Method ProcessTrees

Filters/HyperTree/vtkHyperTreeGridFeatureEdges.cxx:58–107

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//------------------------------------------------------------------------------
int vtkHyperTreeGridFeatureEdges::ProcessTrees(vtkHyperTreeGrid* input, vtkDataObject* outputDO)
{
  vtkPolyData* output = vtkPolyData::SafeDownCast(outputDO);
  if (!output)
  {
    vtkErrorMacro("Incorrect type of output: " << outputDO->GetClassName());
    return 0;
  }

  this->InData = input->GetCellData();
  this->OutData = output->GetCellData();
  this->OutData->CopyAllocate(this->InData);

  vtkNew<vtkPoints> outPoints;
  vtkNew<vtkCellArray> outCells;

  if (this->MergePoints)
  {
    this->Locator = vtkSmartPointer<vtkMergePoints>::New();
    this->Locator->InitPointInsertion(outPoints, input->GetBounds());
  }
  else
  {
    this->Locator = nullptr;
  }

  // Create a custom internal class depending on the dimension of the input HTG.
  switch (input->GetDimension())
  {
    case 1:
      this->OrientationAxe1D = input->GetOrientation();
      this->Process1DHTG(input, outPoints, outCells);
      break;
    case 2:
      this->OrientationAxes2D = ORIENTATION_AXES_2D[input->GetOrientation()];
      this->Process2DHTG(input, outPoints, outCells);
      break;
    case 3:
      this->Process3DHTG(input, outPoints, outCells);
      break;
    default:
      vtkErrorMacro("Incorrect dimension of input HTG: " << input->GetDimension());
      return 0;
  }

  output->SetPoints(outPoints);
  output->SetLines(outCells);

  return 1;
}

//----------------------------------------------------------------------------------------------
void vtkHyperTreeGridFeatureEdges::Process1DHTG(