Merge pull request matplotlib#3613 from demotu/master

efiring · tacaswell · commit 86f9f9c50f05 · 2014-10-04T22:33:46.000-04:00
Fix problem with legend if data has NaN's [backport to 1.4.x]
diff --git a/lib/matplotlib/transforms.py b/lib/matplotlib/transforms.py
@@ -648,10 +648,11 @@ def count_contains(self, vertices):
             return 0
         vertices = np.asarray(vertices)
         x0, y0, x1, y1 = self._get_extents()
-        dx0 = np.sign(vertices[:, 0] - x0)
-        dy0 = np.sign(vertices[:, 1] - y0)
-        dx1 = np.sign(vertices[:, 0] - x1)
-        dy1 = np.sign(vertices[:, 1] - y1)
+        with np.errstate(invalid='ignore'):
+            dx0 = np.sign(vertices[:, 0] - x0)
+            dy0 = np.sign(vertices[:, 1] - y0)
+            dx1 = np.sign(vertices[:, 0] - x1)
+            dy1 = np.sign(vertices[:, 1] - y1)
         inside = ((abs(dx0 + dx1) + abs(dy0 + dy1)) == 0)
         return np.sum(inside)
 
