Detailed Description

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

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

Detailed information on 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

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

Examples:: WikiExamples/Segmentation/VoronoiDiagram2DGenerator.cxx.

Definition at line 46 of file itkVoronoiDiagram2DGenerator.h.

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 VoronoidDiagramType	VDMesh

typedef VoronoiDiagram2D < TCoordType >	VoronoidDiagramType

typedef VDMesh::VoronoiEdge	VoronoiEdge

Public Types inherited from itk::MeshSource< VoronoiDiagram2D< TCoordType > >
typedef SmartPointer< const Self >	ConstPointer

typedef Superclass::DataObjectIdentifierType	DataObjectIdentifierType

typedef DataObject::Pointer	DataObjectPointer

typedef OutputMeshType::Pointer	OutputMeshPointer

typedef VoronoiDiagram2D < TCoordType >	OutputMeshType

typedef SmartPointer< Self >	Pointer

typedef MeshSource	Self

typedef ProcessObject	Superclass

typedef ProcessObject::DataObjectPointerArraySizeType	DataObjectPointerArraySizeType

Public Types inherited from itk::ProcessObject
typedef SmartPointer< const Self >	ConstPointer

typedef DataObject::DataObjectIdentifierType	DataObjectIdentifierType

typedef DataObject::Pointer	DataObjectPointer

typedef std::vector < DataObjectPointer >	DataObjectPointerArray

typedef DataObjectPointerArray::size_type	DataObjectPointerArraySizeType

typedef std::vector < DataObjectIdentifierType >	NameArray

typedef SmartPointer< Self >	Pointer

typedef ProcessObject	Self

typedef Object	Superclass

Public Types inherited from itk::Object
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef Object	Self

typedef LightObject	Superclass

Public Types inherited from itk::LightObject
typedef SmartPointer< const Self >	ConstPointer

typedef SmartPointer< Self >	Pointer

typedef LightObject	Self

Public Member Functions
void	AddOneSeed (PointType)

void	AddSeeds (int num, SeedsIterator begin)

virtual ::itk::LightObject::Pointer	CreateAnother () const

virtual void	GenerateOutputInformation () override

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	UpdateDiagram ()

Public Member Functions inherited from itk::MeshSource< VoronoiDiagram2D< TCoordType > >
virtual ::itk::LightObject::Pointer	CreateAnother () const

OutputMeshType *	GetOutput ()

OutputMeshType *	GetOutput (unsigned int idx)

virtual void	GraftNthOutput (unsigned int idx, DataObject *output)

virtual void	GraftOutput (const DataObjectIdentifierType &key, DataObject *output)

void	SetOutput (VoronoiDiagram2D< TCoordType > *output)

virtual void	GraftOutput (DataObject *output)

virtual DataObjectPointer	MakeOutput (DataObjectPointerArraySizeType idx) override

Public Member Functions inherited from itk::ProcessObject
virtual void	AbortGenerateDataOff ()

virtual void	AbortGenerateDataOn ()

virtual void	EnlargeOutputRequestedRegion (DataObject *)

virtual const bool &	GetAbortGenerateData () const

DataObjectPointerArray	GetIndexedInputs ()

DataObjectPointerArray	GetIndexedOutputs ()

NameArray	GetInputNames () const

DataObjectPointerArray	GetInputs ()

MultiThreader *	GetMultiThreader () const

DataObjectPointerArraySizeType	GetNumberOfIndexedInputs () const

DataObjectPointerArraySizeType	GetNumberOfIndexedOutputs () const

DataObjectPointerArraySizeType	GetNumberOfInputs () const

DataObjectPointerArraySizeType	GetNumberOfOutputs () const

virtual DataObjectPointerArraySizeType	GetNumberOfValidRequiredInputs () const

NameArray	GetOutputNames () const

DataObjectPointerArray	GetOutputs ()

virtual const float &	GetProgress () const

NameArray	GetRequiredInputNames () const

bool	HasInput (const DataObjectIdentifierType &key) const

bool	HasOutput (const DataObjectIdentifierType &key) const

virtual DataObjectPointer	MakeOutput (const DataObjectIdentifierType &)

virtual void	PrepareOutputs ()

virtual void	PropagateRequestedRegion (DataObject *output)

virtual void	ResetPipeline ()

virtual void	SetAbortGenerateData (bool _arg)

virtual void	Update ()

virtual void	UpdateLargestPossibleRegion ()

virtual void	UpdateOutputData (DataObject *output)

virtual void	UpdateOutputInformation ()

void	UpdateProgress (float progress)

void	SetProgress (float progress)

virtual void	SetReleaseDataFlag (bool flag)

virtual bool	GetReleaseDataFlag () const

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

virtual void	SetReleaseDataBeforeUpdateFlag (bool _arg)

virtual const bool &	GetReleaseDataBeforeUpdateFlag () const

virtual void	ReleaseDataBeforeUpdateFlagOn ()

virtual void	ReleaseDataBeforeUpdateFlagOff ()

virtual void	SetNumberOfThreads (ThreadIdType _arg)

virtual const ThreadIdType &	GetNumberOfThreads () const

Public Member Functions inherited from itk::Object
unsigned long	AddObserver (const EventObject &event, Command *)

unsigned long	AddObserver (const EventObject &event, Command *) const

virtual void	DebugOff () const

virtual void	DebugOn () const

Command *	GetCommand (unsigned long tag)

bool	GetDebug () const

MetaDataDictionary &	GetMetaDataDictionary ()

const MetaDataDictionary &	GetMetaDataDictionary () const

virtual ModifiedTimeType	GetMTime () const

virtual const TimeStamp &	GetTimeStamp () const

bool	HasObserver (const EventObject &event) const

void	InvokeEvent (const EventObject &)

void	InvokeEvent (const EventObject &) const

virtual void	Modified () const

virtual void	Register () const override

void	RemoveAllObservers ()

void	RemoveObserver (unsigned long tag)

void	SetDebug (bool debugFlag) const

void	SetMetaDataDictionary (const MetaDataDictionary &rhs)

virtual void	SetReferenceCount (int) override

virtual void	UnRegister () const noexceptoverride

virtual void	SetObjectName (std::string _arg)

virtual const std::string &	GetObjectName () const

Public Member Functions inherited from itk::LightObject
virtual void	Delete ()

virtual int	GetReferenceCount () const

	itkCloneMacro (Self)

void	Print (std::ostream &os, Indent indent=0) const

Static Public Member Functions
static Pointer	New ()

Static Public Member Functions inherited from itk::MeshSource< VoronoiDiagram2D< TCoordType > >
static Pointer	New ()

Static Public Member Functions inherited from itk::Object
static bool	GetGlobalWarningDisplay ()

static void	GlobalWarningDisplayOff ()

static void	GlobalWarningDisplayOn ()

static Pointer	New ()

static void	SetGlobalWarningDisplay (bool flag)

Static Public Member Functions inherited from itk::LightObject
static void	BreakOnError ()

static Pointer	New ()

Protected Member Functions
void	GenerateData (void) override

virtual void	PrintSelf (std::ostream &os, Indent indent) const override

	VoronoiDiagram2DGenerator ()

	~VoronoiDiagram2DGenerator ()

Protected Member Functions inherited from itk::MeshSource< VoronoiDiagram2D< TCoordType > >
virtual void	GenerateInputRequestedRegion () override

	MeshSource ()

virtual	~MeshSource ()

Protected Member Functions inherited from itk::ProcessObject
virtual void	AddInput (DataObject *input)

virtual void	AddOutput (DataObject *output)

bool	AddRequiredInputName (const DataObjectIdentifierType &)

bool	AddRequiredInputName (const DataObjectIdentifierType &, DataObjectPointerArraySizeType idx)

virtual void	CacheInputReleaseDataFlags ()

virtual void	GenerateOutputRequestedRegion (DataObject *output)

DataObject *	GetInput (const DataObjectIdentifierType &key)

const DataObject *	GetInput (const DataObjectIdentifierType &key) const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredInputs () const

virtual const DataObjectPointerArraySizeType &	GetNumberOfRequiredOutputs () const

bool	IsIndexedInputName (const DataObjectIdentifierType &) const

bool	IsIndexedOutputName (const DataObjectIdentifierType &) const

bool	IsRequiredInputName (const DataObjectIdentifierType &) const

	itkLegacyMacro (virtual void RemoveOutput(DataObject *output))

	itkLegacyMacro (void SetNumberOfOutputs(DataObjectPointerArraySizeType num))

	itkLegacyMacro (virtual void RemoveInput(DataObject *input))

	itkLegacyMacro (void SetNumberOfInputs(DataObjectPointerArraySizeType num))

DataObjectPointerArraySizeType	MakeIndexFromInputName (const DataObjectIdentifierType &name) const

DataObjectPointerArraySizeType	MakeIndexFromOutputName (const DataObjectIdentifierType &name) const

DataObjectIdentifierType	MakeNameFromInputIndex (DataObjectPointerArraySizeType idx) const

DataObjectIdentifierType	MakeNameFromOutputIndex (DataObjectPointerArraySizeType idx) const

virtual void	PopBackInput ()

virtual void	PopFrontInput ()

	ProcessObject ()

virtual void	PropagateResetPipeline ()

virtual void	PushBackInput (const DataObject *input)

virtual void	PushFrontInput (const DataObject *input)

virtual void	ReleaseInputs ()

virtual void	RemoveInput (const DataObjectIdentifierType &key)

virtual void	RemoveInput (DataObjectPointerArraySizeType)

virtual void	RemoveOutput (const DataObjectIdentifierType &key)

virtual void	RemoveOutput (DataObjectPointerArraySizeType idx)

bool	RemoveRequiredInputName (const DataObjectIdentifierType &)

virtual void	RestoreInputReleaseDataFlags ()

virtual void	SetInput (const DataObjectIdentifierType &key, DataObject *input)

virtual void	SetNthInput (DataObjectPointerArraySizeType num, DataObject *input)

virtual void	SetNthOutput (DataObjectPointerArraySizeType num, DataObject *output)

void	SetNumberOfIndexedInputs (DataObjectPointerArraySizeType num)

void	SetNumberOfIndexedOutputs (DataObjectPointerArraySizeType num)

virtual void	SetNumberOfRequiredInputs (DataObjectPointerArraySizeType)

virtual void	SetNumberOfRequiredOutputs (DataObjectPointerArraySizeType _arg)

virtual void	SetOutput (const DataObjectIdentifierType &key, DataObject *output)

virtual void	SetPrimaryInput (DataObject *input)

virtual void	SetPrimaryOutput (DataObject *output)

void	SetRequiredInputNames (const NameArray &)

virtual void	VerifyInputInformation ()

virtual void	VerifyPreconditions ()

	~ProcessObject ()

DataObject *	GetInput (DataObjectPointerArraySizeType idx)

const DataObject *	GetInput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryInput ()

const DataObject *	GetPrimaryInput () const

virtual void	SetPrimaryInputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryInputName (void) const

DataObject *	GetOutput (const DataObjectIdentifierType &key)

const DataObject *	GetOutput (const DataObjectIdentifierType &key) const

virtual void	SetPrimaryOutputName (const DataObjectIdentifierType &key)

virtual const char *	GetPrimaryOutputName (void) const

DataObject *	GetOutput (DataObjectPointerArraySizeType idx)

const DataObject *	GetOutput (DataObjectPointerArraySizeType idx) const

DataObject *	GetPrimaryOutput ()

const DataObject *	GetPrimaryOutput () const

Protected Member Functions inherited from itk::Object
	Object ()

bool	PrintObservers (std::ostream &os, Indent indent) const

virtual void	SetTimeStamp (const TimeStamp &time)

virtual	~Object ()

Protected Member Functions inherited from itk::LightObject
virtual LightObject::Pointer	InternalClone () const

	LightObject ()

virtual void	PrintHeader (std::ostream &os, Indent indent) const

virtual void	PrintTrailer (std::ostream &os, Indent indent) const

virtual	~LightObject ()

Private Member Functions
bool	almostsame (CoordRepType p1, CoordRepType p2)

void	bisect (FortuneEdge , FortuneSite s1, FortuneSite *s2)

void	clip_line (FortuneEdge *task)

void	ConstructDiagram ()

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 ()

FortuneSite *	getLeftReg (FortuneHalfEdge *he)

FortuneHalfEdge *	getPQmin ()

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

Additional Inherited Members
Protected Attributes inherited from itk::ProcessObject
TimeStamp	m_OutputInformationMTime

bool	m_Updating

Protected Attributes inherited from itk::LightObject
AtomicInt< int >	m_ReferenceCount