fix transformation matrix

src/ansys/mechanical/core/embedding/viz/pyvista_plotter.py

@@ -36,7 +36,15 @@
 
 
 def _transform_to_pyvista(transform):
-    return np.array([transform[i] for i in range(16)]).reshape(4, 4).transpose()
+    np_transform = np.array([transform[i] for i in range(16)]).reshape(4, 4)
+    # There's a bug in mechanical, the scenegraph wrappers use theMatrix4D
+    # type, which puts the tranformations in the transposed location relative
+    # to pyvista. But they use the same matrix layout as pyvista, so that
+    # doesn't conform to the expectations of Matrix4D. When it is fixed there,
+    # the below line has to be uncommented
+
+    # np_transform = np_transform.transpose()
+    return np_transform
 
 
 def _reshape_3cols(arr: np.array, name: str):