Method set_alpha

lib/matplotlib/patches.py:485–491

(self, alpha)

        self.stale = True

    def set_alpha(self, alpha):
        # docstring inherited
        super().set_alpha(alpha)
        self._set_facecolor(self._original_facecolor)
        self._set_edgecolor(self._original_edgecolor)
        self._set_hatchcolor(self._original_hatchcolor)
        # stale is already True

    def set_linewidth(self, w):
        """