Method ClipVolume

Filters/General/vtkClipDataSet.cxx:734–770

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//------------------------------------------------------------------------------
void vtkClipDataSet::ClipVolume(vtkDataSet* input, vtkUnstructuredGrid* output)
{
  vtkClipVolume* clipVolume = vtkClipVolume::New();

  clipVolume->AddObserver(vtkCommand::ProgressEvent, this->InternalProgressObserver);

  // We cannot set the input directly.  This messes up the partitioning.
  // output->UpdateNumberOfPieces gets set to 1.
  vtkImageData* tmp = vtkImageData::New();
  tmp->ShallowCopy(vtkImageData::SafeDownCast(input));

  clipVolume->SetInputData(tmp);
  double value = 0.0;
  if (this->UseValueAsOffset || !this->ClipFunction)
  {
    value = this->Value;
  }
  clipVolume->SetValue(value);
  clipVolume->SetInsideOut(this->InsideOut);
  clipVolume->SetClipFunction(this->ClipFunction);
  clipVolume->SetGenerateClipScalars(this->GenerateClipScalars);
  clipVolume->SetGenerateClippedOutput(this->GenerateClippedOutput);
  clipVolume->SetMergeTolerance(this->MergeTolerance);
  clipVolume->SetDebug(this->Debug);
  clipVolume->SetInputArrayToProcess(0, this->GetInputArrayInformation(0));
  clipVolume->SetContainerAlgorithm(this);
  clipVolume->Update();

  clipVolume->RemoveObserver(this->InternalProgressObserver);
  vtkUnstructuredGrid* clipOutput = clipVolume->GetOutput();

  output->CopyStructure(clipOutput);
  output->GetPointData()->ShallowCopy(clipOutput->GetPointData());
  output->GetCellData()->ShallowCopy(clipOutput->GetCellData());
  clipVolume->Delete();
  tmp->Delete();
}

//------------------------------------------------------------------------------
int vtkClipDataSet::FillInputPortInformation(int, vtkInformation* info)