New trunk

bzr revid: pinky-3f10ee12cea3c4c75cef44ab04ad33ef47432907

1 files changed, 37 insertions, 0 deletions

diff --git a/bin/pychart/linear_coord.py b/bin/pychart/linear_coord.py
new file mode 100644
index 00000000000..e54d1789f24
--- /dev/null
+++ b/bin/pychart/linear_coord.py
@@ -0,0 +1,37 @@
+#
+# Copyright (C) 2000-2005 by Yasushi Saito (yasushi.saito@gmail.com)
+# 
+# Jockey is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation; either version 2, or (at your option) any
+# later version.
+#
+# Jockey is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+# for more details.
+#
+import coord
+import math
+import pychart_util
+
+class T(coord.T):
+    def get_canvas_pos(self, size, val, min, max2):
+        return size * (val - min) / max(float(max2 - min),0.01)
+
+    def get_tics(self, min, max, interval):
+        v = []
+        x = min
+        while x <= max:
+            v.append(x)
+            x += interval
+        return v
+    def get_min_max(self, dmin, dmax, interval):
+        if not interval:
+            if dmax == dmin:
+                interval = 10
+            else:
+                interval = 10 ** (float(int(math.log(dmax-dmin)/math.log(10))))
+        dmin = min(dmin, pychart_util.round_down(dmin, interval))
+        dmax = max(dmax, pychart_util.round_up(dmax, interval) + interval/2.0)
+        return dmin, dmax, interval