Method HasMetaData

Common/DataModel/vtkDataObjectTree.cxx:413–450

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//------------------------------------------------------------------------------
vtkTypeBool vtkDataObjectTree::HasMetaData(vtkCompositeDataIterator* compositeIter)
{
  auto dObjTreeIter = vtkDataObjectTreeIterator::SafeDownCast(compositeIter);
  if (!dObjTreeIter || dObjTreeIter->IsDoneWithTraversal())
  {
    vtkErrorMacro("Invalid iterator location.");
    return 0;
  }

  vtkDataObjectTreeIndex index = dObjTreeIter->GetCurrentIndex();

  if (index.empty())
  {
    // Sanity check.
    vtkErrorMacro("Invalid index returned by iterator.");
    return 0;
  }

  vtkDataObjectTree* parent = this;
  int numIndices = static_cast<int>(index.size());
  for (int cc = 0; cc < numIndices - 1; cc++)
  {
    if (!parent || parent->GetNumberOfChildren() <= index[cc])
    {
      vtkErrorMacro("Structure is not expected. Did you forget to use copy structure?");
      return 0;
    }
    parent = vtkDataObjectTree::SafeDownCast(parent->GetChild(index[cc]));
  }

  if (!parent || parent->GetNumberOfChildren() <= index.back())
  {
    vtkErrorMacro("Structure is not expected. Did you forget to use copy structure?");
    return 0;
  }

  return parent->HasChildMetaData(index.back());
}

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void vtkDataObjectTree::CompositeShallowCopy(vtkCompositeDataSet* src)