itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h

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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    $RCSfile: itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h,v $
  Language:  C++
  Date:      $Date: 2009-04-23 03:43:42 $
  Version:   $Revision: 1.19 $

  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, //1
    MESH_NULL, //2
    EDGE_ISOLATED, //3
    TOO_MANY_COMMON_VERTICES, //4
    TETRAHEDRON_CONFIG, //5
    QUADEDGE_ISOLATED, //6
    FACE_ISOLATED, //7
    SAMOSA_CONFIG, //8
    EYE_CONFIG, //9
    EDGE_JOINING_DIFFERENT_BORDERS //10
    };

  itkGetConstMacro( OldPointID, PointIdentifier );
  itkGetConstMacro( 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 IsTetrahedron( 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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