Unable to perform clipping or cell selection for unstructured meshes loaded by a vtkPythonAlgorithm-based reader
Using the meshio library, I recently created a vtkPythonAlgorithm-based plugin allowing reading many additional mesh formats (GMSH, Abaqus, MED, ...), see meshioReader but also #19411.
Following PythonAlgorithmExamples.py, I essentially implemented a RequestData method that generates a vtkUnstructuredGrid output.
However, it seems that cell operations can not be properly performed on the mesh.
- Clipping or plotting over line leads to ParaView crash
- Cell selection is erroneous
What am I missing? Do I need to implement more methods for those cell operations to work. Thanks.
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