[Paraview] Bug in PLOT3D meta reader

[kenichiro yoshimi]

Hello Eric,

If the number of blocks in dataset decreases over time steps then
vtkMultiBlockPLOT3DReader seems to fail to count it. For your
information, I tried commenting out the line 822 in
ParaView-v5.4.0/VTK/IO/Parallel/vtkMultiBlockPLOT3DReader.cxx and this
worked with your data.
-----
  if ( numGrid > (int)this->Internal->Dimensions.size() )
  {
    this->Internal->Dimensions.resize(numGrid);
  }

=>

  //if ( numGrid > (int)this->Internal->Dimensions.size() )
  {
    this->Internal->Dimensions.resize(numGrid);
  }
-----

Thanks,
yoshimi

2017-08-02 2:16 GMT+09:00 Eric Lynch <eric.lynch at gmail.com>:
> I believe there is a bug in the PLOT3D metafile reader.  I've attached two
> PLOT3D meshes and a metafile.  Version 5.4.1 appears to read the metafile
> successfully.  After reading it, I can see the outline of the two blocks in
> the first mesh file.  If I advance to the next time step, I can see the
> outline of the three blocks in the second mesh.  If I then go back to the
> previous time step, I get an error message saying:
>
>
>
> ERROR: In
> /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release_superbuild/build/superbuild/paraview/src/VTK/IO/Parallel/vtkMultiBlockPLOT3DReader.cxx,
> line 1397 vtkMPIMultiBlockPLOT3DReader (0x6b53260): Encountered premature
> end-of-file while reading the geometry file (or the file is corrupt).
>
>
>
> ERROR: In
> /home/buildslave/dashboards/buildbot/paraview-pvbinsdash-linux-shared-release_superbuild/build/superbuild/paraview/src/VTK/Common/ExecutionModel/vtkExecutive.cxx,
> line 784 vtkCompositeDataPipeline (0x6946da0): Algorithm
> vtkMPIMultiBlockPLOT3DReader(0x6b53260) returned failure for request:
> vtkInformation (0x68935b0)
>
>   Debug: Off
>
>   Modified Time: 982828
>
>   Reference Count: 1
>
>   Registered Events: (none)
>
>   Request: REQUEST_DATA
>
>   ALGORITHM_AFTER_FORWARD: 1
>
>   FROM_OUTPUT_PORT: 0
>
>   FORWARD_DIRECTION: 0
>
>
>
> To my knowledge, the last version without this bug was 4.3.1.
>
>
>
> Thanks,
>
> Eric
>
>
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