itk::VoronoiDiagram2DGenerator< TCoordType > Class Template Reference

Implement the Sweep Line Algorithm for the construction of the 2D Voronoi Diagram. More...

#include <itkVoronoiDiagram2DGenerator.h>

Inheritance diagram for itk::VoronoiDiagram2DGenerator< TCoordType >:

Collaboration diagram for itk::VoronoiDiagram2DGenerator< TCoordType >:

List of all members.

Classes
class	FortuneEdge
class	FortuneHalfEdge
class	FortuneSite
Public Types
typedef SmartPointer< const Self >	ConstPointer
typedef VDMesh::CoordRepType	CoordRepType
typedef VDMesh::EdgeInfo	EdgeInfo
typedef VDMesh::EdgeInfoDQ	EdgeInfoDQ
typedef VDMesh::Pointer	OutputType
typedef SmartPointer< Self >	Pointer
typedef VDMesh::PointType	PointType
typedef VDMesh::SeedsIterator	SeedsIterator
typedef VDMesh::SeedsType	SeedsType
typedef VoronoiDiagram2DGenerator	Self
typedef MeshSource < VoronoiDiagram2D< TCoordType > >	Superclass
typedef VoronoiDiagram2D < TCoordType >	VDMesh
typedef VDMesh::VoronoiEdge	VoronoiEdge
Public Member Functions
void	AddOneSeed (PointType)
void	AddSeeds (int num, SeedsIterator begin)
virtual ::itk::LightObject::Pointer	CreateAnother (void) const
virtual void	GenerateOutputInformation ()
virtual const char *	GetNameOfClass () const
virtual unsigned int	GetNumberOfSeeds () const
PointType	GetSeed (int SeedID)
void	SetBoundary (PointType vorsize)
void	SetOrigin (PointType vorsize)
void	SetRandomSeeds (int num)
void	SetSeeds (int num, SeedsIterator begin)
void	SortSeeds (void)
void	UpdateDiagram (void)
Static Public Member Functions
static Pointer	New ()
Protected Member Functions
void	GenerateData (void)
virtual void	PrintSelf (std::ostream &os, Indent indent) const
	VoronoiDiagram2DGenerator ()
	~VoronoiDiagram2DGenerator ()
Private Member Functions
bool	almostsame (CoordRepType p1, CoordRepType p2)
void	bisect (FortuneEdge *, FortuneSite *s1, FortuneSite *s2)
void	clip_line (FortuneEdge *task)
void	ConstructDiagram (void)
void	createHalfEdge (FortuneHalfEdge *task, FortuneEdge *e, bool pm)
void	deleteEdgeList (FortuneHalfEdge *task)
void	deletePQ (FortuneHalfEdge *task)
bool	differentPoint (PointType p1, PointType p2)
double	dist (FortuneSite *s1, FortuneSite *s2)
FortuneHalfEdge *	ELgethash (int b)
FortuneHalfEdge *	findLeftHE (PointType *p)
void	GenerateVDFortune (void)
FortuneSite *	getLeftReg (FortuneHalfEdge *he)
FortuneHalfEdge *	getPQmin (void)
FortuneSite *	getRightReg (FortuneHalfEdge *he)
void	insertEdgeList (FortuneHalfEdge *lbase, FortuneHalfEdge *lnew)
void	insertPQ (FortuneHalfEdge *he, FortuneSite *v, double offset)
void	intersect (FortuneSite *task, FortuneHalfEdge *el1, FortuneHalfEdge *el2)
void	makeEndPoint (FortuneEdge *task, bool lr, FortuneSite *ends)
void	operator= (const Self &)
unsigned char	Pointonbnd (int VertID)
int	PQbucket (FortuneHalfEdge *task)
void	PQshowMin (PointType *task)
bool	right_of (FortuneHalfEdge *el, PointType *p)
	VoronoiDiagram2DGenerator (const Self &)
Static Private Member Functions
static bool	comp (PointType arg1, PointType arg2)
Private Attributes
FortuneSite *	m_BottomSite
FortuneEdge	m_DELETED
double	m_Deltax
double	m_Deltay
std::vector< FortuneHalfEdge * >	m_ELHash
unsigned int	m_ELhashsize
FortuneHalfEdge	m_ELleftend
FortuneHalfEdge	m_ELrightend
unsigned int	m_Nedges
unsigned int	m_NumberOfSeeds
unsigned int	m_Nvert
OutputType	m_OutputVD
unsigned int	m_PQcount
std::vector< FortuneHalfEdge >	m_PQHash
unsigned int	m_PQhashsize
int	m_PQmin
double	m_Pxmax
double	m_Pxmin
double	m_Pymax
double	m_Pymin
SeedsType	m_Seeds
std::vector< FortuneSite >	m_SeedSites
double	m_SqrtNSites
PointType	m_VorBoundary
Friends
class	FortuneEdge
class	FortuneHalfEdge
class	FortuneSite

---

Detailed Description

template<typename TCoordType>
class itk::VoronoiDiagram2DGenerator< TCoordType >

Implement the Sweep Line Algorithm for the construction of the 2D Voronoi Diagram.

Detailed informations of this method can be found in: "A sweepline algorithm for Voronoi diagrams." S. Fortune, Algorithmica 2, 153-174, 1987.

Input parameters are: (1) Size of the region. (2) Seed points coordinates. These coordinates can also be randomly set.

Template parameters for VoronoiDiagram2DGenerator:

TCoordType: the type associated with the coordination of the seeds and the resulting vertices.

Definition at line 51 of file itkVoronoiDiagram2DGenerator.h.

---

Member Typedef Documentation

template<typename TCoordType >

typedef SmartPointer< const Self > itk::VoronoiDiagram2DGenerator< TCoordType >::ConstPointer

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

Definition at line 58 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::CoordRepType itk::VoronoiDiagram2DGenerator< TCoordType >::CoordRepType

Definition at line 74 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::EdgeInfo itk::VoronoiDiagram2DGenerator< TCoordType >::EdgeInfo

Definition at line 72 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::EdgeInfoDQ itk::VoronoiDiagram2DGenerator< TCoordType >::EdgeInfoDQ

Definition at line 73 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::Pointer itk::VoronoiDiagram2DGenerator< TCoordType >::OutputType

Definition at line 69 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef SmartPointer< Self > itk::VoronoiDiagram2DGenerator< TCoordType >::Pointer

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

Definition at line 57 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::PointType itk::VoronoiDiagram2DGenerator< TCoordType >::PointType

Definition at line 70 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::SeedsIterator itk::VoronoiDiagram2DGenerator< TCoordType >::SeedsIterator

Definition at line 68 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::SeedsType itk::VoronoiDiagram2DGenerator< TCoordType >::SeedsType

Definition at line 71 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VoronoiDiagram2DGenerator itk::VoronoiDiagram2DGenerator< TCoordType >::Self

Standard class typedefs.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

Definition at line 55 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef MeshSource< VoronoiDiagram2D< TCoordType > > itk::VoronoiDiagram2DGenerator< TCoordType >::Superclass

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

Definition at line 56 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VoronoiDiagram2D< TCoordType > itk::VoronoiDiagram2DGenerator< TCoordType >::VDMesh

Convenient typedefs.

Definition at line 64 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

typedef VDMesh::VoronoiEdge itk::VoronoiDiagram2DGenerator< TCoordType >::VoronoiEdge

Definition at line 75 of file itkVoronoiDiagram2DGenerator.h.

---

Constructor & Destructor Documentation

template<typename TCoordType >

itk::VoronoiDiagram2DGenerator< TCoordType >::VoronoiDiagram2DGenerator

(

)

[protected]

template<typename TCoordType >

itk::VoronoiDiagram2DGenerator< TCoordType >::~VoronoiDiagram2DGenerator

(

)

[protected]

template<typename TCoordType >

itk::VoronoiDiagram2DGenerator< TCoordType >::VoronoiDiagram2DGenerator

(

const Self &

)

[private]

---

Member Function Documentation

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::AddOneSeed

(

PointType

)

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::AddSeeds	(	int	num,
		SeedsIterator	begin
	)

Add more seeds at one time.

template<typename TCoordType >

bool itk::VoronoiDiagram2DGenerator< TCoordType >::almostsame	(	CoordRepType	p1,
		CoordRepType	p2
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::bisect	(	FortuneEdge *	,
		FortuneSite *	s1,
		FortuneSite *	s2
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::clip_line

(

FortuneEdge *

task

)

[private]

template<typename TCoordType >

static bool itk::VoronoiDiagram2DGenerator< TCoordType >::comp	(	PointType	arg1,
		PointType	arg2
	)		[static, private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::ConstructDiagram

(

void

)

[private]

template<typename TCoordType >

virtual::itk::LightObject::Pointer itk::VoronoiDiagram2DGenerator< TCoordType >::CreateAnother

(

void

)

const [virtual]

Create an object from an instance, potentially deferring to a factory. This method allows you to create an instance of an object that is exactly the same type as the referring object. This is useful in cases where an object has been cast back to a base class.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::createHalfEdge	(	FortuneHalfEdge *	task,
		FortuneEdge *	e,
		bool	pm
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::deleteEdgeList

(

FortuneHalfEdge *

task

)

[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::deletePQ

(

FortuneHalfEdge *

task

)

[private]

template<typename TCoordType >

bool itk::VoronoiDiagram2DGenerator< TCoordType >::differentPoint	(	PointType	p1,
		PointType	p2
	)		[private]

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::dist	(	FortuneSite *	s1,
		FortuneSite *	s2
	)		[private]

template<typename TCoordType >

FortuneHalfEdge* itk::VoronoiDiagram2DGenerator< TCoordType >::ELgethash

(

int

b

)

[private]

template<typename TCoordType >

FortuneHalfEdge* itk::VoronoiDiagram2DGenerator< TCoordType >::findLeftHE

(

PointType *

p

)

[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::GenerateData

(

void

)

[protected, virtual]

Generate Voronoi Diagram based on the current list of seeds.

Reimplemented from itk::ProcessObject.

template<typename TCoordType >

virtual void itk::VoronoiDiagram2DGenerator< TCoordType >::GenerateOutputInformation

(

void

)

[inline, virtual]

Produce the output information.

Reimplemented from itk::ProcessObject.

Definition at line 93 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::GenerateVDFortune

(

void

)

[private]

template<typename TCoordType >

FortuneSite* itk::VoronoiDiagram2DGenerator< TCoordType >::getLeftReg

(

FortuneHalfEdge *

he

)

[private]

template<typename TCoordType >

virtual const char* itk::VoronoiDiagram2DGenerator< TCoordType >::GetNameOfClass

(

)

const [virtual]

Standard part of every itk Object.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

template<typename TCoordType >

virtual unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::GetNumberOfSeeds

(

)

const [virtual]

Get the number of seed points.

template<typename TCoordType >

FortuneHalfEdge* itk::VoronoiDiagram2DGenerator< TCoordType >::getPQmin

(

void

)

[private]

template<typename TCoordType >

FortuneSite* itk::VoronoiDiagram2DGenerator< TCoordType >::getRightReg

(

FortuneHalfEdge *

he

)

[private]

template<typename TCoordType >

PointType itk::VoronoiDiagram2DGenerator< TCoordType >::GetSeed

(

int

SeedID

)

Return the given indexed seed.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::insertEdgeList	(	FortuneHalfEdge *	lbase,
		FortuneHalfEdge *	lnew
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::insertPQ	(	FortuneHalfEdge *	he,
		FortuneSite *	v,
		double	offset
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::intersect	(	FortuneSite *	task,
		FortuneHalfEdge *	el1,
		FortuneHalfEdge *	el2
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::makeEndPoint	(	FortuneEdge *	task,
		bool	lr,
		FortuneSite *	ends
	)		[private]

template<typename TCoordType >

static Pointer itk::VoronoiDiagram2DGenerator< TCoordType >::New

(

)

[static]

Method for creation through the object factory.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::operator=

(

const Self &

)

[private]

Time when GenerateOutputInformation was last called.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

template<typename TCoordType >

unsigned char itk::VoronoiDiagram2DGenerator< TCoordType >::Pointonbnd

(

int

VertID

)

[private]

template<typename TCoordType >

int itk::VoronoiDiagram2DGenerator< TCoordType >::PQbucket

(

FortuneHalfEdge *

task

)

[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::PQshowMin

(

PointType *

task

)

[private]

template<typename TCoordType >

virtual void itk::VoronoiDiagram2DGenerator< TCoordType >::PrintSelf	(	std::ostream &	os,
		Indent	indent
	)		const [protected, virtual]

Methods invoked by Print() to print information about the object including superclasses. Typically not called by the user (use Print() instead) but used in the hierarchical print process to combine the output of several classes.

Reimplemented from itk::MeshSource< VoronoiDiagram2D< TCoordType > >.

template<typename TCoordType >

bool itk::VoronoiDiagram2DGenerator< TCoordType >::right_of	(	FortuneHalfEdge *	el,
		PointType *	p
	)		[private]

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::SetBoundary

(

PointType

vorsize

)

The boundary that enclose the whole voronoi diagram.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::SetOrigin

(

PointType

vorsize

)

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::SetRandomSeeds

(

int

num

)

Set the seeds points randomly.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::SetSeeds	(	int	num,
		SeedsIterator	begin
	)

Input the seeds information, will overwrite if seeds already exists.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::SortSeeds

(

void

)

Sort the seeds by ____.

template<typename TCoordType >

void itk::VoronoiDiagram2DGenerator< TCoordType >::UpdateDiagram

(

void

)

Update the Voronoi Diagram after adding seed(s).

---

Friends And Related Function Documentation

template<typename TCoordType >

friend class FortuneEdge [friend]

Definition at line 140 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

friend class FortuneHalfEdge [friend]

Definition at line 141 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

friend class FortuneSite [friend]

All private nested classes must be friend classes to work with SunOS-CC compiler. If not, the private nested classes will not be able to access each other.

Definition at line 135 of file itkVoronoiDiagram2DGenerator.h.

---

Member Data Documentation

template<typename TCoordType >

FortuneSite* itk::VoronoiDiagram2DGenerator< TCoordType >::m_BottomSite [private]

Definition at line 197 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

FortuneEdge itk::VoronoiDiagram2DGenerator< TCoordType >::m_DELETED [private]

Definition at line 205 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Deltax [private]

Definition at line 188 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Deltay [private]

Definition at line 189 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

std::vector< FortuneHalfEdge * > itk::VoronoiDiagram2DGenerator< TCoordType >::m_ELHash [private]

Definition at line 203 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_ELhashsize [private]

Definition at line 200 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

FortuneHalfEdge itk::VoronoiDiagram2DGenerator< TCoordType >::m_ELleftend [private]

Definition at line 201 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

FortuneHalfEdge itk::VoronoiDiagram2DGenerator< TCoordType >::m_ELrightend [private]

Definition at line 202 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_Nedges [private]

Definition at line 195 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_NumberOfSeeds [private]

Definition at line 121 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_Nvert [private]

Definition at line 196 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

OutputType itk::VoronoiDiagram2DGenerator< TCoordType >::m_OutputVD [private]

Definition at line 123 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_PQcount [private]

Definition at line 192 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

std::vector< FortuneHalfEdge > itk::VoronoiDiagram2DGenerator< TCoordType >::m_PQHash [private]

Definition at line 198 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

unsigned int itk::VoronoiDiagram2DGenerator< TCoordType >::m_PQhashsize [private]

Definition at line 194 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

int itk::VoronoiDiagram2DGenerator< TCoordType >::m_PQmin [private]

Definition at line 193 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Pxmax [private]

Definition at line 185 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Pxmin [private]

Definition at line 184 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Pymax [private]

Definition at line 187 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_Pymin [private]

Definition at line 186 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

SeedsType itk::VoronoiDiagram2DGenerator< TCoordType >::m_Seeds [private]

Definition at line 124 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

std::vector< FortuneSite > itk::VoronoiDiagram2DGenerator< TCoordType >::m_SeedSites [private]

Definition at line 206 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

double itk::VoronoiDiagram2DGenerator< TCoordType >::m_SqrtNSites [private]

Definition at line 190 of file itkVoronoiDiagram2DGenerator.h.

template<typename TCoordType >

PointType itk::VoronoiDiagram2DGenerator< TCoordType >::m_VorBoundary [private]

Definition at line 122 of file itkVoronoiDiagram2DGenerator.h.

---

The documentation for this class was generated from the following file:

• itkVoronoiDiagram2DGenerator.h