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 Member Functions
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class. More...

vtkCirclePackFrontChainLayoutStrategy *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

void	Layout (vtkTree inputTree, vtkDataArray areaArray, vtkDataArray *sizeArray) override
	Perform the layout of the input tree, and store the circle bounds of each vertex as a tuple in a data array. More...


virtual int	GetWidth ()
	Width and Height define the size of the output window that the circle packing is placed inside. More...

virtual void	SetWidth (int)
	Width and Height define the size of the output window that the circle packing is placed inside. More...

virtual int	GetHeight ()
	Width and Height define the size of the output window that the circle packing is placed inside. More...

virtual void	SetHeight (int)
	Width and Height define the size of the output window that the circle packing is placed inside. More...

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

void	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. More...

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on. More...

virtual void	DebugOff ()
	Turn debugging output off. More...

bool	GetDebug ()
	Get the value of the debug flag. More...

void	SetDebug (bool debugFlag)
	Set the value of the debug flag. More...

virtual void	Modified ()
	Update the modification time for this object. More...

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time. More...

void	RemoveObserver (unsigned long tag)

void	RemoveObservers (unsigned long event)

void	RemoveObservers (const char *event)

void	RemoveAllObservers ()

vtkTypeBool	HasObserver (unsigned long event)

vtkTypeBool	HasObserver (const char *event)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output. More...

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::*callback)(), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, void(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Overloads to AddObserver that allow developers to add class member functions as callbacks for events. More...

template<class U , class T >
unsigned long	AddObserver (unsigned long event, U observer, bool(T::callback)(vtkObject , unsigned long, void *), float priority=0.0f)
	Allow user to set the AbortFlagOn() with the return value of the callback method. More...

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not. More...

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not. More...

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes. More...

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes. More...

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string. More...

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

virtual void	Delete ()
	Delete a VTK object. More...

virtual void	FastDelete ()
	Delete a reference to this object. More...

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream. More...

void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object). More...

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object). More...

int	GetReferenceCount ()
	Return the current reference count of this object. More...

void	SetReferenceCount (int)
	Sets the reference count. More...

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space. More...

virtual void	PrintHeader (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual void	PrintTrailer (ostream &os, vtkIndent indent)
	Methods invoked by print to print information about the object including superclasses. More...

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not. More...

Static Public Member Functions
static vtkCirclePackFrontChainLayoutStrategy *	New ()

static vtkTypeBool	IsTypeOf (const char *type)

static vtkCirclePackFrontChainLayoutStrategy *	SafeDownCast (vtkObjectBase *o)

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

static vtkCirclePackLayoutStrategy *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkObject
static vtkObject *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes. More...

static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed. More...

Static Public Member Functions inherited from vtkObjectBase
static vtkTypeBool	IsTypeOf (const char *name)
	Return 1 if this class type is the same type of (or a subclass of) the named class. More...

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class). More...

static vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within. More...

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkCirclePackFrontChainLayoutStrategy ()

	~vtkCirclePackFrontChainLayoutStrategy () override

Protected Member Functions inherited from vtkCirclePackLayoutStrategy
	vtkCirclePackLayoutStrategy ()

	~vtkCirclePackLayoutStrategy () override

Protected Member Functions inherited from vtkObject
	vtkObject ()

	~vtkObject () override

void	RegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check) override

void	InternalGrabFocus (vtkCommand mouseEvents, vtkCommand keypressEvents=nullptr)
	These methods allow a command to exclusively grab all events. More...

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events. More...

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

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

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

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 41 of file vtkCirclePackFrontChainLayoutStrategy.h.

Member Typedef Documentation

◆ Superclass

typedef vtkCirclePackLayoutStrategy vtkCirclePackFrontChainLayoutStrategy::Superclass

Definition at line 47 of file vtkCirclePackFrontChainLayoutStrategy.h.

Constructor & Destructor Documentation

◆ vtkCirclePackFrontChainLayoutStrategy()

vtkCirclePackFrontChainLayoutStrategy::vtkCirclePackFrontChainLayoutStrategy ( )

protected

◆ ~vtkCirclePackFrontChainLayoutStrategy()

vtkCirclePackFrontChainLayoutStrategy::~vtkCirclePackFrontChainLayoutStrategy ( )

overrideprotected

Member Function Documentation

◆ New()

static vtkCirclePackFrontChainLayoutStrategy* vtkCirclePackFrontChainLayoutStrategy::New ( )

static

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool 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.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkCirclePackFrontChainLayoutStrategy::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkCirclePackLayoutStrategy.

◆ NewInstance()

vtkCirclePackFrontChainLayoutStrategy* vtkCirclePackFrontChainLayoutStrategy::NewInstance ( ) const

◆ PrintSelf()

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

overridevirtual

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.

◆ Layout()

void vtkCirclePackFrontChainLayoutStrategy::Layout	(	vtkTree *	inputTree,
		vtkDataArray *	areaArray,
		vtkDataArray *	sizeArray
	)

overridevirtual

Perform the layout of the input tree, and store the circle bounds of each vertex as a tuple in a data array.

(Xcenter, Ycenter, Radius).

Implements vtkCirclePackLayoutStrategy.

◆ GetWidth()

virtual int vtkCirclePackFrontChainLayoutStrategy::GetWidth ( )

virtual

Width and Height define the size of the output window that the circle packing is placed inside.

Defaults to Width 1, Height 1

◆ SetWidth()

virtual void vtkCirclePackFrontChainLayoutStrategy::SetWidth ( int )

virtual

Width and Height define the size of the output window that the circle packing is placed inside.

Defaults to Width 1, Height 1

◆ GetHeight()

virtual int vtkCirclePackFrontChainLayoutStrategy::GetHeight ( )

virtual

Width and Height define the size of the output window that the circle packing is placed inside.

Defaults to Width 1, Height 1

◆ SetHeight()

virtual void vtkCirclePackFrontChainLayoutStrategy::SetHeight ( int )

virtual

Width and Height define the size of the output window that the circle packing is placed inside.

Defaults to Width 1, Height 1

Member Data Documentation

◆ CirclesFieldName

char* vtkCirclePackFrontChainLayoutStrategy::CirclesFieldName

protected

Definition at line 72 of file vtkCirclePackFrontChainLayoutStrategy.h.

◆ Width

int vtkCirclePackFrontChainLayoutStrategy::Width

protected

Definition at line 73 of file vtkCirclePackFrontChainLayoutStrategy.h.

◆ Height

int vtkCirclePackFrontChainLayoutStrategy::Height

protected

Definition at line 74 of file vtkCirclePackFrontChainLayoutStrategy.h.

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

Infovis/Layout/vtkCirclePackFrontChainLayoutStrategy.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ Superclass

Constructor & Destructor Documentation

◆ vtkCirclePackFrontChainLayoutStrategy()

◆ ~vtkCirclePackFrontChainLayoutStrategy()

Member Function Documentation

◆ New()

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ Layout()

◆ GetWidth()

◆ SetWidth()

◆ GetHeight()

◆ SetHeight()

Member Data Documentation

◆ CirclesFieldName

◆ Width

◆ Height