SF.net SVN: matplotlib: [4667] trunk/matplotlib/lib/matplotlib/image.py

[<md...@us...>]

Revision: 4667
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=4667&view=rev
Author:   mdboom
Date:     2007-12-07 11:05:11 -0800 (Fri, 07 Dec 2007)

Log Message:
-----------
[ 1697287 ] imshow on log axes broken if axes limits != image extent
Adds a warning when an image is used on non-linear axes.  Doesn't
really address the problem (see bug report for the reason.)

Modified Paths:
--------------
    trunk/matplotlib/lib/matplotlib/image.py

Modified: trunk/matplotlib/lib/matplotlib/image.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/image.py	2007-12-07 18:22:30 UTC (rev 4666)
+++ trunk/matplotlib/lib/matplotlib/image.py	2007-12-07 19:05:11 UTC (rev 4667)
@@ -4,7 +4,7 @@
 
 """
 from __future__ import division
-import sys, os
+import sys, os, warnings
 
 import numpy as npy
 
@@ -185,6 +185,9 @@
 
     def draw(self, renderer, *args, **kwargs):
         if not self.get_visible(): return
+        if (self.axes.get_xscale() != 'linear' or
+            self.axes.get_yscale() != 'linear'):
+            warnings.warn("Images are not supported on non-linear axes.")
         im = self.make_image(renderer.get_image_magnification())
         l, b, widthDisplay, heightDisplay = self.axes.bbox.get_bounds()
         renderer.draw_image(l, b, im, self.axes.bbox)


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