fix fancyarrowpatch-joinstyle

ImportanceOfBeingErnest · ImportanceOfBeingErnest · commit 330480062e14 · 2019-03-10T23:34:17.000+01:00
diff --git a/lib/matplotlib/patches.py b/lib/matplotlib/patches.py
@@ -4035,6 +4035,8 @@ def __init__(self, posA=None, posB=None,
                          ' and will be removed in Matplotlib 3.1'),
                 name='connector',
                 obj_type='keyword argument')
+        kwargs.setdefault("joinstyle", "round")
+        kwargs.setdefault("capstyle", "round")
         Patch.__init__(self, **kwargs)
 
         if posA is not None and posB is not None and path is None:
@@ -4284,9 +4286,7 @@ def draw(self, renderer):
         if not self.get_visible():
             return
 
-        # FancyArrowPatch has traditionally forced the capstyle and joinstyle.
-        with cbook._setattr_cm(self, _capstyle='round', _joinstyle='round'), \
-                self._bind_draw_path_function(renderer) as draw_path:
+        with self._bind_draw_path_function(renderer) as draw_path:
 
             # FIXME : dpi_cor is for the dpi-dependency of the linewidth. There
             # could be room for improvement.
