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vtkGraphLayoutStrategy Class Referenceabstract

abstract superclass for all graph layout strategies More...

#include <vtkGraphLayoutStrategy.h>

Inheritance diagram for vtkGraphLayoutStrategy:
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Collaboration diagram for vtkGraphLayoutStrategy:
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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...
 
vtkGraphLayoutStrategyNewInstance () 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 ()
 
virtual void SetEdgeWeightField (const char *field)
 Set/Get the field to use for the edge weights. More...
 
virtual char * GetEdgeWeightField ()
 
- 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...
 
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)
 
vtkCommandGetCommand (unsigned long tag)
 
void RemoveObserver (vtkCommand *)
 
void RemoveObservers (unsigned long event, vtkCommand *)
 
void RemoveObservers (const char *event, vtkCommand *)
 
vtkTypeBool HasObserver (unsigned long event, vtkCommand *)
 
vtkTypeBool HasObserver (const char *event, vtkCommand *)
 
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)
 
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)
 
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)
 
int InvokeEvent (unsigned long event)
 
int InvokeEvent (const char *event)
 
- Public Member Functions inherited from vtkObjectBase
const char * GetClassName () const
 Return the class name as a string. 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 PrintHeader (ostream &os, vtkIndent indent)
 
virtual void PrintTrailer (ostream &os, vtkIndent indent)
 
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...
 
void PrintRevisions (ostream &)
 Legacy. More...
 

Static Public Member Functions

static vtkTypeBool IsTypeOf (const char *type)
 
static vtkGraphLayoutStrategySafeDownCast (vtkObjectBase *o)
 
- Static Public Member Functions inherited from vtkObject
static vtkObjectNew ()
 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 ()
 
static void GlobalWarningDisplayOff ()
 
static int GetGlobalWarningDisplay ()
 
- 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 vtkObjectBaseNew ()
 Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...
 

Protected Member Functions

virtual vtkObjectBaseNewInstanceInternal () 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 ()
 
- 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

vtkGraphGraph
 
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
 

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 45 of file vtkGraphLayoutStrategy.h.

Member Typedef Documentation

◆ Superclass

Definition at line 48 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

◆ SafeDownCast()

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

◆ NewInstanceInternal()

virtual vtkObjectBase* vtkGraphLayoutStrategy::NewInstanceInternal ( ) const
protectedvirtual

◆ 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 vtkSpanTreeLayoutStrategy, vtkSimple3DCirclesStrategy, vtkTreeLayoutStrategy, vtkSimple2DLayoutStrategy, vtkRandomLayoutStrategy, vtkPassThroughLayoutStrategy, and vtkTreeOrbitLayoutStrategy.

◆ SetGraph()

virtual void vtkGraphLayoutStrategy::SetGraph ( vtkGraph graph)
virtual

Setting the graph for the layout strategy.

Reimplemented in vtkSimple3DCirclesStrategy, and vtkRandomLayoutStrategy.

◆ 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 vtkForceDirectedLayoutStrategy, vtkAttributeClustering2DLayoutStrategy, vtkSimple2DLayoutStrategy, vtkConstrained2DLayoutStrategy, vtkCommunity2DLayoutStrategy, vtkClustering2DLayoutStrategy, vtkFast2DLayoutStrategy, and vtkPassThroughLayoutStrategy.

Definition at line 61 of file vtkGraphLayoutStrategy.h.

◆ Layout()

virtual void vtkGraphLayoutStrategy::Layout ( )
pure virtual

◆ IsLayoutComplete()

virtual int vtkGraphLayoutStrategy::IsLayoutComplete ( )
inlinevirtual

◆ SetWeightEdges()

virtual void vtkGraphLayoutStrategy::SetWeightEdges ( bool  state)
virtual

Whether to use edge weights in the layout or not.

◆ GetWeightEdges()

virtual bool vtkGraphLayoutStrategy::GetWeightEdges ( )
virtual

◆ 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

Member Data Documentation

◆ Graph

vtkGraph* vtkGraphLayoutStrategy::Graph
protected

Definition at line 99 of file vtkGraphLayoutStrategy.h.

◆ EdgeWeightField

char* vtkGraphLayoutStrategy::EdgeWeightField
protected

Definition at line 100 of file vtkGraphLayoutStrategy.h.

◆ WeightEdges

bool vtkGraphLayoutStrategy::WeightEdges
protected

Definition at line 101 of file vtkGraphLayoutStrategy.h.


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