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 vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkThinPlateSplineTransform *	NewInstance () const

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

vtkMTimeType	GetMTime () override
	Get the MTime.

vtkAbstractTransform *	MakeTransform () override
	Make another transform of the same type.


virtual double	GetSigma ()
	Specify the 'stiffness' of the spline.

virtual void	SetSigma (double)
	Specify the 'stiffness' of the spline.


void	SetBasis (int basis)
	Specify the radial basis function to use.

virtual int	GetBasis ()
	Specify the radial basis function to use.

void	SetBasisToR ()
	Specify the radial basis function to use.

void	SetBasisToR2LogR ()
	Specify the radial basis function to use.

const char *	GetBasisAsString ()
	Specify the radial basis function to use.


void	SetBasisFunction (double(*U)(double r))
	Set the radial basis function to a custom function.

void	SetBasisDerivative (double(*dUdr)(double r, double &dU))
	Set the radial basis function to a custom function.


void	SetSourceLandmarks (vtkPoints *source)
	Set the source landmarks for the warp.

virtual vtkPoints *	GetSourceLandmarks ()
	Set the source landmarks for the warp.


void	SetTargetLandmarks (vtkPoints *target)
	Set the target landmarks for the warp.

virtual vtkPoints *	GetTargetLandmarks ()
	Set the target landmarks for the warp.


virtual bool	GetRegularizeBulkTransform ()
	Get/set whether the bulk linear transformation matrix is regularized.

virtual void	SetRegularizeBulkTransform (bool)
	Get/set whether the bulk linear transformation matrix is regularized.

virtual void	RegularizeBulkTransformOn ()
	Get/set whether the bulk linear transformation matrix is regularized.

virtual void	RegularizeBulkTransformOff ()
	Get/set whether the bulk linear transformation matrix is regularized.

Public Member Functions inherited from vtkWarpTransform
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkWarpTransform *	NewInstance () const

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

void	Inverse () override
	Invert the transformation.

virtual vtkTypeBool	GetInverseFlag ()
	Get the inverse flag of the transformation.

virtual void	SetInverseTolerance (double)
	Set the tolerance for inverse transformation.

virtual double	GetInverseTolerance ()
	Set the tolerance for inverse transformation.

virtual void	SetInverseIterations (int)
	Set the maximum number of iterations for the inverse transformation.

virtual int	GetInverseIterations ()
	Set the maximum number of iterations for the inverse transformation.

void	InternalTransformPoint (const float in[3], float out[3]) override
	This will calculate the transformation without calling Update.

void	InternalTransformPoint (const double in[3], double out[3]) override
	This will calculate the transformation without calling Update.

void	InternalTransformDerivative (const float in[3], float out[3], float derivative[3][3]) override
	This will calculate the transformation, as well as its derivative without calling Update.

void	InternalTransformDerivative (const double in[3], double out[3], double derivative[3][3]) override
	This will calculate the transformation, as well as its derivative without calling Update.

void	TemplateTransformPoint (const float in[3], float out[3])
	Do not use these methods.

void	TemplateTransformPoint (const double in[3], double out[3])
	Do not use these methods.

void	TemplateTransformPoint (const float in[3], float out[3], float derivative[3][3])
	Do not use these methods.

void	TemplateTransformPoint (const double in[3], double out[3], double derivative[3][3])
	Do not use these methods.

void	TemplateTransformInverse (const float in[3], float out[3])
	Do not use these methods.

void	TemplateTransformInverse (const double in[3], double out[3])
	Do not use these methods.

void	TemplateTransformInverse (const float in[3], float out[3], float derivative[3][3])
	Do not use these methods.

void	TemplateTransformInverse (const double in[3], double out[3], double derivative[3][3])
	Do not use these methods.

Public Member Functions inherited from vtkAbstractTransform
virtual vtkTypeBool	IsA (const char *type)
	Return 1 if this class is the same type of (or a subclass of) the named class.

vtkAbstractTransform *	NewInstance () const

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

void	TransformPoint (const float in[3], float out[3])
	Apply the transformation to a coordinate.

void	TransformPoint (const double in[3], double out[3])
	Apply the transformation to a double-precision coordinate.

double *	TransformPoint (double x, double y, double z)
	Apply the transformation to a double-precision coordinate.

double *	TransformPoint (const double point[3])

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)
	Apply the transformation to a series of points, and append the results to outPts.

virtual void	TransformPointsNormalsVectors (vtkPoints inPts, vtkPoints outPts, vtkDataArray inNms, vtkDataArray outNms, vtkDataArray inVrs, vtkDataArray outVrs, int nOptionalVectors=0, vtkDataArray inVrsArr=nullptr, vtkDataArray outVrsArr=nullptr)
	Apply the transformation to a combination of points, normals and vectors.

vtkAbstractTransform *	GetInverse ()
	Get the inverse of this transform.

void	SetInverse (vtkAbstractTransform *transform)
	Set a transformation that this transform will be the inverse of.

virtual void	Inverse ()=0
	Invert the transformation.

void	DeepCopy (vtkAbstractTransform *)
	Copy this transform from another of the same type.

void	Update ()
	Update the transform to account for any changes which have been made.

virtual vtkAbstractTransform *	MakeTransform ()=0
	Make another transform of the same type.

virtual int	CircuitCheck (vtkAbstractTransform *transform)
	Check for self-reference.

vtkMTimeType	GetMTime () override
	Override GetMTime necessary because of inverse transforms.

void	UnRegister (vtkObjectBase *O) override
	Needs a special UnRegister() implementation to avoid circular references.

float *	TransformFloatPoint (float x, float y, float z)
	Apply the transformation to an (x,y,z) coordinate.

float *	TransformFloatPoint (const float point[3])
	Apply the transformation to an (x,y,z) coordinate.

double *	TransformDoublePoint (double x, double y, double z)
	Apply the transformation to a double-precision (x,y,z) coordinate.

double *	TransformDoublePoint (const double point[3])
	Apply the transformation to a double-precision (x,y,z) coordinate.

void	TransformNormalAtPoint (const float point[3], const float in[3], float out[3])
	Apply the transformation to a normal at the specified vertex.

void	TransformNormalAtPoint (const double point[3], const double in[3], double out[3])
	Apply the transformation to a normal at the specified vertex.

double *	TransformDoubleNormalAtPoint (const double point[3], const double normal[3])
	Apply the transformation to a double-precision normal at the specified vertex.

float *	TransformFloatNormalAtPoint (const float point[3], const float normal[3])
	Apply the transformation to a single-precision normal at the specified vertex.

void	TransformVectorAtPoint (const float point[3], const float in[3], float out[3])
	Apply the transformation to a vector at the specified vertex.

void	TransformVectorAtPoint (const double point[3], const double in[3], double out[3])
	Apply the transformation to a vector at the specified vertex.

double *	TransformDoubleVectorAtPoint (const double point[3], const double vector[3])
	Apply the transformation to a double-precision vector at the specified vertex.

float *	TransformFloatVectorAtPoint (const float point[3], const float vector[3])
	Apply the transformation to a single-precision vector at the specified vertex.

Public Member Functions inherited from vtkObject
	vtkBaseTypeMacro (vtkObject, vtkObjectBase)

virtual void	DebugOn ()
	Turn debugging output on.

virtual void	DebugOff ()
	Turn debugging output off.

bool	GetDebug ()
	Get the value of the debug flag.

void	SetDebug (bool debugFlag)
	Set the value of the debug flag.

virtual void	Modified ()
	Update the modification time for this object.

virtual vtkMTimeType	GetMTime ()
	Return this object's modified time.

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

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)

vtkTypeBool	InvokeEvent (unsigned long event)

vtkTypeBool	InvokeEvent (const char *event)

std::string	GetObjectDescription () const override
	The object description printed in messages and PrintSelf output.

unsigned long	AddObserver (unsigned long event, vtkCommand *, float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

unsigned long	AddObserver (const char event, vtkCommand , float priority=0.0f)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkCommand *	GetCommand (unsigned long tag)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObserver (vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

void	RemoveObservers (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (unsigned long event, vtkCommand *)
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

vtkTypeBool	HasObserver (const char event, vtkCommand )
	Allow people to add/remove/invoke observers (callbacks) to any VTK object.

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.

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.

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.

vtkTypeBool	InvokeEvent (unsigned long event, void *callData)
	This method invokes an event and return whether the event was aborted or not.

vtkTypeBool	InvokeEvent (const char event, void callData)
	This method invokes an event and return whether the event was aborted or not.

virtual void	SetObjectName (const std::string &objectName)
	Set/get the name of this object for reporting purposes.

virtual std::string	GetObjectName () const
	Set/get the name of this object for reporting purposes.

Public Member Functions inherited from vtkObjectBase
const char *	GetClassName () const
	Return the class name as a string.

virtual std::string	GetObjectDescription () const
	The object description printed in messages and PrintSelf output.

virtual vtkTypeBool	IsA (const char *name)
	Return 1 if this class is the same type of (or a subclass of) the named class.

virtual vtkIdType	GetNumberOfGenerationsFromBase (const char *name)
	Given the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

virtual void	Delete ()
	Delete a VTK object.

virtual void	FastDelete ()
	Delete a reference to this object.

void	InitializeObjectBase ()

void	Print (ostream &os)
	Print an object to an ostream.

void	Register (vtkObjectBase *o)
	Increase the reference count (mark as used by another object).

virtual void	UnRegister (vtkObjectBase *o)
	Decrease the reference count (release by another object).

int	GetReferenceCount ()
	Return the current reference count of this object.

void	SetReferenceCount (int)
	Sets the reference count.

bool	GetIsInMemkind () const
	A local state flag that remembers whether this object lives in the normal or extended memory space.

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

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

virtual bool	UsesGarbageCollector () const
	Indicate whether the class uses `vtkGarbageCollector` or not.

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

static vtkThinPlateSplineTransform *	SafeDownCast (vtkObjectBase *o)

static vtkThinPlateSplineTransform *	New ()

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

static vtkWarpTransform *	SafeDownCast (vtkObjectBase *o)

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

static vtkAbstractTransform *	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.

static void	BreakOnError ()
	This method is called when vtkErrorMacro executes.

static void	SetGlobalWarningDisplay (vtkTypeBool val)
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOn ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static void	GlobalWarningDisplayOff ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

static vtkTypeBool	GetGlobalWarningDisplay ()
	This is a global flag that controls whether any debug, warning or error messages are displayed.

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.

static vtkIdType	GetNumberOfGenerationsFromBaseType (const char *name)
	Given a the name of a base class of this class type, return the distance of inheritance between this class type and the named class (how many generations of inheritance are there between this class and the named class).

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

static void	SetMemkindDirectory (const char *directoryname)
	The name of a directory, ideally mounted -o dax, to memory map an extended memory space within.

static bool	GetUsingMemkind ()
	A global state flag that controls whether vtkObjects are constructed in the usual way (the default) or within the extended memory space.

Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkThinPlateSplineTransform ()

	~vtkThinPlateSplineTransform () override

void	InternalUpdate () override
	Prepare the transformation for application.

void	InternalDeepCopy (vtkAbstractTransform *transform) override
	This method does no type checking, use DeepCopy instead.

void	ForwardTransformPoint (const float in[3], float out[3]) override
	If the InverseFlag is set to 0, then a call to InternalTransformPoint results in a call to ForwardTransformPoint.

void	ForwardTransformPoint (const double in[3], double out[3]) override
	If the InverseFlag is set to 0, then a call to InternalTransformPoint results in a call to ForwardTransformPoint.

void	ForwardTransformDerivative (const float in[3], float out[3], float derivative[3][3]) override
	Calculate the forward transform as well as the derivative.

void	ForwardTransformDerivative (const double in[3], double out[3], double derivative[3][3]) override
	Calculate the forward transform as well as the derivative.

Protected Member Functions inherited from vtkWarpTransform
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkWarpTransform ()

	~vtkWarpTransform () override

virtual void	InverseTransformPoint (const float in[3], float out[3])
	If the InverseFlag is set to 1, then a call to InternalTransformPoint results in a call to InverseTransformPoint.

virtual void	InverseTransformPoint (const double in[3], double out[3])
	If the InverseFlag is set to 1, then a call to InternalTransformPoint results in a call to InverseTransformPoint.

virtual void	InverseTransformDerivative (const float in[3], float out[3], float derivative[3][3])
	Calculate the inverse transform as well as the derivative of the forward transform (that's correct: the derivative of the forward transform, not of the inverse transform)

virtual void	InverseTransformDerivative (const double in[3], double out[3], double derivative[3][3])
	Calculate the inverse transform as well as the derivative of the forward transform (that's correct: the derivative of the forward transform, not of the inverse transform)

Protected Member Functions inherited from vtkAbstractTransform
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkAbstractTransform ()

	~vtkAbstractTransform () override

virtual void	InternalUpdate ()
	Perform any subclass-specific Update.

virtual void	InternalDeepCopy (vtkAbstractTransform *)
	Perform any subclass-specific DeepCopy.

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.

void	InternalReleaseFocus ()
	These methods allow a command to exclusively grab all events.

Protected Member Functions inherited from vtkObjectBase
	vtkObjectBase ()

virtual	~vtkObjectBase ()

virtual void	RegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	UnRegisterInternal (vtkObjectBase *, vtkTypeBool check)

virtual void	ReportReferences (vtkGarbageCollector *)

virtual void	ObjectFinalize ()

	vtkObjectBase (const vtkObjectBase &)

void	operator= (const vtkObjectBase &)

Protected Attributes
double	Sigma

vtkPoints *	SourceLandmarks

vtkPoints *	TargetLandmarks

double(*	BasisFunction )(double r)

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

int	Basis

int	NumberOfPoints

double **	MatrixW

bool	RegularizeBulkTransform

Protected Attributes inherited from vtkWarpTransform
vtkTypeBool	InverseFlag

int	InverseIterations

double	InverseTolerance

Protected Attributes inherited from vtkAbstractTransform
float	InternalFloatPoint [3]

double	InternalDoublePoint [3]

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

std::string	ObjectName

Protected Attributes inherited from vtkObjectBase
std::atomic< int32_t >	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Additional Inherited Members
Static Protected Member Functions inherited from vtkObjectBase
static vtkMallocingFunction	GetCurrentMallocFunction ()

static vtkReallocingFunction	GetCurrentReallocFunction ()

static vtkFreeingFunction	GetCurrentFreeFunction ()

static vtkFreeingFunction	GetAlternateFreeFunction ()

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. Forward transform can be computed for any configuration by disabling bulk transform regularization.

See also: vtkGridTransform vtkGeneralTransform

Online Examples:

ThinPlateSplineTransform

Tests:: vtkThinPlateSplineTransform (Tests)

Definition at line 61 of file vtkThinPlateSplineTransform.h.

Member Typedef Documentation

◆ Superclass

typedef vtkWarpTransform vtkThinPlateSplineTransform::Superclass

Definition at line 64 of file vtkThinPlateSplineTransform.h.

Constructor & Destructor Documentation

◆ vtkThinPlateSplineTransform()

vtkThinPlateSplineTransform::vtkThinPlateSplineTransform ( )

protected

◆ ~vtkThinPlateSplineTransform()

vtkThinPlateSplineTransform::~vtkThinPlateSplineTransform ( )

overrideprotected

Member Function Documentation

◆ IsTypeOf()

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

static

◆ IsA()

virtual vtkTypeBool vtkThinPlateSplineTransform::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 vtkWarpTransform.

◆ SafeDownCast()

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

static

◆ NewInstanceInternal()

virtual vtkObjectBase * vtkThinPlateSplineTransform::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkWarpTransform.

◆ NewInstance()

vtkThinPlateSplineTransform * vtkThinPlateSplineTransform::NewInstance ( ) const

◆ PrintSelf()

void vtkThinPlateSplineTransform::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 vtkAbstractTransform.

◆ New()

static vtkThinPlateSplineTransform * vtkThinPlateSplineTransform::New ( )

static

◆ GetSigma()

virtual double vtkThinPlateSplineTransform::GetSigma ( )

virtual

Specify the 'stiffness' of the spline.

The default is 1.0.

◆ SetSigma()

virtual void vtkThinPlateSplineTransform::SetSigma ( double )

virtual

Specify the 'stiffness' of the spline.

The default is 1.0.