mesh slicing script for vis

[shimwell]

To get the mesh tally results it would be useful to have a script that can load a vtk and take slices

DAGMC viz could be a solution but I believe this is python 2 and Visit code.

Perhaps a solution based on the well supported vtk python package would be ideal. vtk is already in the dependency stack and has examples here https://kitware.github.io/vtk-examples/site/Python/

[shimwell]

This script might be useful as well, it reads a h5 file and outputs vtk https://gist.github.com/pshriwise/da30da3daf08594dddf1a58b9f10dcc8

[shimwell]

this one might also be useful, it reads vtk files https://kitware.github.io/vtk-examples/site/Python/IO/ReadUnstructuredGrid/