fix(serializer): Better handling of actor user matrix

[user27182]

Resolves #50

[jourdain]

trame_vtk/modules/vtk/serializers/actors.py:3:1: F401 'vtkmodules.vtkCommonMath.vtkMatrix4x4' imported but unused

[jourdain]

FYI, the new version of PyVista is changing its initial camera point of view? That led me to update a baseline. But both local and remote are consistent so I feel confident.

But, the local rendering of volume rendering is now broken with PyVista. (FYI @banesullivan, @alesgenova)

[banesullivan]

new version of PyVista is changing its initial camera point of view

I'm not aware of this... and I hope not the case. Not sure what you are referring to.

[jourdain]

New PyVista

vs old PyVista

[user27182]

New PyVista vs old PyVista

@jourdain Can you please clarify which versions of old and new you are referring to?

A bug with the orientation/direction of pyvista.Sphere was recently patched and released in PyVista 0.42, I believe, with PR pyvista#4674. This resulted in scalar values being plotted differently for pyvista.Sphere objects, and similar regression test images had to be updated accordingly. The changes are shared below (see direct link here).

Perhaps this is the same cause of the differences you're seeing with the trame PyVista tests? Though in your image the spheres appear to be mirrored, whereas the image below looks more like a 90 degree rotation.

[jourdain]

When running python ./examples/validation/PyVistaInt64.py with

vtk                  9.2.6
pyvista              0.40.1

I get

Then with pyvista==0.42.3, I get

[jourdain]

Just had to update our test baseline