superclass for all geometric transformations More...

#include <vtkAbstractTransform.h>

Inheritance diagram for vtkAbstractTransform:

Collaboration diagram for vtkAbstractTransform:

Public Types
typedef vtkObject	Superclass
Public Member Functions
virtual int	IsA (const char *type)
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)
virtual void	Inverse ()=0
void	DeepCopy (vtkAbstractTransform *)
void	Update ()
virtual vtkAbstractTransform *	MakeTransform ()=0
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)

virtual void	InternalTransformPoint (const float in[3], float out[3])=0
virtual void	InternalTransformPoint (const double in[3], double out[3])=0

virtual void	InternalTransformDerivative (const float in[3], float out[3], float derivative[3][3])=0
virtual void	InternalTransformDerivative (const double in[3], double out[3], double derivative[3][3])=0
Static Public Member Functions
static int	IsTypeOf (const char *type)
static vtkAbstractTransform *	SafeDownCast (vtkObjectBase *o)
Protected Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const
	vtkAbstractTransform ()
	~vtkAbstractTransform ()
virtual void	InternalUpdate ()
virtual void	InternalDeepCopy (vtkAbstractTransform *)
Protected Attributes
float	InternalFloatPoint [3]
double	InternalDoublePoint [3]

Detailed Description

superclass for all geometric transformations

vtkAbstractTransform is the superclass for all VTK geometric transformations. The VTK transform hierarchy is split into two major branches: warp transformations and homogeneous (including linear) transformations. The latter can be represented in terms of a 4x4 transformation matrix, the former cannot.

Transformations can be pipelined through two mechanisms:

1) GetInverse() returns the pipelined inverse of a transformation i.e. if you modify the original transform, any transform previously returned by the GetInverse() method will automatically update itself according to the change.

2) You can do pipelined concatenation of transformations through the vtkGeneralTransform class, the vtkPerspectiveTransform class, or the vtkTransform class.

See also:: vtkGeneralTransform vtkWarpTransform vtkHomogeneousTransform vtkLinearTransform vtkIdentityTransform vtkTransformPolyDataFilter vtkTransformFilter vtkImageReslice vtkImplicitFunction

Definition at line 49 of file vtkAbstractTransform.h.

Member Typedef Documentation

typedef vtkObject vtkAbstractTransform::Superclass

Reimplemented from vtkObject.

Reimplemented in vtkTransform, vtkPerspectiveTransform, vtkIterativeClosestPointTransform, vtkBSplineTransform, vtkThinPlateSplineTransform, vtkGridTransform, vtkSphericalTransform, vtkLandmarkTransform, vtkGeneralTransform, vtkGeoSphereTransform, vtkCylindricalTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkGeoTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkLinearTransform, and vtkWarpTransform.

Definition at line 53 of file vtkAbstractTransform.h.

Constructor & Destructor Documentation

vtkAbstractTransform::vtkAbstractTransform ( ) [protected]

vtkAbstractTransform::~vtkAbstractTransform ( ) [protected]

Member Function Documentation

static int vtkAbstractTransform::IsTypeOf ( const char * name ) [static]

Return 1 if this class type 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 vtkObject.

Reimplemented in vtkTransform, vtkPerspectiveTransform, vtkIterativeClosestPointTransform, vtkBSplineTransform, vtkThinPlateSplineTransform, vtkGridTransform, vtkSphericalTransform, vtkLandmarkTransform, vtkGeneralTransform, vtkGeoSphereTransform, vtkCylindricalTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkGeoTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkLinearTransform, and vtkWarpTransform.

virtual int vtkAbstractTransform::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 vtkObject.

Reimplemented in vtkTransform, vtkPerspectiveTransform, vtkIterativeClosestPointTransform, vtkBSplineTransform, vtkThinPlateSplineTransform, vtkGridTransform, vtkSphericalTransform, vtkLandmarkTransform, vtkGeneralTransform, vtkGeoSphereTransform, vtkCylindricalTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkGeoTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkLinearTransform, and vtkWarpTransform.

virtual vtkObjectBase* vtkAbstractTransform::NewInstanceInternal ( ) const [protected, virtual]

Reimplemented from vtkObject.

Reimplemented in vtkTransform, vtkPerspectiveTransform, vtkIterativeClosestPointTransform, vtkBSplineTransform, vtkThinPlateSplineTransform, vtkGridTransform, vtkSphericalTransform, vtkLandmarkTransform, vtkGeneralTransform, vtkGeoSphereTransform, vtkCylindricalTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkGeoTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkLinearTransform, and vtkWarpTransform.

void vtkAbstractTransform::PrintSelf	(	ostream &	os,
		vtkIndent	indent
	)		`[virtual]`

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 vtkObject.

Reimplemented in vtkTransform, vtkPerspectiveTransform, vtkIterativeClosestPointTransform, vtkBSplineTransform, vtkThinPlateSplineTransform, vtkGridTransform, vtkSphericalTransform, vtkLandmarkTransform, vtkGeneralTransform, vtkCylindricalTransform, vtkMatrixToHomogeneousTransform, vtkMatrixToLinearTransform, vtkGeoSphereTransform, vtkGeoTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkLinearTransform, and vtkWarpTransform.

void vtkAbstractTransform::TransformPoint	(	const float	in[3],
		float	out[3]
	)		`[inline]`

Apply the transformation to a coordinate. You can use the same array to store both the input and output point.

Definition at line 59 of file vtkAbstractTransform.h.

void vtkAbstractTransform::TransformPoint	(	const double	in[3],
		double	out[3]
	)		`[inline]`

Apply the transformation to a double-precision coordinate. You can use the same array to store both the input and output point.

Definition at line 66 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformPoint	(	double	x,
		double	y,
		double	z
	)		`[inline]`

Apply the transformation to a double-precision coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 73 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformPoint ( const double point[3] ) [inline]

Apply the transformation to a double-precision coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 75 of file vtkAbstractTransform.h.

float* vtkAbstractTransform::TransformFloatPoint	(	float	x,
		float	y,
		float	z
	)		`[inline]`

Apply the transformation to an (x,y,z) coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 82 of file vtkAbstractTransform.h.

float* vtkAbstractTransform::TransformFloatPoint ( const float point[3] ) [inline]

Apply the transformation to an (x,y,z) coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 88 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformDoublePoint	(	double	x,
		double	y,
		double	z
	)		`[inline]`

Apply the transformation to a double-precision (x,y,z) coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 95 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformDoublePoint ( const double point[3] ) [inline]

Apply the transformation to a double-precision (x,y,z) coordinate. Use this if you are programming in Python, tcl or Java.

Definition at line 101 of file vtkAbstractTransform.h.

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

Apply the transformation to a normal at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformNormal() instead.

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

Apply the transformation to a normal at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformNormal() instead.

double* vtkAbstractTransform::TransformNormalAtPoint	(	const double	point[3],
		const double	normal[3]
	)		`[inline]`

Definition at line 115 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformDoubleNormalAtPoint	(	const double	point[3],
		const double	normal[3]
	)		`[inline]`

Apply the transformation to a double-precision normal at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformDoubleNormal() instead.

Definition at line 124 of file vtkAbstractTransform.h.

float* vtkAbstractTransform::TransformFloatNormalAtPoint	(	const float	point[3],
		const float	normal[3]
	)		`[inline]`

Apply the transformation to a single-precision normal at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformFloatNormal() instead.

Definition at line 134 of file vtkAbstractTransform.h.

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

Apply the transformation to a vector at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformVector() instead.

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

Apply the transformation to a vector at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformVector() instead.

double* vtkAbstractTransform::TransformVectorAtPoint	(	const double	point[3],
		const double	vector[3]
	)		`[inline]`

Definition at line 150 of file vtkAbstractTransform.h.

double* vtkAbstractTransform::TransformDoubleVectorAtPoint	(	const double	point[3],
		const double	vector[3]
	)		`[inline]`

Apply the transformation to a double-precision vector at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformDoubleVector() instead.

Definition at line 159 of file vtkAbstractTransform.h.

float* vtkAbstractTransform::TransformFloatVectorAtPoint	(	const float	point[3],
		const float	vector[3]
	)		`[inline]`

Apply the transformation to a single-precision vector at the specified vertex. If the transformation is a vtkLinearTransform, you can use TransformFloatVector() instead.

Definition at line 169 of file vtkAbstractTransform.h.

virtual void vtkAbstractTransform::TransformPoints	(	vtkPoints *	inPts,
		vtkPoints *	outPts
	)		`[virtual]`

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

Reimplemented in vtkLinearTransform, vtkGeoTransform, vtkIdentityTransform, and vtkHomogeneousTransform.

virtual void vtkAbstractTransform::TransformPointsNormalsVectors	(	vtkPoints *	inPts,
		vtkPoints *	outPts,
		vtkDataArray *	inNms,
		vtkDataArray *	outNms,
		vtkDataArray *	inVrs,
		vtkDataArray *	outVrs
	)		`[virtual]`

Apply the transformation to a combination of points, normals and vectors.

Reimplemented in vtkLinearTransform, vtkIdentityTransform, and vtkHomogeneousTransform.

vtkAbstractTransform* vtkAbstractTransform::GetInverse ( )

Get the inverse of this transform. If you modify this transform, the returned inverse transform will automatically update. If you want the inverse of a vtkTransform, you might want to use GetLinearInverse() instead which will type cast the result from vtkAbstractTransform to vtkLinearTransform.

Reimplemented in vtkTransform.

void vtkAbstractTransform::SetInverse ( vtkAbstractTransform * transform )

Set a transformation that this transform will be the inverse of. This transform will automatically update to agree with the inverse transform that you set.

virtual void vtkAbstractTransform::Inverse ( ) [pure virtual]

Invert the transformation.

Implemented in vtkIterativeClosestPointTransform, vtkLandmarkTransform, vtkTransform, vtkPerspectiveTransform, vtkIdentityTransform, vtkGeoTransform, vtkGeneralTransform, vtkMatrixToLinearTransform, vtkMatrixToHomogeneousTransform, vtkGeoSphereTransform, and vtkWarpTransform.

void vtkAbstractTransform::DeepCopy ( vtkAbstractTransform * )

Copy this transform from another of the same type.

void vtkAbstractTransform::Update ( )

Update the transform to account for any changes which have been made. You do not have to call this method yourself, it is called automatically whenever the transform needs an update.

virtual void vtkAbstractTransform::InternalTransformPoint	(	const float	in[3],
		float	out[3]
	)		`[pure virtual]`

This will calculate the transformation without calling Update. Meant for use only within other VTK classes.

Implemented in vtkGeneralTransform, vtkLinearTransform, vtkHomogeneousTransform, vtkIdentityTransform, vtkWarpTransform, vtkGeoTransform, and vtkGeoSphereTransform.

virtual void vtkAbstractTransform::InternalTransformPoint	(	const double	in[3],
		double	out[3]
	)		`[pure virtual]`

This will calculate the transformation without calling Update. Meant for use only within other VTK classes.

Implemented in vtkGeneralTransform, vtkLinearTransform, vtkHomogeneousTransform, vtkIdentityTransform, vtkWarpTransform, vtkGeoTransform, and vtkGeoSphereTransform.

virtual void vtkAbstractTransform::InternalTransformDerivative	(	const float	in[3],
		float	out[3],
		float	derivative[3][3]
	)		`[pure virtual]`

This will transform a point and, at the same time, calculate a 3x3 Jacobian matrix that provides the partial derivatives of the transformation at that point. This method does not call Update. Meant for use only within other VTK classes.

Implemented in vtkGeneralTransform, vtkLinearTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkWarpTransform, vtkGeoTransform, and vtkGeoSphereTransform.

virtual void vtkAbstractTransform::InternalTransformDerivative	(	const double	in[3],
		double	out[3],
		double	derivative[3][3]
	)		`[pure virtual]`

This will transform a point and, at the same time, calculate a 3x3 Jacobian matrix that provides the partial derivatives of the transformation at that point. This method does not call Update. Meant for use only within other VTK classes.

Implemented in vtkGeneralTransform, vtkLinearTransform, vtkIdentityTransform, vtkHomogeneousTransform, vtkWarpTransform, vtkGeoTransform, and vtkGeoSphereTransform.

virtual vtkAbstractTransform* vtkAbstractTransform::MakeTransform ( ) [pure virtual]

Make another transform of the same type.

Implemented in vtkTransform, vtkPerspectiveTransform, vtkGeneralTransform, vtkIterativeClosestPointTransform, vtkThinPlateSplineTransform, vtkIdentityTransform, vtkBSplineTransform, vtkGridTransform, vtkLandmarkTransform, vtkGeoTransform, vtkGeoSphereTransform, vtkMatrixToLinearTransform, vtkMatrixToHomogeneousTransform, vtkSphericalTransform, and vtkCylindricalTransform.

virtual int vtkAbstractTransform::CircuitCheck ( vtkAbstractTransform * transform ) [virtual]

Check for self-reference. Will return true if concatenating with the specified transform, setting it to be our inverse, or setting it to be our input will create a circular reference. CircuitCheck is automatically called by SetInput(), SetInverse(), and Concatenate(vtkXTransform *). Avoid using this function, it is experimental.

Reimplemented in vtkPerspectiveTransform, vtkTransform, and vtkGeneralTransform.

unsigned long vtkAbstractTransform::GetMTime ( ) [virtual]

Override GetMTime necessary because of inverse transforms.

Reimplemented from vtkObject.

Reimplemented in vtkPerspectiveTransform, vtkTransform, vtkGeneralTransform, vtkIterativeClosestPointTransform, vtkThinPlateSplineTransform, vtkBSplineTransform, vtkGridTransform, vtkLandmarkTransform, vtkMatrixToLinearTransform, and vtkMatrixToHomogeneousTransform.