I have a simulation which produces a bunch of vtu (also pvtu) and vti (also pvti) files which, as I understand, represent the configuration of points in one timestamp. But is there a way to group them into one close-to-vtk file to be able to visualize a simulation, which consists of many timestamps, in an app like paraview (but not only)?
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Ali_Sh
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Vyacheslav Siniy
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see: [https://stackoverflow.com/a/69889294/13394817](https://stackoverflow.com/a/69889294/13394817) – Ali_Sh Nov 11 '21 at 12:56
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ParaView can natively open many files as a time series, see the doc.
If your file names contains a number, the ParaView "open file" dialog will collapse them under a dummy filename containing dots instead of number. Open it to open the whole series.
edit: conversion
To be close to the vtk format, you may use .pvd that is a ParaView format described here or the .series from VTK (doc here )
To read it with another software, well, you will need to check the supported file formats by the application you want to use. VTK can write several other formats, including Exodus, XDMF or CGNS for instance.
Ali_Sh
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Nico Vuaille
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But is it possible to do that without using tools of paraview? – Vyacheslav Siniy Jun 21 '21 at 13:02
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You can have a meta-file to descrive timesteps or use another fileformat. I updated my answer to add a conversion part – Nico Vuaille Jun 21 '21 at 13:57