Method AllocateOutputData

Filters/Extraction/vtkExtractDataOverTime.cxx:143–182

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
int vtkExtractDataOverTime::AllocateOutputData(vtkPointSet* input, vtkPointSet* output)
{
  // by default vtkPointSetAlgorithm::RequestDataObject already
  // created an output of the same type as the input
  if (!output)
  {
    vtkErrorMacro("Output not created as expected!");
    return 0;
  }

  // 1st the points
  vtkPoints* points = output->GetPoints();
  if (!points)
  {
    points = vtkPoints::New();
    output->SetPoints(points);
    points->Delete();
  }
  points->SetNumberOfPoints(this->NumberOfTimeSteps);

  // now the point data
  output->GetPointData()->CopyAllocate(input->GetPointData(), this->NumberOfTimeSteps);

  // and finally add an array to hold the time at each step
  vtkDoubleArray* timeArray = vtkDoubleArray::New();
  timeArray->SetNumberOfComponents(1);
  timeArray->SetNumberOfTuples(this->NumberOfTimeSteps);
  if (input->GetPointData()->GetArray("Time"))
  {
    timeArray->SetName("TimeData");
  }
  else
  {
    timeArray->SetName("Time");
  }
  output->GetPointData()->AddArray(timeArray);
  timeArray->Delete();

  return 1;
}
VTK_ABI_NAMESPACE_END