ENH : add stale flag to PathCollection

tacaswell · tacaswell · commit 1aaae204ed86 · 2015-05-25T00:50:35.000-04:00
diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
@@ -825,9 +825,11 @@ def __init__(self, paths, sizes=None, **kwargs):
         Collection.__init__(self, **kwargs)
         self.set_paths(paths)
         self.set_sizes(sizes)
+        self.stale = True
 
     def set_paths(self, paths):
         self._paths = paths
+        self.stale = True
 
     def get_paths(self):
         return self._paths
