Method ExtractImageData

Filters/ParallelImaging/vtkExtractPiece.cxx:134–160

=============================================================================

//=============================================================================
void vtkExtractPiece::ExtractImageData(vtkImageData* imageData, vtkCompositeDataSet* output,
  int piece, int numberOfPieces, int ghostLevel, vtkCompositeDataIterator* iter)
{
  int ext[6];

  vtkImageClip* extractID = vtkImageClip::New();
  extractID->ClipDataOn();
  imageData->GetExtent(ext);

  vtkExtentTranslator* translate = vtkExtentTranslator::New();
  translate->SetPiece(piece);
  translate->SetNumberOfPieces(numberOfPieces);
  translate->SetGhostLevel(ghostLevel);
  translate->SetWholeExtent(ext);
  translate->PieceToExtent();
  translate->GetExtent(ext);

  extractID->SetInputData(imageData);
  extractID->SetOutputWholeExtent(ext);
  extractID->UpdateExtent(ext);
  vtkImageData* extractOutput = vtkImageData::New();
  extractOutput->ShallowCopy(extractID->GetOutput());
  output->SetDataSet(iter, extractOutput);
  extractID->Delete();
  translate->Delete();
  extractOutput->Delete();
}

//=============================================================================
void vtkExtractPiece::ExtractPolyData(vtkPolyData* polyData, vtkCompositeDataSet* output, int piece,