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Utkarsh Ayachit authored
Improved code to extract global temporal variables generated by exodus reader. * `vtkExodusIIReader` marks global temporal variables specially. This helps downstream filters recognize these arrays as such. * Deprecating `vtkExtractTemporalFieldData`, the filter is very exodus specific hence replacing it with `vtkExtractExodusGlobalTemporalVariables`. * `vtkExtractExodusGlobalTemporalVariables` support extract global temporal arrays (similar to vtkExtractTemporalFieldData). Additionally, it can handle restart files (a concept supported in ParaView). Addresses paraview/paraview#17851 `extractGlobalTemporalVariables` doesn't test for restart files yet since VTK reader doesn't support restart files. We'll add a test in ParaView for the same.
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