Fix faulty test, fix wrong Affine2D call.

Tillsten · Tillsten · commit 3f26a2f47c65 · 2020-04-17T15:49:00.000+02:00
diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -221,7 +221,7 @@ def draw_path_collection(self, gc, master_transform, paths, all_transforms,
         behavior of :meth:`draw_path_collection` can be made globally.
         """
         path_ids = [
-            (path, transforms.Affine2D(transform))
+            (path, transforms.Affine2D(transform.get_matrix()))
             for path, transform in self._iter_collection_raw_paths(
                     master_transform, paths, all_transforms)]
 
diff --git a/lib/matplotlib/tests/test_backend_bases.py b/lib/matplotlib/tests/test_backend_bases.py
@@ -14,7 +14,7 @@
 def test_uses_per_path():
     id = transforms.Affine2D()
     paths = [path.Path.unit_regular_polygon(i) for i in range(3, 7)]
-    tforms = [id.rotate(i) for i in range(1, 5)]
+    tforms = [id.rotate(i).get_matrix().copy() for i in range(1, 5)]
     offsets = np.arange(20).reshape((10, 2))
     facecolors = ['red', 'green']
     edgecolors = ['red', 'green']
