Function ApplyMask

Filters/General/vtkAxisAlignedTransformFilter.cxx:496–537

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//------------------------------------------------------------------------------
void ApplyMask(vtkHyperTree* input, vtkHyperTree* output, vtkIdType inputIndex,
  vtkIdType outputIndex, const std::vector<unsigned int>& permutation,
  vtkHyperTreeGridNonOrientedCursor* cursorInput, vtkHyperTreeGridNonOrientedCursor* cursorOutput)
{
  auto returnRecursion = [cursorInput, cursorOutput]()
  {
    if (!cursorInput->IsRoot())
    {
      cursorInput->ToParent();
      cursorOutput->ToParent();
    }
  };

  if (cursorInput->IsMasked())
  {
    cursorOutput->SetMask(true);
    returnRecursion();
    return;
  }

  if (cursorInput->IsLeaf())
  {
    returnRecursion();
    return;
  }

  vtkIdType inputBase = input->GetElderChildIndex(inputIndex);
  vtkIdType outputBase = output->GetElderChildIndex(outputIndex);

  size_t nChildren = permutation.size();
  for (size_t i = 0; i < nChildren; ++i)
  {
    vtkIdType inputChildIndex = inputBase + permutation[i];
    vtkIdType outputChildIndex = outputBase + i;
    cursorInput->ToChild(permutation[i]);
    cursorOutput->ToChild(static_cast<unsigned char>(i));

    ApplyMask(
      input, output, inputChildIndex, outputChildIndex, permutation, cursorInput, cursorOutput);
  }
  returnRecursion();
}

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void CopyRotatedDataHTG(vtkHyperTree* input, vtkHyperTree* output, vtkHyperTreeGrid* inputHTG,