Dijkstra algorithm to compute the graph geodesic. More...

#include <vtkDijkstraImageGeodesicPath.h>

Inheritance diagram for vtkDijkstraImageGeodesicPath:

Collaboration diagram for vtkDijkstraImageGeodesicPath:

Public Member Functions

void	SetInputData (vtkDataObject *)

vtkImageData *	GetInputAsImageData ()


void	SetImageWeight (double)

virtual double	GetImageWeight ()


void	SetEdgeLengthWeight (double)

virtual double	GetEdgeLengthWeight ()


virtual void	SetCurvatureWeight (double)

virtual double	GetCurvatureWeight ()

Public Member Functions inherited from vtkDijkstraGraphGeodesicPath
virtual void	GetCumulativeWeights (vtkDoubleArray *weights)

virtual vtkIdList *	GetIdList ()

virtual void	SetStopWhenEndReached (int)

virtual int	GetStopWhenEndReached ()

virtual void	StopWhenEndReachedOn ()

virtual void	StopWhenEndReachedOff ()

virtual void	SetUseScalarWeights (int)

virtual int	GetUseScalarWeights ()

virtual void	UseScalarWeightsOn ()

virtual void	UseScalarWeightsOff ()

virtual void	SetRepelPathFromVertices (int)

virtual int	GetRepelPathFromVertices ()

virtual void	RepelPathFromVerticesOn ()

virtual void	RepelPathFromVerticesOff ()

virtual void	SetRepelVertices (vtkPoints *)

virtual vtkPoints *	GetRepelVertices ()

vtkDijkstraGraphGeodesicPath *	NewInstance () const

Public Member Functions inherited from vtkGraphGeodesicPath
virtual vtkIdType	GetStartVertex ()

virtual void	SetStartVertex (vtkIdType)

virtual vtkIdType	GetEndVertex ()

virtual void	SetEndVertex (vtkIdType)

vtkGraphGeodesicPath *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

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

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

vtkDataObject *	GetInput ()

vtkDataObject *	GetInput (int port)

vtkPolyData *	GetPolyDataInput (int port)

vtkPolyData *	GetOutput ()

vtkPolyData *	GetOutput (int)

virtual void	SetOutput (vtkDataObject *d)

virtual int	ProcessRequest (vtkInformation , vtkInformationVector , vtkInformationVector )

void	SetInputData (vtkDataObject *)

void	SetInputData (int, vtkDataObject *)

void	AddInputData (vtkDataObject *)

void	AddInputData (int, vtkDataObject *)

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

int	HasExecutive ()

vtkExecutive *	GetExecutive ()

virtual void	SetExecutive (vtkExecutive *executive)

virtual int	ModifyRequest (vtkInformation *request, int when)

vtkInformation *	GetInputPortInformation (int port)

vtkInformation *	GetOutputPortInformation (int port)

int	GetNumberOfInputPorts ()

int	GetNumberOfOutputPorts ()

void	UpdateProgress (double amount)

vtkInformation *	GetInputArrayInformation (int idx)

void	RemoveAllInputs ()

vtkDataObject *	GetOutputDataObject (int port)

virtual void	RemoveInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	RemoveInputConnection (int port, int idx)

virtual void	RemoveAllInputConnections (int port)

int	GetNumberOfInputConnections (int port)

int	GetTotalNumberOfInputConnections ()

vtkAlgorithmOutput *	GetInputConnection (int port, int index)

vtkAlgorithm *	GetInputAlgorithm (int port, int index, int &algPort)

vtkAlgorithm *	GetInputAlgorithm (int port, int index)

vtkExecutive *	GetInputExecutive (int port, int index)

vtkInformation *	GetInputInformation (int port, int index)

vtkInformation *	GetOutputInformation (int port)

virtual void	UpdateInformation ()

virtual void	UpdateDataObject ()

virtual void	PropagateUpdateExtent ()

virtual void	UpdateWholeExtent ()

void	ConvertTotalInputToPortConnection (int ind, int &port, int &conn)

int	SetUpdateExtentToWholeExtent (int port)

int	SetUpdateExtentToWholeExtent ()

void	SetUpdateExtent (int port, int extent[6])

int	ProcessRequest (vtkInformation request, vtkCollection inInfo, vtkInformationVector *outInfo)

virtual int	ComputePipelineMTime (vtkInformation request, vtkInformationVector inInfoVec, vtkInformationVector outInfoVec, int requestFromOutputPort, unsigned long *mtime)

virtual vtkInformation *	GetInformation ()

virtual void	SetInformation (vtkInformation *)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

virtual void	SetAbortExecute (int)

virtual int	GetAbortExecute ()

virtual void	AbortExecuteOn ()

virtual void	AbortExecuteOff ()

virtual void	SetProgress (double)

virtual double	GetProgress ()

void	SetProgressText (const char *ptext)

virtual char *	GetProgressText ()

virtual unsigned long	GetErrorCode ()

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, const char *name)

virtual void	SetInputArrayToProcess (int idx, int port, int connection, int fieldAssociation, int fieldAttributeType)

virtual void	SetInputArrayToProcess (int idx, vtkInformation *info)

virtual void	SetInputArrayToProcess (int idx, int port, int connection, const char fieldAssociation, const char attributeTypeorName)

vtkDataObject *	GetInputDataObject (int port, int connection)

virtual void	SetInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	SetInputConnection (vtkAlgorithmOutput *input)

virtual void	AddInputConnection (int port, vtkAlgorithmOutput *input)

virtual void	AddInputConnection (vtkAlgorithmOutput *input)

virtual void	SetInputDataObject (int port, vtkDataObject *data)

virtual void	SetInputDataObject (vtkDataObject *data)

virtual void	AddInputDataObject (int port, vtkDataObject *data)

virtual void	AddInputDataObject (vtkDataObject *data)

vtkAlgorithmOutput *	GetOutputPort (int index)

vtkAlgorithmOutput *	GetOutputPort ()

vtkAlgorithm *	GetInputAlgorithm ()

vtkExecutive *	GetInputExecutive ()

vtkInformation *	GetInputInformation ()

virtual void	Update (int port)

virtual void	Update ()

virtual void	SetReleaseDataFlag (int)

virtual int	GetReleaseDataFlag ()

void	ReleaseDataFlagOn ()

void	ReleaseDataFlagOff ()

int	UpdateExtentIsEmpty (vtkInformation pinfo, vtkDataObject output)

int	UpdateExtentIsEmpty (vtkInformation *pinfo, int extentType)

void	SetUpdateExtent (int port, int piece, int numPieces, int ghostLevel)

void	SetUpdateExtent (int piece, int numPieces, int ghostLevel)

void	SetUpdateExtent (int extent[6])

int *	GetUpdateExtent ()

int *	GetUpdateExtent (int port)

void	GetUpdateExtent (int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)

void	GetUpdateExtent (int port, int &x0, int &x1, int &y0, int &y1, int &z0, int &z1)

void	GetUpdateExtent (int extent[6])

void	GetUpdateExtent (int port, int extent[6])

int	GetUpdatePiece ()

int	GetUpdatePiece (int port)

int	GetUpdateNumberOfPieces ()

int	GetUpdateNumberOfPieces (int port)

int	GetUpdateGhostLevel ()

int	GetUpdateGhostLevel (int port)

void	SetProgressObserver (vtkProgressObserver *)

virtual vtkProgressObserver *	GetProgressObserver ()

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)

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 vtkDijkstraImageGeodesicPath *	New ()

Static Public Member Functions inherited from vtkDijkstraGraphGeodesicPath
static vtkDijkstraGraphGeodesicPath *	New ()

static int	IsTypeOf (const char *type)

static vtkDijkstraGraphGeodesicPath *	SafeDownCast (vtkObjectBase *o)

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

static vtkGraphGeodesicPath *	SafeDownCast (vtkObjectBase *o)

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

static vtkGeodesicPath *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkPolyDataAlgorithm
static vtkPolyDataAlgorithm *	New ()

static int	IsTypeOf (const char *type)

static vtkPolyDataAlgorithm *	SafeDownCast (vtkObjectBase *o)

Static Public Member Functions inherited from vtkAlgorithm
static vtkAlgorithm *	New ()

static int	IsTypeOf (const char *type)

static vtkAlgorithm *	SafeDownCast (vtkObjectBase *o)

static vtkInformationIntegerKey *	INPUT_IS_OPTIONAL ()

static vtkInformationIntegerKey *	INPUT_IS_REPEATABLE ()

static vtkInformationInformationVectorKey *	INPUT_REQUIRED_FIELDS ()

static vtkInformationStringVectorKey *	INPUT_REQUIRED_DATA_TYPE ()

static vtkInformationInformationVectorKey *	INPUT_ARRAYS_TO_PROCESS ()

static vtkInformationIntegerKey *	INPUT_PORT ()

static vtkInformationIntegerKey *	INPUT_CONNECTION ()

static vtkInformationIntegerKey *	CAN_PRODUCE_SUB_EXTENT ()

static vtkInformationIntegerKey *	CAN_HANDLE_PIECE_REQUEST ()

static void	SetDefaultExecutivePrototype (vtkExecutive *proto)

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
	vtkDijkstraImageGeodesicPath ()

	~vtkDijkstraImageGeodesicPath ()

virtual int	FillInputPortInformation (int port, vtkInformation *info)

virtual int	RequestData (vtkInformation , vtkInformationVector , vtkInformationVector )

virtual void	BuildAdjacency (vtkDataSet *inData)

void	UpdateStaticCosts (vtkImageData *image)

virtual double	CalculateStaticEdgeCost (vtkDataSet *inData, vtkIdType u, vtkIdType v)

virtual double	CalculateDynamicEdgeCost (vtkDataSet *inData, vtkIdType u, vtkIdType v)

Protected Member Functions inherited from vtkDijkstraGraphGeodesicPath
	vtkDijkstraGraphGeodesicPath ()

	~vtkDijkstraGraphGeodesicPath ()

void	Initialize (vtkDataSet *inData)

void	Reset ()

virtual void	ShortestPath (vtkDataSet *inData, int startv, int endv)

void	Relax (const int &u, const int &v, const double &w)

void	TraceShortestPath (vtkDataSet inData, vtkPolyData outPoly, vtkIdType startv, vtkIdType endv)

Protected Member Functions inherited from vtkGraphGeodesicPath
	vtkGraphGeodesicPath ()

	~vtkGraphGeodesicPath ()

Protected Member Functions inherited from vtkGeodesicPath
	vtkGeodesicPath ()

	~vtkGeodesicPath ()

Protected Member Functions inherited from vtkPolyDataAlgorithm
	vtkPolyDataAlgorithm ()

	~vtkPolyDataAlgorithm ()

virtual int	RequestInformation (vtkInformation request, vtkInformationVector inputVector, vtkInformationVector outputVector)

virtual int	FillOutputPortInformation (int port, vtkInformation *info)

virtual int	RequestUpdateExtent (vtkInformation , vtkInformationVector , vtkInformationVector )

Protected Member Functions inherited from vtkAlgorithm
	vtkAlgorithm ()

	~vtkAlgorithm ()

virtual void	SetNumberOfInputPorts (int n)

virtual void	SetNumberOfOutputPorts (int n)

int	InputPortIndexInRange (int index, const char *action)

int	OutputPortIndexInRange (int index, const char *action)

int	GetInputArrayAssociation (int idx, vtkInformationVector **inputVector)

virtual vtkExecutive *	CreateDefaultExecutive ()

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	SetNumberOfInputConnections (int port, int n)

int	GetInputArrayAssociation (int idx, int connection, vtkInformationVector **inputVector)

int	GetInputArrayAssociation (int idx, vtkDataObject *input)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)

vtkDataArray *	GetInputArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input)

vtkDataArray *	GetInputArrayToProcess (int idx, vtkDataObject *input, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkInformationVector **inputVector, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, int connection, vtkInformationVector **inputVector, int &association)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input)

vtkAbstractArray *	GetInputAbstractArrayToProcess (int idx, vtkDataObject *input, int &association)

vtkInformation *	GetInputArrayFieldInformation (int idx, vtkInformationVector **inputVector)

virtual void	SetNthInputConnection (int port, int index, vtkAlgorithmOutput *input)

void	SetInputDataInternal (int port, vtkDataObject *input)

void	AddInputDataInternal (int port, vtkDataObject *input)

virtual void	SetErrorCode (unsigned long)

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 &)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
double	PixelSize

double	ImageWeight

double	EdgeLengthWeight

double	CurvatureWeight

bool	RebuildStaticCosts

Protected Attributes inherited from vtkDijkstraGraphGeodesicPath
vtkTimeStamp	AdjacencyBuildTime

int	NumberOfVertices

vtkIdList *	IdList

vtkDijkstraGraphInternals *	Internals

int	StopWhenEndReached

int	UseScalarWeights

int	RepelPathFromVertices

vtkPoints *	RepelVertices

Protected Attributes inherited from vtkGraphGeodesicPath
vtkIdType	StartVertex

vtkIdType	EndVertex

Protected Attributes inherited from vtkAlgorithm
vtkInformation *	Information

double	Progress

char *	ProgressText

vtkProgressObserver *	ProgressObserver

unsigned long	ErrorCode

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

typedef vtkDijkstraGraphGeodesicPath	Superclass

static int	IsTypeOf (const char *type)

static vtkDijkstraImageGeodesicPath *	SafeDownCast (vtkObjectBase *o)

virtual int	IsA (const char *type)

vtkDijkstraImageGeodesicPath *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkDijkstraGraphGeodesicPath
typedef vtkGraphGeodesicPath	Superclass

Public Types inherited from vtkGraphGeodesicPath
typedef vtkGeodesicPath	Superclass

Public Types inherited from vtkGeodesicPath
typedef vtkPolyDataAlgorithm	Superclass

Public Types inherited from vtkPolyDataAlgorithm
typedef vtkAlgorithm	Superclass

Public Types inherited from vtkAlgorithm
typedef vtkObject	Superclass

enum	DesiredOutputPrecision { SINGLE_PRECISION, DOUBLE_PRECISION, DEFAULT_PRECISION }

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

Public Attributes inherited from vtkAlgorithm
int	AbortExecute

Static Protected Member Functions inherited from vtkAlgorithm
static vtkInformationIntegerKey *	PORT_REQUIREMENTS_FILLED ()

Static Protected Attributes inherited from vtkAlgorithm
static vtkExecutive *	DefaultExecutivePrototype

Detailed Description

Dijkstra algorithm to compute the graph geodesic.

Takes as input a polyline and an image representing a 2D cost function and performs a single source shortest path calculation. Dijkstra's algorithm is used. The implementation is similar to the one described in Introduction to Algorithms (Second Edition) by Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, and Cliff Stein, published by MIT Press and McGraw-Hill. Some minor enhancement are added though. All vertices are not pushed on the heap at start, instead a front set is maintained. The heap is implemented as a binary heap. The output of the filter is a set of lines describing the shortest path from StartVertex to EndVertex. See parent class vtkDijkstraGraphGeodesicPath for the implementation.

Warning: The input cost image must have only VTK_PIXEL cells: i.e., a 2D image or slice of a 3D volume. A cost function for a gray scale image might be generated by the following pipeline: vtkImageData->vtkImageGradientMagnitude->vtkImageShiftScale wherein the gradient magnitude image is inverted so that strong edges have low cost value. Costs in moving from a vertex v to a vertex u are calculated using a weighted additive sheme: cost = Iw*f(I) + Ew*f(u,v) + Cw*f(t,u,v) where Iw is the weight associated with f(I): the normalized image cost, Ew is the weight associated with f(u,v): the normalized distance between vertices u and v, and Cw is the weight associated with f(t,u,v): the normalized curvature calculated from the vertex t which precedes vertex u, and vertices u and v. All weights range from 0 to 1.

Thanks:: The class was contributed by Dean Inglis.

Tests:: vtkDijkstraImageGeodesicPath (Tests)

Definition at line 60 of file vtkDijkstraImageGeodesicPath.h.

Member Typedef Documentation

typedef vtkDijkstraGraphGeodesicPath vtkDijkstraImageGeodesicPath::Superclass

Standard methids for printing and determining type information.

Definition at line 70 of file vtkDijkstraImageGeodesicPath.h.

Constructor & Destructor Documentation

vtkDijkstraImageGeodesicPath::vtkDijkstraImageGeodesicPath ( )

protected

vtkDijkstraImageGeodesicPath::~vtkDijkstraImageGeodesicPath ( )

protected

Member Function Documentation

static vtkDijkstraImageGeodesicPath* vtkDijkstraImageGeodesicPath::New ( )

static

Instantiate the class

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

static

Standard methids for printing and determining type information.

virtual int vtkDijkstraImageGeodesicPath::IsA ( const char * type )

virtual

Standard methids for printing and determining type information.

Reimplemented from vtkDijkstraGraphGeodesicPath.

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

static

Standard methids for printing and determining type information.

virtual vtkObjectBase* vtkDijkstraImageGeodesicPath::NewInstanceInternal ( ) const

protectedvirtual

Standard methids for printing and determining type information.

Reimplemented from vtkDijkstraGraphGeodesicPath.

vtkDijkstraImageGeodesicPath* vtkDijkstraImageGeodesicPath::NewInstance ( ) const

Standard methids for printing and determining type information.

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

virtual

Standard methids for printing and determining type information.

Reimplemented from vtkDijkstraGraphGeodesicPath.

void vtkDijkstraImageGeodesicPath::SetInputData ( vtkDataObject * )

Specify the image object which is used as a cost function.

vtkImageData* vtkDijkstraImageGeodesicPath::GetInputAsImageData ( )

Specify the image object which is used as a cost function.

void vtkDijkstraImageGeodesicPath::SetImageWeight ( double )

Image cost weight.

virtual double vtkDijkstraImageGeodesicPath::GetImageWeight ( )

virtual

Image cost weight.

void vtkDijkstraImageGeodesicPath::SetEdgeLengthWeight ( double )

Edge length cost weight.

virtual double vtkDijkstraImageGeodesicPath::GetEdgeLengthWeight ( )

virtual

Edge length cost weight.

virtual void vtkDijkstraImageGeodesicPath::SetCurvatureWeight ( double )

virtual

Curvature cost weight.

virtual double vtkDijkstraImageGeodesicPath::GetCurvatureWeight ( )

virtual

Curvature cost weight.

virtual int vtkDijkstraImageGeodesicPath::FillInputPortInformation	(	int	port,
		vtkInformation *	info
	)

protectedvirtual

Fill the input port information objects for this algorithm. This is invoked by the first call to GetInputPortInformation for each port so subclasses can specify what they can handle.

Reimplemented from vtkGeodesicPath.

virtual int vtkDijkstraImageGeodesicPath::RequestData	(	vtkInformation *	request,
		vtkInformationVector **	inputVector,
		vtkInformationVector *	outputVector
	)