Fix problem writing out meshes

mdboom · mdboom · commit 50508afb0009 · 2013-05-13T15:27:57.000-04:00
diff --git a/lib/matplotlib/backends/backend_pdf.py b/lib/matplotlib/backends/backend_pdf.py
@@ -1537,6 +1537,8 @@ def draw_path_collection(self, gc, master_transform, paths, all_transforms,
         # stroke (and the amount of alpha for each) is the same for
         # all of them
         can_do_optimization = True
+        facecolors = np.asarray(facecolors)
+        edgecolors = np.asarray(edgecolors)
 
         if not len(facecolors):
             filled = False
