Function StructuredExecute

Filters/Geometry/vtkMarkBoundaryFilter.cxx:777–824

Mark 3D structured grids

// Mark 3D structured grids
int StructuredExecute(vtkDataSet* input, const unsigned char* ghosts, unsigned char* bPoints,
  unsigned char* bCells, vtkIdType* bFaces, vtkMarkBoundaryFilter* self)
{
  vtkIdType numCells = input->GetNumberOfCells();

  // Setup processing
  vtkIdType ext[6];
  int* tmpext;
  switch (input->GetDataObjectType())
  {
    case VTK_STRUCTURED_GRID:
    {
      vtkStructuredGrid* grid = vtkStructuredGrid::SafeDownCast(input);
      tmpext = grid->GetExtent();
      break;
    }
    case VTK_RECTILINEAR_GRID:
    {
      vtkRectilinearGrid* grid = vtkRectilinearGrid::SafeDownCast(input);
      tmpext = grid->GetExtent();
      break;
    }
    case VTK_UNIFORM_GRID:
    case VTK_STRUCTURED_POINTS:
    case VTK_IMAGE_DATA:
    {
      vtkImageData* image = vtkImageData::SafeDownCast(input);
      tmpext = image->GetExtent();
      break;
    }
    default:
      return 0;
  }

  // Update the extent
  ext[0] = tmpext[0];
  ext[1] = tmpext[1];
  ext[2] = tmpext[2];
  ext[3] = tmpext[3];
  ext[4] = tmpext[4];
  ext[5] = tmpext[5];

  // Perform the threaded boundary marking.
  MarkStructured mark(input, ext, ghosts, bPoints, bCells, bFaces, self);
  vtkSMPTools::For(0, numCells, mark);

  return 1;
}

// Process general datasets
struct MarkDataSet : MarkCellBoundary