Merge pull request #1515 from ivanov/set-cmap

dmcdougall · dmcdougall · commit 7b3996e6ca7a · 2012-11-26T07:51:32.000-08:00
set_cmap should not require an active image
diff --git a/CHANGELOG b/CHANGELOG
@@ -1,3 +1,7 @@
+2012-11-16 plt.set_cmap no longer throws errors if there is not already
+           an active colorable artist, such as an image, and just sets
+           up the colormap to use from that point forward. - PI
+
 2012-11-13 Add a symmetric log normalization class to colors.py.
            Also added some tests for the normalization class.
            Till Stensitzki
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -2027,8 +2027,6 @@ def set_cmap(cmap):
 
     if im is not None:
         im.set_cmap(cmap)
-    else:
-        raise RuntimeError('You must first define an image, eg with imshow')
 
     draw_if_interactive()
 
