[Paraview] extract specific time steps from unstructured grid timeseries using paraview

[Amine Aboufirass]

Hello,

I have scalar data in a time series of unstructured grid datasets. I'd like to extract this data for specific timesteps. I tried the following but only seem to get the information for the very first time step:


AllFiles = ['File001.vtk', 'File002.vtk', 'File003.vtk', 'File004.vtk']
Reader = LegacyVTKReader(FileNames = AllFiles)
Reader = ExtractTimeSteps(Reader,1)

Output = servermanager.Fetch(Reader)
Results = vtk_to_numpy(Output.GetPointData().GetScalars('inc remental_deviatoric_strain_solid'))

I also tried:

Reader = ExtractTimeSteps(Reader,1)

But it throws an error:

Reader = ExtractTimeSteps(Reader,1)
File "C:\Program Files\ParaView 5.2.0-Qt4-OpenGL2-Windows-64bit\bin\Lib\site-packages\paraview\simple.py", line 1674, in CreateObject
raise RuntimeError ("Expecting a proxy as input.")
RuntimeError: Expecting a proxy as input.

How can I pick the time step for which I want the data? Also is it possible to specify a range of time steps?

Amine Aboufirass

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