Merge pull request #5217 from mdboom/xkcd-broken

Fix: PathEffect rendering on some backends

lib/matplotlib/patheffects.py

@@ -98,6 +98,9 @@ def __init__(self, path_effects, renderer):
         self._path_effects = path_effects
         self._renderer = renderer
 
+    def new_gc(self):
+        return self._renderer.new_gc()
+
     def copy_with_path_effect(self, path_effects):
         return self.__class__(path_effects, self._renderer)
 

lib/matplotlib/tests/test_backend_ps.py

@@ -10,6 +10,7 @@
 
 import matplotlib
 import matplotlib.pyplot as plt
+from matplotlib import patheffects
 from matplotlib.testing.decorators import cleanup, knownfailureif
 
 
@@ -120,6 +121,17 @@ def test_composite_image():
         assert buff.count(six.b(' colorimage')) == 2
 
 
+@cleanup
+def test_patheffects():
+    with matplotlib.rc_context():
+        matplotlib.rcParams['path.effects'] = [
+            patheffects.withStroke(linewidth=4, foreground='w')]
+        fig, ax = plt.subplots()
+        ax.plot([1, 2, 3])
+        with io.BytesIO() as ps:
+            fig.savefig(ps, format='ps')
+
+
 if __name__ == '__main__':
     import nose
     nose.runmodule(argv=['-s', '--with-doctest'], exit=False)