layout a vtkTree into packed circles using the front chain algorithm. More...

#include <vtkCirclePackFrontChainLayoutStrategy.h>

Inheritance diagram for vtkCirclePackFrontChainLayoutStrategy:

Collaboration diagram for vtkCirclePackFrontChainLayoutStrategy:

Public Types
typedef vtkCirclePackLayoutStrategy	Superclass

Public Types inherited from vtkCirclePackLayoutStrategy
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkCirclePackFrontChainLayoutStrategy *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)


virtual void	Layout (vtkTree inputTree, vtkDataArray areaArray, vtkDataArray *sizeArray)


virtual int	GetWidth ()

virtual void	SetWidth (int)

virtual int	GetHeight ()

virtual void	SetHeight (int)

Public Member Functions inherited from vtkCirclePackLayoutStrategy
vtkCirclePackLayoutStrategy *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

Public Member Functions inherited from vtkObject
vtkObject *	NewInstance () const

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

virtual unsigned long	GetMTime ()

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)

vtkCommand *	GetCommand (unsigned long tag)

void	RemoveObserver (vtkCommand *)

void	RemoveObservers (unsigned long event, vtkCommand *)

void	RemoveObservers (const char event, vtkCommand )

int	HasObserver (unsigned long event, vtkCommand *)

int	HasObserver (const char event, vtkCommand )

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

int	HasObserver (unsigned long event)

int	HasObserver (const char *event)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)

int	InvokeEvent (unsigned long event, void *callData)

int	InvokeEvent (const char event, void callData)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const

virtual void	Delete ()

virtual void	FastDelete ()

void	Print (ostream &os)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Static Public Member Functions
static vtkCirclePackFrontChainLayoutStrategy *	New ()

static int	IsTypeOf (const char *type)

static vtkCirclePackFrontChainLayoutStrategy *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkCirclePackLayoutStrategy
static int	IsTypeOf (const char *type)

static vtkCirclePackLayoutStrategy *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static int	IsTypeOf (const char *type)

static vtkObject *	SafeDownCast (vtkObjectBase *o)

static vtkObject *	New ()

static void	BreakOnError ()

static void	SetGlobalWarningDisplay (int val)

static void	GlobalWarningDisplayOn ()

static void	GlobalWarningDisplayOff ()

static int	GetGlobalWarningDisplay ()

Static Public Member Functions inherited from vtkObjectBase
static int	IsTypeOf (const char *name)

static vtkObjectBase *	New ()

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkCirclePackFrontChainLayoutStrategy ()

	~vtkCirclePackFrontChainLayoutStrategy ()

Protected Member Functions inherited from vtkCirclePackLayoutStrategy
	vtkCirclePackLayoutStrategy ()

	~vtkCirclePackLayoutStrategy ()

Protected Member Functions inherited from vtkObject
	vtkObject ()

virtual	~vtkObject ()

virtual void	RegisterInternal (vtkObjectBase *, int check)

virtual void	UnRegisterInternal (vtkObjectBase *, int check)

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=NULL)

void	InternalReleaseFocus ()

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
char *	CirclesFieldName

int	Width

int	Height

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

layout a vtkTree into packed circles using the front chain algorithm.

vtkCirclePackFrontChainLayoutStrategy assigns circles to each node of the input vtkTree using the front chain algorithm. The algorithm packs circles by searching a "front chain" of circles around the perimeter of the circles that have already been packed for the current level in the tree hierarchy. Searching the front chain is in general faster than searching all of the circles that have been packed at the current level.

WARNING: The algorithm tends to break down and produce packings with overlapping circles when there is a large difference in the radii of the circles at a given level of the tree hierarchy. Roughly on the order a 1000:1 ratio of circle radii.

Please see the following reference for more details on the algorithm.

Title: "Visualization of large hierarchical data by circle packing" Authors: Weixin Wang, Hui Wang, Guozhong Dai, Hongan Wang Conference: Proceedings of the SIGCHI conference on Human Factors in computing systems Year: 2006

Tests:: vtkCirclePackFrontChainLayoutStrategy (Tests)

Definition at line 55 of file vtkCirclePackFrontChainLayoutStrategy.h.

Member Typedef Documentation

typedef vtkCirclePackLayoutStrategy vtkCirclePackFrontChainLayoutStrategy::Superclass

Definition at line 60 of file vtkCirclePackFrontChainLayoutStrategy.h.

Constructor & Destructor Documentation

vtkCirclePackFrontChainLayoutStrategy::vtkCirclePackFrontChainLayoutStrategy ( )

protected

vtkCirclePackFrontChainLayoutStrategy::~vtkCirclePackFrontChainLayoutStrategy ( )

protected

Member Function Documentation

static vtkCirclePackFrontChainLayoutStrategy* vtkCirclePackFrontChainLayoutStrategy::New ( )

static

static int vtkCirclePackFrontChainLayoutStrategy::IsTypeOf ( const char * type )

static

virtual int vtkCirclePackFrontChainLayoutStrategy::IsA ( const char * name )

virtual

Return 1 if this class is the same type of (or a subclass of) the named class. Returns 0 otherwise. This method works in combination with vtkTypeMacro found in vtkSetGet.h.

Reimplemented from vtkCirclePackLayoutStrategy.

static vtkCirclePackFrontChainLayoutStrategy* vtkCirclePackFrontChainLayoutStrategy::SafeDownCast ( vtkObjectBase * o )

static

virtual vtkObjectBase* vtkCirclePackFrontChainLayoutStrategy::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCirclePackLayoutStrategy.

vtkCirclePackFrontChainLayoutStrategy* vtkCirclePackFrontChainLayoutStrategy::NewInstance ( ) const

void vtkCirclePackFrontChainLayoutStrategy::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)

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 vtkObject.