add LineCollection.set_alpha

rcomer · rcomer · commit 655f243f40f9 · 2022-12-31T10:14:28.000Z
diff --git a/lib/matplotlib/collections.py b/lib/matplotlib/collections.py
@@ -830,8 +830,6 @@ def set_alpha(self, alpha):
         artist.Artist._set_alpha_for_array(self, alpha)
         self._set_facecolor(self._original_facecolor)
         self._set_edgecolor(self._original_edgecolor)
-        if self._gapcolor is not None:
-            self.set_gapcolor(self._original_gapcolor)
 
     set_alpha.__doc__ = artist.Artist._set_alpha_for_array.__doc__
 
@@ -1474,6 +1472,11 @@ def _get_default_edgecolor(self):
     def _get_default_facecolor(self):
         return 'none'
 
+    def set_alpha(self, alpha):
+        # docstring inherited
+        super().set_alpha(alpha)
+        self.set_gapcolor(self._original_gapcolor)
+
     def set_color(self, c):
         """
         Set the edgecolor(s) of the LineCollection.
