computes an interpolating spline using a Kochanek basis. More...

#include <vtkKochanekSpline.h>

Inheritance diagram for vtkKochanekSpline:

Collaboration diagram for vtkKochanekSpline:

Public Types
typedef vtkSpline	Superclass

Public Types inherited from vtkSpline
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...

vtkKochanekSpline *	NewInstance () const

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

void	Compute () override
	Compute Kochanek Spline coefficients. More...

double	Evaluate (double t) override
	Evaluate a 1D Kochanek spline. More...

void	DeepCopy (vtkSpline *s) override
	Deep copy of cardinal spline data. More...


virtual void	SetDefaultBias (double)
	Set the bias for all points. More...

virtual double	GetDefaultBias ()
	Set the bias for all points. More...


virtual void	SetDefaultTension (double)
	Set the tension for all points. More...

virtual double	GetDefaultTension ()
	Set the tension for all points. More...


virtual void	SetDefaultContinuity (double)
	Set the continuity for all points. More...

virtual double	GetDefaultContinuity ()
	Set the continuity for all points. More...

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

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

int	GetNumberOfPoints ()
	Return the number of points inserted thus far. More...

void	AddPoint (double t, double x)
	Add a pair of points to be fit with the spline. More...

void	RemovePoint (double t)
	Remove a point from the data to be fit with the spline. More...

void	RemoveAllPoints ()
	Remove all points from the data. More...

vtkMTimeType	GetMTime () override
	Return the MTime also considering the Piecewise function. More...

void	SetParametricRange (double tMin, double tMax)
	Set/Get the parametric range. More...

void	SetParametricRange (double tRange[2])
	Set/Get the parametric range. More...

void	GetParametricRange (double tRange[2]) const
	Set/Get the parametric range. More...

virtual void	SetClampValue (vtkTypeBool)
	Set/Get ClampValue. More...

virtual vtkTypeBool	GetClampValue ()
	Set/Get ClampValue. More...

virtual void	ClampValueOn ()
	Set/Get ClampValue. More...

virtual void	ClampValueOff ()
	Set/Get ClampValue. More...

virtual void	SetClosed (vtkTypeBool)
	Control whether the spline is open or closed. More...

virtual vtkTypeBool	GetClosed ()
	Control whether the spline is open or closed. More...

virtual void	ClosedOn ()
	Control whether the spline is open or closed. More...

virtual void	ClosedOff ()
	Control whether the spline is open or closed. More...

virtual void	SetLeftConstraint (int)
	Set the type of constraint of the left(right) end points. More...

virtual int	GetLeftConstraint ()
	Set the type of constraint of the left(right) end points. More...

virtual void	SetRightConstraint (int)
	Set the type of constraint of the left(right) end points. More...

virtual int	GetRightConstraint ()
	Set the type of constraint of the left(right) end points. More...

virtual void	SetLeftValue (double)
	The values of the derivative on the left and right sides. More...

virtual double	GetLeftValue ()
	The values of the derivative on the left and right sides. More...

virtual void	SetRightValue (double)
	The values of the derivative on the left and right sides. More...

virtual double	GetRightValue ()
	The values of the derivative on the left and right sides. 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...

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 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...

void	PrintRevisions (ostream &)
	Legacy. 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 vtkKochanekSpline *	SafeDownCast (vtkObjectBase *o)

static vtkKochanekSpline *	New ()
	Construct a KochanekSpline with the following defaults: DefaultBias = 0, DefaultTension = 0, DefaultContinuity = 0. More...

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

static vtkSpline *	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 vtkObjectBase *	New ()
	Create an object with Debug turned off, modified time initialized to zero, and reference counting on. More...

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkKochanekSpline ()

	~vtkKochanekSpline () override

void	Fit1D (int n, double x, double y, double tension, double bias, double continuity, double coefficients[][4], int leftConstraint, double leftValue, int rightConstraint, double rightValue)

Protected Member Functions inherited from vtkSpline
	vtkSpline ()

	~vtkSpline () override

double	ComputeLeftDerivative ()

double	ComputeRightDerivative ()

int	FindIndex (int size, double t)

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	CollectRevisions (ostream &)

virtual void	ReportReferences (vtkGarbageCollector *)

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
double	DefaultBias

double	DefaultTension

double	DefaultContinuity

Protected Attributes inherited from vtkSpline
vtkMTimeType	ComputeTime

vtkTypeBool	ClampValue

double *	Intervals

double *	Coefficients

int	LeftConstraint

double	LeftValue

int	RightConstraint

double	RightValue

vtkPiecewiseFunction *	PiecewiseFunction

vtkTypeBool	Closed

double	ParametricRange [2]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

computes an interpolating spline using a Kochanek basis.

Implements the Kochanek interpolating spline described in: Kochanek, D., Bartels, R., "Interpolating Splines with Local Tension, Continuity, and Bias Control," Computer Graphics, vol. 18, no. 3, pp. 33-41, July 1984. These splines give the user more control over the shape of the curve than the cardinal splines implemented in vtkCardinalSpline. Three parameters can be specified. All have a range from -1 to 1.

Tension controls how sharply the curve bends at an input point. A value of -1 produces more slack in the curve. A value of 1 tightens the curve.

Continuity controls the continuity of the first derivative at input points.

Bias controls the direction of the curve at it passes through an input point. A value of -1 undershoots the point while a value of 1 overshoots the point.

These three parameters give the user broad control over the shape of the interpolating spline. The original Kochanek paper describes the effects nicely and is recommended reading.

See also: vtkSpline vtkCardinalSpline

Examples:: vtkKochanekSpline (Examples)

Tests:: vtkKochanekSpline (Tests)

Definition at line 57 of file vtkKochanekSpline.h.

Member Typedef Documentation

typedef vtkSpline vtkKochanekSpline::Superclass

Definition at line 60 of file vtkKochanekSpline.h.

Constructor & Destructor Documentation

vtkKochanekSpline::vtkKochanekSpline ( )

protected

vtkKochanekSpline::~vtkKochanekSpline ( )

inlineoverrideprotected

Definition at line 110 of file vtkKochanekSpline.h.

Member Function Documentation

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

static

virtual vtkTypeBool vtkKochanekSpline::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 vtkSpline.

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

static

virtual vtkObjectBase* vtkKochanekSpline::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkSpline.

vtkKochanekSpline* vtkKochanekSpline::NewInstance ( ) const

void vtkKochanekSpline::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 vtkObjectBase.

static vtkKochanekSpline* vtkKochanekSpline::New ( )

static

Construct a KochanekSpline with the following defaults: DefaultBias = 0, DefaultTension = 0, DefaultContinuity = 0.

void vtkKochanekSpline::Compute ( )

overridevirtual

Compute Kochanek Spline coefficients.

Implements vtkSpline.

double vtkKochanekSpline::Evaluate ( double t )

overridevirtual

Evaluate a 1D Kochanek spline.

Implements vtkSpline.

virtual void vtkKochanekSpline::SetDefaultBias ( double )

virtual

Set the bias for all points.

Default is 0.

virtual double vtkKochanekSpline::GetDefaultBias ( )

virtual

Set the bias for all points.

Default is 0.

virtual void vtkKochanekSpline::SetDefaultTension ( double )

virtual

Set the tension for all points.

Default is 0.

virtual double vtkKochanekSpline::GetDefaultTension ( )

virtual

Set the tension for all points.

Default is 0.

virtual void vtkKochanekSpline::SetDefaultContinuity ( double )

virtual

Set the continuity for all points.

Default is 0.

virtual double vtkKochanekSpline::GetDefaultContinuity ( )

virtual

Set the continuity for all points.

Default is 0.

void vtkKochanekSpline::DeepCopy ( vtkSpline * s )

overridevirtual

Deep copy of cardinal spline data.

Reimplemented from vtkSpline.

void vtkKochanekSpline::Fit1D	(	int	n,
		double *	x,
		double *	y,
		double	tension,
		double	bias,
		double	continuity,
		double	coefficients[][4],
		int	leftConstraint,
		double	leftValue,
		int	rightConstraint,
		double	rightValue
	)

protected

Member Data Documentation

double vtkKochanekSpline::DefaultBias

protected

Definition at line 116 of file vtkKochanekSpline.h.

double vtkKochanekSpline::DefaultTension

protected

Definition at line 117 of file vtkKochanekSpline.h.

double vtkKochanekSpline::DefaultContinuity

protected

Definition at line 118 of file vtkKochanekSpline.h.

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

/home/demarle/Source/VTK/release/8.2/build/Utilities/Doxygen/dox/Common/ComputationalGeometry/vtkKochanekSpline.h

Public Types

Public Member Functions

Static Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation