Hi,
I figured using a PVD file does the job, for example
<VTKFile type="Collection" version="1.0" byte_order="LittleEndian"
header_type="UInt64">
<Collection>
<DataSet part="0" file="sphere_0.vtu"/>
<DataSet part="1" file="sphere_1.vtu"/>
<DataSet part="2" file="sphere_2.vtu"/>
<DataSet part="3" file="sphere_3.vtu"/>
<DataSet part="4" file="sphere_4.vtu"/>
<DataSet part="5" file="sphere_5.vtu"/>
<DataSet part="6" file="sphere_6.vtu"/>
<DataSet part="7" file="sphere_7.vtu"/>
</Collection>
</VTKFile>
I’m still interested in getting .pvtu files to work though, if anyone has an
idea of how to get it to work with polyhedral cells…
Best,
Vincent
From: "<Le Chenadec>", Vincent Le Chenadec
<[email protected]<mailto:[email protected]>>
Date: Monday, January 5, 2015 at 2:40 PM
To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Subject: Parallel XML VTK with arbitrary polyhedra
Hi there,
I’m attempting to write a parallel XML file to source unstructured data to read
in Paraview (written from an in-house fortran CFD code). Everything works out
of the box when I use zoo elements (hexahedra, tetrahedra, …), not so when
using arbitrary polyhedra.
I’m attaching a sample test (a sphere discretized on a 16x16x16 lattice, see
sphere1.png). The .vtu files I dump seem to be valid, for the external
boundaries are displayed accurately when visualizing them separately (see
attached sphere2.png to see the partitioning).
When loading the .pvtu file, however, the external boundary considers only the
zoo elements (hex only, in this case), not the polyhedral cells. Paraview also
crashes whenever I apply a filter, which suggests I’m doing something wrong.
I’m most likely missing something in the .pvtu file? I tried a few things, e.g.
adding a <PCells/> element where with <PDataArray/>’s referencing the faces and
faceoffsets arrays specific to polyhedral cells, but no success so far… Any
input is much welcome at this point!
Thanks,
Vincent
PS: I’m using the 4.2.0 built of Paraview. The ASCII .vtu and .pvtu files I use
are attached in a tarball.
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