SF.net SVN: matplotlib: [3710] trunk/matplotlib

[<ds...@us...>]

Revision: 3710
          http://matplotlib.svn.sourceforge.net/matplotlib/?rev=3710&view=rev
Author:   dsdale
Date:     2007-08-16 05:53:13 -0700 (Thu, 16 Aug 2007)

Log Message:
-----------
added set_extent method to AxesImage

Modified Paths:
--------------
    trunk/matplotlib/CHANGELOG
    trunk/matplotlib/examples/embedding_in_qt4.py
    trunk/matplotlib/lib/matplotlib/image.py

Modified: trunk/matplotlib/CHANGELOG
===================================================================
--- trunk/matplotlib/CHANGELOG	2007-08-14 14:13:27 UTC (rev 3709)
+++ trunk/matplotlib/CHANGELOG	2007-08-16 12:53:13 UTC (rev 3710)
@@ -1,3 +1,6 @@
+2007-08-16 Added a set_extent method to AxesImage, allow data extent
+           to be modified after initial call to imshow - DSD
+
 2007-08-14 Fixed a bug in pyqt4 subplots-adjust. Thanks to 
            Xavier Gnata for the report and suggested fix - DSD
 

Modified: trunk/matplotlib/examples/embedding_in_qt4.py
===================================================================
--- trunk/matplotlib/examples/embedding_in_qt4.py	2007-08-14 14:13:27 UTC (rev 3709)
+++ trunk/matplotlib/examples/embedding_in_qt4.py	2007-08-16 12:53:13 UTC (rev 3710)
@@ -64,11 +64,13 @@
 
     def compute_initial_figure(self):
          self.axes.plot([0, 1, 2, 3], [1, 2, 0, 4], 'r')
+         self.axes.set_yscale('log')
 
     def update_figure(self):
         # Build a list of 4 random integers between 0 and 10 (both inclusive)
         l = [ random.randint(0, 10) for i in xrange(4) ]
 
+        l[l<=0]=1
         self.axes.plot([0, 1, 2, 3], l, 'r')
         self.draw()
 

Modified: trunk/matplotlib/lib/matplotlib/image.py
===================================================================
--- trunk/matplotlib/lib/matplotlib/image.py	2007-08-14 14:13:27 UTC (rev 3709)
+++ trunk/matplotlib/lib/matplotlib/image.py	2007-08-16 12:53:13 UTC (rev 3710)
@@ -236,6 +236,18 @@
         # by mistake.
 
         self.set_data(A)
+    
+    def set_extent(self, extent):
+        """extent is data axes (left, right, bottom, top) for making image plots
+        """
+        self._extent = extent
+        
+        xmin, xmax, ymin, ymax = extent
+        corners = (xmin, ymin), (xmax, ymax)
+        self.axes.update_datalim(corners)
+        if self.axes._autoscaleon:
+            self.axes.set_xlim((xmin, xmax))
+            self.axes.set_ylim((ymin, ymax))
 
     def get_interpolation(self):
         """


This was sent by the SourceForge.net collaborative development platform, the world's largest Open Source development site.