Method ForwardAttributesToComposite

Filters/Temporal/vtkDataObjectMeshCache.cxx:512–551

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//------------------------------------------------------------------------------
void vtkDataObjectMeshCache::ForwardAttributesToComposite(
  vtkCompositeDataSet* input, vtkCompositeDataSet* output)
{
  auto inputDataTree = vtkDataObjectTree::SafeDownCast(input);
  auto outputDataTree = vtkDataObjectTree::SafeDownCast(output);
  auto cacheDataTree = vtkDataObjectTree::SafeDownCast(this->Cache);

  if (!inputDataTree || !outputDataTree || !cacheDataTree)
  {
    vtkWarningMacro("Only vtkDataObjectTree are supported for now");
    return;
  }

  auto options = vtk::DataObjectTreeOptions::TraverseSubTree |
    vtk::DataObjectTreeOptions::SkipEmptyNodes | vtk::DataObjectTreeOptions::VisitOnlyLeaves;
  auto inputDataRange = vtk::Range(inputDataTree, options);
  auto outputDataRange = vtk::Range(outputDataTree, options);
  auto cacheDataRange = vtk::Range(cacheDataTree, options);

  auto inputBlock = inputDataRange.begin();
  auto outputBlock = outputDataRange.begin();
  auto cacheBlock = cacheDataRange.begin();
  while (outputBlock != outputDataRange.end() && inputBlock != inputDataRange.end() &&
    cacheBlock != cacheDataRange.end())
  {
    auto inputDataSet = vtkDataSet::SafeDownCast(*inputBlock);
    auto outputDataSet = vtkDataSet::SafeDownCast(*outputBlock);
    auto cacheDataSet = vtkDataSet::SafeDownCast(*cacheBlock);
    if (outputDataSet && cacheDataSet)
    {
      this->ForwardAttributesToDataSet(inputDataSet, cacheDataSet, outputDataSet);
    }

    cacheBlock++;
    outputBlock++;
    inputBlock++;
  }

  outputDataTree->GetFieldData()->PassData(inputDataTree->GetFieldData());
}

//------------------------------------------------------------------------------
void vtkDataObjectMeshCache::ForwardAttributes(