make sure fill values for shade array are within the correct range

jrjohansson · jrjohansson · commit 1d8c18b8eb0d · 2014-05-06T00:20:42.000+09:00
diff --git a/lib/mpl_toolkits/mplot3d/axes3d.py b/lib/mpl_toolkits/mplot3d/axes3d.py
@@ -1678,10 +1678,10 @@ def _shade_colors(self, color, normals):
                           if proj3d.mod(n) else np.nan
                           for n in normals])
         mask = ~np.isnan(shade)
-        shade[~mask] = 0
 
         if len(shade[mask]) > 0:
             norm = Normalize(min(shade[mask]), max(shade[mask]))
+            shade[~mask] = min(shade[mask])
             color = colorConverter.to_rgba_array(color)
             # shape of color should be (M, 4) (where M is number of faces)
             # shape of shade should be (M,)
