a nonlinear warp transformation More...

#include <vtkThinPlateSplineTransform.h>

Inheritance diagram for vtkThinPlateSplineTransform:

Collaboration diagram for vtkThinPlateSplineTransform:

Public Types
typedef vtkWarpTransform	Superclass

Public Types inherited from vtkWarpTransform
typedef vtkAbstractTransform	Superclass

Public Types inherited from vtkAbstractTransform
typedef vtkObject	Superclass

Public Member Functions
virtual int	IsA (const char *type)

vtkThinPlateSplineTransform *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

unsigned long	GetMTime ()

vtkAbstractTransform *	MakeTransform ()


virtual double	GetSigma ()

virtual void	SetSigma (double)


void	SetBasis (int basis)

virtual int	GetBasis ()

void	SetBasisToR ()

void	SetBasisToR2LogR ()

const char *	GetBasisAsString ()


void	SetBasisFunction (double(*U)(double r))

void	SetBasisDerivative (double(*dUdr)(double r, double &dU))


void	SetSourceLandmarks (vtkPoints *source)

virtual vtkPoints *	GetSourceLandmarks ()


void	SetTargetLandmarks (vtkPoints *target)

virtual vtkPoints *	GetTargetLandmarks ()

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

void	PrintSelf (ostream &os, vtkIndent indent)

void	Inverse ()

virtual int	GetInverseFlag ()

virtual void	SetInverseTolerance (double)

virtual double	GetInverseTolerance ()

virtual void	SetInverseIterations (int)

virtual int	GetInverseIterations ()

void	InternalTransformPoint (const float in[3], float out[3])

void	InternalTransformPoint (const double in[3], double out[3])

void	InternalTransformDerivative (const float in[3], float out[3], float derivative[3][3])

void	InternalTransformDerivative (const double in[3], double out[3], double derivative[3][3])

void	TemplateTransformPoint (const float in[3], float out[3])

void	TemplateTransformPoint (const double in[3], double out[3])

void	TemplateTransformPoint (const float in[3], float out[3], float derivative[3][3])

void	TemplateTransformPoint (const double in[3], double out[3], double derivative[3][3])

void	TemplateTransformInverse (const float in[3], float out[3])

void	TemplateTransformInverse (const double in[3], double out[3])

void	TemplateTransformInverse (const float in[3], float out[3], float derivative[3][3])

void	TemplateTransformInverse (const double in[3], double out[3], double derivative[3][3])

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

void	PrintSelf (ostream &os, vtkIndent indent)

double *	TransformNormalAtPoint (const double point[3], const double normal[3])

double *	TransformVectorAtPoint (const double point[3], const double vector[3])

virtual void	TransformPoints (vtkPoints inPts, vtkPoints outPts)

vtkAbstractTransform *	GetInverse ()

void	SetInverse (vtkAbstractTransform *transform)

void	DeepCopy (vtkAbstractTransform *)

void	Update ()

virtual int	CircuitCheck (vtkAbstractTransform *transform)

unsigned long	GetMTime ()

virtual void	UnRegister (vtkObjectBase *O)

void	TransformPoint (const float in[3], float out[3])

void	TransformPoint (const double in[3], double out[3])

double *	TransformPoint (double x, double y, double z)

double *	TransformPoint (const double point[3])

float *	TransformFloatPoint (float x, float y, float z)

float *	TransformFloatPoint (const float point[3])

double *	TransformDoublePoint (double x, double y, double z)

double *	TransformDoublePoint (const double point[3])

void	TransformNormalAtPoint (const float point[3], const float in[3], float out[3])

void	TransformNormalAtPoint (const double point[3], const double in[3], double out[3])

double *	TransformDoubleNormalAtPoint (const double point[3], const double normal[3])

float *	TransformFloatNormalAtPoint (const float point[3], const float normal[3])

void	TransformVectorAtPoint (const float point[3], const float in[3], float out[3])

void	TransformVectorAtPoint (const double point[3], const double in[3], double out[3])

double *	TransformDoubleVectorAtPoint (const double point[3], const double vector[3])

float *	TransformFloatVectorAtPoint (const float point[3], const float vector[3])

virtual void	TransformPointsNormalsVectors (vtkPoints inPts, vtkPoints outPts, vtkDataArray inNms, vtkDataArray outNms, vtkDataArray inVrs, vtkDataArray outVrs)

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

static vtkThinPlateSplineTransform *	SafeDownCast (vtkObjectBase *o)

static vtkThinPlateSplineTransform *	New ()

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

static vtkWarpTransform *	SafeDownCast (vtkObjectBase *o)

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

static vtkAbstractTransform *	SafeDownCast (vtkObjectBase *o)

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkThinPlateSplineTransform ()

	~vtkThinPlateSplineTransform ()

void	InternalUpdate ()

void	InternalDeepCopy (vtkAbstractTransform *transform)

void	ForwardTransformPoint (const float in[3], float out[3])

void	ForwardTransformPoint (const double in[3], double out[3])

void	ForwardTransformDerivative (const float in[3], float out[3], float derivative[3][3])

void	ForwardTransformDerivative (const double in[3], double out[3], double derivative[3][3])

Protected Member Functions inherited from vtkWarpTransform
	vtkWarpTransform ()

	~vtkWarpTransform ()

virtual void	InverseTransformPoint (const float in[3], float out[3])

virtual void	InverseTransformPoint (const double in[3], double out[3])

virtual void	InverseTransformDerivative (const float in[3], float out[3], float derivative[3][3])

virtual void	InverseTransformDerivative (const double in[3], double out[3], double derivative[3][3])

Protected Member Functions inherited from vtkAbstractTransform
	vtkAbstractTransform ()

	~vtkAbstractTransform ()

Protected Attributes
double	Sigma

vtkPoints *	SourceLandmarks

vtkPoints *	TargetLandmarks

double(*	BasisFunction )(double r)

double(*	BasisDerivative )(double r, double &dUdr)

int	Basis

int	NumberOfPoints

double **	MatrixW

Protected Attributes inherited from vtkWarpTransform
int	InverseFlag

int	InverseIterations

double	InverseTolerance

Protected Attributes inherited from vtkAbstractTransform
float	InternalFloatPoint [3]

double	InternalDoublePoint [3]

Detailed Description

a nonlinear warp transformation

vtkThinPlateSplineTransform describes a nonlinear warp transform defined by a set of source and target landmarks. Any point on the mesh close to a source landmark will be moved to a place close to the corresponding target landmark. The points in between are interpolated smoothly using Bookstein's Thin Plate Spline algorithm.

To obtain a correct TPS warp, use the R2LogR kernel if your data is 2D, and the R kernel if your data is 3D. Or you can specify your own RBF. (Hence this class is more general than a pure TPS transform.)

Warning: 1) The inverse transform is calculated using an iterative method, and is several times more expensive than the forward transform. 2) Whenever you add, subtract, or set points you must call Modified() on the vtkPoints object, or the transformation might not update. 3) Collinear point configurations (except those that lie in the XY plane) result in an unstable transformation.

See Also: vtkGridTransform vtkGeneralTransform

Tests:: vtkThinPlateSplineTransform (Tests)

Definition at line 51 of file vtkThinPlateSplineTransform.h.

Member Typedef Documentation

typedef vtkWarpTransform vtkThinPlateSplineTransform::Superclass

Definition at line 54 of file vtkThinPlateSplineTransform.h.

Constructor & Destructor Documentation

vtkThinPlateSplineTransform::vtkThinPlateSplineTransform ( )

protected

vtkThinPlateSplineTransform::~vtkThinPlateSplineTransform ( )

protected

Member Function Documentation

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

static

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

virtual

Reimplemented from vtkWarpTransform.

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

static

virtual vtkObjectBase* vtkThinPlateSplineTransform::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkWarpTransform.

vtkThinPlateSplineTransform* vtkThinPlateSplineTransform::NewInstance ( ) const

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

static vtkThinPlateSplineTransform* vtkThinPlateSplineTransform::New ( )

static

virtual double vtkThinPlateSplineTransform::GetSigma ( )

virtual

Specify the 'stiffness' of the spline. The default is 1.0.

virtual void vtkThinPlateSplineTransform::SetSigma ( double )

virtual

Specify the 'stiffness' of the spline. The default is 1.0.

void vtkThinPlateSplineTransform::SetBasis ( int basis )