Method SetDataSet

Common/DataModel/vtkDataObjectTree.cxx:231–260

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//------------------------------------------------------------------------------
void vtkDataObjectTree::SetDataSet(vtkCompositeDataIterator* iter, vtkDataObject* dataObj)
{
  if (auto dObjTreeIter = vtkDataObjectTreeIterator::SafeDownCast(iter))
  {
    this->SetDataSetFrom(dObjTreeIter, dataObj);
    return;
  }

  if (!iter || iter->IsDoneWithTraversal())
  {
    vtkErrorMacro("Invalid iterator location.");
    return;
  }

  // WARNING: We are doing something special here. See comments
  // in CopyStructure()
  unsigned int index = iter->GetCurrentFlatIndex();
  if (this->GetNumberOfChildren() != 1)
  {
    vtkErrorMacro("Structure is not expected. Did you forget to use copy structure?");
    return;
  }
  auto parent = vtkPartitionedDataSet::SafeDownCast(this->GetChild(0));
  if (!parent)
  {
    vtkErrorMacro("Structure is not expected. Did you forget to use copy structure?");
    return;
  }
  parent->SetChild(index, dataObj);
}

//------------------------------------------------------------------------------
void vtkDataObjectTree::SetDataSetFrom(