Fix fancy arrows

Author: mdboom

examples/pylab_examples/fancyarrow_demo.py

@@ -25,7 +25,7 @@ def to_texstring(s):
 for i, (stylename, styleclass) in enumerate(sorted(styles.items())):
     x = 3.2 + (i//nrow)*4
     y = (figheight - 0.7 - i % nrow)  # /figheight
-    p = mpatches.Circle((x, y), 0.2, fc="w")
+    p = mpatches.Circle((x, y), 0.2)
     ax.add_patch(p)
 
     ax.annotate(to_texstring(stylename), (x, y),
@@ -37,7 +37,7 @@ def to_texstring(s):
                                 patchB=p,
                                 shrinkA=5,
                                 shrinkB=5,
-                                fc="w", ec="k",
+                                fc="k", ec="k",
                                 connectionstyle="arc3,rad=-0.05",
                                 ),
                 bbox=dict(boxstyle="square", fc="w"))

lib/matplotlib/patches.py

@@ -1134,6 +1134,8 @@ class FancyArrow(Polygon):
     Like Arrow, but lets you set head width and head height independently.
     """
 
+    _edge_default = True
+
     def __str__(self):
         return "FancyArrow()"
 
@@ -2465,6 +2467,7 @@ def __init__(self, xy, width, height,
 
         self._mutation_scale = mutation_scale
         self._mutation_aspect = mutation_aspect
+
         self.stale = True
 
     @docstring.dedent_interpd
@@ -3951,6 +3954,7 @@ class FancyArrowPatch(Patch):
     """
     A fancy arrow patch. It draws an arrow using the :class:ArrowStyle.
     """
+    _edge_default = True
 
     def __str__(self):