vtkGraphLayoutStrategy Class Reference

#include <vtkGraphLayoutStrategy.h>

Inheritance diagram for vtkGraphLayoutStrategy:

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Collaboration diagram for vtkGraphLayoutStrategy:

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List of all members.

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.

Definition at line 43 of file vtkGraphLayoutStrategy.h.


Public Types
typedef vtkObject	Superclass
Public Member Functions
virtual const char *	GetClassName ()
virtual int	IsA (const char *type)
void	PrintSelf (ostream &os, vtkIndent indent)
virtual void	SetGraph (vtkGraph *graph)
virtual void	Initialize ()
virtual void	Layout ()=0
virtual int	IsLayoutComplete ()

virtual void	SetEdgeWeightField (const char *)
virtual char *	GetEdgeWeightField ()
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkGraphLayoutStrategy *	SafeDownCast (vtkObject *o)
Protected Member Functions
	vtkGraphLayoutStrategy ()
	~vtkGraphLayoutStrategy ()
Protected Attributes
vtkGraph *	Graph
char *	EdgeWeightField

Member Typedef Documentation

typedef vtkObject vtkGraphLayoutStrategy::Superclass

Reimplemented from vtkObject.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

Definition at line 46 of file vtkGraphLayoutStrategy.h.

Constructor & Destructor Documentation

vtkGraphLayoutStrategy::vtkGraphLayoutStrategy ( ) [protected]

vtkGraphLayoutStrategy::~vtkGraphLayoutStrategy ( ) [protected]

Member Function Documentation

virtual const char* vtkGraphLayoutStrategy::GetClassName ( ) [virtual]

Reimplemented from vtkObject.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

static int vtkGraphLayoutStrategy::IsTypeOf ( const char * name ) [static]

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

Reimplemented from vtkObject.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

virtual int 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 vtkTypeRevisionMacro found in vtkSetGet.h.

Reimplemented from vtkObject.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

static vtkGraphLayoutStrategy* vtkGraphLayoutStrategy::SafeDownCast ( vtkObject * o ) [static]

Reimplemented from vtkObject.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

void vtkGraphLayoutStrategy::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.

Reimplemented in vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

virtual void vtkGraphLayoutStrategy::SetGraph ( vtkGraph * graph ) [virtual]

Setting the graph for the layout strategy

Reimplemented in vtkRandomLayoutStrategy.

virtual void vtkGraphLayoutStrategy::Initialize ( ) [inline, virtual]

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

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

Definition at line 54 of file vtkGraphLayoutStrategy.h.

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 vtkCircularLayoutStrategy, vtkClustering2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCosmicTreeLayoutStrategy, vtkFast2DLayoutStrategy, vtkForceDirectedLayoutStrategy, vtkPassThroughLayoutStrategy, vtkRandomLayoutStrategy, vtkSimple2DLayoutStrategy, vtkTreeLayoutStrategy, and vtkTreeOrbitLayoutStrategy.