itkTriangleMeshToSimplexMeshFilter.h

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/*=========================================================================
 *
 *  Copyright Insight Software Consortium
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *         http://www.apache.org/licenses/LICENSE-2.0.txt
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 *=========================================================================*/
#ifndef itkTriangleMeshToSimplexMeshFilter_h
#define itkTriangleMeshToSimplexMeshFilter_h

#include "itkMapContainer.h"
#include "itkSimplexMesh.h"
#include "itkMeshToMeshFilter.h"
#include "itkVectorContainer.h"

#include "itkPolygonCell.h"
namespace itk
{
template< typename TInputMesh, typename TOutputMesh >
class ITK_TEMPLATE_EXPORT TriangleMeshToSimplexMeshFilter:public MeshToMeshFilter< TInputMesh, TOutputMesh >
{
public:

  typedef TriangleMeshToSimplexMeshFilter Self;

  typedef MeshToMeshFilter< TInputMesh, TOutputMesh > Superclass;

  typedef SmartPointer< Self >       Pointer;
  typedef SmartPointer< const Self > ConstPointer;

  itkNewMacro(Self);

  itkTypeMacro(TriangleMeshToSimplexMeshFilter, MeshToMeshFilter);

  typedef TInputMesh                     InputMeshType;
  typedef typename TInputMesh::Pointer   InputMeshPointer;
  typedef typename TInputMesh::PointType InputPointType;

  typedef typename TInputMesh::BoundaryAssignmentsContainerPointer InputBoundaryAssignmentsContainerPointer;

  typedef typename TInputMesh::PointsContainer         InputPointsContainer;
  typedef typename InputPointsContainer::Pointer       InputPointsContainerPointer;
  typedef typename InputPointsContainer::Iterator      InputPointsContainerIterator;
  typedef typename InputPointsContainer::ConstIterator InputPointsContainerConstIterator;

  typedef typename TOutputMesh::Pointer                   OutputMeshPointer;
  typedef typename TOutputMesh::PointType                 OutputPointType;
  typedef typename TOutputMesh::PixelType                 OutputPixelType;
  typedef typename TOutputMesh::PointsContainer           OutputPointsContainer;
  typedef typename OutputPointsContainer::Pointer         OutputPointsContainerPointer;
  typedef typename TOutputMesh::PointsContainer::Iterator OutputPointsContainerIterator;

  typedef typename TInputMesh::BoundaryAssignmentIdentifier InputBoundnaryAssignmentIdentifier;

  typedef typename TInputMesh::CellType               InputCellType;
  typedef typename InputCellType::CellAutoPointer     InputCellAutoPointer;
  typedef typename TInputMesh::CellAutoPointer        CellAutoPointer;
  typedef          itk::LineCell< InputCellType >     LineType;
  typedef          itk::PolygonCell< InputCellType >  PolygonType;
  typedef          itk::TriangleCell< InputCellType > TriangleType;
  typedef          itk::VertexCell< InputCellType >   VertexType;

  typedef typename TOutputMesh::CellIdentifier        CellIdentifier;
  typedef typename TOutputMesh::PointIdentifier       PointIdentifier;
  typedef typename TOutputMesh::CellFeatureIdentifier CellFeatureIdentifier;

  typedef          std::pair< CellIdentifier, CellIdentifier >     EdgeIdentifierType;
  typedef          std::set< CellIdentifier >                      IndexSetType;

  typedef          itk::MapContainer< CellIdentifier, EdgeIdentifierType > EdgeNeighborListType;
  typedef          itk::MapContainer< EdgeIdentifierType, CellIdentifier > LineCellIndexType;

  typedef          itk::MapContainer< PointIdentifier, IndexSetType >       VertexNeighborListType;
  typedef          itk::MapContainer< EdgeIdentifierType, CellIdentifier >  EdgeMapType;
  typedef typename EdgeMapType::Pointer                                     EdgeMapPointer;

  typedef          itk::VectorContainer< CellIdentifier, CellIdentifier >   IdVectorType;
  typedef typename IdVectorType::Pointer                                    IdVectorPointer;

  typedef typename TOutputMesh::CellType              OutputCellType;
  typedef typename TOutputMesh::CellAutoPointer       OutputCellAutoPointer;
  typedef          itk::LineCell< OutputCellType >    OutputLineType;
  typedef          itk::PolygonCell< OutputCellType > OutputPolygonType;

protected:

  TriangleMeshToSimplexMeshFilter();
  ~TriangleMeshToSimplexMeshFilter() ITK_OVERRIDE;
  TriangleMeshToSimplexMeshFilter(const Self &) {}

  void operator=(const Self &) {}

  void PrintSelf(std::ostream & os, Indent indent) const ITK_OVERRIDE;

  virtual void GenerateData() ITK_OVERRIDE;

  void Initialize();

  void CreateSimplexPoints();

  void CreateEdgeForTrianglePair(CellIdentifier pointIndex,
                                 CellIdentifier boundaryId,
                                 TOutputMesh *outputMesh);

  void CreateSimplexNeighbors();

  void CreateCells();

  void CreateNewEdge(CellIdentifier currentCellId, CellFeatureIdentifier featureId,
                     PointIdentifier startPointId, PointIdentifier endPointId,
                     const InputMeshType *input);


  InputPointType ComputeFaceCenter(CellIdentifier faceId, const InputMeshType *inputMesh);

  IndexSetType *m_FaceSet;

  EdgeMapPointer m_Edges;

  typename EdgeNeighborListType::Pointer m_EdgeNeighborList;

  typename VertexNeighborListType::Pointer m_VertexNeighborList;

  typename LineCellIndexType::Pointer m_LineCellIndices;

  CellIdentifier m_CellIdxOffset;

  PointIdentifier m_IdOffset;

  CellIdentifier m_EdgeCellId;

  IdVectorPointer m_HandledEdgeIds;

  InputCellAutoPointer m_NewInputMeshCellPointer;

  OutputCellAutoPointer m_NewSimplexCellPointer;
};
} //end of namespace

#ifndef ITK_MANUAL_INSTANTIATION
#include "itkTriangleMeshToSimplexMeshFilter.hxx"
#endif

#endif