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/*=========================================================================
Program: Visualization Toolkit
Module: vtkCompositeDataSet.txx
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkCompositeDataSet.h"
#include "vtkCompositeDataIterator.h"
#include "vtkDataObject.h"
#include <vector>
#ifndef vtkCompositeDataSet_txx
#define vtkCompositeDataSet_txx
//------------------------------------------------------------------------------
VTK_ABI_NAMESPACE_BEGIN
template <class DataSetT>
std::vector<DataSetT*> vtkCompositeDataSet::GetDataSets(vtkDataObject* dobj, bool preserveNull)
{
std::vector<DataSetT*> datasets;
if (auto cd = vtkCompositeDataSet::SafeDownCast(dobj))
{
auto iter = cd->NewIterator();
iter->SetSkipEmptyNodes(preserveNull ? 0 : 1);
for (iter->InitTraversal(); !iter->IsDoneWithTraversal(); iter->GoToNextItem())
{
if (auto ds = DataSetT::SafeDownCast(iter->GetCurrentDataObject()))
{
datasets.push_back(ds);
}
else if (preserveNull)
{
datasets.push_back(nullptr);
}
}
iter->Delete();
}
else if (auto ds = DataSetT::SafeDownCast(dobj))
{
datasets.push_back(ds);
}
else if (preserveNull)
{
datasets.push_back(nullptr);
}
return datasets;
}
VTK_ABI_NAMESPACE_END
#endif
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