abstract superclass for all graph layout strategies More...

#include <vtkGraphLayoutStrategy.h>

Inheritance diagram for vtkGraphLayoutStrategy:

Collaboration diagram for vtkGraphLayoutStrategy:

Public Types
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...

vtkGraphLayoutStrategy *	NewInstance () const

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

virtual void	SetGraph (vtkGraph *graph)
	Setting the graph for the layout strategy. More...

virtual void	Initialize ()
	This method allows the layout strategy to do initialization of data structures or whatever else it might want to do. More...

virtual void	Layout ()=0
	This is the layout method where the graph that was set in SetGraph() is laid out. More...

virtual int	IsLayoutComplete ()
	If your concrete class is iterative than you should overload IsLayoutComplete() otherwise it simply returns 1 by default;. More...


virtual void	SetWeightEdges (bool state)
	Whether to use edge weights in the layout or not. More...

virtual bool	GetWeightEdges ()
	Whether to use edge weights in the layout or not. More...


virtual void	SetEdgeWeightField (const char *field)
	Set/Get the field to use for the edge weights. More...

virtual char *	GetEdgeWeightField ()
	Set/Get the field to use for the edge weights. 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	PrintSelf (ostream &os, vtkIndent indent) override
	Methods invoked by print to print information about the object including superclasses. 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)

int	InvokeEvent (unsigned long event)

int	InvokeEvent (const char *event)

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...

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

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

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

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

virtual 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...

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

static vtkGraphLayoutStrategy *	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 (int 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 int	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

	vtkGraphLayoutStrategy ()

	~vtkGraphLayoutStrategy () 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	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
vtkGraph *	Graph

char *	EdgeWeightField

bool	WeightEdges

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

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

abstract superclass for all graph layout strategies

All graph layouts should subclass from this class. vtkGraphLayoutStrategy works as a plug-in to the vtkGraphLayout algorithm. The Layout() function should perform some reasonable "chunk" of the layout. This allows the user to be able to see the progress of the layout. Use IsLayoutComplete() to tell the user when there is no more layout to perform.

Thanks:: Thanks to Brian Wylie from Sandia National Laboratories for adding incremental layout capabilities.

Online Examples:

ColorEdges

SelectedVerticesAndEdges

SelectedVerticesAndEdgesObserver

VisualizeGraph

XGMLReader

Definition at line 104 of file vtkGraphLayoutStrategy.h.

Member Typedef Documentation

◆ Superclass

typedef vtkObject vtkGraphLayoutStrategy::Superclass

Definition at line 107 of file vtkGraphLayoutStrategy.h.

Constructor & Destructor Documentation

◆ vtkGraphLayoutStrategy()

vtkGraphLayoutStrategy::vtkGraphLayoutStrategy ( )

protected

◆ ~vtkGraphLayoutStrategy()

vtkGraphLayoutStrategy::~vtkGraphLayoutStrategy ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkGraphLayoutStrategy::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 vtkObjectBase.

Reimplemented in vtkAssignCoordinatesLayoutStrategy, vtkAttributeClustering2DLayoutStrategy, vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConeLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkSimple3DCirclesStrategy, vtkSpanTreeLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkGraphLayoutStrategy::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented in vtkAssignCoordinatesLayoutStrategy, vtkAttributeClustering2DLayoutStrategy, vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConeLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkSimple3DCirclesStrategy, vtkSpanTreeLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

◆ NewInstance()

vtkGraphLayoutStrategy * vtkGraphLayoutStrategy::NewInstance ( ) const

◆ PrintSelf()

void vtkGraphLayoutStrategy::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.

Reimplemented in vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkSimple3DCirclesStrategy, vtkSpanTreeLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

◆ SetGraph()

virtual void vtkGraphLayoutStrategy::SetGraph ( vtkGraph * graph )

virtual

Setting the graph for the layout strategy.

Reimplemented in vtkRandomLayoutStrategy, and vtkSimple3DCirclesStrategy.

◆ Initialize()

virtual void vtkGraphLayoutStrategy::Initialize ( )

inlinevirtual

This method allows the layout strategy to do initialization of data structures or whatever else it might want to do.

Reimplemented in vtkAttributeClustering2DLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, and vtkSimple2DLayoutStrategy.

Definition at line 120 of file vtkGraphLayoutStrategy.h.

◆ Layout()

virtual void vtkGraphLayoutStrategy::Layout ( )

pure virtual

This is the layout method where the graph that was set in SetGraph() is laid out.

The method can either entirely layout the graph or iteratively lay out the graph. If you have an iterative layout please implement the IsLayoutComplete() method.

Implemented in vtkAssignCoordinatesLayoutStrategy, vtkAttributeClustering2DLayoutStrategy, vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConeLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkSpanTreeLayoutStrategy, vtkTreeLayoutStrategy, vtkTreeOrbitLayoutStrategy, and vtkSimple3DCirclesStrategy.

◆ IsLayoutComplete()

virtual int vtkGraphLayoutStrategy::IsLayoutComplete ( )

inlinevirtual

If your concrete class is iterative than you should overload IsLayoutComplete() otherwise it simply returns 1 by default;.

Reimplemented in vtkAttributeClustering2DLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, and vtkSimple2DLayoutStrategy.

Definition at line 136 of file vtkGraphLayoutStrategy.h.

◆ SetWeightEdges()

virtual void vtkGraphLayoutStrategy::SetWeightEdges ( bool state )

virtual

Whether to use edge weights in the layout or not.

◆ GetWeightEdges()

virtual bool vtkGraphLayoutStrategy::GetWeightEdges ( )

virtual

Whether to use edge weights in the layout or not.

◆ SetEdgeWeightField()

virtual void vtkGraphLayoutStrategy::SetEdgeWeightField ( const char * field )

virtual

Set/Get the field to use for the edge weights.

◆ GetEdgeWeightField()

virtual char * vtkGraphLayoutStrategy::GetEdgeWeightField ( )

virtual

Set/Get the field to use for the edge weights.

Member Data Documentation

◆ Graph

vtkGraph* vtkGraphLayoutStrategy::Graph

protected

Definition at line 158 of file vtkGraphLayoutStrategy.h.

◆ EdgeWeightField

char* vtkGraphLayoutStrategy::EdgeWeightField

protected

Definition at line 159 of file vtkGraphLayoutStrategy.h.

◆ WeightEdges

bool vtkGraphLayoutStrategy::WeightEdges

protected

Definition at line 160 of file vtkGraphLayoutStrategy.h.

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

Infovis/Layout/vtkGraphLayoutStrategy.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

◆ vtkGraphLayoutStrategy()

◆ ~vtkGraphLayoutStrategy()

Member Function Documentation

◆ IsTypeOf()

◆ IsA()

◆ SafeDownCast()

◆ NewInstanceInternal()

◆ NewInstance()

◆ PrintSelf()

◆ SetGraph()

◆ Initialize()

◆ Layout()

◆ IsLayoutComplete()

◆ SetWeightEdges()

◆ GetWeightEdges()

◆ SetEdgeWeightField()

◆ GetEdgeWeightField()

Member Data Documentation

◆ Graph

◆ EdgeWeightField

◆ WeightEdges