MNT/FIX: add explicit stale=True in add_* methods

tacaswell · tacaswell · commit b69b2ee07081 · 2015-11-16T12:42:17.000-05:00
In the Axes.add_* methods explicitly set the axes as stale, because
there is a new child in the draw tree.  This was implicitly happening
for add_line (and may have been for others)
diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
@@ -1650,6 +1650,7 @@ def add_artist(self, a):
         self._set_artist_props(a)
         a.set_clip_path(self.patch)
         a._remove_method = lambda h: self.artists.remove(h)
+        self.stale = True
         return a
 
     def add_collection(self, collection, autolim=True):
@@ -1672,6 +1673,7 @@ def add_collection(self, collection, autolim=True):
             self.update_datalim(collection.get_datalim(self.transData))
 
         collection._remove_method = lambda h: self.collections.remove(h)
+        self.stale = True
         return collection
 
     def add_image(self, image):
@@ -1683,6 +1685,7 @@ def add_image(self, image):
         self._set_artist_props(image)
         self.images.append(image)
         image._remove_method = lambda h: self.images.remove(h)
+        self.stale = True
         return image
 
     def add_line(self, line):
@@ -1701,6 +1704,7 @@ def add_line(self, line):
             line.set_label('_line%d' % len(self.lines))
         self.lines.append(line)
         line._remove_method = lambda h: self.lines.remove(h)
+        self.stale = True
         return line
 
     def _add_text(self, txt):
