Method ExtractZeroCellGrid

Filters/ParallelGeometry/vtkPDistributedDataFilter.cxx:2510–2532

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

//------------------------------------------------------------------------------
vtkUnstructuredGrid* vtkPDistributedDataFilter::ExtractZeroCellGrid(vtkDataSet* in)
{
  TimeLog timer("ExtractZeroCellGrid", this->Timing);
  (void)timer;

  vtkDataSet* tmpInput = in->NewInstance();
  tmpInput->ShallowCopy(in);

  vtkExtractCells* extCells = vtkExtractCells::New();

  extCells->SetInputData(tmpInput);

  extCells->Update(); // extract no cells

  vtkUnstructuredGrid* keepGrid = vtkUnstructuredGrid::New();
  keepGrid->ShallowCopy(extCells->GetOutput());

  extCells->Delete();

  tmpInput->Delete();

  return keepGrid;
}

//------------------------------------------------------------------------------