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

  Program:   Insight Segmentation & Registration Toolkit
  Module:    itkQuadEdgeMeshTraits.h
  Language:  C++
  Date:      $Date$
  Version:   $Revision$

  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 __itkQuadEdgeMeshTraits_h
#define __itkQuadEdgeMeshTraits_h

#include <set>
#include <itkCellInterface.h>
#include <itkMapContainer.h>
#include "itkQuadEdgeMeshPoint.h"
#include "itkGeometricalQuadEdge.h"
#include "itkQuadEdgeCellTraitsInfo.h"

namespace itk
{
/** \class QuadEdgeMeshTraits
 *  \brief Class holding the traits of the QuadEdgeMesh.
 * 
 *  This class is a variant of the MeshTraits that adds the traits 
 *  defined in the QuadEdgeMeshCellTraitsInfo class.
 *
 * \author Alexandre Gouaillard, Leonardo Florez-Valencia, Eric Boix
 *
 * This implementation was contributed as a paper to the Insight Journal
 * http://insight-journal.org/midas/handle.php?handle=1926/306
 *
 *  \sa DefaultDynamicMeshTraits
 *  \sa DefaultStaticMeshTraits
 */
template< typename TPixel, unsigned int VPointDimension,
          typename TPData, typename TDData, 
          typename TCoordRep=float, typename TInterpolationWeight=float >
class QuadEdgeMeshTraits
{
public:
  /** Basic types for a mesh trait class. */
  typedef QuadEdgeMeshTraits                Self;
  typedef TPixel                            PixelType;
  typedef TPixel                            CellPixelType;
  typedef TCoordRep                         CoordRepType;
  typedef TInterpolationWeight              InterpolationWeightType;

  itkStaticConstMacro( PointDimension, unsigned int, VPointDimension );
  itkStaticConstMacro( MaxTopologicalDimension, unsigned int,
                       VPointDimension );

  typedef unsigned long PointIdentifier;
  typedef unsigned long CellIdentifier;
  typedef unsigned char CellFeatureIdentifier; // made small in purpose

  typedef std::set< CellIdentifier > UsingCellsContainer;
  typedef std::set< CellIdentifier > PointCellLinksContainer;

  /** Quad edge typedefs. */
  typedef TPData PrimalDataType;
  typedef TDData DualDataType;
  typedef GeometricalQuadEdge< PointIdentifier, CellIdentifier,
                        PrimalDataType, DualDataType > QEPrimal;
  //typedef QEPrimal QEType;
  typedef typename QEPrimal::DualType             QEDual;
  // FOR LEO typedef typename QEPrimal::Superclass     QEType;
  // FOR LEO typedef typename QEPrimal::Dual           QEDual;
  typedef typename QEPrimal::OriginRefType     VertexRefType;
  typedef typename QEPrimal::DualOriginRefType FaceRefType;

  /** The type of point used for hashing.  This should never change from
   * this setting, regardless of the mesh type. */
  typedef Point< CoordRepType, VPointDimension >       PointHashType;

  /** Points have an entry in the Onext ring */
  typedef QuadEdgeMeshPoint< 
    CoordRepType, VPointDimension, QEPrimal >           PointType;
  typedef MapContainer< PointIdentifier, PointType >    PointsContainer;

  /** Standard cell interface. */
  typedef QuadEdgeMeshCellTraitsInfo< 
    VPointDimension, CoordRepType,
    InterpolationWeightType, PointIdentifier,
    CellIdentifier,          CellFeatureIdentifier,
    PointType,               PointsContainer,
    UsingCellsContainer,     QEPrimal >                 CellTraits;
  typedef CellInterface< CellPixelType, CellTraits >    CellType;
  typedef typename CellType::CellAutoPointer            CellAutoPointer;

  /** Containers types. */
  typedef MapContainer< PointIdentifier,
                        PointCellLinksContainer >       CellLinksContainer;
  typedef MapContainer< CellIdentifier, CellType* >     CellsContainer;
  typedef MapContainer< PointIdentifier, PixelType >    PointDataContainer;
  typedef MapContainer< CellIdentifier, CellPixelType > CellDataContainer;

  /** Other useful types. */
  typedef typename PointType::VectorType VectorType;
};

} 

#endif