Function ExecuteDataSet

Filters/Geometry/vtkGeometryFilter.cxx:3543–3745

{
template <typename TInputIdType>
int ExecuteDataSet(vtkGeometryFilter* self, vtkDataSet* input, vtkPolyData* output,
  vtkExcludedFaces<TInputIdType>* exc)
{
  auto explicitSG = vtkExplicitStructuredGrid::SafeDownCast(input);
  if (explicitSG)
  {
    explicitSG->BuildLinks();
  }

  vtkIdType cellId;
  int i;
  vtkIdType numCells = input->GetNumberOfCells();
  double x[3];
  vtkIdType ptId;
  vtkPointData* inPD = input->GetPointData();
  vtkCellData* inCD = input->GetCellData();
  vtkPointData* outPD = output->GetPointData();
  vtkCellData* outCD = output->GetCellData();
  vtkNew<vtkAOSDataArrayTemplate<char>> cellVisArray;
  char* cellVis;
  unsigned char* cellGhosts = nullptr;
  unsigned char* pointGhosts = nullptr;

  vtkDebugWithObjectMacro(self, << "Executing geometry filter");

  if (inCD)
  {
    if (auto ghosts = inCD->GetGhostArray())
    {
      cellGhosts = ghosts->GetPointer(0);
    }
  }
  if (inPD)
  {
    if (auto ghosts = inPD->GetGhostArray())
    {
      pointGhosts = ghosts->GetPointer(0);
    }
  }

  auto cellClipping = self->GetCellClipping();
  auto cellMinimum = self->GetCellMinimum();
  auto cellMaximum = self->GetCellMaximum();
  auto pointClipping = self->GetPointClipping();
  auto pointMinimum = self->GetPointMinimum();
  auto pointMaximum = self->GetPointMaximum();
  auto extentClipping = self->GetExtentClipping();
  auto extent = self->GetExtent();
  // Determine nature of what we have to do
  if ((!cellClipping) && (!pointClipping) && (!extentClipping))
  {
    cellVis = nullptr;
  }
  else
  {
    cellVisArray->SetNumberOfValues(numCells);
    cellVis = cellVisArray->GetPointer(0);
  }