Revision: 5043
http://matplotlib.svn.sourceforge.net/matplotlib/?rev=5043&view=rev
Author: efiring
Date: 2008-04-15 10:41:53 -0700 (Tue, 15 Apr 2008)
Log Message:
-----------
Speed up color mapping
Modified Paths:
--------------
trunk/matplotlib/CHANGELOG
trunk/matplotlib/lib/matplotlib/colors.py
Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG 2008-04-13 04:52:41 UTC (rev 5042)
+++ trunk/matplotlib/CHANGELOG 2008-04-15 17:41:53 UTC (rev 5043)
@@ -1,3 +1,5 @@
+2008-04-15 Speed up color mapping. - EF
+
2008-04-12 Speed up zooming and panning of dense images. - EF
2008-04-11 Fix global font rcParam setting after initialization
Modified: trunk/matplotlib/lib/matplotlib/colors.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/colors.py 2008-04-13 04:52:41 UTC (rev
5042)
+++ trunk/matplotlib/lib/matplotlib/colors.py 2008-04-15 17:41:53 UTC (rev
5043)
@@ -446,7 +446,7 @@
lut = (self._lut * 255).astype(npy.uint8)
else:
lut = self._lut
- rgba = lut[xa]
+ rgba = lut.take(xa, axis=0) # twice as fast as lut[xa]
if vtype == 'scalar':
rgba = tuple(rgba[0,:])
return rgba
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