[vtkusers] problem with multi-component arrays

[Dominik Szczerba]

Thanks for the hint, it seems to be the fix!

Dominik

On Thu, Feb 9, 2012 at 3:27 PM, David Doria <daviddoria at gmail.com> wrote:
> On Thu, Feb 9, 2012 at 9:26 AM, Dominik Szczerba <dominik at itis.ethz.ch> wrote:
>> I am doing something as simple as:
>>
>> nbs->SetName("MyName");
>> nbs->SetNumberOfComponents(NC);
>> nbs->SetNumberOfValues(NV);
>> output->GetCellData()->AddArray(nbs);
>> output->Squeeze();
>>
>> in my vtkUnstructuredGridAlgorithm class. I am not even filling it,
>> nor accessing it, just appending to output. It only works for NC=1,
>> anything more leads to crashes of the type listed below.
>> Looks like VTK has a problem with multicomponent arrays - or did I
>> miss something?
>>
>>
>> #0  0x00007ffff62b3430 in
>> vtkDataArrayTemplate<int>::ComputeVectorRange() () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkCommon.so.5.8
>> #1  0x00007ffff625cb19 in vtkDataArray::ComputeRange(int) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkCommon.so.5.8
>> #2  0x00007ffff6abadd7 in
>> vtkXMLWriter::WriteCellDataAppendedData(vtkCellData*, int,
>> OffsetsManagerGroup*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>> #3  0x00007ffff6aa53d5 in
>> vtkXMLUnstructuredDataWriter::WriteAppendedPieceData(int) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>> #4  0x00007ffff6aacbb7 in
>> vtkXMLUnstructuredGridWriter::WriteAppendedPieceData(int) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>> #5  0x00007ffff6aa3f52 in vtkXMLUnstructuredDataWriter::WriteAPiece()
>> () from /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>> #6  0x00007ffff6aa3eac in
>> vtkXMLUnstructuredDataWriter::ProcessRequest(vtkInformation*,
>> vtkInformationVector**, vtkInformationVector*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>> #7  0x00007ffff56e3004 in vtkExecutive::CallAlgorithm(vtkInformation*,
>> int, vtkInformationVector**, vtkInformationVector*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #8  0x00007ffff56d68ac in
>> vtkDemandDrivenPipeline::ExecuteData(vtkInformation*,
>> vtkInformationVector**, vtkInformationVector*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #9  0x00007ffff56d98cd in
>> vtkDemandDrivenPipeline::ProcessRequest(vtkInformation*,
>> vtkInformationVector**, vtkInformationVector*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #10 0x00007ffff584d28c in
>> vtkStreamingDemandDrivenPipeline::ProcessRequest(vtkInformation*,
>> vtkInformationVector**, vtkInformationVector*) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #11 0x00007ffff56d83f7 in vtkDemandDrivenPipeline::UpdateData(int) ()
>> from /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #12 0x00007ffff584ea95 in
>> vtkStreamingDemandDrivenPipeline::Update(int) () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkFiltering.so.5.8
>> #13 0x00007ffff6ab6cec in vtkXMLWriter::Write() () from
>> /home/dsz/build/vtk-5.8.0/bin/libvtkIO.so.5.8
>
> Try SetNumberOfTuples instead of SetNumberOfValues.
>
> David
>