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

[Utkarsh Ayachit]

I'd suggest using the trace functionality to figure out how to set
parameters on filter of interest.

In this case, to exact timestep 1 using ExtractTimeSteps filter, the
correct approach is as follows:

extractTimeSteps1 = ExtractTimeSteps(Input=Reader)
extractTimeSteps1.TimeStepIndices = [1]

OR

extractTimeSteps1 = ExtractTimeSteps(Input=Reader, TimeStepIndices = [1])


Utkarsh

On Mon, Feb 26, 2018 at 5:29 AM, Amine Aboufirass
<Amine.Aboufirass at deltares.nl> wrote:
> 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
>
>
>
> DISCLAIMER: This message is intended exclusively for the addressee(s) and
> may contain confidential and privileged information. If you are not the
> intended recipient please notify the sender immediately and destroy this
> message. Unauthorized use, disclosure or copying of this message is strictly
> prohibited. The foundation 'Stichting Deltares', which has its seat at
> Delft, The Netherlands, Commercial Registration Number 41146461, is not
> liable in any way whatsoever for consequences and/or damages resulting from
> the improper, incomplete and untimely dispatch, receipt and/or content of
> this e-mail.
>
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the ParaView Wiki at:
> http://paraview.org/Wiki/ParaView
>
> Search the list archives at: http://markmail.org/search/?q=ParaView
>
> Follow this link to subscribe/unsubscribe:
> https://public.kitware.com/mailman/listinfo/paraview
>