/usr/include/InsightToolkit/Review/itkQuadEdgeMeshFrontIterator.h is in libinsighttoolkit3-dev 3.20.1-1.
This file is owned by root:root, with mode 0o644.
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Program: Insight Segmentation & Registration Toolkit
Module: itkQuadEdgeMeshFrontIterator.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 __itkQuadEdgeMeshFrontIterator_h
#define __itkQuadEdgeMeshFrontIterator_h
// -------------------------------------------------------------------------
#define itkQEDefineFrontIteratorMethodsMacro( MeshTypeArg ) \
/* Dual definition placed before others because of .NET that cannot */ \
/* cope with definition of FrontIterator (that further hides the */ \
/* defintion of the template). */ \
typedef typename MeshTypeArg::QEDual QEDualType; \
typedef typename MeshTypeArg::QEPrimal QEPrimalType; \
typedef QuadEdgeMeshFrontIterator< MeshTypeArg, \
QEDualType > FrontDualIterator; \
typedef QuadEdgeMeshConstFrontIterator< MeshTypeArg, \
QEDualType > \
ConstFrontDualIterator; \
typedef QuadEdgeMeshFrontIterator< MeshTypeArg, \
QEPrimalType > FrontIterator; \
typedef QuadEdgeMeshConstFrontIterator< MeshTypeArg, \
QEPrimalType > \
ConstFrontIterator; \
\
virtual FrontIterator BeginFront( QEPrimalType* seed =(QEPrimalType*)0 ) \
{ return( FrontIterator( this, true, seed ) ); } \
\
virtual ConstFrontIterator BeginFront( QEPrimalType* seed ) const \
{ return( ConstFrontIterator( this, true, seed ) ); } \
\
virtual FrontIterator EndFront( ) \
{ return( FrontIterator( this, false ) ); } \
\
virtual ConstFrontIterator EndFront( ) const \
{ return( ConstFrontIterator( this, false ) ); } \
\
virtual FrontDualIterator BeginDualFront( QEDualType* seed =(QEDualType*) 0 ) \
{ return( FrontDualIterator( this, true, seed ) ); } \
\
virtual ConstFrontDualIterator BeginDualFront( QEDualType* seed ) const \
{ return( ConstFrontDualIterator( this, true, seed ) ); } \
\
virtual FrontDualIterator EndDualFront( ) \
{ return( FrontDualIterator( this, false ) ); } \
\
virtual ConstFrontDualIterator EndDualFront( ) const \
{ return( ConstFrontDualIterator( this, false ) ); }
namespace itk
{
/**
* \class QuadEdgeMeshFrontBaseIterator
*
* \brief Front iterator on Mesh class
*
* Like topological and geometrical operators, it iterates on edges.
* Unlike them, this iterator is not local, nor cyclic. Starting from a
* given seed, it will create a front that propagates on the surface.
* Depending on the weight associated wich each edge, and on the type of the
* seed (primal or dual) it can be used for frint propagation algorithm,
* distance tree computation or other Djikstra like algorithms.
*/
template< typename TMesh, typename TQE >
class QuadEdgeMeshFrontBaseIterator
{
public:
// Hierarchy typedefs & values.
typedef QuadEdgeMeshFrontBaseIterator Self;
// Template types
typedef TMesh MeshType;
typedef TQE QEType;
protected:
// Mesh types
typedef typename MeshType::CoordRepType CoordRepType;
// QE types
typedef typename QEType::OriginRefType QEOriginType;
/**
* \class FrontAtom
*
* \brief Atomic information associated to each edge of the front.
*
* Note that when sorting this list, the sorting criteria is the
* Cost attribute.
*/
class FrontAtom
{
public:
FrontAtom( QEType* e = (QEType*)0, const CoordRepType c = 0 )
: m_Edge( e ), m_Cost( c )
{ }
virtual ~FrontAtom( ) { }
FrontAtom& operator=( const FrontAtom& r )
{ m_Edge = r.m_Edge; m_Cost = r.m_Cost; return *this; }
bool operator==( const FrontAtom& r ) const
{ return( m_Edge == r.m_Edge ); }
bool operator!=( const FrontAtom& r ) const
{ return( m_Edge != r.m_Edge ); }
bool operator<( const FrontAtom& r ) const
{ return( m_Cost < r.m_Cost ); }
public:
QEType* m_Edge;
CoordRepType m_Cost;
};
/** The active front is simply a list of edges that can be sorted on
* the sort attribute FrontAtom
*/
typedef std::list< FrontAtom > FrontType;
typedef typename FrontType::iterator FrontTypeIterator;
typedef FrontType* FrontTypePointer;
/** Whether an Origin (i.e. a vertex or a face since we either deal with
* primal or dual edges) was already visited.
*/
typedef MapContainer< QEOriginType, bool > IsVisitedContainerType;
typedef typename IsVisitedContainerType::Pointer IsVisitedPointerType;
public:
/** Object creation methods. */
QuadEdgeMeshFrontBaseIterator( MeshType* mesh = (MeshType*)0,
bool start = true,
QEType* seed = (QEType*)0 );
virtual ~QuadEdgeMeshFrontBaseIterator( );
Self& operator=( const Self& r )
{
m_Mesh = r.m_Mesh;
m_Start = r.m_Start;
m_Seed = r.m_Seed;
m_Front = r.m_Front;
m_IsPointVisited = r.m_IsPointVisited;
m_CurrentEdge = r.m_CurrentEdge;
return( *this );
}
// Iteration methods.
bool operator==( Self & r )
{
return( m_Start == r.m_Start );
}
bool operator==( const Self & r ) const
{
return( m_Start == r.m_Start );
}
bool operator!=( Self & r )
{
return( !( this->operator==( r ) ) );
}
bool operator!=( const Self & r ) const
{
return( !( this->operator==( r ) ) );
}
Self & operator++( );
Self & operator++( int ) { return( this->operator++( ) ); }
MeshType* GetMesh() const { return this->m_Mesh; }
protected:
/** Find a default seed by taking any edge (with proper type) in
* the current mesh.
*/
QEType* FindDefaultSeed( );
/** The default cost associated to an edge is simply 1. This corresponds
* to the "topological metric" i.e. all edges have unit length.
*/
virtual CoordRepType GetCost( QEType* edge ){ (void)edge; return( 1 ); }
protected:
/** Mesh on which we propagate the front */
MeshType* m_Mesh;
/** Initial seed of the front */
QEType* m_Seed;
/** Whether the iterator is active */
bool m_Start;
/** The active front */
FrontTypePointer m_Front;
/** The already visited points */
IsVisitedPointerType m_IsPointVisited;
/** The current edge at this stage of iteration */
QEType* m_CurrentEdge;
};
/**
* \class QuadEdgeMeshFrontIterator
*
* \brief Non const quad edge front iterator.
*/
template< typename TMesh, typename TQE >
class QuadEdgeMeshFrontIterator
: public QuadEdgeMeshFrontBaseIterator< TMesh, TQE >
{
public:
/** Hierarchy typedefs and values. */
typedef QuadEdgeMeshFrontIterator Self;
typedef QuadEdgeMeshFrontBaseIterator< TMesh, TQE > Superclass;
typedef typename Superclass::MeshType MeshType;
typedef typename Superclass::QEType QEType;
public:
/** Object creation methods. */
QuadEdgeMeshFrontIterator( MeshType* mesh = (MeshType*)0,
bool start = true,
QEType* seed = (QEType*)0 )
: Superclass( mesh, start, seed ) { }
virtual ~QuadEdgeMeshFrontIterator( ) { }
QEType* Value( ) { return( this->m_CurrentEdge ); }
};
/**
* \class QuadEdgeMeshConstFrontIterator
*
* \brief Const quad edge mesh front iterator.
*/
template< class TMesh, class TQE = typename TMesh::QEType >
class QuadEdgeMeshConstFrontIterator
: public QuadEdgeMeshFrontBaseIterator< TMesh, TQE >
{
public:
/** Hierarchy typedefs & values. */
typedef QuadEdgeMeshConstFrontIterator Self;
typedef QuadEdgeMeshFrontBaseIterator< TMesh, TQE > Superclass;
typedef typename Superclass::QEType QEType;
typedef typename Superclass::MeshType MeshType;
typedef QuadEdgeMeshFrontIterator< MeshType, QEType > NoConstType;
public:
/** Object creation methods. */
QuadEdgeMeshConstFrontIterator( const MeshType* mesh = (MeshType*)0,
bool start = true,
QEType* seed = (QEType*)0 )
{
(void)mesh;
(void)start;
(void)seed;
}
/** \todo do we need here a : Superclass( mesh, start, seed ) { } */
virtual ~QuadEdgeMeshConstFrontIterator( ) { }
Self& operator=( const NoConstType& r )
{
this->m_Mesh = r.GetMesh( );
return( *this );
}
const QEType* Value( ) const { return( this->m_CurrentEdge ); }
};
}
#include "itkQuadEdgeMeshFrontIterator.txx"
#endif
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