers$1.callback(this.options.beforeSetDimensions, [this]);
+	},
+	setDimensions: function() {
+		var me = this;
+		// Set the unconstrained dimension before label rotation
+		if (me.isHorizontal()) {
+			// Reset position before calculating rotation
+			me.width = me.maxWidth;
+			me.left = 0;
+			me.right = me.width;
+		} else {
+			me.height = me.maxHeight;
+
+			// Reset position before calculating rotation
+			me.top = 0;
+			me.bottom = me.height;
+		}
+
+		// Reset padding
+		me.paddingLeft = 0;
+		me.paddingTop = 0;
+		me.paddingRight = 0;
+		me.paddingBottom = 0;
+	},
+	afterSetDimensions: function() {
+		helpers$1.callback(this.options.afterSetDimensions, [this]);
+	},
+
+	// Data limits
+	beforeDataLimits: function() {
+		helpers$1.callback(this.options.beforeDataLimits, [this]);
+	},
+	determineDataLimits: helpers$1.noop,
+	afterDataLimits: function() {
+		helpers$1.callback(this.options.afterDataLimits, [this]);
+	},
+
+	//
+	beforeBuildTicks: function() {
+		helpers$1.callback(this.options.beforeBuildTicks, [this]);
+	},
+	buildTicks: helpers$1.noop,
+	afterBuildTicks: function(ticks) {
+		var me = this;
+		// ticks is empty for old axis implementations here
+		if (helpers$1.isArray(ticks) && ticks.length) {
+			return helpers$1.callback(me.options.afterBuildTicks, [me, ticks]);
+		}
+		// Support old implementations (that modified `this.ticks` directly in buildTicks)
+		me.ticks = helpers$1.callback(me.options.afterBuildTicks, [me, me.ticks]) || me.ticks;
+		return ticks;
+	},
+
+	beforeTickToLabelConversion: function() {
+		helpers$1.callback(this.options.beforeTickToLabelConversion, [this]);
+	},
+	convertTicksToLabels: function() {
+		var me = this;
+		// Convert ticks to strings
+		var tickOpts = me.options.ticks;
+		me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
+	},
+	afterTickToLabelConversion: function() {
+		helpers$1.callback(this.options.afterTickToLabelConversion, [this]);
+	},
+
+	//
+
+	beforeCalculateTickRotation: function() {
+		helpers$1.callback(this.options.beforeCalculateTickRotation, [this]);
+	},
+	calculateTickRotation: function() {
+		var me = this;
+		var context = me.ctx;
+		var tickOpts = me.options.ticks;
+		var labels = labelsFromTicks(me._ticks);
+
+		// Get the width of each grid by calculating the difference
+		// between x offsets between 0 and 1.
+		var tickFont = helpers$1.options._parseFont(tickOpts);
+		context.font = tickFont.string;
+
+		var labelRotation = tickOpts.minRotation || 0;
+
+		if (labels.length && me.options.display && me.isHorizontal()) {
+			var originalLabelWidth = helpers$1.longestText(context, tickFont.string, labels, me.longestTextCache);
+			var labelWidth = originalLabelWidth;
+			var cosRotation, sinRotation;
+
+			// Allow 3 pixels x2 padding either side for label readability
+			var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;
+
+			// Max label rotation can be set or default to 90 - also act as a loop counter
+			while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
+				var angleRadians = helpers$1.toRadians(labelRotation);
+				cosRotation = Math.cos(angleRadians);
+				sinRotation = Math.sin(angleRadians);
+
+				if (sinRotation * originalLabelWidth > me.maxHeight) {
+					// go back one step
+					labelRotation--;
+					break;
 				}
-			} else if (v0 !== v1) {
-				// NOTE: two different object instances will never be equal: {x:20} != {x:20}
-				return false;
+
+				labelRotation++;
+				labelWidth = cosRotation * originalLabelWidth;
 			}
 		}
 
-		return true;
+		me.labelRotation = labelRotation;
+	},
+	afterCalculateTickRotation: function() {
+		helpers$1.callback(this.options.afterCalculateTickRotation, [this]);
 	},
 
-	/**
-	 * Returns a deep copy of `source` without keeping references on objects and arrays.
-	 * @param {*} source - The value to clone.
-	 * @returns {*}
-	 */
-	clone: function(source) {
-		if (helpers.isArray(source)) {
-			return source.map(helpers.clone);
+	//
+
+	beforeFit: function() {
+		helpers$1.callback(this.options.beforeFit, [this]);
+	},
+	fit: function() {
+		var me = this;
+		// Reset
+		var minSize = me.minSize = {
+			width: 0,
+			height: 0
+		};
+
+		var labels = labelsFromTicks(me._ticks);
+
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+		var scaleLabelOpts = opts.scaleLabel;
+		var gridLineOpts = opts.gridLines;
+		var display = me._isVisible();
+		var position = opts.position;
+		var isHorizontal = me.isHorizontal();
+
+		var parseFont = helpers$1.options._parseFont;
+		var tickFont = parseFont(tickOpts);
+		var tickMarkLength = opts.gridLines.tickMarkLength;
+
+		// Width
+		if (isHorizontal) {
+			// subtract the margins to line up with the chartArea if we are a full width scale
+			minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
+		} else {
+			minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
 		}
 
-		if (helpers.isObject(source)) {
-			var target = {};
-			var keys = Object.keys(source);
-			var klen = keys.length;
-			var k = 0;
+		// height
+		if (isHorizontal) {
+			minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
+		} else {
+			minSize.height = me.maxHeight; // fill all the height
+		}
 
-			for (; k < klen; ++k) {
-				target[keys[k]] = helpers.clone(source[keys[k]]);
+		// Are we showing a title for the scale?
+		if (scaleLabelOpts.display && display) {
+			var scaleLabelFont = parseFont(scaleLabelOpts);
+			var scaleLabelPadding = helpers$1.options.toPadding(scaleLabelOpts.padding);
+			var deltaHeight = scaleLabelFont.lineHeight + scaleLabelPadding.height;
+
+			if (isHorizontal) {
+				minSize.height += deltaHeight;
+			} else {
+				minSize.width += deltaHeight;
 			}
+		}
 
-			return target;
+		// Don't bother fitting the ticks if we are not showing the labels
+		if (tickOpts.display && display) {
+			var largestTextWidth = helpers$1.longestText(me.ctx, tickFont.string, labels, me.longestTextCache);
+			var tallestLabelHeightInLines = helpers$1.numberOfLabelLines(labels);
+			var lineSpace = tickFont.size * 0.5;
+			var tickPadding = me.options.ticks.padding;
+
+			// Store max number of lines and widest label for _autoSkip
+			me._maxLabelLines = tallestLabelHeightInLines;
+			me.longestLabelWidth = largestTextWidth;
+
+			if (isHorizontal) {
+				var angleRadians = helpers$1.toRadians(me.labelRotation);
+				var cosRotation = Math.cos(angleRadians);
+				var sinRotation = Math.sin(angleRadians);
+
+				// TODO - improve this calculation
+				var labelHeight = (sinRotation * largestTextWidth)
+					+ (tickFont.lineHeight * tallestLabelHeightInLines)
+					+ lineSpace; // padding
+
+				minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);
+
+				me.ctx.font = tickFont.string;
+				var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.string);
+				var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.string);
+				var offsetLeft = me.getPixelForTick(0) - me.left;
+				var offsetRight = me.right - me.getPixelForTick(labels.length - 1);
+				var paddingLeft, paddingRight;
+
+				// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
+				// which means that the right padding is dominated by the font height
+				if (me.labelRotation !== 0) {
+					paddingLeft = position === 'bottom' ? (cosRotation * firstLabelWidth) : (cosRotation * lineSpace);
+					paddingRight = position === 'bottom' ? (cosRotation * lineSpace) : (cosRotation * lastLabelWidth);
+				} else {
+					paddingLeft = firstLabelWidth / 2;
+					paddingRight = lastLabelWidth / 2;
+				}
+				me.paddingLeft = Math.max(paddingLeft - offsetLeft, 0) + 3; // add 3 px to move away from canvas edges
+				me.paddingRight = Math.max(paddingRight - offsetRight, 0) + 3;
+			} else {
+				// A vertical axis is more constrained by the width. Labels are the
+				// dominant factor here, so get that length first and account for padding
+				if (tickOpts.mirror) {
+					largestTextWidth = 0;
+				} else {
+					// use lineSpace for consistency with horizontal axis
+					// tickPadding is not implemented for horizontal
+					largestTextWidth += tickPadding + lineSpace;
+				}
+
+				minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);
+
+				me.paddingTop = tickFont.size / 2;
+				me.paddingBottom = tickFont.size / 2;
+			}
 		}
 
-		return source;
+		me.handleMargins();
+
+		me.width = minSize.width;
+		me.height = minSize.height;
 	},
 
 	/**
-	 * The default merger when Chart.helpers.merge is called without merger option.
-	 * Note(SB): this method is also used by configMerge and scaleMerge as fallback.
+	 * Handle margins and padding interactions
 	 * @private
 	 */
-	_merger: function(key, target, source, options) {
-		var tval = target[key];
-		var sval = source[key];
+	handleMargins: function() {
+		var me = this;
+		if (me.margins) {
+			me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
+			me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
+			me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
+			me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
+		}
+	},
 
-		if (helpers.isObject(tval) && helpers.isObject(sval)) {
-			helpers.merge(tval, sval, options);
-		} else {
-			target[key] = helpers.clone(sval);
+	afterFit: function() {
+		helpers$1.callback(this.options.afterFit, [this]);
+	},
+
+	// Shared Methods
+	isHorizontal: function() {
+		return this.options.position === 'top' || this.options.position === 'bottom';
+	},
+	isFullWidth: function() {
+		return (this.options.fullWidth);
+	},
+
+	// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
+	getRightValue: function(rawValue) {
+		// Null and undefined values first
+		if (helpers$1.isNullOrUndef(rawValue)) {
+			return NaN;
+		}
+		// isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
+		if ((typeof rawValue === 'number' || rawValue instanceof Number) && !isFinite(rawValue)) {
+			return NaN;
+		}
+		// If it is in fact an object, dive in one more level
+		if (rawValue) {
+			if (this.isHorizontal()) {
+				if (rawValue.x !== undefined) {
+					return this.getRightValue(rawValue.x);
+				}
+			} else if (rawValue.y !== undefined) {
+				return this.getRightValue(rawValue.y);
+			}
 		}
+
+		// Value is good, return it
+		return rawValue;
 	},
 
 	/**
-	 * Merges source[key] in target[key] only if target[key] is undefined.
-	 * @private
+	 * Used to get the value to display in the tooltip for the data at the given index
+	 * @param index
+	 * @param datasetIndex
 	 */
-	_mergerIf: function(key, target, source) {
-		var tval = target[key];
-		var sval = source[key];
+	getLabelForIndex: helpers$1.noop,
 
-		if (helpers.isObject(tval) && helpers.isObject(sval)) {
-			helpers.mergeIf(tval, sval);
-		} else if (!target.hasOwnProperty(key)) {
-			target[key] = helpers.clone(sval);
+	/**
+	 * Returns the location of the given data point. Value can either be an index or a numerical value
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 * @param value
+	 * @param index
+	 * @param datasetIndex
+	 */
+	getPixelForValue: helpers$1.noop,
+
+	/**
+	 * Used to get the data value from a given pixel. This is the inverse of getPixelForValue
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 * @param pixel
+	 */
+	getValueForPixel: helpers$1.noop,
+
+	/**
+	 * Returns the location of the tick at the given index
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 */
+	getPixelForTick: function(index) {
+		var me = this;
+		var offset = me.options.offset;
+		if (me.isHorizontal()) {
+			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
+			var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
+			var pixel = (tickWidth * index) + me.paddingLeft;
+
+			if (offset) {
+				pixel += tickWidth / 2;
+			}
+
+			var finalVal = me.left + pixel;
+			finalVal += me.isFullWidth() ? me.margins.left : 0;
+			return finalVal;
 		}
+		var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
+		return me.top + (index * (innerHeight / (me._ticks.length - 1)));
 	},
 
 	/**
-	 * Recursively deep copies `source` properties into `target` with the given `options`.
-	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
-	 * @param {Object} target - The target object in which all sources are merged into.
-	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
-	 * @param {Object} [options] - Merging options:
-	 * @param {Function} [options.merger] - The merge method (key, target, source, options)
-	 * @returns {Object} The `target` object.
+	 * Utility for getting the pixel location of a percentage of scale
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
 	 */
-	merge: function(target, source, options) {
-		var sources = helpers.isArray(source) ? source : [source];
-		var ilen = sources.length;
-		var merge, i, keys, klen, k;
+	getPixelForDecimal: function(decimal) {
+		var me = this;
+		if (me.isHorizontal()) {
+			var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
+			var valueOffset = (innerWidth * decimal) + me.paddingLeft;
 
-		if (!helpers.isObject(target)) {
-			return target;
+			var finalVal = me.left + valueOffset;
+			finalVal += me.isFullWidth() ? me.margins.left : 0;
+			return finalVal;
 		}
+		return me.top + (decimal * me.height);
+	},
 
-		options = options || {};
-		merge = options.merger || helpers._merger;
+	/**
+	 * Returns the pixel for the minimum chart value
+	 * The coordinate (0, 0) is at the upper-left corner of the canvas
+	 */
+	getBasePixel: function() {
+		return this.getPixelForValue(this.getBaseValue());
+	},
 
-		for (i = 0; i < ilen; ++i) {
-			source = sources[i];
-			if (!helpers.isObject(source)) {
-				continue;
-			}
+	getBaseValue: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
 
-			keys = Object.keys(source);
-			for (k = 0, klen = keys.length; k < klen; ++k) {
-				merge(keys[k], target, source, options);
-			}
+		return me.beginAtZero ? 0 :
+			min < 0 && max < 0 ? max :
+			min > 0 && max > 0 ? min :
+			0;
+	},
+
+	/**
+	 * Returns a subset of ticks to be plotted to avoid overlapping labels.
+	 * @private
+	 */
+	_autoSkip: function(ticks) {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var optionTicks = me.options.ticks.minor;
+		var tickCount = ticks.length;
+		var skipRatio = false;
+		var maxTicks = optionTicks.maxTicksLimit;
+
+		// Total space needed to display all ticks. First and last ticks are
+		// drawn as their center at end of axis, so tickCount-1
+		var ticksLength = me._tickSize() * (tickCount - 1);
+
+		// Axis length
+		var axisLength = isHorizontal
+			? me.width - (me.paddingLeft + me.paddingRight)
+			: me.height - (me.paddingTop + me.PaddingBottom);
+
+		var result = [];
+		var i, tick;
+
+		if (ticksLength > axisLength) {
+			skipRatio = 1 + Math.floor(ticksLength / axisLength);
 		}
 
-		return target;
+		// if they defined a max number of optionTicks,
+		// increase skipRatio until that number is met
+		if (tickCount > maxTicks) {
+			skipRatio = Math.max(skipRatio, 1 + Math.floor(tickCount / maxTicks));
+		}
+
+		for (i = 0; i < tickCount; i++) {
+			tick = ticks[i];
+
+			if (skipRatio > 1 && i % skipRatio > 0) {
+				// leave tick in place but make sure it's not displayed (#4635)
+				delete tick.label;
+			}
+			result.push(tick);
+		}
+		return result;
 	},
 
 	/**
-	 * Recursively deep copies `source` properties into `target` *only* if not defined in target.
-	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
-	 * @param {Object} target - The target object in which all sources are merged into.
-	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
-	 * @returns {Object} The `target` object.
+	 * @private
 	 */
-	mergeIf: function(target, source) {
-		return helpers.merge(target, source, {merger: helpers._mergerIf});
+	_tickSize: function() {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var optionTicks = me.options.ticks.minor;
+
+		// Calculate space needed by label in axis direction.
+		var rot = helpers$1.toRadians(me.labelRotation);
+		var cos = Math.abs(Math.cos(rot));
+		var sin = Math.abs(Math.sin(rot));
+
+		var padding = optionTicks.autoSkipPadding || 0;
+		var w = (me.longestLabelWidth + padding) || 0;
+
+		var tickFont = helpers$1.options._parseFont(optionTicks);
+		var h = (me._maxLabelLines * tickFont.lineHeight + padding) || 0;
+
+		// Calculate space needed for 1 tick in axis direction.
+		return isHorizontal
+			? h * cos > w * sin ? w / cos : h / sin
+			: h * sin < w * cos ? h / cos : w / sin;
 	},
 
 	/**
-	 * Applies the contents of two or more objects together into the first object.
-	 * @param {Object} target - The target object in which all objects are merged into.
-	 * @param {Object} arg1 - Object containing additional properties to merge in target.
-	 * @param {Object} argN - Additional objects containing properties to merge in target.
-	 * @returns {Object} The `target` object.
+	 * @private
 	 */
-	extend: function(target) {
-		var setFn = function(value, key) {
-			target[key] = value;
-		};
-		for (var i = 1, ilen = arguments.length; i < ilen; ++i) {
-			helpers.each(arguments[i], setFn);
+	_isVisible: function() {
+		var me = this;
+		var chart = me.chart;
+		var display = me.options.display;
+		var i, ilen, meta;
+
+		if (display !== 'auto') {
+			return !!display;
 		}
-		return target;
+
+		// When 'auto', the scale is visible if at least one associated dataset is visible.
+		for (i = 0, ilen = chart.data.datasets.length; i < ilen; ++i) {
+			if (chart.isDatasetVisible(i)) {
+				meta = chart.getDatasetMeta(i);
+				if (meta.xAxisID === me.id || meta.yAxisID === me.id) {
+					return true;
+				}
+			}
+		}
+
+		return false;
 	},
 
 	/**
-	 * Basic javascript inheritance based on the model created in Backbone.js
+	 * Actually draw the scale on the canvas
+	 * @param {object} chartArea - the area of the chart to draw full grid lines on
 	 */
-	inherits: function(extensions) {
+	draw: function(chartArea) {
 		var me = this;
-		var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
-			return me.apply(this, arguments);
-		};
+		var options = me.options;
 
-		var Surrogate = function() {
-			this.constructor = ChartElement;
-		};
+		if (!me._isVisible()) {
+			return;
+		}
 
-		Surrogate.prototype = me.prototype;
-		ChartElement.prototype = new Surrogate();
-		ChartElement.extend = helpers.inherits;
+		var chart = me.chart;
+		var context = me.ctx;
+		var globalDefaults = core_defaults.global;
+		var defaultFontColor = globalDefaults.defaultFontColor;
+		var optionTicks = options.ticks.minor;
+		var optionMajorTicks = options.ticks.major || optionTicks;
+		var gridLines = options.gridLines;
+		var scaleLabel = options.scaleLabel;
+		var position = options.position;
 
-		if (extensions) {
-			helpers.extend(ChartElement.prototype, extensions);
+		var isRotated = me.labelRotation !== 0;
+		var isMirrored = optionTicks.mirror;
+		var isHorizontal = me.isHorizontal();
+
+		var parseFont = helpers$1.options._parseFont;
+		var ticks = optionTicks.display && optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
+		var tickFontColor = valueOrDefault$9(optionTicks.fontColor, defaultFontColor);
+		var tickFont = parseFont(optionTicks);
+		var lineHeight = tickFont.lineHeight;
+		var majorTickFontColor = valueOrDefault$9(optionMajorTicks.fontColor, defaultFontColor);
+		var majorTickFont = parseFont(optionMajorTicks);
+		var tickPadding = optionTicks.padding;
+		var labelOffset = optionTicks.labelOffset;
+
+		var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;
+
+		var scaleLabelFontColor = valueOrDefault$9(scaleLabel.fontColor, defaultFontColor);
+		var scaleLabelFont = parseFont(scaleLabel);
+		var scaleLabelPadding = helpers$1.options.toPadding(scaleLabel.padding);
+		var labelRotationRadians = helpers$1.toRadians(me.labelRotation);
+
+		var itemsToDraw = [];
+
+		var axisWidth = gridLines.drawBorder ? valueAtIndexOrDefault(gridLines.lineWidth, 0, 0) : 0;
+		var alignPixel = helpers$1._alignPixel;
+		var borderValue, tickStart, tickEnd;
+
+		if (position === 'top') {
+			borderValue = alignPixel(chart, me.bottom, axisWidth);
+			tickStart = me.bottom - tl;
+			tickEnd = borderValue - axisWidth / 2;
+		} else if (position === 'bottom') {
+			borderValue = alignPixel(chart, me.top, axisWidth);
+			tickStart = borderValue + axisWidth / 2;
+			tickEnd = me.top + tl;
+		} else if (position === 'left') {
+			borderValue = alignPixel(chart, me.right, axisWidth);
+			tickStart = me.right - tl;
+			tickEnd = borderValue - axisWidth / 2;
+		} else {
+			borderValue = alignPixel(chart, me.left, axisWidth);
+			tickStart = borderValue + axisWidth / 2;
+			tickEnd = me.left + tl;
 		}
 
-		ChartElement.__super__ = me.prototype;
-		return ChartElement;
-	}
-};
+		var epsilon = 0.0000001; // 0.0000001 is margin in pixels for Accumulated error.
 
-module.exports = helpers;
+		helpers$1.each(ticks, function(tick, index) {
+			// autoskipper skipped this tick (#4635)
+			if (helpers$1.isNullOrUndef(tick.label)) {
+				return;
+			}
 
-// DEPRECATIONS
+			var label = tick.label;
+			var lineWidth, lineColor, borderDash, borderDashOffset;
+			if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
+				// Draw the first index specially
+				lineWidth = gridLines.zeroLineWidth;
+				lineColor = gridLines.zeroLineColor;
+				borderDash = gridLines.zeroLineBorderDash || [];
+				borderDashOffset = gridLines.zeroLineBorderDashOffset || 0.0;
+			} else {
+				lineWidth = valueAtIndexOrDefault(gridLines.lineWidth, index);
+				lineColor = valueAtIndexOrDefault(gridLines.color, index);
+				borderDash = gridLines.borderDash || [];
+				borderDashOffset = gridLines.borderDashOffset || 0.0;
+			}
 
-/**
- * Provided for backward compatibility, use Chart.helpers.callback instead.
- * @function Chart.helpers.callCallback
- * @deprecated since version 2.6.0
- * @todo remove at version 3
- * @private
- */
-helpers.callCallback = helpers.callback;
+			// Common properties
+			var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY, textOffset, textAlign;
+			var labelCount = helpers$1.isArray(label) ? label.length : 1;
+			var lineValue = getPixelForGridLine(me, index, gridLines.offsetGridLines);
 
-/**
- * Provided for backward compatibility, use Array.prototype.indexOf instead.
- * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
- * @function Chart.helpers.indexOf
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.indexOf = function(array, item, fromIndex) {
-	return Array.prototype.indexOf.call(array, item, fromIndex);
-};
+			if (isHorizontal) {
+				var labelYOffset = tl + tickPadding;
 
-/**
- * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
- * @function Chart.helpers.getValueOrDefault
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.getValueOrDefault = helpers.valueOrDefault;
+				if (lineValue < me.left - epsilon) {
+					lineColor = 'rgba(0,0,0,0)';
+				}
 
-/**
- * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
- * @function Chart.helpers.getValueAtIndexOrDefault
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
+				tx1 = tx2 = x1 = x2 = alignPixel(chart, lineValue, lineWidth);
+				ty1 = tickStart;
+				ty2 = tickEnd;
+				labelX = me.getPixelForTick(index) + labelOffset; // x values for optionTicks (need to consider offsetLabel option)
 
-},{}],44:[function(require,module,exports){
-'use strict';
+				if (position === 'top') {
+					y1 = alignPixel(chart, chartArea.top, axisWidth) + axisWidth / 2;
+					y2 = chartArea.bottom;
+					textOffset = ((!isRotated ? 0.5 : 1) - labelCount) * lineHeight;
+					textAlign = !isRotated ? 'center' : 'left';
+					labelY = me.bottom - labelYOffset;
+				} else {
+					y1 = chartArea.top;
+					y2 = alignPixel(chart, chartArea.bottom, axisWidth) - axisWidth / 2;
+					textOffset = (!isRotated ? 0.5 : 0) * lineHeight;
+					textAlign = !isRotated ? 'center' : 'right';
+					labelY = me.top + labelYOffset;
+				}
+			} else {
+				var labelXOffset = (isMirrored ? 0 : tl) + tickPadding;
 
-var helpers = require(43);
+				if (lineValue < me.top - epsilon) {
+					lineColor = 'rgba(0,0,0,0)';
+				}
 
-/**
- * Easing functions adapted from Robert Penner's easing equations.
- * @namespace Chart.helpers.easingEffects
- * @see http://www.robertpenner.com/easing/
- */
-var effects = {
-	linear: function(t) {
-		return t;
-	},
+				tx1 = tickStart;
+				tx2 = tickEnd;
+				ty1 = ty2 = y1 = y2 = alignPixel(chart, lineValue, lineWidth);
+				labelY = me.getPixelForTick(index) + labelOffset;
+				textOffset = (1 - labelCount) * lineHeight / 2;
+
+				if (position === 'left') {
+					x1 = alignPixel(chart, chartArea.left, axisWidth) + axisWidth / 2;
+					x2 = chartArea.right;
+					textAlign = isMirrored ? 'left' : 'right';
+					labelX = me.right - labelXOffset;
+				} else {
+					x1 = chartArea.left;
+					x2 = alignPixel(chart, chartArea.right, axisWidth) - axisWidth / 2;
+					textAlign = isMirrored ? 'right' : 'left';
+					labelX = me.left + labelXOffset;
+				}
+			}
 
-	easeInQuad: function(t) {
-		return t * t;
-	},
+			itemsToDraw.push({
+				tx1: tx1,
+				ty1: ty1,
+				tx2: tx2,
+				ty2: ty2,
+				x1: x1,
+				y1: y1,
+				x2: x2,
+				y2: y2,
+				labelX: labelX,
+				labelY: labelY,
+				glWidth: lineWidth,
+				glColor: lineColor,
+				glBorderDash: borderDash,
+				glBorderDashOffset: borderDashOffset,
+				rotation: -1 * labelRotationRadians,
+				label: label,
+				major: tick.major,
+				textOffset: textOffset,
+				textAlign: textAlign
+			});
+		});
 
-	easeOutQuad: function(t) {
-		return -t * (t - 2);
-	},
+		// Draw all of the tick labels, tick marks, and grid lines at the correct places
+		helpers$1.each(itemsToDraw, function(itemToDraw) {
+			var glWidth = itemToDraw.glWidth;
+			var glColor = itemToDraw.glColor;
 
-	easeInOutQuad: function(t) {
-		if ((t /= 0.5) < 1) {
-			return 0.5 * t * t;
+			if (gridLines.display && glWidth && glColor) {
+				context.save();
+				context.lineWidth = glWidth;
+				context.strokeStyle = glColor;
+				if (context.setLineDash) {
+					context.setLineDash(itemToDraw.glBorderDash);
+					context.lineDashOffset = itemToDraw.glBorderDashOffset;
+				}
+
+				context.beginPath();
+
+				if (gridLines.drawTicks) {
+					context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
+					context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
+				}
+
+				if (gridLines.drawOnChartArea) {
+					context.moveTo(itemToDraw.x1, itemToDraw.y1);
+					context.lineTo(itemToDraw.x2, itemToDraw.y2);
+				}
+
+				context.stroke();
+				context.restore();
+			}
+
+			if (optionTicks.display) {
+				// Make sure we draw text in the correct color and font
+				context.save();
+				context.translate(itemToDraw.labelX, itemToDraw.labelY);
+				context.rotate(itemToDraw.rotation);
+				context.font = itemToDraw.major ? majorTickFont.string : tickFont.string;
+				context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
+				context.textBaseline = 'middle';
+				context.textAlign = itemToDraw.textAlign;
+
+				var label = itemToDraw.label;
+				var y = itemToDraw.textOffset;
+				if (helpers$1.isArray(label)) {
+					for (var i = 0; i < label.length; ++i) {
+						// We just make sure the multiline element is a string here..
+						context.fillText('' + label[i], 0, y);
+						y += lineHeight;
+					}
+				} else {
+					context.fillText(label, 0, y);
+				}
+				context.restore();
+			}
+		});
+
+		if (scaleLabel.display) {
+			// Draw the scale label
+			var scaleLabelX;
+			var scaleLabelY;
+			var rotation = 0;
+			var halfLineHeight = scaleLabelFont.lineHeight / 2;
+
+			if (isHorizontal) {
+				scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
+				scaleLabelY = position === 'bottom'
+					? me.bottom - halfLineHeight - scaleLabelPadding.bottom
+					: me.top + halfLineHeight + scaleLabelPadding.top;
+			} else {
+				var isLeft = position === 'left';
+				scaleLabelX = isLeft
+					? me.left + halfLineHeight + scaleLabelPadding.top
+					: me.right - halfLineHeight - scaleLabelPadding.top;
+				scaleLabelY = me.top + ((me.bottom - me.top) / 2);
+				rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
+			}
+
+			context.save();
+			context.translate(scaleLabelX, scaleLabelY);
+			context.rotate(rotation);
+			context.textAlign = 'center';
+			context.textBaseline = 'middle';
+			context.fillStyle = scaleLabelFontColor; // render in correct colour
+			context.font = scaleLabelFont.string;
+			context.fillText(scaleLabel.labelString, 0, 0);
+			context.restore();
 		}
-		return -0.5 * ((--t) * (t - 2) - 1);
-	},
 
-	easeInCubic: function(t) {
-		return t * t * t;
-	},
+		if (axisWidth) {
+			// Draw the line at the edge of the axis
+			var firstLineWidth = axisWidth;
+			var lastLineWidth = valueAtIndexOrDefault(gridLines.lineWidth, ticks.length - 1, 0);
+			var x1, x2, y1, y2;
 
-	easeOutCubic: function(t) {
-		return (t = t - 1) * t * t + 1;
-	},
+			if (isHorizontal) {
+				x1 = alignPixel(chart, me.left, firstLineWidth) - firstLineWidth / 2;
+				x2 = alignPixel(chart, me.right, lastLineWidth) + lastLineWidth / 2;
+				y1 = y2 = borderValue;
+			} else {
+				y1 = alignPixel(chart, me.top, firstLineWidth) - firstLineWidth / 2;
+				y2 = alignPixel(chart, me.bottom, lastLineWidth) + lastLineWidth / 2;
+				x1 = x2 = borderValue;
+			}
 
-	easeInOutCubic: function(t) {
-		if ((t /= 0.5) < 1) {
-			return 0.5 * t * t * t;
+			context.lineWidth = axisWidth;
+			context.strokeStyle = valueAtIndexOrDefault(gridLines.color, 0);
+			context.beginPath();
+			context.moveTo(x1, y1);
+			context.lineTo(x2, y2);
+			context.stroke();
 		}
-		return 0.5 * ((t -= 2) * t * t + 2);
-	},
+	}
+});
 
-	easeInQuart: function(t) {
-		return t * t * t * t;
-	},
+var defaultConfig = {
+	position: 'bottom'
+};
 
-	easeOutQuart: function(t) {
-		return -((t = t - 1) * t * t * t - 1);
+var scale_category = core_scale.extend({
+	/**
+	* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
+	* else fall back to data.labels
+	* @private
+	*/
+	getLabels: function() {
+		var data = this.chart.data;
+		return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
 	},
 
-	easeInOutQuart: function(t) {
-		if ((t /= 0.5) < 1) {
-			return 0.5 * t * t * t * t;
+	determineDataLimits: function() {
+		var me = this;
+		var labels = me.getLabels();
+		me.minIndex = 0;
+		me.maxIndex = labels.length - 1;
+		var findIndex;
+
+		if (me.options.ticks.min !== undefined) {
+			// user specified min value
+			findIndex = labels.indexOf(me.options.ticks.min);
+			me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
 		}
-		return -0.5 * ((t -= 2) * t * t * t - 2);
-	},
 
-	easeInQuint: function(t) {
-		return t * t * t * t * t;
+		if (me.options.ticks.max !== undefined) {
+			// user specified max value
+			findIndex = labels.indexOf(me.options.ticks.max);
+			me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
+		}
+
+		me.min = labels[me.minIndex];
+		me.max = labels[me.maxIndex];
 	},
 
-	easeOutQuint: function(t) {
-		return (t = t - 1) * t * t * t * t + 1;
+	buildTicks: function() {
+		var me = this;
+		var labels = me.getLabels();
+		// If we are viewing some subset of labels, slice the original array
+		me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
 	},
 
-	easeInOutQuint: function(t) {
-		if ((t /= 0.5) < 1) {
-			return 0.5 * t * t * t * t * t;
+	getLabelForIndex: function(index, datasetIndex) {
+		var me = this;
+		var chart = me.chart;
+
+		if (chart.getDatasetMeta(datasetIndex).controller._getValueScaleId() === me.id) {
+			return me.getRightValue(chart.data.datasets[datasetIndex].data[index]);
 		}
-		return 0.5 * ((t -= 2) * t * t * t * t + 2);
-	},
 
-	easeInSine: function(t) {
-		return -Math.cos(t * (Math.PI / 2)) + 1;
+		return me.ticks[index - me.minIndex];
 	},
 
-	easeOutSine: function(t) {
-		return Math.sin(t * (Math.PI / 2));
+	// Used to get data value locations.  Value can either be an index or a numerical value
+	getPixelForValue: function(value, index) {
+		var me = this;
+		var offset = me.options.offset;
+		// 1 is added because we need the length but we have the indexes
+		var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);
+
+		// If value is a data object, then index is the index in the data array,
+		// not the index of the scale. We need to change that.
+		var valueCategory;
+		if (value !== undefined && value !== null) {
+			valueCategory = me.isHorizontal() ? value.x : value.y;
+		}
+		if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
+			var labels = me.getLabels();
+			value = valueCategory || value;
+			var idx = labels.indexOf(value);
+			index = idx !== -1 ? idx : index;
+		}
+
+		if (me.isHorizontal()) {
+			var valueWidth = me.width / offsetAmt;
+			var widthOffset = (valueWidth * (index - me.minIndex));
+
+			if (offset) {
+				widthOffset += (valueWidth / 2);
+			}
+
+			return me.left + widthOffset;
+		}
+		var valueHeight = me.height / offsetAmt;
+		var heightOffset = (valueHeight * (index - me.minIndex));
+
+		if (offset) {
+			heightOffset += (valueHeight / 2);
+		}
+
+		return me.top + heightOffset;
 	},
 
-	easeInOutSine: function(t) {
-		return -0.5 * (Math.cos(Math.PI * t) - 1);
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
 	},
 
-	easeInExpo: function(t) {
-		return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var offset = me.options.offset;
+		var value;
+		var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
+		var horz = me.isHorizontal();
+		var valueDimension = (horz ? me.width : me.height) / offsetAmt;
+
+		pixel -= horz ? me.left : me.top;
+
+		if (offset) {
+			pixel -= (valueDimension / 2);
+		}
+
+		if (pixel <= 0) {
+			value = 0;
+		} else {
+			value = Math.round(pixel / valueDimension);
+		}
+
+		return value + me.minIndex;
 	},
 
-	easeOutExpo: function(t) {
-		return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
+	getBasePixel: function() {
+		return this.bottom;
+	}
+});
+
+// INTERNAL: static default options, registered in src/index.js
+var _defaults = defaultConfig;
+scale_category._defaults = _defaults;
+
+var noop = helpers$1.noop;
+var isNullOrUndef = helpers$1.isNullOrUndef;
+
+/**
+ * Generate a set of linear ticks
+ * @param generationOptions the options used to generate the ticks
+ * @param dataRange the range of the data
+ * @returns {number[]} array of tick values
+ */
+function generateTicks(generationOptions, dataRange) {
+	var ticks = [];
+	// To get a "nice" value for the tick spacing, we will use the appropriately named
+	// "nice number" algorithm. See https://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
+	// for details.
+
+	var MIN_SPACING = 1e-14;
+	var stepSize = generationOptions.stepSize;
+	var unit = stepSize || 1;
+	var maxNumSpaces = generationOptions.maxTicks - 1;
+	var min = generationOptions.min;
+	var max = generationOptions.max;
+	var precision = generationOptions.precision;
+	var rmin = dataRange.min;
+	var rmax = dataRange.max;
+	var spacing = helpers$1.niceNum((rmax - rmin) / maxNumSpaces / unit) * unit;
+	var factor, niceMin, niceMax, numSpaces;
+
+	// Beyond MIN_SPACING floating point numbers being to lose precision
+	// such that we can't do the math necessary to generate ticks
+	if (spacing < MIN_SPACING && isNullOrUndef(min) && isNullOrUndef(max)) {
+		return [rmin, rmax];
+	}
+
+	numSpaces = Math.ceil(rmax / spacing) - Math.floor(rmin / spacing);
+	if (numSpaces > maxNumSpaces) {
+		// If the calculated num of spaces exceeds maxNumSpaces, recalculate it
+		spacing = helpers$1.niceNum(numSpaces * spacing / maxNumSpaces / unit) * unit;
+	}
+
+	if (stepSize || isNullOrUndef(precision)) {
+		// If a precision is not specified, calculate factor based on spacing
+		factor = Math.pow(10, helpers$1._decimalPlaces(spacing));
+	} else {
+		// If the user specified a precision, round to that number of decimal places
+		factor = Math.pow(10, precision);
+		spacing = Math.ceil(spacing * factor) / factor;
+	}
+
+	niceMin = Math.floor(rmin / spacing) * spacing;
+	niceMax = Math.ceil(rmax / spacing) * spacing;
+
+	// If min, max and stepSize is set and they make an evenly spaced scale use it.
+	if (stepSize) {
+		// If very close to our whole number, use it.
+		if (!isNullOrUndef(min) && helpers$1.almostWhole(min / spacing, spacing / 1000)) {
+			niceMin = min;
+		}
+		if (!isNullOrUndef(max) && helpers$1.almostWhole(max / spacing, spacing / 1000)) {
+			niceMax = max;
+		}
+	}
+
+	numSpaces = (niceMax - niceMin) / spacing;
+	// If very close to our rounded value, use it.
+	if (helpers$1.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
+		numSpaces = Math.round(numSpaces);
+	} else {
+		numSpaces = Math.ceil(numSpaces);
+	}
+
+	niceMin = Math.round(niceMin * factor) / factor;
+	niceMax = Math.round(niceMax * factor) / factor;
+	ticks.push(isNullOrUndef(min) ? niceMin : min);
+	for (var j = 1; j < numSpaces; ++j) {
+		ticks.push(Math.round((niceMin + j * spacing) * factor) / factor);
+	}
+	ticks.push(isNullOrUndef(max) ? niceMax : max);
+
+	return ticks;
+}
+
+var scale_linearbase = core_scale.extend({
+	getRightValue: function(value) {
+		if (typeof value === 'string') {
+			return +value;
+		}
+		return core_scale.prototype.getRightValue.call(this, value);
 	},
 
-	easeInOutExpo: function(t) {
-		if (t === 0) {
-			return 0;
+	handleTickRangeOptions: function() {
+		var me = this;
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+
+		// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
+		// do nothing since that would make the chart weird. If the user really wants a weird chart
+		// axis, they can manually override it
+		if (tickOpts.beginAtZero) {
+			var minSign = helpers$1.sign(me.min);
+			var maxSign = helpers$1.sign(me.max);
+
+			if (minSign < 0 && maxSign < 0) {
+				// move the top up to 0
+				me.max = 0;
+			} else if (minSign > 0 && maxSign > 0) {
+				// move the bottom down to 0
+				me.min = 0;
+			}
 		}
-		if (t === 1) {
-			return 1;
+
+		var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
+		var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;
+
+		if (tickOpts.min !== undefined) {
+			me.min = tickOpts.min;
+		} else if (tickOpts.suggestedMin !== undefined) {
+			if (me.min === null) {
+				me.min = tickOpts.suggestedMin;
+			} else {
+				me.min = Math.min(me.min, tickOpts.suggestedMin);
+			}
 		}
-		if ((t /= 0.5) < 1) {
-			return 0.5 * Math.pow(2, 10 * (t - 1));
+
+		if (tickOpts.max !== undefined) {
+			me.max = tickOpts.max;
+		} else if (tickOpts.suggestedMax !== undefined) {
+			if (me.max === null) {
+				me.max = tickOpts.suggestedMax;
+			} else {
+				me.max = Math.max(me.max, tickOpts.suggestedMax);
+			}
+		}
+
+		if (setMin !== setMax) {
+			// We set the min or the max but not both.
+			// So ensure that our range is good
+			// Inverted or 0 length range can happen when
+			// ticks.min is set, and no datasets are visible
+			if (me.min >= me.max) {
+				if (setMin) {
+					me.max = me.min + 1;
+				} else {
+					me.min = me.max - 1;
+				}
+			}
+		}
+
+		if (me.min === me.max) {
+			me.max++;
+
+			if (!tickOpts.beginAtZero) {
+				me.min--;
+			}
 		}
-		return 0.5 * (-Math.pow(2, -10 * --t) + 2);
 	},
 
-	easeInCirc: function(t) {
-		if (t >= 1) {
-			return t;
+	getTickLimit: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var stepSize = tickOpts.stepSize;
+		var maxTicksLimit = tickOpts.maxTicksLimit;
+		var maxTicks;
+
+		if (stepSize) {
+			maxTicks = Math.ceil(me.max / stepSize) - Math.floor(me.min / stepSize) + 1;
+		} else {
+			maxTicks = me._computeTickLimit();
+			maxTicksLimit = maxTicksLimit || 11;
 		}
-		return -(Math.sqrt(1 - t * t) - 1);
+
+		if (maxTicksLimit) {
+			maxTicks = Math.min(maxTicksLimit, maxTicks);
+		}
+
+		return maxTicks;
 	},
 
-	easeOutCirc: function(t) {
-		return Math.sqrt(1 - (t = t - 1) * t);
+	_computeTickLimit: function() {
+		return Number.POSITIVE_INFINITY;
 	},
 
-	easeInOutCirc: function(t) {
-		if ((t /= 0.5) < 1) {
-			return -0.5 * (Math.sqrt(1 - t * t) - 1);
+	handleDirectionalChanges: noop,
+
+	buildTicks: function() {
+		var me = this;
+		var opts = me.options;
+		var tickOpts = opts.ticks;
+
+		// Figure out what the max number of ticks we can support it is based on the size of
+		// the axis area. For now, we say that the minimum tick spacing in pixels must be 40
+		// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
+		// the graph. Make sure we always have at least 2 ticks
+		var maxTicks = me.getTickLimit();
+		maxTicks = Math.max(2, maxTicks);
+
+		var numericGeneratorOptions = {
+			maxTicks: maxTicks,
+			min: tickOpts.min,
+			max: tickOpts.max,
+			precision: tickOpts.precision,
+			stepSize: helpers$1.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
+		};
+		var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);
+
+		me.handleDirectionalChanges();
+
+		// At this point, we need to update our max and min given the tick values since we have expanded the
+		// range of the scale
+		me.max = helpers$1.max(ticks);
+		me.min = helpers$1.min(ticks);
+
+		if (tickOpts.reverse) {
+			ticks.reverse();
+
+			me.start = me.max;
+			me.end = me.min;
+		} else {
+			me.start = me.min;
+			me.end = me.max;
 		}
-		return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
 	},
 
-	easeInElastic: function(t) {
-		var s = 1.70158;
-		var p = 0;
-		var a = 1;
-		if (t === 0) {
-			return 0;
+	convertTicksToLabels: function() {
+		var me = this;
+		me.ticksAsNumbers = me.ticks.slice();
+		me.zeroLineIndex = me.ticks.indexOf(0);
+
+		core_scale.prototype.convertTicksToLabels.call(me);
+	}
+});
+
+var defaultConfig$1 = {
+	position: 'left',
+	ticks: {
+		callback: core_ticks.formatters.linear
+	}
+};
+
+var scale_linear = scale_linearbase.extend({
+	determineDataLimits: function() {
+		var me = this;
+		var opts = me.options;
+		var chart = me.chart;
+		var data = chart.data;
+		var datasets = data.datasets;
+		var isHorizontal = me.isHorizontal();
+		var DEFAULT_MIN = 0;
+		var DEFAULT_MAX = 1;
+
+		function IDMatches(meta) {
+			return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
 		}
-		if (t === 1) {
-			return 1;
+
+		// First Calculate the range
+		me.min = null;
+		me.max = null;
+
+		var hasStacks = opts.stacked;
+		if (hasStacks === undefined) {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				if (hasStacks) {
+					return;
+				}
+
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
+					meta.stack !== undefined) {
+					hasStacks = true;
+				}
+			});
 		}
-		if (!p) {
-			p = 0.3;
+
+		if (opts.stacked || hasStacks) {
+			var valuesPerStack = {};
+
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				var key = [
+					meta.type,
+					// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
+					((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
+					meta.stack
+				].join('.');
+
+				if (valuesPerStack[key] === undefined) {
+					valuesPerStack[key] = {
+						positiveValues: [],
+						negativeValues: []
+					};
+				}
+
+				// Store these per type
+				var positiveValues = valuesPerStack[key].positiveValues;
+				var negativeValues = valuesPerStack[key].negativeValues;
+
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						if (isNaN(value) || meta.data[index].hidden) {
+							return;
+						}
+
+						positiveValues[index] = positiveValues[index] || 0;
+						negativeValues[index] = negativeValues[index] || 0;
+
+						if (opts.relativePoints) {
+							positiveValues[index] = 100;
+						} else if (value < 0) {
+							negativeValues[index] += value;
+						} else {
+							positiveValues[index] += value;
+						}
+					});
+				}
+			});
+
+			helpers$1.each(valuesPerStack, function(valuesForType) {
+				var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
+				var minVal = helpers$1.min(values);
+				var maxVal = helpers$1.max(values);
+				me.min = me.min === null ? minVal : Math.min(me.min, minVal);
+				me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
+			});
+
+		} else {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						if (isNaN(value) || meta.data[index].hidden) {
+							return;
+						}
+
+						if (me.min === null) {
+							me.min = value;
+						} else if (value < me.min) {
+							me.min = value;
+						}
+
+						if (me.max === null) {
+							me.max = value;
+						} else if (value > me.max) {
+							me.max = value;
+						}
+					});
+				}
+			});
 		}
-		if (a < 1) {
-			a = 1;
-			s = p / 4;
+
+		me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
+		me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;
+
+		// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
+		this.handleTickRangeOptions();
+	},
+
+	// Returns the maximum number of ticks based on the scale dimension
+	_computeTickLimit: function() {
+		var me = this;
+		var tickFont;
+
+		if (me.isHorizontal()) {
+			return Math.ceil(me.width / 40);
+		}
+		tickFont = helpers$1.options._parseFont(me.options.ticks);
+		return Math.ceil(me.height / tickFont.lineHeight);
+	},
+
+	// Called after the ticks are built. We need
+	handleDirectionalChanges: function() {
+		if (!this.isHorizontal()) {
+			// We are in a vertical orientation. The top value is the highest. So reverse the array
+			this.ticks.reverse();
+		}
+	},
+
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
+	},
+
+	// Utils
+	getPixelForValue: function(value) {
+		// This must be called after fit has been run so that
+		// this.left, this.top, this.right, and this.bottom have been defined
+		var me = this;
+		var start = me.start;
+
+		var rightValue = +me.getRightValue(value);
+		var pixel;
+		var range = me.end - start;
+
+		if (me.isHorizontal()) {
+			pixel = me.left + (me.width / range * (rightValue - start));
 		} else {
-			s = p / (2 * Math.PI) * Math.asin(1 / a);
+			pixel = me.bottom - (me.height / range * (rightValue - start));
 		}
-		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+		return pixel;
 	},
 
-	easeOutElastic: function(t) {
-		var s = 1.70158;
-		var p = 0;
-		var a = 1;
-		if (t === 0) {
-			return 0;
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var isHorizontal = me.isHorizontal();
+		var innerDimension = isHorizontal ? me.width : me.height;
+		var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
+		return me.start + ((me.end - me.start) * offset);
+	},
+
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.ticksAsNumbers[index]);
+	}
+});
+
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$1 = defaultConfig$1;
+scale_linear._defaults = _defaults$1;
+
+var valueOrDefault$a = helpers$1.valueOrDefault;
+
+/**
+ * Generate a set of logarithmic ticks
+ * @param generationOptions the options used to generate the ticks
+ * @param dataRange the range of the data
+ * @returns {number[]} array of tick values
+ */
+function generateTicks$1(generationOptions, dataRange) {
+	var ticks = [];
+
+	var tickVal = valueOrDefault$a(generationOptions.min, Math.pow(10, Math.floor(helpers$1.log10(dataRange.min))));
+
+	var endExp = Math.floor(helpers$1.log10(dataRange.max));
+	var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
+	var exp, significand;
+
+	if (tickVal === 0) {
+		exp = Math.floor(helpers$1.log10(dataRange.minNotZero));
+		significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));
+
+		ticks.push(tickVal);
+		tickVal = significand * Math.pow(10, exp);
+	} else {
+		exp = Math.floor(helpers$1.log10(tickVal));
+		significand = Math.floor(tickVal / Math.pow(10, exp));
+	}
+	var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
+
+	do {
+		ticks.push(tickVal);
+
+		++significand;
+		if (significand === 10) {
+			significand = 1;
+			++exp;
+			precision = exp >= 0 ? 1 : precision;
 		}
-		if (t === 1) {
-			return 1;
+
+		tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
+	} while (exp < endExp || (exp === endExp && significand < endSignificand));
+
+	var lastTick = valueOrDefault$a(generationOptions.max, tickVal);
+	ticks.push(lastTick);
+
+	return ticks;
+}
+
+var defaultConfig$2 = {
+	position: 'left',
+
+	// label settings
+	ticks: {
+		callback: core_ticks.formatters.logarithmic
+	}
+};
+
+// TODO(v3): change this to positiveOrDefault
+function nonNegativeOrDefault(value, defaultValue) {
+	return helpers$1.isFinite(value) && value >= 0 ? value : defaultValue;
+}
+
+var scale_logarithmic = core_scale.extend({
+	determineDataLimits: function() {
+		var me = this;
+		var opts = me.options;
+		var chart = me.chart;
+		var data = chart.data;
+		var datasets = data.datasets;
+		var isHorizontal = me.isHorizontal();
+		function IDMatches(meta) {
+			return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
 		}
-		if (!p) {
-			p = 0.3;
+
+		// Calculate Range
+		me.min = null;
+		me.max = null;
+		me.minNotZero = null;
+
+		var hasStacks = opts.stacked;
+		if (hasStacks === undefined) {
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				if (hasStacks) {
+					return;
+				}
+
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
+					meta.stack !== undefined) {
+					hasStacks = true;
+				}
+			});
 		}
-		if (a < 1) {
-			a = 1;
-			s = p / 4;
+
+		if (opts.stacked || hasStacks) {
+			var valuesPerStack = {};
+
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				var key = [
+					meta.type,
+					// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
+					((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
+					meta.stack
+				].join('.');
+
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					if (valuesPerStack[key] === undefined) {
+						valuesPerStack[key] = [];
+					}
+
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var values = valuesPerStack[key];
+						var value = +me.getRightValue(rawValue);
+						// invalid, hidden and negative values are ignored
+						if (isNaN(value) || meta.data[index].hidden || value < 0) {
+							return;
+						}
+						values[index] = values[index] || 0;
+						values[index] += value;
+					});
+				}
+			});
+
+			helpers$1.each(valuesPerStack, function(valuesForType) {
+				if (valuesForType.length > 0) {
+					var minVal = helpers$1.min(valuesForType);
+					var maxVal = helpers$1.max(valuesForType);
+					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
+					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
+				}
+			});
+
 		} else {
-			s = p / (2 * Math.PI) * Math.asin(1 / a);
+			helpers$1.each(datasets, function(dataset, datasetIndex) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+				if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
+					helpers$1.each(dataset.data, function(rawValue, index) {
+						var value = +me.getRightValue(rawValue);
+						// invalid, hidden and negative values are ignored
+						if (isNaN(value) || meta.data[index].hidden || value < 0) {
+							return;
+						}
+
+						if (me.min === null) {
+							me.min = value;
+						} else if (value < me.min) {
+							me.min = value;
+						}
+
+						if (me.max === null) {
+							me.max = value;
+						} else if (value > me.max) {
+							me.max = value;
+						}
+
+						if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
+							me.minNotZero = value;
+						}
+					});
+				}
+			});
 		}
-		return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
+
+		// Common base implementation to handle ticks.min, ticks.max
+		this.handleTickRangeOptions();
 	},
 
-	easeInOutElastic: function(t) {
-		var s = 1.70158;
-		var p = 0;
-		var a = 1;
-		if (t === 0) {
-			return 0;
+	handleTickRangeOptions: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var DEFAULT_MIN = 1;
+		var DEFAULT_MAX = 10;
+
+		me.min = nonNegativeOrDefault(tickOpts.min, me.min);
+		me.max = nonNegativeOrDefault(tickOpts.max, me.max);
+
+		if (me.min === me.max) {
+			if (me.min !== 0 && me.min !== null) {
+				me.min = Math.pow(10, Math.floor(helpers$1.log10(me.min)) - 1);
+				me.max = Math.pow(10, Math.floor(helpers$1.log10(me.max)) + 1);
+			} else {
+				me.min = DEFAULT_MIN;
+				me.max = DEFAULT_MAX;
+			}
 		}
-		if ((t /= 0.5) === 2) {
-			return 1;
+		if (me.min === null) {
+			me.min = Math.pow(10, Math.floor(helpers$1.log10(me.max)) - 1);
 		}
-		if (!p) {
-			p = 0.45;
+		if (me.max === null) {
+			me.max = me.min !== 0
+				? Math.pow(10, Math.floor(helpers$1.log10(me.min)) + 1)
+				: DEFAULT_MAX;
 		}
-		if (a < 1) {
-			a = 1;
-			s = p / 4;
+		if (me.minNotZero === null) {
+			if (me.min > 0) {
+				me.minNotZero = me.min;
+			} else if (me.max < 1) {
+				me.minNotZero = Math.pow(10, Math.floor(helpers$1.log10(me.max)));
+			} else {
+				me.minNotZero = DEFAULT_MIN;
+			}
+		}
+	},
+
+	buildTicks: function() {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = !me.isHorizontal();
+
+		var generationOptions = {
+			min: nonNegativeOrDefault(tickOpts.min),
+			max: nonNegativeOrDefault(tickOpts.max)
+		};
+		var ticks = me.ticks = generateTicks$1(generationOptions, me);
+
+		// At this point, we need to update our max and min given the tick values since we have expanded the
+		// range of the scale
+		me.max = helpers$1.max(ticks);
+		me.min = helpers$1.min(ticks);
+
+		if (tickOpts.reverse) {
+			reverse = !reverse;
+			me.start = me.max;
+			me.end = me.min;
 		} else {
-			s = p / (2 * Math.PI) * Math.asin(1 / a);
+			me.start = me.min;
+			me.end = me.max;
 		}
-		if (t < 1) {
-			return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
+		if (reverse) {
+			ticks.reverse();
 		}
-		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
 	},
-	easeInBack: function(t) {
-		var s = 1.70158;
-		return t * t * ((s + 1) * t - s);
+
+	convertTicksToLabels: function() {
+		this.tickValues = this.ticks.slice();
+
+		core_scale.prototype.convertTicksToLabels.call(this);
 	},
 
-	easeOutBack: function(t) {
-		var s = 1.70158;
-		return (t = t - 1) * t * ((s + 1) * t + s) + 1;
+	// Get the correct tooltip label
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
 	},
 
-	easeInOutBack: function(t) {
-		var s = 1.70158;
-		if ((t /= 0.5) < 1) {
-			return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
-		}
-		return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
+	getPixelForTick: function(index) {
+		return this.getPixelForValue(this.tickValues[index]);
 	},
 
-	easeInBounce: function(t) {
-		return 1 - effects.easeOutBounce(1 - t);
+	/**
+	 * Returns the value of the first tick.
+	 * @param {number} value - The minimum not zero value.
+	 * @return {number} The first tick value.
+	 * @private
+	 */
+	_getFirstTickValue: function(value) {
+		var exp = Math.floor(helpers$1.log10(value));
+		var significand = Math.floor(value / Math.pow(10, exp));
+
+		return significand * Math.pow(10, exp);
 	},
 
-	easeOutBounce: function(t) {
-		if (t < (1 / 2.75)) {
-			return 7.5625 * t * t;
+	getPixelForValue: function(value) {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = tickOpts.reverse;
+		var log10 = helpers$1.log10;
+		var firstTickValue = me._getFirstTickValue(me.minNotZero);
+		var offset = 0;
+		var innerDimension, pixel, start, end, sign;
+
+		value = +me.getRightValue(value);
+		if (reverse) {
+			start = me.end;
+			end = me.start;
+			sign = -1;
+		} else {
+			start = me.start;
+			end = me.end;
+			sign = 1;
 		}
-		if (t < (2 / 2.75)) {
-			return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
+		if (me.isHorizontal()) {
+			innerDimension = me.width;
+			pixel = reverse ? me.right : me.left;
+		} else {
+			innerDimension = me.height;
+			sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
+			pixel = reverse ? me.top : me.bottom;
 		}
-		if (t < (2.5 / 2.75)) {
-			return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
+		if (value !== start) {
+			if (start === 0) { // include zero tick
+				offset = valueOrDefault$a(tickOpts.fontSize, core_defaults.global.defaultFontSize);
+				innerDimension -= offset;
+				start = firstTickValue;
+			}
+			if (value !== 0) {
+				offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
+			}
+			pixel += sign * offset;
 		}
-		return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
+		return pixel;
 	},
 
-	easeInOutBounce: function(t) {
-		if (t < 0.5) {
-			return effects.easeInBounce(t * 2) * 0.5;
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var tickOpts = me.options.ticks;
+		var reverse = tickOpts.reverse;
+		var log10 = helpers$1.log10;
+		var firstTickValue = me._getFirstTickValue(me.minNotZero);
+		var innerDimension, start, end, value;
+
+		if (reverse) {
+			start = me.end;
+			end = me.start;
+		} else {
+			start = me.start;
+			end = me.end;
 		}
-		return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
+		if (me.isHorizontal()) {
+			innerDimension = me.width;
+			value = reverse ? me.right - pixel : pixel - me.left;
+		} else {
+			innerDimension = me.height;
+			value = reverse ? pixel - me.top : me.bottom - pixel;
+		}
+		if (value !== start) {
+			if (start === 0) { // include zero tick
+				var offset = valueOrDefault$a(tickOpts.fontSize, core_defaults.global.defaultFontSize);
+				value -= offset;
+				innerDimension -= offset;
+				start = firstTickValue;
+			}
+			value *= log10(end) - log10(start);
+			value /= innerDimension;
+			value = Math.pow(10, log10(start) + value);
+		}
+		return value;
 	}
-};
+});
 
-module.exports = {
-	effects: effects
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$2 = defaultConfig$2;
+scale_logarithmic._defaults = _defaults$2;
+
+var valueOrDefault$b = helpers$1.valueOrDefault;
+var valueAtIndexOrDefault$1 = helpers$1.valueAtIndexOrDefault;
+var resolve$7 = helpers$1.options.resolve;
+
+var defaultConfig$3 = {
+	display: true,
+
+	// Boolean - Whether to animate scaling the chart from the centre
+	animate: true,
+	position: 'chartArea',
+
+	angleLines: {
+		display: true,
+		color: 'rgba(0, 0, 0, 0.1)',
+		lineWidth: 1,
+		borderDash: [],
+		borderDashOffset: 0.0
+	},
+
+	gridLines: {
+		circular: false
+	},
+
+	// label settings
+	ticks: {
+		// Boolean - Show a backdrop to the scale label
+		showLabelBackdrop: true,
+
+		// String - The colour of the label backdrop
+		backdropColor: 'rgba(255,255,255,0.75)',
+
+		// Number - The backdrop padding above & below the label in pixels
+		backdropPaddingY: 2,
+
+		// Number - The backdrop padding to the side of the label in pixels
+		backdropPaddingX: 2,
+
+		callback: core_ticks.formatters.linear
+	},
+
+	pointLabels: {
+		// Boolean - if true, show point labels
+		display: true,
+
+		// Number - Point label font size in pixels
+		fontSize: 10,
+
+		// Function - Used to convert point labels
+		callback: function(label) {
+			return label;
+		}
+	}
 };
 
-// DEPRECATIONS
+function getValueCount(scale) {
+	var opts = scale.options;
+	return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
+}
 
-/**
- * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
- * @function Chart.helpers.easingEffects
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.easingEffects = effects;
+function getTickBackdropHeight(opts) {
+	var tickOpts = opts.ticks;
 
-},{"43":43}],45:[function(require,module,exports){
-'use strict';
+	if (tickOpts.display && opts.display) {
+		return valueOrDefault$b(tickOpts.fontSize, core_defaults.global.defaultFontSize) + tickOpts.backdropPaddingY * 2;
+	}
+	return 0;
+}
 
-var helpers = require(43);
+function measureLabelSize(ctx, lineHeight, label) {
+	if (helpers$1.isArray(label)) {
+		return {
+			w: helpers$1.longestText(ctx, ctx.font, label),
+			h: label.length * lineHeight
+		};
+	}
+
+	return {
+		w: ctx.measureText(label).width,
+		h: lineHeight
+	};
+}
+
+function determineLimits(angle, pos, size, min, max) {
+	if (angle === min || angle === max) {
+		return {
+			start: pos - (size / 2),
+			end: pos + (size / 2)
+		};
+	} else if (angle < min || angle > max) {
+		return {
+			start: pos - size,
+			end: pos
+		};
+	}
+
+	return {
+		start: pos,
+		end: pos + size
+	};
+}
 
 /**
- * @alias Chart.helpers.options
- * @namespace
+ * Helper function to fit a radial linear scale with point labels
  */
-module.exports = {
-	/**
-	 * Converts the given line height `value` in pixels for a specific font `size`.
-	 * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
-	 * @param {Number} size - The font size (in pixels) used to resolve relative `value`.
-	 * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid).
-	 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
-	 * @since 2.7.0
-	 */
-	toLineHeight: function(value, size) {
-		var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
-		if (!matches || matches[1] === 'normal') {
-			return size * 1.2;
+function fitWithPointLabels(scale) {
+
+	// Right, this is really confusing and there is a lot of maths going on here
+	// The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
+	//
+	// Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
+	//
+	// Solution:
+	//
+	// We assume the radius of the polygon is half the size of the canvas at first
+	// at each index we check if the text overlaps.
+	//
+	// Where it does, we store that angle and that index.
+	//
+	// After finding the largest index and angle we calculate how much we need to remove
+	// from the shape radius to move the point inwards by that x.
+	//
+	// We average the left and right distances to get the maximum shape radius that can fit in the box
+	// along with labels.
+	//
+	// Once we have that, we can find the centre point for the chart, by taking the x text protrusion
+	// on each side, removing that from the size, halving it and adding the left x protrusion width.
+	//
+	// This will mean we have a shape fitted to the canvas, as large as it can be with the labels
+	// and position it in the most space efficient manner
+	//
+	// https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
+
+	var plFont = helpers$1.options._parseFont(scale.options.pointLabels);
+
+	// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
+	// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
+	var furthestLimits = {
+		l: 0,
+		r: scale.width,
+		t: 0,
+		b: scale.height - scale.paddingTop
+	};
+	var furthestAngles = {};
+	var i, textSize, pointPosition;
+
+	scale.ctx.font = plFont.string;
+	scale._pointLabelSizes = [];
+
+	var valueCount = getValueCount(scale);
+	for (i = 0; i < valueCount; i++) {
+		pointPosition = scale.getPointPosition(i, scale.drawingArea + 5);
+		textSize = measureLabelSize(scale.ctx, plFont.lineHeight, scale.pointLabels[i] || '');
+		scale._pointLabelSizes[i] = textSize;
+
+		// Add quarter circle to make degree 0 mean top of circle
+		var angleRadians = scale.getIndexAngle(i);
+		var angle = helpers$1.toDegrees(angleRadians) % 360;
+		var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
+		var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
+
+		if (hLimits.start < furthestLimits.l) {
+			furthestLimits.l = hLimits.start;
+			furthestAngles.l = angleRadians;
 		}
 
-		value = +matches[2];
+		if (hLimits.end > furthestLimits.r) {
+			furthestLimits.r = hLimits.end;
+			furthestAngles.r = angleRadians;
+		}
 
-		switch (matches[3]) {
-		case 'px':
-			return value;
-		case '%':
-			value /= 100;
-			break;
-		default:
-			break;
+		if (vLimits.start < furthestLimits.t) {
+			furthestLimits.t = vLimits.start;
+			furthestAngles.t = angleRadians;
 		}
 
-		return size * value;
+		if (vLimits.end > furthestLimits.b) {
+			furthestLimits.b = vLimits.end;
+			furthestAngles.b = angleRadians;
+		}
+	}
+
+	scale.setReductions(scale.drawingArea, furthestLimits, furthestAngles);
+}
+
+function getTextAlignForAngle(angle) {
+	if (angle === 0 || angle === 180) {
+		return 'center';
+	} else if (angle < 180) {
+		return 'left';
+	}
+
+	return 'right';
+}
+
+function fillText(ctx, text, position, lineHeight) {
+	var y = position.y + lineHeight / 2;
+	var i, ilen;
+
+	if (helpers$1.isArray(text)) {
+		for (i = 0, ilen = text.length; i < ilen; ++i) {
+			ctx.fillText(text[i], position.x, y);
+			y += lineHeight;
+		}
+	} else {
+		ctx.fillText(text, position.x, y);
+	}
+}
+
+function adjustPointPositionForLabelHeight(angle, textSize, position) {
+	if (angle === 90 || angle === 270) {
+		position.y -= (textSize.h / 2);
+	} else if (angle > 270 || angle < 90) {
+		position.y -= textSize.h;
+	}
+}
+
+function drawPointLabels(scale) {
+	var ctx = scale.ctx;
+	var opts = scale.options;
+	var angleLineOpts = opts.angleLines;
+	var gridLineOpts = opts.gridLines;
+	var pointLabelOpts = opts.pointLabels;
+	var lineWidth = valueOrDefault$b(angleLineOpts.lineWidth, gridLineOpts.lineWidth);
+	var lineColor = valueOrDefault$b(angleLineOpts.color, gridLineOpts.color);
+	var tickBackdropHeight = getTickBackdropHeight(opts);
+
+	ctx.save();
+	ctx.lineWidth = lineWidth;
+	ctx.strokeStyle = lineColor;
+	if (ctx.setLineDash) {
+		ctx.setLineDash(resolve$7([angleLineOpts.borderDash, gridLineOpts.borderDash, []]));
+		ctx.lineDashOffset = resolve$7([angleLineOpts.borderDashOffset, gridLineOpts.borderDashOffset, 0.0]);
+	}
+
+	var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
+
+	// Point Label Font
+	var plFont = helpers$1.options._parseFont(pointLabelOpts);
+
+	ctx.font = plFont.string;
+	ctx.textBaseline = 'middle';
+
+	for (var i = getValueCount(scale) - 1; i >= 0; i--) {
+		if (angleLineOpts.display && lineWidth && lineColor) {
+			var outerPosition = scale.getPointPosition(i, outerDistance);
+			ctx.beginPath();
+			ctx.moveTo(scale.xCenter, scale.yCenter);
+			ctx.lineTo(outerPosition.x, outerPosition.y);
+			ctx.stroke();
+		}
+
+		if (pointLabelOpts.display) {
+			// Extra pixels out for some label spacing
+			var extra = (i === 0 ? tickBackdropHeight / 2 : 0);
+			var pointLabelPosition = scale.getPointPosition(i, outerDistance + extra + 5);
+
+			// Keep this in loop since we may support array properties here
+			var pointLabelFontColor = valueAtIndexOrDefault$1(pointLabelOpts.fontColor, i, core_defaults.global.defaultFontColor);
+			ctx.fillStyle = pointLabelFontColor;
+
+			var angleRadians = scale.getIndexAngle(i);
+			var angle = helpers$1.toDegrees(angleRadians);
+			ctx.textAlign = getTextAlignForAngle(angle);
+			adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
+			fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.lineHeight);
+		}
+	}
+	ctx.restore();
+}
+
+function drawRadiusLine(scale, gridLineOpts, radius, index) {
+	var ctx = scale.ctx;
+	var circular = gridLineOpts.circular;
+	var valueCount = getValueCount(scale);
+	var lineColor = valueAtIndexOrDefault$1(gridLineOpts.color, index - 1);
+	var lineWidth = valueAtIndexOrDefault$1(gridLineOpts.lineWidth, index - 1);
+	var pointPosition;
+
+	if ((!circular && !valueCount) || !lineColor || !lineWidth) {
+		return;
+	}
+
+	ctx.save();
+	ctx.strokeStyle = lineColor;
+	ctx.lineWidth = lineWidth;
+	if (ctx.setLineDash) {
+		ctx.setLineDash(gridLineOpts.borderDash || []);
+		ctx.lineDashOffset = gridLineOpts.borderDashOffset || 0.0;
+	}
+
+	ctx.beginPath();
+	if (circular) {
+		// Draw circular arcs between the points
+		ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
+	} else {
+		// Draw straight lines connecting each index
+		pointPosition = scale.getPointPosition(0, radius);
+		ctx.moveTo(pointPosition.x, pointPosition.y);
+
+		for (var i = 1; i < valueCount; i++) {
+			pointPosition = scale.getPointPosition(i, radius);
+			ctx.lineTo(pointPosition.x, pointPosition.y);
+		}
+	}
+	ctx.closePath();
+	ctx.stroke();
+	ctx.restore();
+}
+
+function numberOrZero(param) {
+	return helpers$1.isNumber(param) ? param : 0;
+}
+
+var scale_radialLinear = scale_linearbase.extend({
+	setDimensions: function() {
+		var me = this;
+
+		// Set the unconstrained dimension before label rotation
+		me.width = me.maxWidth;
+		me.height = me.maxHeight;
+		me.paddingTop = getTickBackdropHeight(me.options) / 2;
+		me.xCenter = Math.floor(me.width / 2);
+		me.yCenter = Math.floor((me.height - me.paddingTop) / 2);
+		me.drawingArea = Math.min(me.height - me.paddingTop, me.width) / 2;
+	},
+
+	determineDataLimits: function() {
+		var me = this;
+		var chart = me.chart;
+		var min = Number.POSITIVE_INFINITY;
+		var max = Number.NEGATIVE_INFINITY;
+
+		helpers$1.each(chart.data.datasets, function(dataset, datasetIndex) {
+			if (chart.isDatasetVisible(datasetIndex)) {
+				var meta = chart.getDatasetMeta(datasetIndex);
+
+				helpers$1.each(dataset.data, function(rawValue, index) {
+					var value = +me.getRightValue(rawValue);
+					if (isNaN(value) || meta.data[index].hidden) {
+						return;
+					}
+
+					min = Math.min(value, min);
+					max = Math.max(value, max);
+				});
+			}
+		});
+
+		me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
+		me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);
+
+		// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
+		me.handleTickRangeOptions();
+	},
+
+	// Returns the maximum number of ticks based on the scale dimension
+	_computeTickLimit: function() {
+		return Math.ceil(this.drawingArea / getTickBackdropHeight(this.options));
+	},
+
+	convertTicksToLabels: function() {
+		var me = this;
+
+		scale_linearbase.prototype.convertTicksToLabels.call(me);
+
+		// Point labels
+		me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
+	},
+
+	getLabelForIndex: function(index, datasetIndex) {
+		return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
+	},
+
+	fit: function() {
+		var me = this;
+		var opts = me.options;
+
+		if (opts.display && opts.pointLabels.display) {
+			fitWithPointLabels(me);
+		} else {
+			me.setCenterPoint(0, 0, 0, 0);
+		}
 	},
 
 	/**
-	 * Converts the given value into a padding object with pre-computed width/height.
-	 * @param {Number|Object} value - If a number, set the value to all TRBL component,
-	 *  else, if and object, use defined properties and sets undefined ones to 0.
-	 * @returns {Object} The padding values (top, right, bottom, left, width, height)
-	 * @since 2.7.0
+	 * Set radius reductions and determine new radius and center point
+	 * @private
 	 */
-	toPadding: function(value) {
-		var t, r, b, l;
+	setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
+		var me = this;
+		var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
+		var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
+		var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
+		var radiusReductionBottom = -Math.max(furthestLimits.b - (me.height - me.paddingTop), 0) / Math.cos(furthestAngles.b);
 
-		if (helpers.isObject(value)) {
-			t = +value.top || 0;
-			r = +value.right || 0;
-			b = +value.bottom || 0;
-			l = +value.left || 0;
-		} else {
-			t = r = b = l = +value || 0;
+		radiusReductionLeft = numberOrZero(radiusReductionLeft);
+		radiusReductionRight = numberOrZero(radiusReductionRight);
+		radiusReductionTop = numberOrZero(radiusReductionTop);
+		radiusReductionBottom = numberOrZero(radiusReductionBottom);
+
+		me.drawingArea = Math.min(
+			Math.floor(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
+			Math.floor(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
+		me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
+	},
+
+	setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
+		var me = this;
+		var maxRight = me.width - rightMovement - me.drawingArea;
+		var maxLeft = leftMovement + me.drawingArea;
+		var maxTop = topMovement + me.drawingArea;
+		var maxBottom = (me.height - me.paddingTop) - bottomMovement - me.drawingArea;
+
+		me.xCenter = Math.floor(((maxLeft + maxRight) / 2) + me.left);
+		me.yCenter = Math.floor(((maxTop + maxBottom) / 2) + me.top + me.paddingTop);
+	},
+
+	getIndexAngle: function(index) {
+		var angleMultiplier = (Math.PI * 2) / getValueCount(this);
+		var startAngle = this.chart.options && this.chart.options.startAngle ?
+			this.chart.options.startAngle :
+			0;
+
+		var startAngleRadians = startAngle * Math.PI * 2 / 360;
+
+		// Start from the top instead of right, so remove a quarter of the circle
+		return index * angleMultiplier + startAngleRadians;
+	},
+
+	getDistanceFromCenterForValue: function(value) {
+		var me = this;
+
+		if (value === null) {
+			return 0; // null always in center
 		}
 
+		// Take into account half font size + the yPadding of the top value
+		var scalingFactor = me.drawingArea / (me.max - me.min);
+		if (me.options.ticks.reverse) {
+			return (me.max - value) * scalingFactor;
+		}
+		return (value - me.min) * scalingFactor;
+	},
+
+	getPointPosition: function(index, distanceFromCenter) {
+		var me = this;
+		var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
 		return {
-			top: t,
-			right: r,
-			bottom: b,
-			left: l,
-			height: t + b,
-			width: l + r
+			x: Math.cos(thisAngle) * distanceFromCenter + me.xCenter,
+			y: Math.sin(thisAngle) * distanceFromCenter + me.yCenter
 		};
 	},
 
-	/**
-	 * Evaluates the given `inputs` sequentially and returns the first defined value.
-	 * @param {Array[]} inputs - An array of values, falling back to the last value.
-	 * @param {Object} [context] - If defined and the current value is a function, the value
-	 * is called with `context` as first argument and the result becomes the new input.
-	 * @param {Number} [index] - If defined and the current value is an array, the value
-	 * at `index` become the new input.
-	 * @since 2.7.0
-	 */
-	resolve: function(inputs, context, index) {
-		var i, ilen, value;
+	getPointPositionForValue: function(index, value) {
+		return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
+	},
 
-		for (i = 0, ilen = inputs.length; i < ilen; ++i) {
-			value = inputs[i];
-			if (value === undefined) {
-				continue;
-			}
-			if (context !== undefined && typeof value === 'function') {
-				value = value(context);
-			}
-			if (index !== undefined && helpers.isArray(value)) {
-				value = value[index];
-			}
-			if (value !== undefined) {
-				return value;
+	getBasePosition: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
+
+		return me.getPointPositionForValue(0,
+			me.beginAtZero ? 0 :
+			min < 0 && max < 0 ? max :
+			min > 0 && max > 0 ? min :
+			0);
+	},
+
+	draw: function() {
+		var me = this;
+		var opts = me.options;
+		var gridLineOpts = opts.gridLines;
+		var tickOpts = opts.ticks;
+
+		if (opts.display) {
+			var ctx = me.ctx;
+			var startAngle = this.getIndexAngle(0);
+			var tickFont = helpers$1.options._parseFont(tickOpts);
+
+			if (opts.angleLines.display || opts.pointLabels.display) {
+				drawPointLabels(me);
 			}
-		}
-	}
-};
 
-},{"43":43}],46:[function(require,module,exports){
-'use strict';
+			helpers$1.each(me.ticks, function(label, index) {
+				// Don't draw a centre value (if it is minimum)
+				if (index > 0 || tickOpts.reverse) {
+					var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
 
-module.exports = require(43);
-module.exports.easing = require(44);
-module.exports.canvas = require(42);
-module.exports.options = require(45);
+					// Draw circular lines around the scale
+					if (gridLineOpts.display && index !== 0) {
+						drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
+					}
 
-},{"42":42,"43":43,"44":44,"45":45}],47:[function(require,module,exports){
-/**
- * Platform fallback implementation (minimal).
- * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
- */
+					if (tickOpts.display) {
+						var tickFontColor = valueOrDefault$b(tickOpts.fontColor, core_defaults.global.defaultFontColor);
+						ctx.font = tickFont.string;
+
+						ctx.save();
+						ctx.translate(me.xCenter, me.yCenter);
+						ctx.rotate(startAngle);
+
+						if (tickOpts.showLabelBackdrop) {
+							var labelWidth = ctx.measureText(label).width;
+							ctx.fillStyle = tickOpts.backdropColor;
+							ctx.fillRect(
+								-labelWidth / 2 - tickOpts.backdropPaddingX,
+								-yCenterOffset - tickFont.size / 2 - tickOpts.backdropPaddingY,
+								labelWidth + tickOpts.backdropPaddingX * 2,
+								tickFont.size + tickOpts.backdropPaddingY * 2
+							);
+						}
 
-module.exports = {
-	acquireContext: function(item) {
-		if (item && item.canvas) {
-			// Support for any object associated to a canvas (including a context2d)
-			item = item.canvas;
+						ctx.textAlign = 'center';
+						ctx.textBaseline = 'middle';
+						ctx.fillStyle = tickFontColor;
+						ctx.fillText(label, 0, -yCenterOffset);
+						ctx.restore();
+					}
+				}
+			});
 		}
+	}
+});
 
-		return item && item.getContext('2d') || null;
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$3 = defaultConfig$3;
+scale_radialLinear._defaults = _defaults$3;
+
+var valueOrDefault$c = helpers$1.valueOrDefault;
+
+// Integer constants are from the ES6 spec.
+var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
+var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
+
+var INTERVALS = {
+	millisecond: {
+		common: true,
+		size: 1,
+		steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
+	},
+	second: {
+		common: true,
+		size: 1000,
+		steps: [1, 2, 5, 10, 15, 30]
+	},
+	minute: {
+		common: true,
+		size: 60000,
+		steps: [1, 2, 5, 10, 15, 30]
+	},
+	hour: {
+		common: true,
+		size: 3600000,
+		steps: [1, 2, 3, 6, 12]
+	},
+	day: {
+		common: true,
+		size: 86400000,
+		steps: [1, 2, 5]
+	},
+	week: {
+		common: false,
+		size: 604800000,
+		steps: [1, 2, 3, 4]
+	},
+	month: {
+		common: true,
+		size: 2.628e9,
+		steps: [1, 2, 3]
+	},
+	quarter: {
+		common: false,
+		size: 7.884e9,
+		steps: [1, 2, 3, 4]
+	},
+	year: {
+		common: true,
+		size: 3.154e10
 	}
 };
 
-},{}],48:[function(require,module,exports){
-/**
- * Chart.Platform implementation for targeting a web browser
- */
-
-'use strict';
+var UNITS = Object.keys(INTERVALS);
 
-var helpers = require(46);
+function sorter(a, b) {
+	return a - b;
+}
 
-var EXPANDO_KEY = '$chartjs';
-var CSS_PREFIX = 'chartjs-';
-var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
-var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
-var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];
+function arrayUnique(items) {
+	var hash = {};
+	var out = [];
+	var i, ilen, item;
 
-/**
- * DOM event types -> Chart.js event types.
- * Note: only events with different types are mapped.
- * @see https://developer.mozilla.org/en-US/docs/Web/Events
- */
-var EVENT_TYPES = {
-	touchstart: 'mousedown',
-	touchmove: 'mousemove',
-	touchend: 'mouseup',
-	pointerenter: 'mouseenter',
-	pointerdown: 'mousedown',
-	pointermove: 'mousemove',
-	pointerup: 'mouseup',
-	pointerleave: 'mouseout',
-	pointerout: 'mouseout'
-};
+	for (i = 0, ilen = items.length; i < ilen; ++i) {
+		item = items[i];
+		if (!hash[item]) {
+			hash[item] = true;
+			out.push(item);
+		}
+	}
 
-/**
- * The "used" size is the final value of a dimension property after all calculations have
- * been performed. This method uses the computed style of `element` but returns undefined
- * if the computed style is not expressed in pixels. That can happen in some cases where
- * `element` has a size relative to its parent and this last one is not yet displayed,
- * for example because of `display: none` on a parent node.
- * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
- * @returns {Number} Size in pixels or undefined if unknown.
- */
-function readUsedSize(element, property) {
-	var value = helpers.getStyle(element, property);
-	var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
-	return matches ? Number(matches[1]) : undefined;
+	return out;
 }
 
 /**
- * Initializes the canvas style and render size without modifying the canvas display size,
- * since responsiveness is handled by the controller.resize() method. The config is used
- * to determine the aspect ratio to apply in case no explicit height has been specified.
+ * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
+ * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
+ * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
+ * extremity (left + width or top + height). Note that it would be more optimized to directly
+ * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
+ * to create the lookup table. The table ALWAYS contains at least two items: min and max.
+ *
+ * @param {number[]} timestamps - timestamps sorted from lowest to highest.
+ * @param {string} distribution - If 'linear', timestamps will be spread linearly along the min
+ * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
+ * If 'series', timestamps will be positioned at the same distance from each other. In this
+ * case, only timestamps that break the time linearity are registered, meaning that in the
+ * best case, all timestamps are linear, the table contains only min and max.
  */
-function initCanvas(canvas, config) {
-	var style = canvas.style;
+function buildLookupTable(timestamps, min, max, distribution) {
+	if (distribution === 'linear' || !timestamps.length) {
+		return [
+			{time: min, pos: 0},
+			{time: max, pos: 1}
+		];
+	}
 
-	// NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
-	// returns null or '' if no explicit value has been set to the canvas attribute.
-	var renderHeight = canvas.getAttribute('height');
-	var renderWidth = canvas.getAttribute('width');
+	var table = [];
+	var items = [min];
+	var i, ilen, prev, curr, next;
 
-	// Chart.js modifies some canvas values that we want to restore on destroy
-	canvas[EXPANDO_KEY] = {
-		initial: {
-			height: renderHeight,
-			width: renderWidth,
-			style: {
-				display: style.display,
-				height: style.height,
-				width: style.width
-			}
+	for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
+		curr = timestamps[i];
+		if (curr > min && curr < max) {
+			items.push(curr);
 		}
-	};
+	}
 
-	// Force canvas to display as block to avoid extra space caused by inline
-	// elements, which would interfere with the responsive resize process.
-	// https://github.com/chartjs/Chart.js/issues/2538
-	style.display = style.display || 'block';
+	items.push(max);
 
-	if (renderWidth === null || renderWidth === '') {
-		var displayWidth = readUsedSize(canvas, 'width');
-		if (displayWidth !== undefined) {
-			canvas.width = displayWidth;
+	for (i = 0, ilen = items.length; i < ilen; ++i) {
+		next = items[i + 1];
+		prev = items[i - 1];
+		curr = items[i];
+
+		// only add points that breaks the scale linearity
+		if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
+			table.push({time: curr, pos: i / (ilen - 1)});
 		}
 	}
 
-	if (renderHeight === null || renderHeight === '') {
-		if (canvas.style.height === '') {
-			// If no explicit render height and style height, let's apply the aspect ratio,
-			// which one can be specified by the user but also by charts as default option
-			// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
-			canvas.height = canvas.width / (config.options.aspectRatio || 2);
+	return table;
+}
+
+// @see adapted from https://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
+function lookup(table, key, value) {
+	var lo = 0;
+	var hi = table.length - 1;
+	var mid, i0, i1;
+
+	while (lo >= 0 && lo <= hi) {
+		mid = (lo + hi) >> 1;
+		i0 = table[mid - 1] || null;
+		i1 = table[mid];
+
+		if (!i0) {
+			// given value is outside table (before first item)
+			return {lo: null, hi: i1};
+		} else if (i1[key] < value) {
+			lo = mid + 1;
+		} else if (i0[key] > value) {
+			hi = mid - 1;
 		} else {
-			var displayHeight = readUsedSize(canvas, 'height');
-			if (displayWidth !== undefined) {
-				canvas.height = displayHeight;
-			}
+			return {lo: i0, hi: i1};
 		}
 	}
 
-	return canvas;
+	// given value is outside table (after last item)
+	return {lo: i1, hi: null};
 }
 
 /**
- * Detects support for options object argument in addEventListener.
- * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
- * @private
+ * Linearly interpolates the given source `value` using the table items `skey` values and
+ * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
+ * returns the position for a timestamp equal to 42. If value is out of bounds, values at
+ * index [0, 1] or [n - 1, n] are used for the interpolation.
  */
-var supportsEventListenerOptions = (function() {
-	var supports = false;
-	try {
-		var options = Object.defineProperty({}, 'passive', {
-			get: function() {
-				supports = true;
-			}
-		});
-		window.addEventListener('e', null, options);
-	} catch (e) {
-		// continue regardless of error
-	}
-	return supports;
-}());
+function interpolate$1(table, skey, sval, tkey) {
+	var range = lookup(table, skey, sval);
 
-// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
-// https://github.com/chartjs/Chart.js/issues/4287
-var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;
+	// Note: the lookup table ALWAYS contains at least 2 items (min and max)
+	var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
+	var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;
 
-function addEventListener(node, type, listener) {
-	node.addEventListener(type, listener, eventListenerOptions);
-}
+	var span = next[skey] - prev[skey];
+	var ratio = span ? (sval - prev[skey]) / span : 0;
+	var offset = (next[tkey] - prev[tkey]) * ratio;
 
-function removeEventListener(node, type, listener) {
-	node.removeEventListener(type, listener, eventListenerOptions);
+	return prev[tkey] + offset;
 }
 
-function createEvent(type, chart, x, y, nativeEvent) {
-	return {
-		type: type,
-		chart: chart,
-		native: nativeEvent || null,
-		x: x !== undefined ? x : null,
-		y: y !== undefined ? y : null,
-	};
-}
+function toTimestamp(scale, input) {
+	var adapter = scale._adapter;
+	var options = scale.options.time;
+	var parser = options.parser;
+	var format = parser || options.format;
+	var value = input;
 
-function fromNativeEvent(event, chart) {
-	var type = EVENT_TYPES[event.type] || event.type;
-	var pos = helpers.getRelativePosition(event, chart);
-	return createEvent(type, chart, pos.x, pos.y, event);
-}
+	if (typeof parser === 'function') {
+		value = parser(value);
+	}
 
-function throttled(fn, thisArg) {
-	var ticking = false;
-	var args = [];
+	// Only parse if its not a timestamp already
+	if (!helpers$1.isFinite(value)) {
+		value = typeof format === 'string'
+			? adapter.parse(value, format)
+			: adapter.parse(value);
+	}
 
-	return function() {
-		args = Array.prototype.slice.call(arguments);
-		thisArg = thisArg || this;
+	if (value !== null) {
+		return +value;
+	}
 
-		if (!ticking) {
-			ticking = true;
-			helpers.requestAnimFrame.call(window, function() {
-				ticking = false;
-				fn.apply(thisArg, args);
-			});
+	// Labels are in an incompatible format and no `parser` has been provided.
+	// The user might still use the deprecated `format` option for parsing.
+	if (!parser && typeof format === 'function') {
+		value = format(input);
+
+		// `format` could return something else than a timestamp, if so, parse it
+		if (!helpers$1.isFinite(value)) {
+			value = adapter.parse(value);
 		}
-	};
+	}
+
+	return value;
 }
 
-// Implementation based on https://github.com/marcj/css-element-queries
-function createResizer(handler) {
-	var resizer = document.createElement('div');
-	var cls = CSS_PREFIX + 'size-monitor';
-	var maxSize = 1000000;
-	var style =
-		'position:absolute;' +
-		'left:0;' +
-		'top:0;' +
-		'right:0;' +
-		'bottom:0;' +
-		'overflow:hidden;' +
-		'pointer-events:none;' +
-		'visibility:hidden;' +
-		'z-index:-1;';
-
-	resizer.style.cssText = style;
-	resizer.className = cls;
-	resizer.innerHTML =
-		'<div class="' + cls + '-expand" style="' + style + '">' +
-			'<div style="' +
-				'position:absolute;' +
-				'width:' + maxSize + 'px;' +
-				'height:' + maxSize + 'px;' +
-				'left:0;' +
-				'top:0">' +
-			'</div>' +
-		'</div>' +
-		'<div class="' + cls + '-shrink" style="' + style + '">' +
-			'<div style="' +
-				'position:absolute;' +
-				'width:200%;' +
-				'height:200%;' +
-				'left:0; ' +
-				'top:0">' +
-			'</div>' +
-		'</div>';
-
-	var expand = resizer.childNodes[0];
-	var shrink = resizer.childNodes[1];
+function parse(scale, input) {
+	if (helpers$1.isNullOrUndef(input)) {
+		return null;
+	}
 
-	resizer._reset = function() {
-		expand.scrollLeft = maxSize;
-		expand.scrollTop = maxSize;
-		shrink.scrollLeft = maxSize;
-		shrink.scrollTop = maxSize;
-	};
-	var onScroll = function() {
-		resizer._reset();
-		handler();
-	};
+	var options = scale.options.time;
+	var value = toTimestamp(scale, scale.getRightValue(input));
+	if (value === null) {
+		return value;
+	}
 
-	addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
-	addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));
+	if (options.round) {
+		value = +scale._adapter.startOf(value, options.round);
+	}
 
-	return resizer;
+	return value;
 }
 
-// https://davidwalsh.name/detect-node-insertion
-function watchForRender(node, handler) {
-	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
-	var proxy = expando.renderProxy = function(e) {
-		if (e.animationName === CSS_RENDER_ANIMATION) {
-			handler();
-		}
-	};
+/**
+ * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
+ * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
+ */
+function determineStepSize(min, max, unit, capacity) {
+	var range = max - min;
+	var interval = INTERVALS[unit];
+	var milliseconds = interval.size;
+	var steps = interval.steps;
+	var i, ilen, factor;
 
-	helpers.each(ANIMATION_START_EVENTS, function(type) {
-		addEventListener(node, type, proxy);
-	});
+	if (!steps) {
+		return Math.ceil(range / (capacity * milliseconds));
+	}
 
-	// #4737: Chrome might skip the CSS animation when the CSS_RENDER_MONITOR class
-	// is removed then added back immediately (same animation frame?). Accessing the
-	// `offsetParent` property will force a reflow and re-evaluate the CSS animation.
-	// https://gist.github.com/paulirish/5d52fb081b3570c81e3a#box-metrics
-	// https://github.com/chartjs/Chart.js/issues/4737
-	expando.reflow = !!node.offsetParent;
+	for (i = 0, ilen = steps.length; i < ilen; ++i) {
+		factor = steps[i];
+		if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
+			break;
+		}
+	}
 
-	node.classList.add(CSS_RENDER_MONITOR);
+	return factor;
 }
 
-function unwatchForRender(node) {
-	var expando = node[EXPANDO_KEY] || {};
-	var proxy = expando.renderProxy;
+/**
+ * Figures out what unit results in an appropriate number of auto-generated ticks
+ */
+function determineUnitForAutoTicks(minUnit, min, max, capacity) {
+	var ilen = UNITS.length;
+	var i, interval, factor;
 
-	if (proxy) {
-		helpers.each(ANIMATION_START_EVENTS, function(type) {
-			removeEventListener(node, type, proxy);
-		});
+	for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
+		interval = INTERVALS[UNITS[i]];
+		factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;
 
-		delete expando.renderProxy;
+		if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
+			return UNITS[i];
+		}
 	}
 
-	node.classList.remove(CSS_RENDER_MONITOR);
+	return UNITS[ilen - 1];
 }
 
-function addResizeListener(node, listener, chart) {
-	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
+/**
+ * Figures out what unit to format a set of ticks with
+ */
+function determineUnitForFormatting(scale, ticks, minUnit, min, max) {
+	var ilen = UNITS.length;
+	var i, unit;
 
-	// Let's keep track of this added resizer and thus avoid DOM query when removing it.
-	var resizer = expando.resizer = createResizer(throttled(function() {
-		if (expando.resizer) {
-			return listener(createEvent('resize', chart));
+	for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
+		unit = UNITS[i];
+		if (INTERVALS[unit].common && scale._adapter.diff(max, min, unit) >= ticks.length) {
+			return unit;
 		}
-	}));
+	}
 
-	// The resizer needs to be attached to the node parent, so we first need to be
-	// sure that `node` is attached to the DOM before injecting the resizer element.
-	watchForRender(node, function() {
-		if (expando.resizer) {
-			var container = node.parentNode;
-			if (container && container !== resizer.parentNode) {
-				container.insertBefore(resizer, container.firstChild);
-			}
+	return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
+}
 
-			// The container size might have changed, let's reset the resizer state.
-			resizer._reset();
+function determineMajorUnit(unit) {
+	for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
+		if (INTERVALS[UNITS[i]].common) {
+			return UNITS[i];
 		}
-	});
+	}
 }
 
-function removeResizeListener(node) {
-	var expando = node[EXPANDO_KEY] || {};
-	var resizer = expando.resizer;
+/**
+ * Generates a maximum of `capacity` timestamps between min and max, rounded to the
+ * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
+ * Important: this method can return ticks outside the min and max range, it's the
+ * responsibility of the calling code to clamp values if needed.
+ */
+function generate(scale, min, max, capacity) {
+	var adapter = scale._adapter;
+	var options = scale.options;
+	var timeOpts = options.time;
+	var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
+	var major = determineMajorUnit(minor);
+	var stepSize = valueOrDefault$c(timeOpts.stepSize, timeOpts.unitStepSize);
+	var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
+	var majorTicksEnabled = options.ticks.major.enabled;
+	var interval = INTERVALS[minor];
+	var first = min;
+	var last = max;
+	var ticks = [];
+	var time;
 
-	delete expando.resizer;
-	unwatchForRender(node);
+	if (!stepSize) {
+		stepSize = determineStepSize(min, max, minor, capacity);
+	}
 
-	if (resizer && resizer.parentNode) {
-		resizer.parentNode.removeChild(resizer);
+	// For 'week' unit, handle the first day of week option
+	if (weekday) {
+		first = +adapter.startOf(first, 'isoWeek', weekday);
+		last = +adapter.startOf(last, 'isoWeek', weekday);
+	}
+
+	// Align first/last ticks on unit
+	first = +adapter.startOf(first, weekday ? 'day' : minor);
+	last = +adapter.startOf(last, weekday ? 'day' : minor);
+
+	// Make sure that the last tick include max
+	if (last < max) {
+		last = +adapter.add(last, 1, minor);
 	}
+
+	time = first;
+
+	if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
+		// Align the first tick on the previous `minor` unit aligned on the `major` unit:
+		// we first aligned time on the previous `major` unit then add the number of full
+		// stepSize there is between first and the previous major time.
+		time = +adapter.startOf(time, major);
+		time = +adapter.add(time, ~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
+	}
+
+	for (; time < last; time = +adapter.add(time, stepSize, minor)) {
+		ticks.push(+time);
+	}
+
+	ticks.push(+time);
+
+	return ticks;
 }
 
-function injectCSS(platform, css) {
-	// http://stackoverflow.com/q/3922139
-	var style = platform._style || document.createElement('style');
-	if (!platform._style) {
-		platform._style = style;
-		css = '/* Chart.js */\n' + css;
-		style.setAttribute('type', 'text/css');
-		document.getElementsByTagName('head')[0].appendChild(style);
+/**
+ * Returns the start and end offsets from edges in the form of {start, end}
+ * where each value is a relative width to the scale and ranges between 0 and 1.
+ * They add extra margins on the both sides by scaling down the original scale.
+ * Offsets are added when the `offset` option is true.
+ */
+function computeOffsets(table, ticks, min, max, options) {
+	var start = 0;
+	var end = 0;
+	var first, last;
+
+	if (options.offset && ticks.length) {
+		if (!options.time.min) {
+			first = interpolate$1(table, 'time', ticks[0], 'pos');
+			if (ticks.length === 1) {
+				start = 1 - first;
+			} else {
+				start = (interpolate$1(table, 'time', ticks[1], 'pos') - first) / 2;
+			}
+		}
+		if (!options.time.max) {
+			last = interpolate$1(table, 'time', ticks[ticks.length - 1], 'pos');
+			if (ticks.length === 1) {
+				end = last;
+			} else {
+				end = (last - interpolate$1(table, 'time', ticks[ticks.length - 2], 'pos')) / 2;
+			}
+		}
 	}
 
-	style.appendChild(document.createTextNode(css));
+	return {start: start, end: end};
+}
+
+function ticksFromTimestamps(scale, values, majorUnit) {
+	var ticks = [];
+	var i, ilen, value, major;
+
+	for (i = 0, ilen = values.length; i < ilen; ++i) {
+		value = values[i];
+		major = majorUnit ? value === +scale._adapter.startOf(value, majorUnit) : false;
+
+		ticks.push({
+			value: value,
+			major: major
+		});
+	}
+
+	return ticks;
 }
 
-module.exports = {
+var defaultConfig$4 = {
+	position: 'bottom',
+
 	/**
-	 * This property holds whether this platform is enabled for the current environment.
-	 * Currently used by platform.js to select the proper implementation.
-	 * @private
+	 * Data distribution along the scale:
+	 * - 'linear': data are spread according to their time (distances can vary),
+	 * - 'series': data are spread at the same distance from each other.
+	 * @see https://github.com/chartjs/Chart.js/pull/4507
+	 * @since 2.7.0
 	 */
-	_enabled: typeof window !== 'undefined' && typeof document !== 'undefined',
+	distribution: 'linear',
 
-	initialize: function() {
-		var keyframes = 'from{opacity:0.99}to{opacity:1}';
-
-		injectCSS(this,
-			// DOM rendering detection
-			// https://davidwalsh.name/detect-node-insertion
-			'@-webkit-keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
-			'@keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
-			'.' + CSS_RENDER_MONITOR + '{' +
-				'-webkit-animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
-				'animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
-			'}'
-		);
+	/**
+	 * Scale boundary strategy (bypassed by min/max time options)
+	 * - `data`: make sure data are fully visible, ticks outside are removed
+	 * - `ticks`: make sure ticks are fully visible, data outside are truncated
+	 * @see https://github.com/chartjs/Chart.js/pull/4556
+	 * @since 2.7.0
+	 */
+	bounds: 'data',
+
+	adapters: {},
+	time: {
+		parser: false, // false == a pattern string from https://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
+		format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from https://momentjs.com/docs/#/parsing/string-format/
+		unit: false, // false == automatic or override with week, month, year, etc.
+		round: false, // none, or override with week, month, year, etc.
+		displayFormat: false, // DEPRECATED
+		isoWeekday: false, // override week start day - see https://momentjs.com/docs/#/get-set/iso-weekday/
+		minUnit: 'millisecond',
+		displayFormats: {}
 	},
+	ticks: {
+		autoSkip: false,
 
-	acquireContext: function(item, config) {
-		if (typeof item === 'string') {
-			item = document.getElementById(item);
-		} else if (item.length) {
-			// Support for array based queries (such as jQuery)
-			item = item[0];
-		}
+		/**
+		 * Ticks generation input values:
+		 * - 'auto': generates "optimal" ticks based on scale size and time options.
+		 * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
+		 * - 'labels': generates ticks from user given `data.labels` values ONLY.
+		 * @see https://github.com/chartjs/Chart.js/pull/4507
+		 * @since 2.7.0
+		 */
+		source: 'auto',
 
-		if (item && item.canvas) {
-			// Support for any object associated to a canvas (including a context2d)
-			item = item.canvas;
+		major: {
+			enabled: false
 		}
+	}
+};
 
-		// To prevent canvas fingerprinting, some add-ons undefine the getContext
-		// method, for example: https://github.com/kkapsner/CanvasBlocker
-		// https://github.com/chartjs/Chart.js/issues/2807
-		var context = item && item.getContext && item.getContext('2d');
+var scale_time = core_scale.extend({
+	initialize: function() {
+		this.mergeTicksOptions();
+		core_scale.prototype.initialize.call(this);
+	},
 
-		// `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
-		// inside an iframe or when running in a protected environment. We could guess the
-		// types from their toString() value but let's keep things flexible and assume it's
-		// a sufficient condition if the item has a context2D which has item as `canvas`.
-		// https://github.com/chartjs/Chart.js/issues/3887
-		// https://github.com/chartjs/Chart.js/issues/4102
-		// https://github.com/chartjs/Chart.js/issues/4152
-		if (context && context.canvas === item) {
-			initCanvas(item, config);
-			return context;
+	update: function() {
+		var me = this;
+		var options = me.options;
+		var time = options.time || (options.time = {});
+		var adapter = me._adapter = new core_adapters._date(options.adapters.date);
+
+		// DEPRECATIONS: output a message only one time per update
+		if (time.format) {
+			console.warn('options.time.format is deprecated and replaced by options.time.parser.');
 		}
 
-		return null;
+		// Backward compatibility: before introducing adapter, `displayFormats` was
+		// supposed to contain *all* unit/string pairs but this can't be resolved
+		// when loading the scale (adapters are loaded afterward), so let's populate
+		// missing formats on update
+		helpers$1.mergeIf(time.displayFormats, adapter.formats());
+
+		return core_scale.prototype.update.apply(me, arguments);
 	},
 
-	releaseContext: function(context) {
-		var canvas = context.canvas;
-		if (!canvas[EXPANDO_KEY]) {
-			return;
+	/**
+	 * Allows data to be referenced via 't' attribute
+	 */
+	getRightValue: function(rawValue) {
+		if (rawValue && rawValue.t !== undefined) {
+			rawValue = rawValue.t;
 		}
+		return core_scale.prototype.getRightValue.call(this, rawValue);
+	},
 
-		var initial = canvas[EXPANDO_KEY].initial;
-		['height', 'width'].forEach(function(prop) {
-			var value = initial[prop];
-			if (helpers.isNullOrUndef(value)) {
-				canvas.removeAttribute(prop);
+	determineDataLimits: function() {
+		var me = this;
+		var chart = me.chart;
+		var adapter = me._adapter;
+		var timeOpts = me.options.time;
+		var unit = timeOpts.unit || 'day';
+		var min = MAX_INTEGER;
+		var max = MIN_INTEGER;
+		var timestamps = [];
+		var datasets = [];
+		var labels = [];
+		var i, j, ilen, jlen, data, timestamp;
+		var dataLabels = chart.data.labels || [];
+
+		// Convert labels to timestamps
+		for (i = 0, ilen = dataLabels.length; i < ilen; ++i) {
+			labels.push(parse(me, dataLabels[i]));
+		}
+
+		// Convert data to timestamps
+		for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
+			if (chart.isDatasetVisible(i)) {
+				data = chart.data.datasets[i].data;
+
+				// Let's consider that all data have the same format.
+				if (helpers$1.isObject(data[0])) {
+					datasets[i] = [];
+
+					for (j = 0, jlen = data.length; j < jlen; ++j) {
+						timestamp = parse(me, data[j]);
+						timestamps.push(timestamp);
+						datasets[i][j] = timestamp;
+					}
+				} else {
+					for (j = 0, jlen = labels.length; j < jlen; ++j) {
+						timestamps.push(labels[j]);
+					}
+					datasets[i] = labels.slice(0);
+				}
 			} else {
-				canvas.setAttribute(prop, value);
+				datasets[i] = [];
 			}
-		});
+		}
 
-		helpers.each(initial.style || {}, function(value, key) {
-			canvas.style[key] = value;
-		});
+		if (labels.length) {
+			// Sort labels **after** data have been converted
+			labels = arrayUnique(labels).sort(sorter);
+			min = Math.min(min, labels[0]);
+			max = Math.max(max, labels[labels.length - 1]);
+		}
 
-		// The canvas render size might have been changed (and thus the state stack discarded),
-		// we can't use save() and restore() to restore the initial state. So make sure that at
-		// least the canvas context is reset to the default state by setting the canvas width.
-		// https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
-		canvas.width = canvas.width;
+		if (timestamps.length) {
+			timestamps = arrayUnique(timestamps).sort(sorter);
+			min = Math.min(min, timestamps[0]);
+			max = Math.max(max, timestamps[timestamps.length - 1]);
+		}
 
-		delete canvas[EXPANDO_KEY];
-	},
+		min = parse(me, timeOpts.min) || min;
+		max = parse(me, timeOpts.max) || max;
 
-	addEventListener: function(chart, type, listener) {
-		var canvas = chart.canvas;
-		if (type === 'resize') {
-			// Note: the resize event is not supported on all browsers.
-			addResizeListener(canvas, listener, chart);
-			return;
-		}
+		// In case there is no valid min/max, set limits based on unit time option
+		min = min === MAX_INTEGER ? +adapter.startOf(Date.now(), unit) : min;
+		max = max === MIN_INTEGER ? +adapter.endOf(Date.now(), unit) + 1 : max;
 
-		var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
-		var proxies = expando.proxies || (expando.proxies = {});
-		var proxy = proxies[chart.id + '_' + type] = function(event) {
-			listener(fromNativeEvent(event, chart));
-		};
+		// Make sure that max is strictly higher than min (required by the lookup table)
+		me.min = Math.min(min, max);
+		me.max = Math.max(min + 1, max);
 
-		addEventListener(canvas, type, proxy);
+		// PRIVATE
+		me._horizontal = me.isHorizontal();
+		me._table = [];
+		me._timestamps = {
+			data: timestamps,
+			datasets: datasets,
+			labels: labels
+		};
 	},
 
-	removeEventListener: function(chart, type, listener) {
-		var canvas = chart.canvas;
-		if (type === 'resize') {
-			// Note: the resize event is not supported on all browsers.
-			removeResizeListener(canvas, listener);
-			return;
+	buildTicks: function() {
+		var me = this;
+		var min = me.min;
+		var max = me.max;
+		var options = me.options;
+		var timeOpts = options.time;
+		var timestamps = [];
+		var ticks = [];
+		var i, ilen, timestamp;
+
+		switch (options.ticks.source) {
+		case 'data':
+			timestamps = me._timestamps.data;
+			break;
+		case 'labels':
+			timestamps = me._timestamps.labels;
+			break;
+		case 'auto':
+		default:
+			timestamps = generate(me, min, max, me.getLabelCapacity(min), options);
 		}
 
-		var expando = listener[EXPANDO_KEY] || {};
-		var proxies = expando.proxies || {};
-		var proxy = proxies[chart.id + '_' + type];
-		if (!proxy) {
-			return;
+		if (options.bounds === 'ticks' && timestamps.length) {
+			min = timestamps[0];
+			max = timestamps[timestamps.length - 1];
 		}
 
-		removeEventListener(canvas, type, proxy);
-	}
-};
+		// Enforce limits with user min/max options
+		min = parse(me, timeOpts.min) || min;
+		max = parse(me, timeOpts.max) || max;
 
-// DEPRECATIONS
+		// Remove ticks outside the min/max range
+		for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
+			timestamp = timestamps[i];
+			if (timestamp >= min && timestamp <= max) {
+				ticks.push(timestamp);
+			}
+		}
 
-/**
- * Provided for backward compatibility, use EventTarget.addEventListener instead.
- * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
- * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
- * @function Chart.helpers.addEvent
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.addEvent = addEventListener;
+		me.min = min;
+		me.max = max;
 
-/**
- * Provided for backward compatibility, use EventTarget.removeEventListener instead.
- * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
- * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
- * @function Chart.helpers.removeEvent
- * @deprecated since version 2.7.0
- * @todo remove at version 3
- * @private
- */
-helpers.removeEvent = removeEventListener;
+		// PRIVATE
+		me._unit = timeOpts.unit || determineUnitForFormatting(me, ticks, timeOpts.minUnit, me.min, me.max);
+		me._majorUnit = determineMajorUnit(me._unit);
+		me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
+		me._offsets = computeOffsets(me._table, ticks, min, max, options);
 
-},{"46":46}],49:[function(require,module,exports){
-'use strict';
+		if (options.ticks.reverse) {
+			ticks.reverse();
+		}
 
-var helpers = require(46);
-var basic = require(47);
-var dom = require(48);
+		return ticksFromTimestamps(me, ticks, me._majorUnit);
+	},
 
-// @TODO Make possible to select another platform at build time.
-var implementation = dom._enabled ? dom : basic;
+	getLabelForIndex: function(index, datasetIndex) {
+		var me = this;
+		var adapter = me._adapter;
+		var data = me.chart.data;
+		var timeOpts = me.options.time;
+		var label = data.labels && index < data.labels.length ? data.labels[index] : '';
+		var value = data.datasets[datasetIndex].data[index];
 
-/**
- * @namespace Chart.platform
- * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
- * @since 2.4.0
- */
-module.exports = helpers.extend({
-	/**
-	 * @since 2.7.0
-	 */
-	initialize: function() {},
+		if (helpers$1.isObject(value)) {
+			label = me.getRightValue(value);
+		}
+		if (timeOpts.tooltipFormat) {
+			return adapter.format(toTimestamp(me, label), timeOpts.tooltipFormat);
+		}
+		if (typeof label === 'string') {
+			return label;
+		}
+		return adapter.format(toTimestamp(me, label), timeOpts.displayFormats.datetime);
+	},
 
 	/**
-	 * Called at chart construction time, returns a context2d instance implementing
-	 * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
-	 * @param {*} item - The native item from which to acquire context (platform specific)
-	 * @param {Object} options - The chart options
-	 * @returns {CanvasRenderingContext2D} context2d instance
+	 * Function to format an individual tick mark
+	 * @private
 	 */
-	acquireContext: function() {},
+	tickFormatFunction: function(time, index, ticks, format) {
+		var me = this;
+		var adapter = me._adapter;
+		var options = me.options;
+		var formats = options.time.displayFormats;
+		var minorFormat = formats[me._unit];
+		var majorUnit = me._majorUnit;
+		var majorFormat = formats[majorUnit];
+		var majorTime = +adapter.startOf(time, majorUnit);
+		var majorTickOpts = options.ticks.major;
+		var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
+		var label = adapter.format(time, format ? format : major ? majorFormat : minorFormat);
+		var tickOpts = major ? majorTickOpts : options.ticks.minor;
+		var formatter = valueOrDefault$c(tickOpts.callback, tickOpts.userCallback);
+
+		return formatter ? formatter(label, index, ticks) : label;
+	},
+
+	convertTicksToLabels: function(ticks) {
+		var labels = [];
+		var i, ilen;
+
+		for (i = 0, ilen = ticks.length; i < ilen; ++i) {
+			labels.push(this.tickFormatFunction(ticks[i].value, i, ticks));
+		}
+
+		return labels;
+	},
 
 	/**
-	 * Called at chart destruction time, releases any resources associated to the context
-	 * previously returned by the acquireContext() method.
-	 * @param {CanvasRenderingContext2D} context - The context2d instance
-	 * @returns {Boolean} true if the method succeeded, else false
+	 * @private
 	 */
-	releaseContext: function() {},
+	getPixelForOffset: function(time) {
+		var me = this;
+		var isReverse = me.options.ticks.reverse;
+		var size = me._horizontal ? me.width : me.height;
+		var start = me._horizontal ? isReverse ? me.right : me.left : isReverse ? me.bottom : me.top;
+		var pos = interpolate$1(me._table, 'time', time, 'pos');
+		var offset = size * (me._offsets.start + pos) / (me._offsets.start + 1 + me._offsets.end);
+
+		return isReverse ? start - offset : start + offset;
+	},
+
+	getPixelForValue: function(value, index, datasetIndex) {
+		var me = this;
+		var time = null;
+
+		if (index !== undefined && datasetIndex !== undefined) {
+			time = me._timestamps.datasets[datasetIndex][index];
+		}
+
+		if (time === null) {
+			time = parse(me, value);
+		}
+
+		if (time !== null) {
+			return me.getPixelForOffset(time);
+		}
+	},
+
+	getPixelForTick: function(index) {
+		var ticks = this.getTicks();
+		return index >= 0 && index < ticks.length ?
+			this.getPixelForOffset(ticks[index].value) :
+			null;
+	},
+
+	getValueForPixel: function(pixel) {
+		var me = this;
+		var size = me._horizontal ? me.width : me.height;
+		var start = me._horizontal ? me.left : me.top;
+		var pos = (size ? (pixel - start) / size : 0) * (me._offsets.start + 1 + me._offsets.start) - me._offsets.end;
+		var time = interpolate$1(me._table, 'pos', pos, 'time');
+
+		// DEPRECATION, we should return time directly
+		return me._adapter._create(time);
+	},
 
 	/**
-	 * Registers the specified listener on the given chart.
-	 * @param {Chart} chart - Chart from which to listen for event
-	 * @param {String} type - The ({@link IEvent}) type to listen for
-	 * @param {Function} listener - Receives a notification (an object that implements
-	 * the {@link IEvent} interface) when an event of the specified type occurs.
+	 * Crude approximation of what the label width might be
+	 * @private
 	 */
-	addEventListener: function() {},
+	getLabelWidth: function(label) {
+		var me = this;
+		var ticksOpts = me.options.ticks;
+		var tickLabelWidth = me.ctx.measureText(label).width;
+		var angle = helpers$1.toRadians(ticksOpts.maxRotation);
+		var cosRotation = Math.cos(angle);
+		var sinRotation = Math.sin(angle);
+		var tickFontSize = valueOrDefault$c(ticksOpts.fontSize, core_defaults.global.defaultFontSize);
+
+		return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
+	},
 
 	/**
-	 * Removes the specified listener previously registered with addEventListener.
-	 * @param {Chart} chart -Chart from which to remove the listener
-	 * @param {String} type - The ({@link IEvent}) type to remove
-	 * @param {Function} listener - The listener function to remove from the event target.
+	 * @private
 	 */
-	removeEventListener: function() {}
+	getLabelCapacity: function(exampleTime) {
+		var me = this;
 
-}, implementation);
+		// pick the longest format (milliseconds) for guestimation
+		var format = me.options.time.displayFormats.millisecond;
+		var exampleLabel = me.tickFormatFunction(exampleTime, 0, [], format);
+		var tickLabelWidth = me.getLabelWidth(exampleLabel);
+		var innerWidth = me.isHorizontal() ? me.width : me.height;
+		var capacity = Math.floor(innerWidth / tickLabelWidth);
 
-/**
- * @interface IPlatform
- * Allows abstracting platform dependencies away from the chart
- * @borrows Chart.platform.acquireContext as acquireContext
- * @borrows Chart.platform.releaseContext as releaseContext
- * @borrows Chart.platform.addEventListener as addEventListener
- * @borrows Chart.platform.removeEventListener as removeEventListener
- */
+		return capacity > 0 ? capacity : 1;
+	}
+});
 
-/**
- * @interface IEvent
- * @prop {String} type - The event type name, possible values are:
- * 'contextmenu', 'mouseenter', 'mousedown', 'mousemove', 'mouseup', 'mouseout',
- * 'click', 'dblclick', 'keydown', 'keypress', 'keyup' and 'resize'
- * @prop {*} native - The original native event (null for emulated events, e.g. 'resize')
- * @prop {Number} x - The mouse x position, relative to the canvas (null for incompatible events)
- * @prop {Number} y - The mouse y position, relative to the canvas (null for incompatible events)
- */
+// INTERNAL: static default options, registered in src/index.js
+var _defaults$4 = defaultConfig$4;
+scale_time._defaults = _defaults$4;
 
-},{"46":46,"47":47,"48":48}],50:[function(require,module,exports){
-'use strict';
+var scales = {
+	category: scale_category,
+	linear: scale_linear,
+	logarithmic: scale_logarithmic,
+	radialLinear: scale_radialLinear,
+	time: scale_time
+};
 
-module.exports = {};
-module.exports.filler = require(51);
-module.exports.legend = require(52);
-module.exports.title = require(53);
+var FORMATS = {
+	datetime: 'MMM D, YYYY, h:mm:ss a',
+	millisecond: 'h:mm:ss.SSS a',
+	second: 'h:mm:ss a',
+	minute: 'h:mm a',
+	hour: 'hA',
+	day: 'MMM D',
+	week: 'll',
+	month: 'MMM YYYY',
+	quarter: '[Q]Q - YYYY',
+	year: 'YYYY'
+};
 
-},{"51":51,"52":52,"53":53}],51:[function(require,module,exports){
-/**
- * Plugin based on discussion from the following Chart.js issues:
- * @see https://github.com/chartjs/Chart.js/issues/2380#issuecomment-279961569
- * @see https://github.com/chartjs/Chart.js/issues/2440#issuecomment-256461897
- */
+core_adapters._date.override(typeof moment === 'function' ? {
+	_id: 'moment', // DEBUG ONLY
 
-'use strict';
+	formats: function() {
+		return FORMATS;
+	},
 
-var defaults = require(26);
-var elements = require(41);
-var helpers = require(46);
+	parse: function(value, format) {
+		if (typeof value === 'string' && typeof format === 'string') {
+			value = moment(value, format);
+		} else if (!(value instanceof moment)) {
+			value = moment(value);
+		}
+		return value.isValid() ? value.valueOf() : null;
+	},
 
-defaults._set('global', {
+	format: function(time, format) {
+		return moment(time).format(format);
+	},
+
+	add: function(time, amount, unit) {
+		return moment(time).add(amount, unit).valueOf();
+	},
+
+	diff: function(max, min, unit) {
+		return moment.duration(moment(max).diff(moment(min))).as(unit);
+	},
+
+	startOf: function(time, unit, weekday) {
+		time = moment(time);
+		if (unit === 'isoWeek') {
+			return time.isoWeekday(weekday).valueOf();
+		}
+		return time.startOf(unit).valueOf();
+	},
+
+	endOf: function(time, unit) {
+		return moment(time).endOf(unit).valueOf();
+	},
+
+	// DEPRECATIONS
+
+	/**
+	 * Provided for backward compatibility with scale.getValueForPixel().
+	 * @deprecated since version 2.8.0
+	 * @todo remove at version 3
+	 * @private
+	 */
+	_create: function(time) {
+		return moment(time);
+	},
+} : {});
+
+core_defaults._set('global', {
 	plugins: {
 		filler: {
 			propagate: true
@@ -11231,7 +13501,7 @@ function computeBoundary(source) {
 			return target;
 		}
 
-		if (typeof target === 'number' && isFinite(target)) {
+		if (helpers$1.isFinite(target)) {
 			horizontal = scale.isHorizontal();
 			return {
 				x: horizontal ? target : null,
@@ -11303,7 +13573,7 @@ function drawArea(ctx, curve0, curve1, len0, len1) {
 	// building first area curve (normal)
 	ctx.moveTo(curve0[0].x, curve0[0].y);
 	for (i = 1; i < len0; ++i) {
-		helpers.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
+		helpers$1.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
 	}
 
 	// joining the two area curves
@@ -11311,7 +13581,7 @@ function drawArea(ctx, curve0, curve1, len0, len1) {
 
 	// building opposite area curve (reverse)
 	for (i = len1 - 1; i > 0; --i) {
-		helpers.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
+		helpers$1.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
 	}
 }
 
@@ -11360,7 +13630,7 @@ function doFill(ctx, points, mapper, view, color, loop) {
 	ctx.fill();
 }
 
-module.exports = {
+var plugin_filler = {
 	id: 'filler',
 
 	afterDatasetsUpdate: function(chart, options) {
@@ -11410,27 +13680,20 @@ module.exports = {
 		var view = el._view;
 		var points = el._children || [];
 		var mapper = meta.mapper;
-		var color = view.backgroundColor || defaults.global.defaultColor;
+		var color = view.backgroundColor || core_defaults.global.defaultColor;
 
 		if (mapper && color && points.length) {
-			helpers.canvas.clipArea(ctx, chart.chartArea);
+			helpers$1.canvas.clipArea(ctx, chart.chartArea);
 			doFill(ctx, points, mapper, view, color, el._loop);
-			helpers.canvas.unclipArea(ctx);
+			helpers$1.canvas.unclipArea(ctx);
 		}
 	}
 };
 
-},{"26":26,"41":41,"46":46}],52:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
-var layouts = require(31);
+var noop$1 = helpers$1.noop;
+var valueOrDefault$d = helpers$1.valueOrDefault;
 
-var noop = helpers.noop;
-
-defaults._set('global', {
+core_defaults._set('global', {
 	legend: {
 		display: true,
 		position: 'top',
@@ -11452,6 +13715,7 @@ defaults._set('global', {
 		},
 
 		onHover: null,
+		onLeave: null,
 
 		labels: {
 			boxWidth: 40,
@@ -11469,10 +13733,10 @@ defaults._set('global', {
 			// lineWidth :
 			generateLabels: function(chart) {
 				var data = chart.data;
-				return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
+				return helpers$1.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
 					return {
 						text: dataset.label,
-						fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
+						fillStyle: (!helpers$1.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
 						hidden: !chart.isDatasetVisible(i),
 						lineCap: dataset.borderCapStyle,
 						lineDash: dataset.borderDash,
@@ -11507,27 +13771,32 @@ defaults._set('global', {
 
 /**
  * Helper function to get the box width based on the usePointStyle option
- * @param labelopts {Object} the label options on the legend
- * @param fontSize {Number} the label font size
- * @return {Number} width of the color box area
+ * @param {object} labelopts - the label options on the legend
+ * @param {number} fontSize - the label font size
+ * @return {number} width of the color box area
  */
 function getBoxWidth(labelOpts, fontSize) {
-	return labelOpts.usePointStyle ?
-		fontSize * Math.SQRT2 :
+	return labelOpts.usePointStyle && labelOpts.boxWidth > fontSize ?
+		fontSize :
 		labelOpts.boxWidth;
 }
 
 /**
  * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
  */
-var Legend = Element.extend({
+var Legend = core_element.extend({
 
 	initialize: function(config) {
-		helpers.extend(this, config);
+		helpers$1.extend(this, config);
 
 		// Contains hit boxes for each dataset (in dataset order)
 		this.legendHitBoxes = [];
 
+		/**
+ 		 * @private
+ 		 */
+		this._hoveredItem = null;
+
 		// Are we in doughnut mode which has a different data type
 		this.doughnutMode = false;
 	},
@@ -11536,7 +13805,7 @@ var Legend = Element.extend({
 	// Any function defined here is inherited by all legend types.
 	// Any function can be extended by the legend type
 
-	beforeUpdate: noop,
+	beforeUpdate: noop$1,
 	update: function(maxWidth, maxHeight, margins) {
 		var me = this;
 
@@ -11566,11 +13835,11 @@ var Legend = Element.extend({
 
 		return me.minSize;
 	},
-	afterUpdate: noop,
+	afterUpdate: noop$1,
 
 	//
 
-	beforeSetDimensions: noop,
+	beforeSetDimensions: noop$1,
 	setDimensions: function() {
 		var me = this;
 		// Set the unconstrained dimension before label rotation
@@ -11599,15 +13868,15 @@ var Legend = Element.extend({
 			height: 0
 		};
 	},
-	afterSetDimensions: noop,
+	afterSetDimensions: noop$1,
 
 	//
 
-	beforeBuildLabels: noop,
+	beforeBuildLabels: noop$1,
 	buildLabels: function() {
 		var me = this;
 		var labelOpts = me.options.labels || {};
-		var legendItems = helpers.callback(labelOpts.generateLabels, [me.chart], me) || [];
+		var legendItems = helpers$1.callback(labelOpts.generateLabels, [me.chart], me) || [];
 
 		if (labelOpts.filter) {
 			legendItems = legendItems.filter(function(item) {
@@ -11621,11 +13890,11 @@ var Legend = Element.extend({
 
 		me.legendItems = legendItems;
 	},
-	afterBuildLabels: noop,
+	afterBuildLabels: noop$1,
 
 	//
 
-	beforeFit: noop,
+	beforeFit: noop$1,
 	fit: function() {
 		var me = this;
 		var opts = me.options;
@@ -11634,12 +13903,8 @@ var Legend = Element.extend({
 
 		var ctx = me.ctx;
 
-		var globalDefault = defaults.global;
-		var valueOrDefault = helpers.valueOrDefault;
-		var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
-		var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
-		var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
-		var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
+		var labelFont = helpers$1.options._parseFont(labelOpts);
+		var fontSize = labelFont.size;
 
 		// Reset hit boxes
 		var hitboxes = me.legendHitBoxes = [];
@@ -11657,25 +13922,25 @@ var Legend = Element.extend({
 
 		// Increase sizes here
 		if (display) {
-			ctx.font = labelFont;
+			ctx.font = labelFont.string;
 
 			if (isHorizontal) {
 				// Labels
 
 				// Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
 				var lineWidths = me.lineWidths = [0];
-				var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;
+				var totalHeight = 0;
 
 				ctx.textAlign = 'left';
 				ctx.textBaseline = 'top';
 
-				helpers.each(me.legendItems, function(legendItem, i) {
+				helpers$1.each(me.legendItems, function(legendItem, i) {
 					var boxWidth = getBoxWidth(labelOpts, fontSize);
 					var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
 
-					if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
-						totalHeight += fontSize + (labelOpts.padding);
-						lineWidths[lineWidths.length] = me.left;
+					if (i === 0 || lineWidths[lineWidths.length - 1] + width + labelOpts.padding > minSize.width) {
+						totalHeight += fontSize + labelOpts.padding;
+						lineWidths[lineWidths.length - (i > 0 ? 0 : 1)] = labelOpts.padding;
 					}
 
 					// Store the hitbox width and height here. Final position will be updated in `draw`
@@ -11699,12 +13964,12 @@ var Legend = Element.extend({
 				var currentColHeight = 0;
 				var itemHeight = fontSize + vPadding;
 
-				helpers.each(me.legendItems, function(legendItem, i) {
+				helpers$1.each(me.legendItems, function(legendItem, i) {
 					var boxWidth = getBoxWidth(labelOpts, fontSize);
 					var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;
 
 					// If too tall, go to new column
-					if (currentColHeight + itemHeight > minSize.height) {
+					if (i > 0 && currentColHeight + itemHeight > minSize.height - vPadding) {
 						totalWidth += currentColWidth + labelOpts.padding;
 						columnWidths.push(currentColWidth); // previous column width
 
@@ -11734,7 +13999,7 @@ var Legend = Element.extend({
 		me.width = minSize.width;
 		me.height = minSize.height;
 	},
-	afterFit: noop,
+	afterFit: noop$1,
 
 	// Shared Methods
 	isHorizontal: function() {
@@ -11746,19 +14011,17 @@ var Legend = Element.extend({
 		var me = this;
 		var opts = me.options;
 		var labelOpts = opts.labels;
-		var globalDefault = defaults.global;
-		var lineDefault = globalDefault.elements.line;
+		var globalDefaults = core_defaults.global;
+		var defaultColor = globalDefaults.defaultColor;
+		var lineDefault = globalDefaults.elements.line;
 		var legendWidth = me.width;
 		var lineWidths = me.lineWidths;
 
 		if (opts.display) {
 			var ctx = me.ctx;
-			var valueOrDefault = helpers.valueOrDefault;
-			var fontColor = valueOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor);
-			var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
-			var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
-			var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
-			var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
+			var fontColor = valueOrDefault$d(labelOpts.fontColor, globalDefaults.defaultFontColor);
+			var labelFont = helpers$1.options._parseFont(labelOpts);
+			var fontSize = labelFont.size;
 			var cursor;
 
 			// Canvas setup
@@ -11767,7 +14030,7 @@ var Legend = Element.extend({
 			ctx.lineWidth = 0.5;
 			ctx.strokeStyle = fontColor; // for strikethrough effect
 			ctx.fillStyle = fontColor; // render in correct colour
-			ctx.font = labelFont;
+			ctx.font = labelFont.string;
 
 			var boxWidth = getBoxWidth(labelOpts, fontSize);
 			var hitboxes = me.legendHitBoxes;
@@ -11781,32 +14044,31 @@ var Legend = Element.extend({
 				// Set the ctx for the box
 				ctx.save();
 
-				ctx.fillStyle = valueOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
-				ctx.lineCap = valueOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
-				ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
-				ctx.lineJoin = valueOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
-				ctx.lineWidth = valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
-				ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
-				var isLineWidthZero = (valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth) === 0);
+				var lineWidth = valueOrDefault$d(legendItem.lineWidth, lineDefault.borderWidth);
+				ctx.fillStyle = valueOrDefault$d(legendItem.fillStyle, defaultColor);
+				ctx.lineCap = valueOrDefault$d(legendItem.lineCap, lineDefault.borderCapStyle);
+				ctx.lineDashOffset = valueOrDefault$d(legendItem.lineDashOffset, lineDefault.borderDashOffset);
+				ctx.lineJoin = valueOrDefault$d(legendItem.lineJoin, lineDefault.borderJoinStyle);
+				ctx.lineWidth = lineWidth;
+				ctx.strokeStyle = valueOrDefault$d(legendItem.strokeStyle, defaultColor);
 
 				if (ctx.setLineDash) {
 					// IE 9 and 10 do not support line dash
-					ctx.setLineDash(valueOrDefault(legendItem.lineDash, lineDefault.borderDash));
+					ctx.setLineDash(valueOrDefault$d(legendItem.lineDash, lineDefault.borderDash));
 				}
 
 				if (opts.labels && opts.labels.usePointStyle) {
 					// Recalculate x and y for drawPoint() because its expecting
 					// x and y to be center of figure (instead of top left)
-					var radius = fontSize * Math.SQRT2 / 2;
-					var offSet = radius / Math.SQRT2;
-					var centerX = x + offSet;
-					var centerY = y + offSet;
+					var radius = boxWidth * Math.SQRT2 / 2;
+					var centerX = x + boxWidth / 2;
+					var centerY = y + fontSize / 2;
 
 					// Draw pointStyle as legend symbol
-					helpers.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
+					helpers$1.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
 				} else {
 					// Draw box as legend symbol
-					if (!isLineWidthZero) {
+					if (lineWidth !== 0) {
 						ctx.strokeRect(x, y, boxWidth, fontSize);
 					}
 					ctx.fillRect(x, y, boxWidth, fontSize);
@@ -11835,7 +14097,7 @@ var Legend = Element.extend({
 			var isHorizontal = me.isHorizontal();
 			if (isHorizontal) {
 				cursor = {
-					x: me.left + ((legendWidth - lineWidths[0]) / 2),
+					x: me.left + ((legendWidth - lineWidths[0]) / 2) + labelOpts.padding,
 					y: me.top + labelOpts.padding,
 					line: 0
 				};
@@ -11848,19 +14110,22 @@ var Legend = Element.extend({
 			}
 
 			var itemHeight = fontSize + labelOpts.padding;
-			helpers.each(me.legendItems, function(legendItem, i) {
+			helpers$1.each(me.legendItems, function(legendItem, i) {
 				var textWidth = ctx.measureText(legendItem.text).width;
 				var width = boxWidth + (fontSize / 2) + textWidth;
 				var x = cursor.x;
 				var y = cursor.y;
 
+				// Use (me.left + me.minSize.width) and (me.top + me.minSize.height)
+				// instead of me.right and me.bottom because me.width and me.height
+				// may have been changed since me.minSize was calculated
 				if (isHorizontal) {
-					if (x + width >= legendWidth) {
+					if (i > 0 && x + width + labelOpts.padding > me.left + me.minSize.width) {
 						y = cursor.y += itemHeight;
 						cursor.line++;
-						x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
+						x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2) + labelOpts.padding;
 					}
-				} else if (y + itemHeight > me.bottom) {
+				} else if (i > 0 && y + itemHeight > me.top + me.minSize.height) {
 					x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
 					y = cursor.y = me.top + labelOpts.padding;
 					cursor.line++;
@@ -11875,7 +14140,7 @@ var Legend = Element.extend({
 				fillText(x, y, legendItem, textWidth);
 
 				if (isHorizontal) {
-					cursor.x += width + (labelOpts.padding);
+					cursor.x += width + labelOpts.padding;
 				} else {
 					cursor.y += itemHeight;
 				}
@@ -11885,19 +14150,41 @@ var Legend = Element.extend({
 	},
 
 	/**
+	 * @private
+	 */
+	_getLegendItemAt: function(x, y) {
+		var me = this;
+		var i, hitBox, lh;
+
+		if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
+			// See if we are touching one of the dataset boxes
+			lh = me.legendHitBoxes;
+			for (i = 0; i < lh.length; ++i) {
+				hitBox = lh[i];
+
+				if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
+					// Touching an element
+					return me.legendItems[i];
+				}
+			}
+		}
+
+		return null;
+	},
+
+	/**
 	 * Handle an event
 	 * @private
 	 * @param {IEvent} event - The event to handle
-	 * @return {Boolean} true if a change occured
 	 */
 	handleEvent: function(e) {
 		var me = this;
 		var opts = me.options;
 		var type = e.type === 'mouseup' ? 'click' : e.type;
-		var changed = false;
+		var hoveredItem;
 
 		if (type === 'mousemove') {
-			if (!opts.onHover) {
+			if (!opts.onHover && !opts.onLeave) {
 				return;
 			}
 		} else if (type === 'click') {
@@ -11909,33 +14196,26 @@ var Legend = Element.extend({
 		}
 
 		// Chart event already has relative position in it
-		var x = e.x;
-		var y = e.y;
+		hoveredItem = me._getLegendItemAt(e.x, e.y);
 
-		if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
-			// See if we are touching one of the dataset boxes
-			var lh = me.legendHitBoxes;
-			for (var i = 0; i < lh.length; ++i) {
-				var hitBox = lh[i];
-
-				if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
-					// Touching an element
-					if (type === 'click') {
-						// use e.native for backwards compatibility
-						opts.onClick.call(me, e.native, me.legendItems[i]);
-						changed = true;
-						break;
-					} else if (type === 'mousemove') {
-						// use e.native for backwards compatibility
-						opts.onHover.call(me, e.native, me.legendItems[i]);
-						changed = true;
-						break;
-					}
+		if (type === 'click') {
+			if (hoveredItem && opts.onClick) {
+				// use e.native for backwards compatibility
+				opts.onClick.call(me, e.native, hoveredItem);
+			}
+		} else {
+			if (opts.onLeave && hoveredItem !== me._hoveredItem) {
+				if (me._hoveredItem) {
+					opts.onLeave.call(me, e.native, me._hoveredItem);
 				}
+				me._hoveredItem = hoveredItem;
 			}
-		}
 
-		return changed;
+			if (opts.onHover && hoveredItem) {
+				// use e.native for backwards compatibility
+				opts.onHover.call(me, e.native, hoveredItem);
+			}
+		}
 	}
 });
 
@@ -11946,12 +14226,12 @@ function createNewLegendAndAttach(chart, legendOpts) {
 		chart: chart
 	});
 
-	layouts.configure(chart, legend, legendOpts);
-	layouts.addBox(chart, legend);
+	core_layouts.configure(chart, legend, legendOpts);
+	core_layouts.addBox(chart, legend);
 	chart.legend = legend;
 }
 
-module.exports = {
+var plugin_legend = {
 	id: 'legend',
 
 	/**
@@ -11976,16 +14256,16 @@ module.exports = {
 		var legend = chart.legend;
 
 		if (legendOpts) {
-			helpers.mergeIf(legendOpts, defaults.global.legend);
+			helpers$1.mergeIf(legendOpts, core_defaults.global.legend);
 
 			if (legend) {
-				layouts.configure(chart, legend, legendOpts);
+				core_layouts.configure(chart, legend, legendOpts);
 				legend.options = legendOpts;
 			} else {
 				createNewLegendAndAttach(chart, legendOpts);
 			}
 		} else if (legend) {
-			layouts.removeBox(chart, legend);
+			core_layouts.removeBox(chart, legend);
 			delete chart.legend;
 		}
 	},
@@ -11998,22 +14278,13 @@ module.exports = {
 	}
 };
 
-},{"26":26,"27":27,"31":31,"46":46}],53:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var Element = require(27);
-var helpers = require(46);
-var layouts = require(31);
-
-var noop = helpers.noop;
+var noop$2 = helpers$1.noop;
 
-defaults._set('global', {
+core_defaults._set('global', {
 	title: {
 		display: false,
 		fontStyle: 'bold',
 		fullWidth: true,
-		lineHeight: 1.2,
 		padding: 10,
 		position: 'top',
 		text: '',
@@ -12024,10 +14295,10 @@ defaults._set('global', {
 /**
  * IMPORTANT: this class is exposed publicly as Chart.Legend, backward compatibility required!
  */
-var Title = Element.extend({
+var Title = core_element.extend({
 	initialize: function(config) {
 		var me = this;
-		helpers.extend(me, config);
+		helpers$1.extend(me, config);
 
 		// Contains hit boxes for each dataset (in dataset order)
 		me.legendHitBoxes = [];
@@ -12035,7 +14306,7 @@ var Title = Element.extend({
 
 	// These methods are ordered by lifecycle. Utilities then follow.
 
-	beforeUpdate: noop,
+	beforeUpdate: noop$2,
 	update: function(maxWidth, maxHeight, margins) {
 		var me = this;
 
@@ -12066,11 +14337,11 @@ var Title = Element.extend({
 		return me.minSize;
 
 	},
-	afterUpdate: noop,
+	afterUpdate: noop$2,
 
 	//
 
-	beforeSetDimensions: noop,
+	beforeSetDimensions: noop$2,
 	setDimensions: function() {
 		var me = this;
 		// Set the unconstrained dimension before label rotation
@@ -12099,27 +14370,25 @@ var Title = Element.extend({
 			height: 0
 		};
 	},
-	afterSetDimensions: noop,
+	afterSetDimensions: noop$2,
 
 	//
 
-	beforeBuildLabels: noop,
-	buildLabels: noop,
-	afterBuildLabels: noop,
+	beforeBuildLabels: noop$2,
+	buildLabels: noop$2,
+	afterBuildLabels: noop$2,
 
 	//
 
-	beforeFit: noop,
+	beforeFit: noop$2,
 	fit: function() {
 		var me = this;
-		var valueOrDefault = helpers.valueOrDefault;
 		var opts = me.options;
 		var display = opts.display;
-		var fontSize = valueOrDefault(opts.fontSize, defaults.global.defaultFontSize);
 		var minSize = me.minSize;
-		var lineCount = helpers.isArray(opts.text) ? opts.text.length : 1;
-		var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
-		var textSize = display ? (lineCount * lineHeight) + (opts.padding * 2) : 0;
+		var lineCount = helpers$1.isArray(opts.text) ? opts.text.length : 1;
+		var fontOpts = helpers$1.options._parseFont(opts);
+		var textSize = display ? (lineCount * fontOpts.lineHeight) + (opts.padding * 2) : 0;
 
 		if (me.isHorizontal()) {
 			minSize.width = me.maxWidth; // fill all the width
@@ -12133,7 +14402,7 @@ var Title = Element.extend({
 		me.height = minSize.height;
 
 	},
-	afterFit: noop,
+	afterFit: noop$2,
 
 	// Shared Methods
 	isHorizontal: function() {
@@ -12145,16 +14414,11 @@ var Title = Element.extend({
 	draw: function() {
 		var me = this;
 		var ctx = me.ctx;
-		var valueOrDefault = helpers.valueOrDefault;
 		var opts = me.options;
-		var globalDefaults = defaults.global;
 
 		if (opts.display) {
-			var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize);
-			var fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle);
-			var fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily);
-			var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily);
-			var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
+			var fontOpts = helpers$1.options._parseFont(opts);
+			var lineHeight = fontOpts.lineHeight;
 			var offset = lineHeight / 2 + opts.padding;
 			var rotation = 0;
 			var top = me.top;
@@ -12163,8 +14427,8 @@ var Title = Element.extend({
 			var right = me.right;
 			var maxWidth, titleX, titleY;
 
-			ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
-			ctx.font = titleFont;
+			ctx.fillStyle = helpers$1.valueOrDefault(opts.fontColor, core_defaults.global.defaultFontColor); // render in correct colour
+			ctx.font = fontOpts.string;
 
 			// Horizontal
 			if (me.isHorizontal()) {
@@ -12185,7 +14449,7 @@ var Title = Element.extend({
 			ctx.textBaseline = 'middle';
 
 			var text = opts.text;
-			if (helpers.isArray(text)) {
+			if (helpers$1.isArray(text)) {
 				var y = 0;
 				for (var i = 0; i < text.length; ++i) {
 					ctx.fillText(text[i], 0, y, maxWidth);
@@ -12207,12 +14471,12 @@ function createNewTitleBlockAndAttach(chart, titleOpts) {
 		chart: chart
 	});
 
-	layouts.configure(chart, title, titleOpts);
-	layouts.addBox(chart, title);
+	core_layouts.configure(chart, title, titleOpts);
+	core_layouts.addBox(chart, title);
 	chart.titleBlock = title;
 }
 
-module.exports = {
+var plugin_title = {
 	id: 'title',
 
 	/**
@@ -12237,2220 +14501,180 @@ module.exports = {
 		var titleBlock = chart.titleBlock;
 
 		if (titleOpts) {
-			helpers.mergeIf(titleOpts, defaults.global.title);
+			helpers$1.mergeIf(titleOpts, core_defaults.global.title);
 
 			if (titleBlock) {
-				layouts.configure(chart, titleBlock, titleOpts);
+				core_layouts.configure(chart, titleBlock, titleOpts);
 				titleBlock.options = titleOpts;
 			} else {
 				createNewTitleBlockAndAttach(chart, titleOpts);
 			}
 		} else if (titleBlock) {
-			layouts.removeBox(chart, titleBlock);
+			core_layouts.removeBox(chart, titleBlock);
 			delete chart.titleBlock;
 		}
 	}
 };
 
-},{"26":26,"27":27,"31":31,"46":46}],54:[function(require,module,exports){
-'use strict';
-
-var Scale = require(33);
-var scaleService = require(34);
-
-module.exports = function() {
-
-	// Default config for a category scale
-	var defaultConfig = {
-		position: 'bottom'
-	};
-
-	var DatasetScale = Scale.extend({
-		/**
-		* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
-		* else fall back to data.labels
-		* @private
-		*/
-		getLabels: function() {
-			var data = this.chart.data;
-			return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
-		},
-
-		determineDataLimits: function() {
-			var me = this;
-			var labels = me.getLabels();
-			me.minIndex = 0;
-			me.maxIndex = labels.length - 1;
-			var findIndex;
-
-			if (me.options.ticks.min !== undefined) {
-				// user specified min value
-				findIndex = labels.indexOf(me.options.ticks.min);
-				me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
-			}
-
-			if (me.options.ticks.max !== undefined) {
-				// user specified max value
-				findIndex = labels.indexOf(me.options.ticks.max);
-				me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
-			}
-
-			me.min = labels[me.minIndex];
-			me.max = labels[me.maxIndex];
-		},
-
-		buildTicks: function() {
-			var me = this;
-			var labels = me.getLabels();
-			// If we are viewing some subset of labels, slice the original array
-			me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
-		},
-
-		getLabelForIndex: function(index, datasetIndex) {
-			var me = this;
-			var data = me.chart.data;
-			var isHorizontal = me.isHorizontal();
-
-			if (data.yLabels && !isHorizontal) {
-				return me.getRightValue(data.datasets[datasetIndex].data[index]);
-			}
-			return me.ticks[index - me.minIndex];
-		},
-
-		// Used to get data value locations.  Value can either be an index or a numerical value
-		getPixelForValue: function(value, index) {
-			var me = this;
-			var offset = me.options.offset;
-			// 1 is added because we need the length but we have the indexes
-			var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);
-
-			// If value is a data object, then index is the index in the data array,
-			// not the index of the scale. We need to change that.
-			var valueCategory;
-			if (value !== undefined && value !== null) {
-				valueCategory = me.isHorizontal() ? value.x : value.y;
-			}
-			if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
-				var labels = me.getLabels();
-				value = valueCategory || value;
-				var idx = labels.indexOf(value);
-				index = idx !== -1 ? idx : index;
-			}
-
-			if (me.isHorizontal()) {
-				var valueWidth = me.width / offsetAmt;
-				var widthOffset = (valueWidth * (index - me.minIndex));
-
-				if (offset) {
-					widthOffset += (valueWidth / 2);
-				}
-
-				return me.left + Math.round(widthOffset);
-			}
-			var valueHeight = me.height / offsetAmt;
-			var heightOffset = (valueHeight * (index - me.minIndex));
-
-			if (offset) {
-				heightOffset += (valueHeight / 2);
-			}
-
-			return me.top + Math.round(heightOffset);
-		},
-		getPixelForTick: function(index) {
-			return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
-		},
-		getValueForPixel: function(pixel) {
-			var me = this;
-			var offset = me.options.offset;
-			var value;
-			var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
-			var horz = me.isHorizontal();
-			var valueDimension = (horz ? me.width : me.height) / offsetAmt;
-
-			pixel -= horz ? me.left : me.top;
-
-			if (offset) {
-				pixel -= (valueDimension / 2);
-			}
-
-			if (pixel <= 0) {
-				value = 0;
-			} else {
-				value = Math.round(pixel / valueDimension);
-			}
-
-			return value + me.minIndex;
-		},
-		getBasePixel: function() {
-			return this.bottom;
-		}
-	});
-
-	scaleService.registerScaleType('category', DatasetScale, defaultConfig);
-};
-
-},{"33":33,"34":34}],55:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var helpers = require(46);
-var scaleService = require(34);
-var Ticks = require(35);
-
-module.exports = function(Chart) {
-
-	var defaultConfig = {
-		position: 'left',
-		ticks: {
-			callback: Ticks.formatters.linear
-		}
-	};
-
-	var LinearScale = Chart.LinearScaleBase.extend({
-
-		determineDataLimits: function() {
-			var me = this;
-			var opts = me.options;
-			var chart = me.chart;
-			var data = chart.data;
-			var datasets = data.datasets;
-			var isHorizontal = me.isHorizontal();
-			var DEFAULT_MIN = 0;
-			var DEFAULT_MAX = 1;
-
-			function IDMatches(meta) {
-				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
-			}
-
-			// First Calculate the range
-			me.min = null;
-			me.max = null;
-
-			var hasStacks = opts.stacked;
-			if (hasStacks === undefined) {
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					if (hasStacks) {
-						return;
-					}
-
-					var meta = chart.getDatasetMeta(datasetIndex);
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
-						meta.stack !== undefined) {
-						hasStacks = true;
-					}
-				});
-			}
-
-			if (opts.stacked || hasStacks) {
-				var valuesPerStack = {};
-
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					var meta = chart.getDatasetMeta(datasetIndex);
-					var key = [
-						meta.type,
-						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
-						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
-						meta.stack
-					].join('.');
-
-					if (valuesPerStack[key] === undefined) {
-						valuesPerStack[key] = {
-							positiveValues: [],
-							negativeValues: []
-						};
-					}
-
-					// Store these per type
-					var positiveValues = valuesPerStack[key].positiveValues;
-					var negativeValues = valuesPerStack[key].negativeValues;
-
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
-						helpers.each(dataset.data, function(rawValue, index) {
-							var value = +me.getRightValue(rawValue);
-							if (isNaN(value) || meta.data[index].hidden) {
-								return;
-							}
-
-							positiveValues[index] = positiveValues[index] || 0;
-							negativeValues[index] = negativeValues[index] || 0;
-
-							if (opts.relativePoints) {
-								positiveValues[index] = 100;
-							} else if (value < 0) {
-								negativeValues[index] += value;
-							} else {
-								positiveValues[index] += value;
-							}
-						});
-					}
-				});
-
-				helpers.each(valuesPerStack, function(valuesForType) {
-					var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
-					var minVal = helpers.min(values);
-					var maxVal = helpers.max(values);
-					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
-					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
-				});
-
-			} else {
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					var meta = chart.getDatasetMeta(datasetIndex);
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
-						helpers.each(dataset.data, function(rawValue, index) {
-							var value = +me.getRightValue(rawValue);
-							if (isNaN(value) || meta.data[index].hidden) {
-								return;
-							}
-
-							if (me.min === null) {
-								me.min = value;
-							} else if (value < me.min) {
-								me.min = value;
-							}
-
-							if (me.max === null) {
-								me.max = value;
-							} else if (value > me.max) {
-								me.max = value;
-							}
-						});
-					}
-				});
-			}
-
-			me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
-			me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;
-
-			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
-			this.handleTickRangeOptions();
-		},
-		getTickLimit: function() {
-			var maxTicks;
-			var me = this;
-			var tickOpts = me.options.ticks;
-
-			if (me.isHorizontal()) {
-				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
-			} else {
-				// The factor of 2 used to scale the font size has been experimentally determined.
-				var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, defaults.global.defaultFontSize);
-				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
-			}
-
-			return maxTicks;
-		},
-		// Called after the ticks are built. We need
-		handleDirectionalChanges: function() {
-			if (!this.isHorizontal()) {
-				// We are in a vertical orientation. The top value is the highest. So reverse the array
-				this.ticks.reverse();
-			}
-		},
-		getLabelForIndex: function(index, datasetIndex) {
-			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
-		},
-		// Utils
-		getPixelForValue: function(value) {
-			// This must be called after fit has been run so that
-			// this.left, this.top, this.right, and this.bottom have been defined
-			var me = this;
-			var start = me.start;
-
-			var rightValue = +me.getRightValue(value);
-			var pixel;
-			var range = me.end - start;
-
-			if (me.isHorizontal()) {
-				pixel = me.left + (me.width / range * (rightValue - start));
-			} else {
-				pixel = me.bottom - (me.height / range * (rightValue - start));
-			}
-			return pixel;
-		},
-		getValueForPixel: function(pixel) {
-			var me = this;
-			var isHorizontal = me.isHorizontal();
-			var innerDimension = isHorizontal ? me.width : me.height;
-			var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
-			return me.start + ((me.end - me.start) * offset);
-		},
-		getPixelForTick: function(index) {
-			return this.getPixelForValue(this.ticksAsNumbers[index]);
-		}
-	});
-
-	scaleService.registerScaleType('linear', LinearScale, defaultConfig);
-};
-
-},{"26":26,"34":34,"35":35,"46":46}],56:[function(require,module,exports){
-'use strict';
-
-var helpers = require(46);
-var Scale = require(33);
+var plugins = {};
+var filler = plugin_filler;
+var legend = plugin_legend;
+var title = plugin_title;
+plugins.filler = filler;
+plugins.legend = legend;
+plugins.title = title;
 
 /**
- * Generate a set of linear ticks
- * @param generationOptions the options used to generate the ticks
- * @param dataRange the range of the data
- * @returns {Array<Number>} array of tick values
+ * @namespace Chart
  */
-function generateTicks(generationOptions, dataRange) {
-	var ticks = [];
-	// To get a "nice" value for the tick spacing, we will use the appropriately named
-	// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
-	// for details.
 
-	var factor;
-	var precision;
-	var spacing;
 
-	if (generationOptions.stepSize && generationOptions.stepSize > 0) {
-		spacing = generationOptions.stepSize;
-	} else {
-		var niceRange = helpers.niceNum(dataRange.max - dataRange.min, false);
-		spacing = helpers.niceNum(niceRange / (generationOptions.maxTicks - 1), true);
-
-		precision = generationOptions.precision;
-		if (precision !== undefined) {
-			// If the user specified a precision, round to that number of decimal places
-			factor = Math.pow(10, precision);
-			spacing = Math.ceil(spacing * factor) / factor;
-		}
-	}
-	var niceMin = Math.floor(dataRange.min / spacing) * spacing;
-	var niceMax = Math.ceil(dataRange.max / spacing) * spacing;
+core_controller.helpers = helpers$1;
 
-	// If min, max and stepSize is set and they make an evenly spaced scale use it.
-	if (!helpers.isNullOrUndef(generationOptions.min) && !helpers.isNullOrUndef(generationOptions.max) && generationOptions.stepSize) {
-		// If very close to our whole number, use it.
-		if (helpers.almostWhole((generationOptions.max - generationOptions.min) / generationOptions.stepSize, spacing / 1000)) {
-			niceMin = generationOptions.min;
-			niceMax = generationOptions.max;
-		}
-	}
-
-	var numSpaces = (niceMax - niceMin) / spacing;
-	// If very close to our rounded value, use it.
-	if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
-		numSpaces = Math.round(numSpaces);
-	} else {
-		numSpaces = Math.ceil(numSpaces);
-	}
-
-	precision = 1;
-	if (spacing < 1) {
-		precision = Math.pow(10, 1 - Math.floor(helpers.log10(spacing)));
-		niceMin = Math.round(niceMin * precision) / precision;
-		niceMax = Math.round(niceMax * precision) / precision;
-	}
-	ticks.push(generationOptions.min !== undefined ? generationOptions.min : niceMin);
-	for (var j = 1; j < numSpaces; ++j) {
-		ticks.push(Math.round((niceMin + j * spacing) * precision) / precision);
-	}
-	ticks.push(generationOptions.max !== undefined ? generationOptions.max : niceMax);
-
-	return ticks;
-}
-
-module.exports = function(Chart) {
-
-	var noop = helpers.noop;
-
-	Chart.LinearScaleBase = Scale.extend({
-		getRightValue: function(value) {
-			if (typeof value === 'string') {
-				return +value;
-			}
-			return Scale.prototype.getRightValue.call(this, value);
-		},
-
-		handleTickRangeOptions: function() {
-			var me = this;
-			var opts = me.options;
-			var tickOpts = opts.ticks;
-
-			// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
-			// do nothing since that would make the chart weird. If the user really wants a weird chart
-			// axis, they can manually override it
-			if (tickOpts.beginAtZero) {
-				var minSign = helpers.sign(me.min);
-				var maxSign = helpers.sign(me.max);
-
-				if (minSign < 0 && maxSign < 0) {
-					// move the top up to 0
-					me.max = 0;
-				} else if (minSign > 0 && maxSign > 0) {
-					// move the bottom down to 0
-					me.min = 0;
-				}
-			}
-
-			var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
-			var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;
-
-			if (tickOpts.min !== undefined) {
-				me.min = tickOpts.min;
-			} else if (tickOpts.suggestedMin !== undefined) {
-				if (me.min === null) {
-					me.min = tickOpts.suggestedMin;
-				} else {
-					me.min = Math.min(me.min, tickOpts.suggestedMin);
-				}
-			}
-
-			if (tickOpts.max !== undefined) {
-				me.max = tickOpts.max;
-			} else if (tickOpts.suggestedMax !== undefined) {
-				if (me.max === null) {
-					me.max = tickOpts.suggestedMax;
-				} else {
-					me.max = Math.max(me.max, tickOpts.suggestedMax);
-				}
-			}
-
-			if (setMin !== setMax) {
-				// We set the min or the max but not both.
-				// So ensure that our range is good
-				// Inverted or 0 length range can happen when
-				// ticks.min is set, and no datasets are visible
-				if (me.min >= me.max) {
-					if (setMin) {
-						me.max = me.min + 1;
-					} else {
-						me.min = me.max - 1;
-					}
-				}
-			}
-
-			if (me.min === me.max) {
-				me.max++;
-
-				if (!tickOpts.beginAtZero) {
-					me.min--;
-				}
-			}
-		},
-		getTickLimit: noop,
-		handleDirectionalChanges: noop,
-
-		buildTicks: function() {
-			var me = this;
-			var opts = me.options;
-			var tickOpts = opts.ticks;
-
-			// Figure out what the max number of ticks we can support it is based on the size of
-			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
-			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
-			// the graph. Make sure we always have at least 2 ticks
-			var maxTicks = me.getTickLimit();
-			maxTicks = Math.max(2, maxTicks);
-
-			var numericGeneratorOptions = {
-				maxTicks: maxTicks,
-				min: tickOpts.min,
-				max: tickOpts.max,
-				precision: tickOpts.precision,
-				stepSize: helpers.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
-			};
-			var ticks = me.ticks = generateTicks(numericGeneratorOptions, me);
-
-			me.handleDirectionalChanges();
-
-			// At this point, we need to update our max and min given the tick values since we have expanded the
-			// range of the scale
-			me.max = helpers.max(ticks);
-			me.min = helpers.min(ticks);
-
-			if (tickOpts.reverse) {
-				ticks.reverse();
-
-				me.start = me.max;
-				me.end = me.min;
-			} else {
-				me.start = me.min;
-				me.end = me.max;
-			}
-		},
-		convertTicksToLabels: function() {
-			var me = this;
-			me.ticksAsNumbers = me.ticks.slice();
-			me.zeroLineIndex = me.ticks.indexOf(0);
-
-			Scale.prototype.convertTicksToLabels.call(me);
-		}
-	});
-};
-
-},{"33":33,"46":46}],57:[function(require,module,exports){
-'use strict';
-
-var helpers = require(46);
-var Scale = require(33);
-var scaleService = require(34);
-var Ticks = require(35);
-
-/**
- * Generate a set of logarithmic ticks
- * @param generationOptions the options used to generate the ticks
- * @param dataRange the range of the data
- * @returns {Array<Number>} array of tick values
- */
-function generateTicks(generationOptions, dataRange) {
-	var ticks = [];
-	var valueOrDefault = helpers.valueOrDefault;
+// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
+core_helpers(core_controller);
+
+core_controller._adapters = core_adapters;
+core_controller.Animation = core_animation;
+core_controller.animationService = core_animations;
+core_controller.controllers = controllers;
+core_controller.DatasetController = core_datasetController;
+core_controller.defaults = core_defaults;
+core_controller.Element = core_element;
+core_controller.elements = elements;
+core_controller.Interaction = core_interaction;
+core_controller.layouts = core_layouts;
+core_controller.platform = platform;
+core_controller.plugins = core_plugins;
+core_controller.Scale = core_scale;
+core_controller.scaleService = core_scaleService;
+core_controller.Ticks = core_ticks;
+core_controller.Tooltip = core_tooltip;
+
+// Register built-in scales
+
+core_controller.helpers.each(scales, function(scale, type) {
+	core_controller.scaleService.registerScaleType(type, scale, scale._defaults);
+});
 
-	// Figure out what the max number of ticks we can support it is based on the size of
-	// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
-	// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
-	// the graph
-	var tickVal = valueOrDefault(generationOptions.min, Math.pow(10, Math.floor(helpers.log10(dataRange.min))));
+// Load to register built-in adapters (as side effects)
 
-	var endExp = Math.floor(helpers.log10(dataRange.max));
-	var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
-	var exp, significand;
 
-	if (tickVal === 0) {
-		exp = Math.floor(helpers.log10(dataRange.minNotZero));
-		significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));
+// Loading built-in plugins
 
-		ticks.push(tickVal);
-		tickVal = significand * Math.pow(10, exp);
-	} else {
-		exp = Math.floor(helpers.log10(tickVal));
-		significand = Math.floor(tickVal / Math.pow(10, exp));
+for (var k in plugins) {
+	if (plugins.hasOwnProperty(k)) {
+		core_controller.plugins.register(plugins[k]);
 	}
-	var precision = exp < 0 ? Math.pow(10, Math.abs(exp)) : 1;
-
-	do {
-		ticks.push(tickVal);
-
-		++significand;
-		if (significand === 10) {
-			significand = 1;
-			++exp;
-			precision = exp >= 0 ? 1 : precision;
-		}
-
-		tickVal = Math.round(significand * Math.pow(10, exp) * precision) / precision;
-	} while (exp < endExp || (exp === endExp && significand < endSignificand));
-
-	var lastTick = valueOrDefault(generationOptions.max, tickVal);
-	ticks.push(lastTick);
-
-	return ticks;
 }
 
+core_controller.platform.initialize();
 
-module.exports = function(Chart) {
-
-	var defaultConfig = {
-		position: 'left',
-
-		// label settings
-		ticks: {
-			callback: Ticks.formatters.logarithmic
-		}
-	};
-
-	var LogarithmicScale = Scale.extend({
-		determineDataLimits: function() {
-			var me = this;
-			var opts = me.options;
-			var chart = me.chart;
-			var data = chart.data;
-			var datasets = data.datasets;
-			var isHorizontal = me.isHorizontal();
-			function IDMatches(meta) {
-				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
-			}
-
-			// Calculate Range
-			me.min = null;
-			me.max = null;
-			me.minNotZero = null;
-
-			var hasStacks = opts.stacked;
-			if (hasStacks === undefined) {
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					if (hasStacks) {
-						return;
-					}
-
-					var meta = chart.getDatasetMeta(datasetIndex);
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
-						meta.stack !== undefined) {
-						hasStacks = true;
-					}
-				});
-			}
-
-			if (opts.stacked || hasStacks) {
-				var valuesPerStack = {};
-
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					var meta = chart.getDatasetMeta(datasetIndex);
-					var key = [
-						meta.type,
-						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
-						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
-						meta.stack
-					].join('.');
-
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
-						if (valuesPerStack[key] === undefined) {
-							valuesPerStack[key] = [];
-						}
-
-						helpers.each(dataset.data, function(rawValue, index) {
-							var values = valuesPerStack[key];
-							var value = +me.getRightValue(rawValue);
-							// invalid, hidden and negative values are ignored
-							if (isNaN(value) || meta.data[index].hidden || value < 0) {
-								return;
-							}
-							values[index] = values[index] || 0;
-							values[index] += value;
-						});
-					}
-				});
-
-				helpers.each(valuesPerStack, function(valuesForType) {
-					if (valuesForType.length > 0) {
-						var minVal = helpers.min(valuesForType);
-						var maxVal = helpers.max(valuesForType);
-						me.min = me.min === null ? minVal : Math.min(me.min, minVal);
-						me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
-					}
-				});
-
-			} else {
-				helpers.each(datasets, function(dataset, datasetIndex) {
-					var meta = chart.getDatasetMeta(datasetIndex);
-					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
-						helpers.each(dataset.data, function(rawValue, index) {
-							var value = +me.getRightValue(rawValue);
-							// invalid, hidden and negative values are ignored
-							if (isNaN(value) || meta.data[index].hidden || value < 0) {
-								return;
-							}
-
-							if (me.min === null) {
-								me.min = value;
-							} else if (value < me.min) {
-								me.min = value;
-							}
-
-							if (me.max === null) {
-								me.max = value;
-							} else if (value > me.max) {
-								me.max = value;
-							}
-
-							if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
-								me.minNotZero = value;
-							}
-						});
-					}
-				});
-			}
-
-			// Common base implementation to handle ticks.min, ticks.max
-			this.handleTickRangeOptions();
-		},
-		handleTickRangeOptions: function() {
-			var me = this;
-			var opts = me.options;
-			var tickOpts = opts.ticks;
-			var valueOrDefault = helpers.valueOrDefault;
-			var DEFAULT_MIN = 1;
-			var DEFAULT_MAX = 10;
-
-			me.min = valueOrDefault(tickOpts.min, me.min);
-			me.max = valueOrDefault(tickOpts.max, me.max);
-
-			if (me.min === me.max) {
-				if (me.min !== 0 && me.min !== null) {
-					me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
-					me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
-				} else {
-					me.min = DEFAULT_MIN;
-					me.max = DEFAULT_MAX;
-				}
-			}
-			if (me.min === null) {
-				me.min = Math.pow(10, Math.floor(helpers.log10(me.max)) - 1);
-			}
-			if (me.max === null) {
-				me.max = me.min !== 0
-					? Math.pow(10, Math.floor(helpers.log10(me.min)) + 1)
-					: DEFAULT_MAX;
-			}
-			if (me.minNotZero === null) {
-				if (me.min > 0) {
-					me.minNotZero = me.min;
-				} else if (me.max < 1) {
-					me.minNotZero = Math.pow(10, Math.floor(helpers.log10(me.max)));
-				} else {
-					me.minNotZero = DEFAULT_MIN;
-				}
-			}
-		},
-		buildTicks: function() {
-			var me = this;
-			var opts = me.options;
-			var tickOpts = opts.ticks;
-			var reverse = !me.isHorizontal();
-
-			var generationOptions = {
-				min: tickOpts.min,
-				max: tickOpts.max
-			};
-			var ticks = me.ticks = generateTicks(generationOptions, me);
-
-			// At this point, we need to update our max and min given the tick values since we have expanded the
-			// range of the scale
-			me.max = helpers.max(ticks);
-			me.min = helpers.min(ticks);
-
-			if (tickOpts.reverse) {
-				reverse = !reverse;
-				me.start = me.max;
-				me.end = me.min;
-			} else {
-				me.start = me.min;
-				me.end = me.max;
-			}
-			if (reverse) {
-				ticks.reverse();
-			}
-		},
-		convertTicksToLabels: function() {
-			this.tickValues = this.ticks.slice();
-
-			Scale.prototype.convertTicksToLabels.call(this);
-		},
-		// Get the correct tooltip label
-		getLabelForIndex: function(index, datasetIndex) {
-			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
-		},
-		getPixelForTick: function(index) {
-			return this.getPixelForValue(this.tickValues[index]);
-		},
-		/**
-		 * Returns the value of the first tick.
-		 * @param {Number} value - The minimum not zero value.
-		 * @return {Number} The first tick value.
-		 * @private
-		 */
-		_getFirstTickValue: function(value) {
-			var exp = Math.floor(helpers.log10(value));
-			var significand = Math.floor(value / Math.pow(10, exp));
-
-			return significand * Math.pow(10, exp);
-		},
-		getPixelForValue: function(value) {
-			var me = this;
-			var reverse = me.options.ticks.reverse;
-			var log10 = helpers.log10;
-			var firstTickValue = me._getFirstTickValue(me.minNotZero);
-			var offset = 0;
-			var innerDimension, pixel, start, end, sign;
-
-			value = +me.getRightValue(value);
-			if (reverse) {
-				start = me.end;
-				end = me.start;
-				sign = -1;
-			} else {
-				start = me.start;
-				end = me.end;
-				sign = 1;
-			}
-			if (me.isHorizontal()) {
-				innerDimension = me.width;
-				pixel = reverse ? me.right : me.left;
-			} else {
-				innerDimension = me.height;
-				sign *= -1; // invert, since the upper-left corner of the canvas is at pixel (0, 0)
-				pixel = reverse ? me.top : me.bottom;
-			}
-			if (value !== start) {
-				if (start === 0) { // include zero tick
-					offset = helpers.getValueOrDefault(
-						me.options.ticks.fontSize,
-						Chart.defaults.global.defaultFontSize
-					);
-					innerDimension -= offset;
-					start = firstTickValue;
-				}
-				if (value !== 0) {
-					offset += innerDimension / (log10(end) - log10(start)) * (log10(value) - log10(start));
-				}
-				pixel += sign * offset;
-			}
-			return pixel;
-		},
-		getValueForPixel: function(pixel) {
-			var me = this;
-			var reverse = me.options.ticks.reverse;
-			var log10 = helpers.log10;
-			var firstTickValue = me._getFirstTickValue(me.minNotZero);
-			var innerDimension, start, end, value;
-
-			if (reverse) {
-				start = me.end;
-				end = me.start;
-			} else {
-				start = me.start;
-				end = me.end;
-			}
-			if (me.isHorizontal()) {
-				innerDimension = me.width;
-				value = reverse ? me.right - pixel : pixel - me.left;
-			} else {
-				innerDimension = me.height;
-				value = reverse ? pixel - me.top : me.bottom - pixel;
-			}
-			if (value !== start) {
-				if (start === 0) { // include zero tick
-					var offset = helpers.getValueOrDefault(
-						me.options.ticks.fontSize,
-						Chart.defaults.global.defaultFontSize
-					);
-					value -= offset;
-					innerDimension -= offset;
-					start = firstTickValue;
-				}
-				value *= log10(end) - log10(start);
-				value /= innerDimension;
-				value = Math.pow(10, log10(start) + value);
-			}
-			return value;
-		}
-	});
-
-	scaleService.registerScaleType('logarithmic', LogarithmicScale, defaultConfig);
-};
-
-},{"33":33,"34":34,"35":35,"46":46}],58:[function(require,module,exports){
-'use strict';
-
-var defaults = require(26);
-var helpers = require(46);
-var scaleService = require(34);
-var Ticks = require(35);
-
-module.exports = function(Chart) {
-
-	var globalDefaults = defaults.global;
-
-	var defaultConfig = {
-		display: true,
-
-		// Boolean - Whether to animate scaling the chart from the centre
-		animate: true,
-		position: 'chartArea',
-
-		angleLines: {
-			display: true,
-			color: 'rgba(0, 0, 0, 0.1)',
-			lineWidth: 1
-		},
-
-		gridLines: {
-			circular: false
-		},
-
-		// label settings
-		ticks: {
-			// Boolean - Show a backdrop to the scale label
-			showLabelBackdrop: true,
-
-			// String - The colour of the label backdrop
-			backdropColor: 'rgba(255,255,255,0.75)',
-
-			// Number - The backdrop padding above & below the label in pixels
-			backdropPaddingY: 2,
-
-			// Number - The backdrop padding to the side of the label in pixels
-			backdropPaddingX: 2,
-
-			callback: Ticks.formatters.linear
-		},
-
-		pointLabels: {
-			// Boolean - if true, show point labels
-			display: true,
-
-			// Number - Point label font size in pixels
-			fontSize: 10,
-
-			// Function - Used to convert point labels
-			callback: function(label) {
-				return label;
-			}
-		}
-	};
-
-	function getValueCount(scale) {
-		var opts = scale.options;
-		return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
-	}
-
-	function getPointLabelFontOptions(scale) {
-		var pointLabelOptions = scale.options.pointLabels;
-		var fontSize = helpers.valueOrDefault(pointLabelOptions.fontSize, globalDefaults.defaultFontSize);
-		var fontStyle = helpers.valueOrDefault(pointLabelOptions.fontStyle, globalDefaults.defaultFontStyle);
-		var fontFamily = helpers.valueOrDefault(pointLabelOptions.fontFamily, globalDefaults.defaultFontFamily);
-		var font = helpers.fontString(fontSize, fontStyle, fontFamily);
-
-		return {
-			size: fontSize,
-			style: fontStyle,
-			family: fontFamily,
-			font: font
-		};
-	}
-
-	function measureLabelSize(ctx, fontSize, label) {
-		if (helpers.isArray(label)) {
-			return {
-				w: helpers.longestText(ctx, ctx.font, label),
-				h: (label.length * fontSize) + ((label.length - 1) * 1.5 * fontSize)
-			};
-		}
-
-		return {
-			w: ctx.measureText(label).width,
-			h: fontSize
-		};
-	}
-
-	function determineLimits(angle, pos, size, min, max) {
-		if (angle === min || angle === max) {
-			return {
-				start: pos - (size / 2),
-				end: pos + (size / 2)
-			};
-		} else if (angle < min || angle > max) {
-			return {
-				start: pos - size - 5,
-				end: pos
-			};
-		}
-
-		return {
-			start: pos,
-			end: pos + size + 5
-		};
-	}
-
-	/**
-	 * Helper function to fit a radial linear scale with point labels
-	 */
-	function fitWithPointLabels(scale) {
-		/*
-		 * Right, this is really confusing and there is a lot of maths going on here
-		 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
-		 *
-		 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
-		 *
-		 * Solution:
-		 *
-		 * We assume the radius of the polygon is half the size of the canvas at first
-		 * at each index we check if the text overlaps.
-		 *
-		 * Where it does, we store that angle and that index.
-		 *
-		 * After finding the largest index and angle we calculate how much we need to remove
-		 * from the shape radius to move the point inwards by that x.
-		 *
-		 * We average the left and right distances to get the maximum shape radius that can fit in the box
-		 * along with labels.
-		 *
-		 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
-		 * on each side, removing that from the size, halving it and adding the left x protrusion width.
-		 *
-		 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
-		 * and position it in the most space efficient manner
-		 *
-		 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
-		 */
-
-		var plFont = getPointLabelFontOptions(scale);
-
-		// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
-		// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
-		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
-		var furthestLimits = {
-			r: scale.width,
-			l: 0,
-			t: scale.height,
-			b: 0
-		};
-		var furthestAngles = {};
-		var i, textSize, pointPosition;
-
-		scale.ctx.font = plFont.font;
-		scale._pointLabelSizes = [];
-
-		var valueCount = getValueCount(scale);
-		for (i = 0; i < valueCount; i++) {
-			pointPosition = scale.getPointPosition(i, largestPossibleRadius);
-			textSize = measureLabelSize(scale.ctx, plFont.size, scale.pointLabels[i] || '');
-			scale._pointLabelSizes[i] = textSize;
-
-			// Add quarter circle to make degree 0 mean top of circle
-			var angleRadians = scale.getIndexAngle(i);
-			var angle = helpers.toDegrees(angleRadians) % 360;
-			var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
-			var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);
-
-			if (hLimits.start < furthestLimits.l) {
-				furthestLimits.l = hLimits.start;
-				furthestAngles.l = angleRadians;
-			}
-
-			if (hLimits.end > furthestLimits.r) {
-				furthestLimits.r = hLimits.end;
-				furthestAngles.r = angleRadians;
-			}
-
-			if (vLimits.start < furthestLimits.t) {
-				furthestLimits.t = vLimits.start;
-				furthestAngles.t = angleRadians;
-			}
-
-			if (vLimits.end > furthestLimits.b) {
-				furthestLimits.b = vLimits.end;
-				furthestAngles.b = angleRadians;
-			}
-		}
-
-		scale.setReductions(largestPossibleRadius, furthestLimits, furthestAngles);
-	}
-
-	/**
-	 * Helper function to fit a radial linear scale with no point labels
-	 */
-	function fit(scale) {
-		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
-		scale.drawingArea = Math.round(largestPossibleRadius);
-		scale.setCenterPoint(0, 0, 0, 0);
-	}
-
-	function getTextAlignForAngle(angle) {
-		if (angle === 0 || angle === 180) {
-			return 'center';
-		} else if (angle < 180) {
-			return 'left';
-		}
-
-		return 'right';
-	}
-
-	function fillText(ctx, text, position, fontSize) {
-		if (helpers.isArray(text)) {
-			var y = position.y;
-			var spacing = 1.5 * fontSize;
-
-			for (var i = 0; i < text.length; ++i) {
-				ctx.fillText(text[i], position.x, y);
-				y += spacing;
-			}
-		} else {
-			ctx.fillText(text, position.x, position.y);
-		}
-	}
-
-	function adjustPointPositionForLabelHeight(angle, textSize, position) {
-		if (angle === 90 || angle === 270) {
-			position.y -= (textSize.h / 2);
-		} else if (angle > 270 || angle < 90) {
-			position.y -= textSize.h;
-		}
-	}
-
-	function drawPointLabels(scale) {
-		var ctx = scale.ctx;
-		var opts = scale.options;
-		var angleLineOpts = opts.angleLines;
-		var pointLabelOpts = opts.pointLabels;
-
-		ctx.lineWidth = angleLineOpts.lineWidth;
-		ctx.strokeStyle = angleLineOpts.color;
-
-		var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);
-
-		// Point Label Font
-		var plFont = getPointLabelFontOptions(scale);
-
-		ctx.textBaseline = 'top';
-
-		for (var i = getValueCount(scale) - 1; i >= 0; i--) {
-			if (angleLineOpts.display) {
-				var outerPosition = scale.getPointPosition(i, outerDistance);
-				ctx.beginPath();
-				ctx.moveTo(scale.xCenter, scale.yCenter);
-				ctx.lineTo(outerPosition.x, outerPosition.y);
-				ctx.stroke();
-				ctx.closePath();
-			}
-
-			if (pointLabelOpts.display) {
-				// Extra 3px out for some label spacing
-				var pointLabelPosition = scale.getPointPosition(i, outerDistance + 5);
-
-				// Keep this in loop since we may support array properties here
-				var pointLabelFontColor = helpers.valueAtIndexOrDefault(pointLabelOpts.fontColor, i, globalDefaults.defaultFontColor);
-				ctx.font = plFont.font;
-				ctx.fillStyle = pointLabelFontColor;
-
-				var angleRadians = scale.getIndexAngle(i);
-				var angle = helpers.toDegrees(angleRadians);
-				ctx.textAlign = getTextAlignForAngle(angle);
-				adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
-				fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.size);
-			}
-		}
-	}
-
-	function drawRadiusLine(scale, gridLineOpts, radius, index) {
-		var ctx = scale.ctx;
-		ctx.strokeStyle = helpers.valueAtIndexOrDefault(gridLineOpts.color, index - 1);
-		ctx.lineWidth = helpers.valueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);
-
-		if (scale.options.gridLines.circular) {
-			// Draw circular arcs between the points
-			ctx.beginPath();
-			ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
-			ctx.closePath();
-			ctx.stroke();
-		} else {
-			// Draw straight lines connecting each index
-			var valueCount = getValueCount(scale);
-
-			if (valueCount === 0) {
-				return;
-			}
-
-			ctx.beginPath();
-			var pointPosition = scale.getPointPosition(0, radius);
-			ctx.moveTo(pointPosition.x, pointPosition.y);
-
-			for (var i = 1; i < valueCount; i++) {
-				pointPosition = scale.getPointPosition(i, radius);
-				ctx.lineTo(pointPosition.x, pointPosition.y);
-			}
-
-			ctx.closePath();
-			ctx.stroke();
-		}
-	}
-
-	function numberOrZero(param) {
-		return helpers.isNumber(param) ? param : 0;
-	}
-
-	var LinearRadialScale = Chart.LinearScaleBase.extend({
-		setDimensions: function() {
-			var me = this;
-			var opts = me.options;
-			var tickOpts = opts.ticks;
-			// Set the unconstrained dimension before label rotation
-			me.width = me.maxWidth;
-			me.height = me.maxHeight;
-			me.xCenter = Math.round(me.width / 2);
-			me.yCenter = Math.round(me.height / 2);
-
-			var minSize = helpers.min([me.height, me.width]);
-			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
-			me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
-		},
-		determineDataLimits: function() {
-			var me = this;
-			var chart = me.chart;
-			var min = Number.POSITIVE_INFINITY;
-			var max = Number.NEGATIVE_INFINITY;
-
-			helpers.each(chart.data.datasets, function(dataset, datasetIndex) {
-				if (chart.isDatasetVisible(datasetIndex)) {
-					var meta = chart.getDatasetMeta(datasetIndex);
-
-					helpers.each(dataset.data, function(rawValue, index) {
-						var value = +me.getRightValue(rawValue);
-						if (isNaN(value) || meta.data[index].hidden) {
-							return;
-						}
-
-						min = Math.min(value, min);
-						max = Math.max(value, max);
-					});
-				}
-			});
-
-			me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
-			me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);
-
-			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
-			me.handleTickRangeOptions();
-		},
-		getTickLimit: function() {
-			var tickOpts = this.options.ticks;
-			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
-			return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
-		},
-		convertTicksToLabels: function() {
-			var me = this;
-
-			Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);
-
-			// Point labels
-			me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
-		},
-		getLabelForIndex: function(index, datasetIndex) {
-			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
-		},
-		fit: function() {
-			if (this.options.pointLabels.display) {
-				fitWithPointLabels(this);
-			} else {
-				fit(this);
-			}
-		},
-		/**
-		 * Set radius reductions and determine new radius and center point
-		 * @private
-		 */
-		setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
-			var me = this;
-			var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
-			var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
-			var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
-			var radiusReductionBottom = -Math.max(furthestLimits.b - me.height, 0) / Math.cos(furthestAngles.b);
-
-			radiusReductionLeft = numberOrZero(radiusReductionLeft);
-			radiusReductionRight = numberOrZero(radiusReductionRight);
-			radiusReductionTop = numberOrZero(radiusReductionTop);
-			radiusReductionBottom = numberOrZero(radiusReductionBottom);
-
-			me.drawingArea = Math.min(
-				Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
-				Math.round(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
-			me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
-		},
-		setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
-			var me = this;
-			var maxRight = me.width - rightMovement - me.drawingArea;
-			var maxLeft = leftMovement + me.drawingArea;
-			var maxTop = topMovement + me.drawingArea;
-			var maxBottom = me.height - bottomMovement - me.drawingArea;
-
-			me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
-			me.yCenter = Math.round(((maxTop + maxBottom) / 2) + me.top);
-		},
-
-		getIndexAngle: function(index) {
-			var angleMultiplier = (Math.PI * 2) / getValueCount(this);
-			var startAngle = this.chart.options && this.chart.options.startAngle ?
-				this.chart.options.startAngle :
-				0;
-
-			var startAngleRadians = startAngle * Math.PI * 2 / 360;
-
-			// Start from the top instead of right, so remove a quarter of the circle
-			return index * angleMultiplier + startAngleRadians;
-		},
-		getDistanceFromCenterForValue: function(value) {
-			var me = this;
-
-			if (value === null) {
-				return 0; // null always in center
-			}
-
-			// Take into account half font size + the yPadding of the top value
-			var scalingFactor = me.drawingArea / (me.max - me.min);
-			if (me.options.ticks.reverse) {
-				return (me.max - value) * scalingFactor;
-			}
-			return (value - me.min) * scalingFactor;
-		},
-		getPointPosition: function(index, distanceFromCenter) {
-			var me = this;
-			var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
-			return {
-				x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
-				y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
-			};
-		},
-		getPointPositionForValue: function(index, value) {
-			return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
-		},
-
-		getBasePosition: function() {
-			var me = this;
-			var min = me.min;
-			var max = me.max;
-
-			return me.getPointPositionForValue(0,
-				me.beginAtZero ? 0 :
-				min < 0 && max < 0 ? max :
-				min > 0 && max > 0 ? min :
-				0);
-		},
-
-		draw: function() {
-			var me = this;
-			var opts = me.options;
-			var gridLineOpts = opts.gridLines;
-			var tickOpts = opts.ticks;
-			var valueOrDefault = helpers.valueOrDefault;
-
-			if (opts.display) {
-				var ctx = me.ctx;
-				var startAngle = this.getIndexAngle(0);
-
-				// Tick Font
-				var tickFontSize = valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
-				var tickFontStyle = valueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
-				var tickFontFamily = valueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
-				var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
-
-				helpers.each(me.ticks, function(label, index) {
-					// Don't draw a centre value (if it is minimum)
-					if (index > 0 || tickOpts.reverse) {
-						var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);
-
-						// Draw circular lines around the scale
-						if (gridLineOpts.display && index !== 0) {
-							drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
-						}
-
-						if (tickOpts.display) {
-							var tickFontColor = valueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
-							ctx.font = tickLabelFont;
-
-							ctx.save();
-							ctx.translate(me.xCenter, me.yCenter);
-							ctx.rotate(startAngle);
-
-							if (tickOpts.showLabelBackdrop) {
-								var labelWidth = ctx.measureText(label).width;
-								ctx.fillStyle = tickOpts.backdropColor;
-								ctx.fillRect(
-									-labelWidth / 2 - tickOpts.backdropPaddingX,
-									-yCenterOffset - tickFontSize / 2 - tickOpts.backdropPaddingY,
-									labelWidth + tickOpts.backdropPaddingX * 2,
-									tickFontSize + tickOpts.backdropPaddingY * 2
-								);
-							}
-
-							ctx.textAlign = 'center';
-							ctx.textBaseline = 'middle';
-							ctx.fillStyle = tickFontColor;
-							ctx.fillText(label, 0, -yCenterOffset);
-							ctx.restore();
-						}
-					}
-				});
-
-				if (opts.angleLines.display || opts.pointLabels.display) {
-					drawPointLabels(me);
-				}
-			}
-		}
-	});
-
-	scaleService.registerScaleType('radialLinear', LinearRadialScale, defaultConfig);
-};
-
-},{"26":26,"34":34,"35":35,"46":46}],59:[function(require,module,exports){
-/* global window: false */
-'use strict';
-
-var moment = require(1);
-moment = typeof moment === 'function' ? moment : window.moment;
-
-var defaults = require(26);
-var helpers = require(46);
-var Scale = require(33);
-var scaleService = require(34);
-
-// Integer constants are from the ES6 spec.
-var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
-var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;
-
-var INTERVALS = {
-	millisecond: {
-		common: true,
-		size: 1,
-		steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
-	},
-	second: {
-		common: true,
-		size: 1000,
-		steps: [1, 2, 5, 10, 15, 30]
-	},
-	minute: {
-		common: true,
-		size: 60000,
-		steps: [1, 2, 5, 10, 15, 30]
-	},
-	hour: {
-		common: true,
-		size: 3600000,
-		steps: [1, 2, 3, 6, 12]
-	},
-	day: {
-		common: true,
-		size: 86400000,
-		steps: [1, 2, 5]
-	},
-	week: {
-		common: false,
-		size: 604800000,
-		steps: [1, 2, 3, 4]
-	},
-	month: {
-		common: true,
-		size: 2.628e9,
-		steps: [1, 2, 3]
-	},
-	quarter: {
-		common: false,
-		size: 7.884e9,
-		steps: [1, 2, 3, 4]
-	},
-	year: {
-		common: true,
-		size: 3.154e10
-	}
-};
-
-var UNITS = Object.keys(INTERVALS);
-
-function sorter(a, b) {
-	return a - b;
+var src = core_controller;
+if (typeof window !== 'undefined') {
+	window.Chart = core_controller;
 }
 
-function arrayUnique(items) {
-	var hash = {};
-	var out = [];
-	var i, ilen, item;
-
-	for (i = 0, ilen = items.length; i < ilen; ++i) {
-		item = items[i];
-		if (!hash[item]) {
-			hash[item] = true;
-			out.push(item);
-		}
-	}
-
-	return out;
-}
+// DEPRECATIONS
 
 /**
- * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
- * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
- * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
- * extremity (left + width or top + height). Note that it would be more optimized to directly
- * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
- * to create the lookup table. The table ALWAYS contains at least two items: min and max.
- *
- * @param {Number[]} timestamps - timestamps sorted from lowest to highest.
- * @param {String} distribution - If 'linear', timestamps will be spread linearly along the min
- * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
- * If 'series', timestamps will be positioned at the same distance from each other. In this
- * case, only timestamps that break the time linearity are registered, meaning that in the
- * best case, all timestamps are linear, the table contains only min and max.
+ * Provided for backward compatibility, not available anymore
+ * @namespace Chart.Chart
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ * @private
  */
-function buildLookupTable(timestamps, min, max, distribution) {
-	if (distribution === 'linear' || !timestamps.length) {
-		return [
-			{time: min, pos: 0},
-			{time: max, pos: 1}
-		];
-	}
-
-	var table = [];
-	var items = [min];
-	var i, ilen, prev, curr, next;
-
-	for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
-		curr = timestamps[i];
-		if (curr > min && curr < max) {
-			items.push(curr);
-		}
-	}
-
-	items.push(max);
-
-	for (i = 0, ilen = items.length; i < ilen; ++i) {
-		next = items[i + 1];
-		prev = items[i - 1];
-		curr = items[i];
-
-		// only add points that breaks the scale linearity
-		if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
-			table.push({time: curr, pos: i / (ilen - 1)});
-		}
-	}
-
-	return table;
-}
-
-// @see adapted from http://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
-function lookup(table, key, value) {
-	var lo = 0;
-	var hi = table.length - 1;
-	var mid, i0, i1;
-
-	while (lo >= 0 && lo <= hi) {
-		mid = (lo + hi) >> 1;
-		i0 = table[mid - 1] || null;
-		i1 = table[mid];
-
-		if (!i0) {
-			// given value is outside table (before first item)
-			return {lo: null, hi: i1};
-		} else if (i1[key] < value) {
-			lo = mid + 1;
-		} else if (i0[key] > value) {
-			hi = mid - 1;
-		} else {
-			return {lo: i0, hi: i1};
-		}
-	}
-
-	// given value is outside table (after last item)
-	return {lo: i1, hi: null};
-}
+core_controller.Chart = core_controller;
 
 /**
- * Linearly interpolates the given source `value` using the table items `skey` values and
- * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
- * returns the position for a timestamp equal to 42. If value is out of bounds, values at
- * index [0, 1] or [n - 1, n] are used for the interpolation.
+ * Provided for backward compatibility, not available anymore
+ * @namespace Chart.Legend
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
  */
-function interpolate(table, skey, sval, tkey) {
-	var range = lookup(table, skey, sval);
-
-	// Note: the lookup table ALWAYS contains at least 2 items (min and max)
-	var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
-	var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;
-
-	var span = next[skey] - prev[skey];
-	var ratio = span ? (sval - prev[skey]) / span : 0;
-	var offset = (next[tkey] - prev[tkey]) * ratio;
-
-	return prev[tkey] + offset;
-}
+core_controller.Legend = plugins.legend._element;
 
 /**
- * Convert the given value to a moment object using the given time options.
- * @see http://momentjs.com/docs/#/parsing/
+ * Provided for backward compatibility, not available anymore
+ * @namespace Chart.Title
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
  */
-function momentify(value, options) {
-	var parser = options.parser;
-	var format = options.parser || options.format;
-
-	if (typeof parser === 'function') {
-		return parser(value);
-	}
-
-	if (typeof value === 'string' && typeof format === 'string') {
-		return moment(value, format);
-	}
-
-	if (!(value instanceof moment)) {
-		value = moment(value);
-	}
-
-	if (value.isValid()) {
-		return value;
-	}
-
-	// Labels are in an incompatible moment format and no `parser` has been provided.
-	// The user might still use the deprecated `format` option to convert his inputs.
-	if (typeof format === 'function') {
-		return format(value);
-	}
-
-	return value;
-}
-
-function parse(input, scale) {
-	if (helpers.isNullOrUndef(input)) {
-		return null;
-	}
-
-	var options = scale.options.time;
-	var value = momentify(scale.getRightValue(input), options);
-	if (!value.isValid()) {
-		return null;
-	}
-
-	if (options.round) {
-		value.startOf(options.round);
-	}
-
-	return value.valueOf();
-}
+core_controller.Title = plugins.title._element;
 
 /**
- * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
- * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
+ * Provided for backward compatibility, use Chart.plugins instead
+ * @namespace Chart.pluginService
+ * @deprecated since version 2.1.5
+ * @todo remove at version 3
+ * @private
  */
-function determineStepSize(min, max, unit, capacity) {
-	var range = max - min;
-	var interval = INTERVALS[unit];
-	var milliseconds = interval.size;
-	var steps = interval.steps;
-	var i, ilen, factor;
-
-	if (!steps) {
-		return Math.ceil(range / (capacity * milliseconds));
-	}
-
-	for (i = 0, ilen = steps.length; i < ilen; ++i) {
-		factor = steps[i];
-		if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
-			break;
-		}
-	}
-
-	return factor;
-}
+core_controller.pluginService = core_controller.plugins;
 
 /**
- * Figures out what unit results in an appropriate number of auto-generated ticks
+ * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
+ * effect, instead simply create/register plugins via plain JavaScript objects.
+ * @interface Chart.PluginBase
+ * @deprecated since version 2.5.0
+ * @todo remove at version 3
+ * @private
  */
-function determineUnitForAutoTicks(minUnit, min, max, capacity) {
-	var ilen = UNITS.length;
-	var i, interval, factor;
-
-	for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
-		interval = INTERVALS[UNITS[i]];
-		factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;
-
-		if (interval.common && Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
-			return UNITS[i];
-		}
-	}
-
-	return UNITS[ilen - 1];
-}
+core_controller.PluginBase = core_controller.Element.extend({});
 
 /**
- * Figures out what unit to format a set of ticks with
+ * Provided for backward compatibility, use Chart.helpers.canvas instead.
+ * @namespace Chart.canvasHelpers
+ * @deprecated since version 2.6.0
+ * @todo remove at version 3
+ * @private
  */
-function determineUnitForFormatting(ticks, minUnit, min, max) {
-	var duration = moment.duration(moment(max).diff(moment(min)));
-	var ilen = UNITS.length;
-	var i, unit;
-
-	for (i = ilen - 1; i >= UNITS.indexOf(minUnit); i--) {
-		unit = UNITS[i];
-		if (INTERVALS[unit].common && duration.as(unit) >= ticks.length) {
-			return unit;
-		}
-	}
-
-	return UNITS[minUnit ? UNITS.indexOf(minUnit) : 0];
-}
-
-function determineMajorUnit(unit) {
-	for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
-		if (INTERVALS[UNITS[i]].common) {
-			return UNITS[i];
-		}
-	}
-}
+core_controller.canvasHelpers = core_controller.helpers.canvas;
 
 /**
- * Generates a maximum of `capacity` timestamps between min and max, rounded to the
- * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
- * Important: this method can return ticks outside the min and max range, it's the
- * responsibility of the calling code to clamp values if needed.
+ * Provided for backward compatibility, use Chart.layouts instead.
+ * @namespace Chart.layoutService
+ * @deprecated since version 2.7.3
+ * @todo remove at version 3
+ * @private
  */
-function generate(min, max, capacity, options) {
-	var timeOpts = options.time;
-	var minor = timeOpts.unit || determineUnitForAutoTicks(timeOpts.minUnit, min, max, capacity);
-	var major = determineMajorUnit(minor);
-	var stepSize = helpers.valueOrDefault(timeOpts.stepSize, timeOpts.unitStepSize);
-	var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
-	var majorTicksEnabled = options.ticks.major.enabled;
-	var interval = INTERVALS[minor];
-	var first = moment(min);
-	var last = moment(max);
-	var ticks = [];
-	var time;
-
-	if (!stepSize) {
-		stepSize = determineStepSize(min, max, minor, capacity);
-	}
-
-	// For 'week' unit, handle the first day of week option
-	if (weekday) {
-		first = first.isoWeekday(weekday);
-		last = last.isoWeekday(weekday);
-	}
-
-	// Align first/last ticks on unit
-	first = first.startOf(weekday ? 'day' : minor);
-	last = last.startOf(weekday ? 'day' : minor);
-
-	// Make sure that the last tick include max
-	if (last < max) {
-		last.add(1, minor);
-	}
-
-	time = moment(first);
-
-	if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
-		// Align the first tick on the previous `minor` unit aligned on the `major` unit:
-		// we first aligned time on the previous `major` unit then add the number of full
-		// stepSize there is between first and the previous major time.
-		time.startOf(major);
-		time.add(~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
-	}
-
-	for (; time < last; time.add(stepSize, minor)) {
-		ticks.push(+time);
-	}
-
-	ticks.push(+time);
-
-	return ticks;
-}
+core_controller.layoutService = core_controller.layouts;
 
 /**
- * Returns the right and left offsets from edges in the form of {left, right}.
- * Offsets are added when the `offset` option is true.
+ * Provided for backward compatibility, not available anymore.
+ * @namespace Chart.LinearScaleBase
+ * @deprecated since version 2.8
+ * @todo remove at version 3
+ * @private
  */
-function computeOffsets(table, ticks, min, max, options) {
-	var left = 0;
-	var right = 0;
-	var upper, lower;
-
-	if (options.offset && ticks.length) {
-		if (!options.time.min) {
-			upper = ticks.length > 1 ? ticks[1] : max;
-			lower = ticks[0];
-			left = (
-				interpolate(table, 'time', upper, 'pos') -
-				interpolate(table, 'time', lower, 'pos')
-			) / 2;
-		}
-		if (!options.time.max) {
-			upper = ticks[ticks.length - 1];
-			lower = ticks.length > 1 ? ticks[ticks.length - 2] : min;
-			right = (
-				interpolate(table, 'time', upper, 'pos') -
-				interpolate(table, 'time', lower, 'pos')
-			) / 2;
-		}
-	}
-
-	return {left: left, right: right};
-}
-
-function ticksFromTimestamps(values, majorUnit) {
-	var ticks = [];
-	var i, ilen, value, major;
-
-	for (i = 0, ilen = values.length; i < ilen; ++i) {
-		value = values[i];
-		major = majorUnit ? value === +moment(value).startOf(majorUnit) : false;
+core_controller.LinearScaleBase = scale_linearbase;
 
-		ticks.push({
-			value: value,
-			major: major
-		});
-	}
-
-	return ticks;
-}
-
-function determineLabelFormat(data, timeOpts) {
-	var i, momentDate, hasTime;
-	var ilen = data.length;
-
-	// find the label with the most parts (milliseconds, minutes, etc.)
-	// format all labels with the same level of detail as the most specific label
-	for (i = 0; i < ilen; i++) {
-		momentDate = momentify(data[i], timeOpts);
-		if (momentDate.millisecond() !== 0) {
-			return 'MMM D, YYYY h:mm:ss.SSS a';
-		}
-		if (momentDate.second() !== 0 || momentDate.minute() !== 0 || momentDate.hour() !== 0) {
-			hasTime = true;
-		}
-	}
-	if (hasTime) {
-		return 'MMM D, YYYY h:mm:ss a';
+/**
+ * Provided for backward compatibility, instead we should create a new Chart
+ * by setting the type in the config (`new Chart(id, {type: '{chart-type}'}`).
+ * @deprecated since version 2.8.0
+ * @todo remove at version 3
+ */
+core_controller.helpers.each(
+	[
+		'Bar',
+		'Bubble',
+		'Doughnut',
+		'Line',
+		'PolarArea',
+		'Radar',
+		'Scatter'
+	],
+	function(klass) {
+		core_controller[klass] = function(ctx, cfg) {
+			return new core_controller(ctx, core_controller.helpers.merge(cfg || {}, {
+				type: klass.charAt(0).toLowerCase() + klass.slice(1)
+			}));
+		};
 	}
-	return 'MMM D, YYYY';
-}
-
-module.exports = function() {
-
-	var defaultConfig = {
-		position: 'bottom',
-
-		/**
-		 * Data distribution along the scale:
-		 * - 'linear': data are spread according to their time (distances can vary),
-		 * - 'series': data are spread at the same distance from each other.
-		 * @see https://github.com/chartjs/Chart.js/pull/4507
-		 * @since 2.7.0
-		 */
-		distribution: 'linear',
-
-		/**
-		 * Scale boundary strategy (bypassed by min/max time options)
-		 * - `data`: make sure data are fully visible, ticks outside are removed
-		 * - `ticks`: make sure ticks are fully visible, data outside are truncated
-		 * @see https://github.com/chartjs/Chart.js/pull/4556
-		 * @since 2.7.0
-		 */
-		bounds: 'data',
-
-		time: {
-			parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
-			format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
-			unit: false, // false == automatic or override with week, month, year, etc.
-			round: false, // none, or override with week, month, year, etc.
-			displayFormat: false, // DEPRECATED
-			isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
-			minUnit: 'millisecond',
-
-			// defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
-			displayFormats: {
-				millisecond: 'h:mm:ss.SSS a', // 11:20:01.123 AM,
-				second: 'h:mm:ss a', // 11:20:01 AM
-				minute: 'h:mm a', // 11:20 AM
-				hour: 'hA', // 5PM
-				day: 'MMM D', // Sep 4
-				week: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
-				month: 'MMM YYYY', // Sept 2015
-				quarter: '[Q]Q - YYYY', // Q3
-				year: 'YYYY' // 2015
-			},
-		},
-		ticks: {
-			autoSkip: false,
-
-			/**
-			 * Ticks generation input values:
-			 * - 'auto': generates "optimal" ticks based on scale size and time options.
-			 * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
-			 * - 'labels': generates ticks from user given `data.labels` values ONLY.
-			 * @see https://github.com/chartjs/Chart.js/pull/4507
-			 * @since 2.7.0
-			 */
-			source: 'auto',
-
-			major: {
-				enabled: false
-			}
-		}
-	};
-
-	var TimeScale = Scale.extend({
-		initialize: function() {
-			if (!moment) {
-				throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
-			}
-
-			this.mergeTicksOptions();
-
-			Scale.prototype.initialize.call(this);
-		},
-
-		update: function() {
-			var me = this;
-			var options = me.options;
-
-			// DEPRECATIONS: output a message only one time per update
-			if (options.time && options.time.format) {
-				console.warn('options.time.format is deprecated and replaced by options.time.parser.');
-			}
-
-			return Scale.prototype.update.apply(me, arguments);
-		},
-
-		/**
-		 * Allows data to be referenced via 't' attribute
-		 */
-		getRightValue: function(rawValue) {
-			if (rawValue && rawValue.t !== undefined) {
-				rawValue = rawValue.t;
-			}
-			return Scale.prototype.getRightValue.call(this, rawValue);
-		},
-
-		determineDataLimits: function() {
-			var me = this;
-			var chart = me.chart;
-			var timeOpts = me.options.time;
-			var unit = timeOpts.unit || 'day';
-			var min = MAX_INTEGER;
-			var max = MIN_INTEGER;
-			var timestamps = [];
-			var datasets = [];
-			var labels = [];
-			var i, j, ilen, jlen, data, timestamp;
-
-			// Convert labels to timestamps
-			for (i = 0, ilen = chart.data.labels.length; i < ilen; ++i) {
-				labels.push(parse(chart.data.labels[i], me));
-			}
-
-			// Convert data to timestamps
-			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
-				if (chart.isDatasetVisible(i)) {
-					data = chart.data.datasets[i].data;
-
-					// Let's consider that all data have the same format.
-					if (helpers.isObject(data[0])) {
-						datasets[i] = [];
-
-						for (j = 0, jlen = data.length; j < jlen; ++j) {
-							timestamp = parse(data[j], me);
-							timestamps.push(timestamp);
-							datasets[i][j] = timestamp;
-						}
-					} else {
-						timestamps.push.apply(timestamps, labels);
-						datasets[i] = labels.slice(0);
-					}
-				} else {
-					datasets[i] = [];
-				}
-			}
-
-			if (labels.length) {
-				// Sort labels **after** data have been converted
-				labels = arrayUnique(labels).sort(sorter);
-				min = Math.min(min, labels[0]);
-				max = Math.max(max, labels[labels.length - 1]);
-			}
-
-			if (timestamps.length) {
-				timestamps = arrayUnique(timestamps).sort(sorter);
-				min = Math.min(min, timestamps[0]);
-				max = Math.max(max, timestamps[timestamps.length - 1]);
-			}
-
-			min = parse(timeOpts.min, me) || min;
-			max = parse(timeOpts.max, me) || max;
-
-			// In case there is no valid min/max, set limits based on unit time option
-			min = min === MAX_INTEGER ? +moment().startOf(unit) : min;
-			max = max === MIN_INTEGER ? +moment().endOf(unit) + 1 : max;
-
-			// Make sure that max is strictly higher than min (required by the lookup table)
-			me.min = Math.min(min, max);
-			me.max = Math.max(min + 1, max);
-
-			// PRIVATE
-			me._horizontal = me.isHorizontal();
-			me._table = [];
-			me._timestamps = {
-				data: timestamps,
-				datasets: datasets,
-				labels: labels
-			};
-		},
-
-		buildTicks: function() {
-			var me = this;
-			var min = me.min;
-			var max = me.max;
-			var options = me.options;
-			var timeOpts = options.time;
-			var timestamps = [];
-			var ticks = [];
-			var i, ilen, timestamp;
-
-			switch (options.ticks.source) {
-			case 'data':
-				timestamps = me._timestamps.data;
-				break;
-			case 'labels':
-				timestamps = me._timestamps.labels;
-				break;
-			case 'auto':
-			default:
-				timestamps = generate(min, max, me.getLabelCapacity(min), options);
-			}
-
-			if (options.bounds === 'ticks' && timestamps.length) {
-				min = timestamps[0];
-				max = timestamps[timestamps.length - 1];
-			}
-
-			// Enforce limits with user min/max options
-			min = parse(timeOpts.min, me) || min;
-			max = parse(timeOpts.max, me) || max;
-
-			// Remove ticks outside the min/max range
-			for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
-				timestamp = timestamps[i];
-				if (timestamp >= min && timestamp <= max) {
-					ticks.push(timestamp);
-				}
-			}
-
-			me.min = min;
-			me.max = max;
+);
 
-			// PRIVATE
-			me._unit = timeOpts.unit || determineUnitForFormatting(ticks, timeOpts.minUnit, me.min, me.max);
-			me._majorUnit = determineMajorUnit(me._unit);
-			me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
-			me._offsets = computeOffsets(me._table, ticks, min, max, options);
-			me._labelFormat = determineLabelFormat(me._timestamps.data, timeOpts);
-
-			return ticksFromTimestamps(ticks, me._majorUnit);
-		},
-
-		getLabelForIndex: function(index, datasetIndex) {
-			var me = this;
-			var data = me.chart.data;
-			var timeOpts = me.options.time;
-			var label = data.labels && index < data.labels.length ? data.labels[index] : '';
-			var value = data.datasets[datasetIndex].data[index];
-
-			if (helpers.isObject(value)) {
-				label = me.getRightValue(value);
-			}
-			if (timeOpts.tooltipFormat) {
-				return momentify(label, timeOpts).format(timeOpts.tooltipFormat);
-			}
-			if (typeof label === 'string') {
-				return label;
-			}
-
-			return momentify(label, timeOpts).format(me._labelFormat);
-		},
-
-		/**
-		 * Function to format an individual tick mark
-		 * @private
-		 */
-		tickFormatFunction: function(tick, index, ticks, formatOverride) {
-			var me = this;
-			var options = me.options;
-			var time = tick.valueOf();
-			var formats = options.time.displayFormats;
-			var minorFormat = formats[me._unit];
-			var majorUnit = me._majorUnit;
-			var majorFormat = formats[majorUnit];
-			var majorTime = tick.clone().startOf(majorUnit).valueOf();
-			var majorTickOpts = options.ticks.major;
-			var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
-			var label = tick.format(formatOverride ? formatOverride : major ? majorFormat : minorFormat);
-			var tickOpts = major ? majorTickOpts : options.ticks.minor;
-			var formatter = helpers.valueOrDefault(tickOpts.callback, tickOpts.userCallback);
-
-			return formatter ? formatter(label, index, ticks) : label;
-		},
+return src;
 
-		convertTicksToLabels: function(ticks) {
-			var labels = [];
-			var i, ilen;
-
-			for (i = 0, ilen = ticks.length; i < ilen; ++i) {
-				labels.push(this.tickFormatFunction(moment(ticks[i].value), i, ticks));
-			}
-
-			return labels;
-		},
-
-		/**
-		 * @private
-		 */
-		getPixelForOffset: function(time) {
-			var me = this;
-			var size = me._horizontal ? me.width : me.height;
-			var start = me._horizontal ? me.left : me.top;
-			var pos = interpolate(me._table, 'time', time, 'pos');
-
-			return start + size * (me._offsets.left + pos) / (me._offsets.left + 1 + me._offsets.right);
-		},
-
-		getPixelForValue: function(value, index, datasetIndex) {
-			var me = this;
-			var time = null;
-
-			if (index !== undefined && datasetIndex !== undefined) {
-				time = me._timestamps.datasets[datasetIndex][index];
-			}
-
-			if (time === null) {
-				time = parse(value, me);
-			}
-
-			if (time !== null) {
-				return me.getPixelForOffset(time);
-			}
-		},
-
-		getPixelForTick: function(index) {
-			var ticks = this.getTicks();
-			return index >= 0 && index < ticks.length ?
-				this.getPixelForOffset(ticks[index].value) :
-				null;
-		},
-
-		getValueForPixel: function(pixel) {
-			var me = this;
-			var size = me._horizontal ? me.width : me.height;
-			var start = me._horizontal ? me.left : me.top;
-			var pos = (size ? (pixel - start) / size : 0) * (me._offsets.left + 1 + me._offsets.left) - me._offsets.right;
-			var time = interpolate(me._table, 'pos', pos, 'time');
-
-			return moment(time);
-		},
-
-		/**
-		 * Crude approximation of what the label width might be
-		 * @private
-		 */
-		getLabelWidth: function(label) {
-			var me = this;
-			var ticksOpts = me.options.ticks;
-			var tickLabelWidth = me.ctx.measureText(label).width;
-			var angle = helpers.toRadians(ticksOpts.maxRotation);
-			var cosRotation = Math.cos(angle);
-			var sinRotation = Math.sin(angle);
-			var tickFontSize = helpers.valueOrDefault(ticksOpts.fontSize, defaults.global.defaultFontSize);
-
-			return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
-		},
-
-		/**
-		 * @private
-		 */
-		getLabelCapacity: function(exampleTime) {
-			var me = this;
-
-			var formatOverride = me.options.time.displayFormats.millisecond;	// Pick the longest format for guestimation
-
-			var exampleLabel = me.tickFormatFunction(moment(exampleTime), 0, [], formatOverride);
-			var tickLabelWidth = me.getLabelWidth(exampleLabel);
-			var innerWidth = me.isHorizontal() ? me.width : me.height;
-
-			var capacity = Math.floor(innerWidth / tickLabelWidth);
-			return capacity > 0 ? capacity : 1;
-		}
-	});
-
-	scaleService.registerScaleType('time', TimeScale, defaultConfig);
-};
-
-},{"1":1,"26":26,"33":33,"34":34,"46":46}]},{},[7])(7)
-});
+})));