itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h

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/*=========================================================================

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h,v $
  Language:  C++
  Date:      $Date: 2008-07-06 20:44:48 $
  Version:   $Revision: 1.15 $

  Copyright (c) Insight Software Consortium. All rights reserved.
  See ITKCopyright.txt or http://www.itk.org/HTML/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 notices for more information.

=========================================================================*/
#ifndef __itkQuadEdgeMeshEulerOperatorJoinVertexFunction_h
#define __itkQuadEdgeMeshEulerOperatorJoinVertexFunction_h

#include "itkQuadEdgeMeshFunctionBase.h"

#include <stack>

namespace itk
{

//FIXME http://www.cgal.org/Manual/doc_html/cgal_manual/Polyhedron_ref/Class_Polyhedron_3.html
template < class TMesh, class TQEType >
class ITK_EXPORT QuadEdgeMeshEulerOperatorJoinVertexFunction :
   public QuadEdgeMeshFunctionBase< TMesh, TQEType* >
{
public:

  typedef QuadEdgeMeshEulerOperatorJoinVertexFunction     Self;
  typedef SmartPointer< Self >                            Pointer;
  typedef SmartPointer< const Self      >                 ConstPointer;
  typedef QuadEdgeMeshFunctionBase< TMesh, TQEType* >     Superclass;

  itkNewMacro( Self );
  itkTypeMacro( QuadEdgeMeshEulerOperatorJoinVertexFunction, QuadEdgeMeshFunctionBase );

  typedef TQEType QEType;

  typedef typename Superclass::MeshType   MeshType;
  typedef typename Superclass::OutputType OutputType;

  typedef typename MeshType::PointIdentifier PointIdentifier;
  typedef typename MeshType::CellIdentifier CellIdentifier;
  typedef typename MeshType::FaceRefType     FaceRefType;

  virtual OutputType Evaluate( QEType* h );

  enum EdgeStatusType
    {
      STANDARD_CONFIG = 0,
      EDGE_NULL,
      MESH_NULL,
      EDGE_ISOLATED,
      TOO_MANY_COMMON_VERTICES,
      TETRAEDRON_CONFIG,
      QUADEDGE_ISOLATED,
      FACE_ISOLATED,
      SAMOSA_CONFIG,
      EYE_CONFIG,
      EDGE_JOINING_DIFFERENT_BORDERS
    };

  itkGetMacro( OldPointID, PointIdentifier );
  itkGetMacro( EdgeStatus, EdgeStatusType );

protected:
  QuadEdgeMeshEulerOperatorJoinVertexFunction();
  ~QuadEdgeMeshEulerOperatorJoinVertexFunction() {}

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

  PointIdentifier m_OldPointID;
  EdgeStatusType m_EdgeStatus;

  size_t CommonVertexNeighboor( QEType* e );

  bool IsTetraedron( QEType* e );

  bool IsFaceIsolated( QEType* e, const bool& iWasLeftFace,
    std::stack< TQEType* >& oToBeDeleted );

  bool IsSamosa( QEType* e );
  bool IsEye( QEType* e );

  bool IsEdgeLinkingTwoDifferentBorders( QEType* e );
  
  EdgeStatusType CheckStatus( QEType* e, std::stack< TQEType* >& oToBeDeleted );

  QEType* Process( QEType* e );
  QEType* ProcessIsolatedQuadEdge( QEType* e );
  QEType* ProcessIsolatedFace( QEType* e,
    std::stack< QEType* > EdgesToBeDeleted );

private:
  QuadEdgeMeshEulerOperatorJoinVertexFunction(const Self& ); //purposely not implemented
  void operator=(const Self& );        //purposely not implemented

};

} // namespace itk

#include "itkQuadEdgeMeshEulerOperatorJoinVertexFunction.txx"

#endif

// eof - $RCSfile: itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h,v $

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