Merge pull request #5230 from mdboom/numpy1-10-compat

tacaswell · tacaswell · commit 3528105c3345 · 2015-10-12T19:24:45.000-04:00
Fix: casting bug in streamplot
diff --git a/lib/matplotlib/streamplot.py b/lib/matplotlib/streamplot.py
@@ -136,7 +136,7 @@ def streamplot(axes, x, y, u, v, density=1, linewidth=None, color=None,
         # Convert start_points from data to array coords
         # Shift the seed points from the bottom left of the data so that
         # data2grid works properly.
-        sp2 = np.asanyarray(start_points).copy()
+        sp2 = np.asanyarray(start_points, dtype=np.float).copy()
         sp2[:, 0] += np.abs(x[0])
         sp2[:, 1] += np.abs(y[0])
         for xs, ys in sp2:
