drawing images respect zorder among images even for noncomposite backend

leejjoon · leejjoon · commit 87097cf4c7d7 · 2009-11-11T23:59:23.000Z
svn path=/trunk/matplotlib/; revision=7951
diff --git a/lib/matplotlib/axes.py b/lib/matplotlib/axes.py
@@ -1727,9 +1727,12 @@ def draw(self, renderer=None, inframe=False):
             # make a composite image blending alpha
             # list of (mimage.Image, ox, oy)
 
+            zorder_images = [(im.zorder, im) for im in self.images \
+                             if im.get_visible()]
+            zorder_images.sort()
+            
             mag = renderer.get_image_magnification()
-            ims = [(im.make_image(mag),0,0)
-                   for im in self.images if im.get_visible()]
+            ims = [(im.make_image(mag),0,0) for z,im in zorder_images]
 
 
             l, b, r, t = self.bbox.extents
