Merge pull request matplotlib#2915 from simongibbons/master

Consistency of the radius argument for Path.points_in_path

Author: tacaswell

lib/matplotlib/tests/test_path.py

@@ -27,6 +27,13 @@ def test_point_in_path():
 
     assert np.all(path.contains_points(points) == [True, False])
 
+def test_contains_points_negative_radius():
+    path = Path.unit_circle()
+
+    points = [(0.0, 0.0), (1.25, 0.0), (0.9, 0.9)]
+    expected = [True, False, False]
+
+    assert np.all(path.contains_points(points, radius=-0.5) == expected)
 
 if __name__ == '__main__':
     import nose

src/_path.cpp

@@ -288,7 +288,7 @@ points_in_path(const void* const points, const size_t s0,
     no_nans_t no_nans_path(trans_path, true, path.has_curves());
     curve_t curved_path(no_nans_path);
     contour_t contoured_path(curved_path);
-    contoured_path.width(fabs(r));
+    contoured_path.width(r);
     point_in_path_impl(points, s0, s1, n, contoured_path, result);
 }