Defines API for interpolating/modifying nodes from a vtkContourRepresentation. More...

#include <vtkContourLineInterpolator.h>

Inheritance diagram for vtkContourLineInterpolator:

Collaboration diagram for vtkContourLineInterpolator:

Public Member Functions

virtual int	InterpolateLine (vtkRenderer ren, vtkContourRepresentation rep, int idx1, int idx2)=0


virtual int	UpdateNode (vtkRenderer , vtkContourRepresentation , double *vtkNotUsed(node), int vtkNotUsed(idx))


virtual void	GetSpan (int nodeIndex, vtkIntArray nodeIndices, vtkContourRepresentation rep)

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)

virtual void	Register (vtkObjectBase *o)

virtual void	UnRegister (vtkObjectBase *o)

void	SetReferenceCount (int)

void	PrintRevisions (ostream &)

virtual void	PrintHeader (ostream &os, vtkIndent indent)

virtual void	PrintTrailer (ostream &os, vtkIndent indent)

int	GetReferenceCount ()

Protected Member Functions
	vtkContourLineInterpolator ()

	~vtkContourLineInterpolator ()

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 &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

typedef vtkObject	Superclass

static int	IsTypeOf (const char *type)

static vtkContourLineInterpolator *	SafeDownCast (vtkObjectBase *o)

virtual int	IsA (const char *type)

vtkContourLineInterpolator *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

virtual vtkObjectBase *	NewInstanceInternal () const

Additional Inherited Members
Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

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 Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

Defines API for interpolating/modifying nodes from a vtkContourRepresentation.

vtkContourLineInterpolator is an abstract base class for interpolators that work are used by the contour representation class to interpolate and/or modify nodes in a contour. Subclasses must override the virtual method: InterpolateLine. This is used by the contour representation to give the interpolator a chance to define an interpolation scheme between nodes. See vtkBezierContourLineInterpolator for a concrete implementation. Subclasses may also override, UpdateNode. This provides a way for the representation to give the interpolator a chance to modify the nodes, as the user constructs the contours. For instance a sticky contour widget may be implemented that moves nodes to nearby regions of high gradient, to be used in contour guided segmentation.

Definition at line 42 of file vtkContourLineInterpolator.h.

Member Typedef Documentation

typedef vtkObject vtkContourLineInterpolator::Superclass

Standard methods for instances of this class.

Definition at line 47 of file vtkContourLineInterpolator.h.

Constructor & Destructor Documentation

vtkContourLineInterpolator::vtkContourLineInterpolator ( )

protected

vtkContourLineInterpolator::~vtkContourLineInterpolator ( )

protected

Member Function Documentation

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

static

Standard methods for instances of this class.

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

virtual

Standard methods for instances of this class.

Reimplemented from vtkObject.

Reimplemented in vtkTerrainContourLineInterpolator, vtkDijkstraImageContourLineInterpolator, vtkPolygonalSurfaceContourLineInterpolator, vtkLinearContourLineInterpolator, vtkBezierContourLineInterpolator, and vtkPolyDataContourLineInterpolator.

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

static

Standard methods for instances of this class.

virtual vtkObjectBase* vtkContourLineInterpolator::NewInstanceInternal ( ) const

protectedvirtual

Standard methods for instances of this class.

Reimplemented from vtkObject.

Reimplemented in vtkTerrainContourLineInterpolator, vtkDijkstraImageContourLineInterpolator, vtkPolygonalSurfaceContourLineInterpolator, vtkLinearContourLineInterpolator, vtkBezierContourLineInterpolator, and vtkPolyDataContourLineInterpolator.

vtkContourLineInterpolator* vtkContourLineInterpolator::NewInstance ( ) const

Standard methods for instances of this class.

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

virtual

Standard methods for instances of this class.

Reimplemented from vtkObject.

Reimplemented in vtkTerrainContourLineInterpolator, vtkDijkstraImageContourLineInterpolator, vtkPolygonalSurfaceContourLineInterpolator, vtkLinearContourLineInterpolator, and vtkPolyDataContourLineInterpolator.

virtual int vtkContourLineInterpolator::InterpolateLine	(	vtkRenderer *	ren,
		vtkContourRepresentation *	rep,
		int	idx1,
		int	idx2
	)

pure virtual

Subclasses that wish to interpolate a line segment must implement this. For instance vtkBezierContourLineInterpolator adds nodes between idx1 and idx2, that allow the contour to adhere to a bezier curve.

Implemented in vtkTerrainContourLineInterpolator, vtkDijkstraImageContourLineInterpolator, vtkPolygonalSurfaceContourLineInterpolator, vtkLinearContourLineInterpolator, vtkPolyDataContourLineInterpolator, and vtkBezierContourLineInterpolator.

virtual int vtkContourLineInterpolator::UpdateNode	(	vtkRenderer *	,
		vtkContourRepresentation *	,
		double *	vtkNotUsednode,
		int	vtkNotUsedidx
	)

virtual

The interpolator is given a chance to update the node. For instance, the vtkImageContourLineInterpolator updates the idx'th node in the contour, so it automatically sticks to edges in the vicinity as the user constructs the contour. Returns 0 if the node (world position) is unchanged.

Reimplemented in vtkTerrainContourLineInterpolator, vtkPolygonalSurfaceContourLineInterpolator, and vtkPolyDataContourLineInterpolator.

virtual void vtkContourLineInterpolator::GetSpan	(	int	nodeIndex,
		vtkIntArray *	nodeIndices,
		vtkContourRepresentation *	rep
	)

virtual

Span of the interpolator. ie. the number of control points its supposed to interpolate given a node. The first argument is the current nodeIndex. ie, you'd be trying to interpolate between nodes "nodeIndex" and "nodeIndex-1", unless you're closing the contour in which case, you're trying to interpolate "nodeIndex" and "Node=0". The node span is returned in a vtkIntArray. The default node span is 1 (ie. nodeIndices is a 2 tuple (nodeIndex, nodeIndex-1)). However, it need not always be 1. For instance, cubic spline interpolators, which have a span of 3 control points, it can be larger. See vtkBezierContourLineInterpolator for instance.

Reimplemented in vtkBezierContourLineInterpolator.

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

dox/Interaction/Widgets/vtkContourLineInterpolator.h

Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation