FIX: don't double transpose xy for add-lines colorbar

jklymak · jklymak · commit 34636bfe2b9f · 2021-11-20T08:41:50.000+01:00
diff --git a/lib/matplotlib/colorbar.py b/lib/matplotlib/colorbar.py
@@ -790,8 +790,6 @@ def add_lines(self, *args, **kwargs):
         xy[[2, 3], 1] += fac
         # back to axes units...
         xy = self.ax.transAxes.inverted().transform(inches.transform(xy))
-        if self.orientation == 'horizontal':
-            xy = xy.T
         col.set_clip_path(mpath.Path(xy, closed=True),
                           self.ax.transAxes)
         self.ax.add_collection(col)
