FIX: fix FancyArrowPatch linestyle

tacaswell · tacaswell · commit daa9394f4ef8 · 2016-10-11T16:41:33.000-04:00
oversight when adding the dash-scaling Closes matplotlib#7224
diff --git a/lib/matplotlib/patches.py b/lib/matplotlib/patches.py
@@ -372,9 +372,8 @@ def set_linewidth(self, w):
         self._linewidth = float(w)
         # scale the dash pattern by the linewidth
         offset, ls = self._us_dashes
-        self._dashes = mlines._scale_dashes(offset,
-                                            ls,
-                                            self._linewidth)[1]
+        self._dashoffset, self._dashes = mlines._scale_dashes(
+            offset, ls, self._linewidth)
         self.stale = True
 
     def set_lw(self, lw):
@@ -417,9 +416,8 @@ def set_linestyle(self, ls):
         # get the unscalled dash pattern
         offset, ls = self._us_dashes = mlines._get_dash_pattern(ls)
         # scale the dash pattern by the linewidth
-        self._dashes = mlines._scale_dashes(offset,
-                                            ls,
-                                            self._linewidth)[1]
+        self._dashoffset, self._dashes = mlines._scale_dashes(
+            offset, ls, self._linewidth)
         self.stale = True
 
     def set_ls(self, ls):
@@ -4271,7 +4269,7 @@ def draw(self, renderer):
         if self._edgecolor[3] == 0:
             lw = 0
         gc.set_linewidth(lw)
-        gc.set_linestyle(self._linestyle)
+        gc.set_dashes(self._dashoffset, self._dashes)
 
         gc.set_antialiased(self._antialiased)
         self._set_gc_clip(gc)
diff --git a/lib/matplotlib/tests/baseline_images/test_arrow_patches/fancyarrow_dash.png b/lib/matplotlib/tests/baseline_images/test_arrow_patches/fancyarrow_dash.png
diff --git a/lib/matplotlib/tests/test_arrow_patches.py b/lib/matplotlib/tests/test_arrow_patches.py
@@ -97,6 +97,32 @@ def test_fancyarrow_dpi_cor_200dpi():
     __prepare_fancyarrow_dpi_cor_test()
 
 
+@image_comparison(baseline_images=['fancyarrow_dash'],
+                  remove_text=True, extensions=['png'],
+                  style='default')
+def test_fancyarrow_dash():
+    from matplotlib.patches import FancyArrowPatch
+    fig, ax = plt.subplots()
+
+    e = FancyArrowPatch((0, 0), (0.5, 0.5),
+                        arrowstyle='-|>',
+                        connectionstyle='angle3,angleA=0,angleB=90',
+                        mutation_scale=10.0,
+                        linewidth=2,
+                        linestyle='dashed',
+                        color='k')
+
+    e2 = FancyArrowPatch((0, 0), (0.5, 0.5),
+                         arrowstyle='-|>',
+                         connectionstyle='angle3',
+                         mutation_scale=10.0,
+                         linewidth=2,
+                         linestyle='dotted',
+                         color='k')
+    ax.add_patch(e)
+    ax.add_patch(e2)
+
+
 if __name__ == '__main__':
     import nose
     nose.runmodule(argv=['-s', '--with-doctest'], exit=False)
