Collapse a given edge by joining its dest and its org. More...

#include <itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h>

Inheritance diagram for itk::QuadEdgeMeshEulerOperatorJoinVertexFunction< TMesh, TQEType >:

Collaboration diagram for itk::QuadEdgeMeshEulerOperatorJoinVertexFunction< TMesh, TQEType >:

Public Types
typedef MeshType::CellIdentifier	CellIdentifier
typedef SmartPointer< const Self >	ConstPointer
enum	EdgeStatusType { STANDARD_CONFIG = 0, EDGE_NULL, MESH_NULL, EDGE_ISOLATED, TOO_MANY_COMMON_VERTICES, TETRAHEDRON_CONFIG, QUADEDGE_ISOLATED, FACE_ISOLATED, SAMOSA_CONFIG, EYE_CONFIG, EDGE_JOINING_DIFFERENT_BORDERS }
typedef MeshType::FaceRefType	FaceRefType
typedef Superclass::MeshType	MeshType
typedef Superclass::OutputType	OutputType
typedef SmartPointer< Self >	Pointer
typedef MeshType::PointIdentifier	PointIdentifier
typedef TQEType	QEType
typedef QuadEdgeMeshEulerOperatorJoinVertexFunction	Self
typedef QuadEdgeMeshFunctionBase < TMesh, TQEType * >	Superclass
Public Member Functions
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual OutputType	Evaluate (QEType *h)
virtual EdgeStatusType	GetEdgeStatus () const
virtual const char *	GetNameOfClass () const
virtual PointIdentifier	GetOldPointID () const
Static Public Member Functions
static Pointer	New ()
Protected Member Functions
EdgeStatusType	CheckStatus (QEType e, std::stack< TQEType > &oToBeDeleted)
PointIdentifier	CommonVertexNeighboor (QEType *e)
bool	IsEdgeLinkingTwoDifferentBorders (QEType *e)
bool	IsEye (QEType *e)
bool	IsFaceIsolated (QEType e, const bool &iWasLeftFace, std::stack< TQEType > &oToBeDeleted)
bool	IsSamosa (QEType *e)
bool	IsTetrahedron (QEType *e)
void	PrintSelf (std::ostream &os, Indent indent) const
QEType *	Process (QEType *e)
QEType *	ProcessIsolatedFace (QEType e, std::stack< QEType > &EdgesToBeDeleted)
QEType *	ProcessIsolatedQuadEdge (QEType *e)
	QuadEdgeMeshEulerOperatorJoinVertexFunction ()
	~QuadEdgeMeshEulerOperatorJoinVertexFunction ()
Protected Attributes
EdgeStatusType	m_EdgeStatus
PointIdentifier	m_OldPointID
Private Member Functions
void	operator= (const Self &)
	QuadEdgeMeshEulerOperatorJoinVertexFunction (const Self &)

Detailed Description

template<class TMesh, class TQEType>
class itk::QuadEdgeMeshEulerOperatorJoinVertexFunction< TMesh, TQEType >

Collapse a given edge by joining its dest and its org.

Collapse the argument edge e of Evaluate by joining the two vertices incident to e (i.e. its endpoints). The destination vertex of e is set aside (i.e. disconneted from its edge entry and no edge has this vertex as endpoint). Note that the vertex itself is not removed from the container (and hence there is no loss of geometrical information). On success JoinVertex returns the Id of the disconected vertex (i.e. the destination of e) and it is up to the caller to "take care" of it.

Precondition: the edge should be adjacent at least to an other edge (i.e. not be isolated at both endpoints).

Warning:: JoinVertex.Evaluate( h) and JoinVertex.Evaluate( h->GetSym() ) are topologically identical. But their differ in their geometrical result, since JoinVertex removes the destination vertex of the incoming argument. A simple way to visualize this difference is to imagine a mesh constituted of squares layed out on a regular grid and for each such square an added diagonal. No imagine what happens when one operates JoinVertex on a diagonal edge of a corner square (and how it differs with feeding JoinVertex with the opposite edge).

Definition at line 57 of file itkQuadEdgeMeshEulerOperatorJoinVertexFunction.h.