describes linear transformations via a 3x3 matrix More...

#include <vtkTransform2D.h>

Inheritance diagram for vtkTransform2D:

Collaboration diagram for vtkTransform2D:

Public Types
typedef vtkObject	Superclass

Public Types inherited from vtkObject
typedef vtkObjectBase	Superclass

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

vtkTransform2D *	NewInstance () const

void	PrintSelf (ostream &os, vtkIndent indent)

void	Identity ()

void	Inverse ()

void	Rotate (double angle)

void	GetInverse (vtkMatrix3x3 *inverse)

void	GetTranspose (vtkMatrix3x3 *transpose)

unsigned long	GetMTime ()

void	TransformPoints (const float inPts, float outPts, int n)

void	TransformPoints (const double inPts, double outPts, int n)

void	TransformPoints (vtkPoints2D inPts, vtkPoints2D outPts)

void	InverseTransformPoints (const float inPts, float outPts, int n)

void	InverseTransformPoints (const double inPts, double outPts, int n)

void	InverseTransformPoints (vtkPoints2D inPts, vtkPoints2D outPts)


void	Translate (double x, double y)

void	Translate (const double x[2])

void	Translate (const float x[2])


void	Scale (double x, double y)

void	Scale (const double s[2])

void	Scale (const float s[2])


void	SetMatrix (vtkMatrix3x3 *matrix)

void	SetMatrix (const double elements[9])


virtual vtkMatrix3x3 *	GetMatrix ()

void	GetMatrix (vtkMatrix3x3 *matrix)


void	GetPosition (double pos[2])

void	GetPosition (float pos[2])


void	GetScale (double pos[2])

void	GetScale (float pos[2])


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

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

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

virtual void	DebugOn ()

virtual void	DebugOff ()

bool	GetDebug ()

void	SetDebug (bool debugFlag)

virtual void	Modified ()

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 ()

Static Public Member Functions
static vtkTransform2D *	New ()

static int	IsTypeOf (const char *type)

static vtkTransform2D *	SafeDownCast (vtkObjectBase *o)

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 Member Functions
virtual vtkObjectBase *	NewInstanceInternal () const

	vtkTransform2D ()

	~vtkTransform2D ()

void	InternalDeepCopy (vtkTransform2D *t)

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 &)

Protected Attributes
vtkMatrix3x3 *	Matrix

vtkMatrix3x3 *	InverseMatrix

Protected Attributes inherited from vtkObject
bool	Debug

vtkTimeStamp	MTime

vtkSubjectHelper *	SubjectHelper

Protected Attributes inherited from vtkObjectBase
vtkAtomicInt32	ReferenceCount

vtkWeakPointerBase **	WeakPointers

Detailed Description

describes linear transformations via a 3x3 matrix

A vtkTransform2D can be used to describe the full range of linear (also known as affine) coordinate transformations in two dimensions, which are internally represented as a 3x3 homogeneous transformation matrix. When you create a new vtkTransform2D, it is always initialized to the identity transformation.

This class performs all of its operations in a right handed coordinate system with right handed rotations. Some other graphics libraries use left handed coordinate systems and rotations.

Examples:: vtkTransform2D (Examples)

Tests:: vtkTransform2D (Tests)

Definition at line 46 of file vtkTransform2D.h.

Member Typedef Documentation

typedef vtkObject vtkTransform2D::Superclass

Definition at line 50 of file vtkTransform2D.h.

Constructor & Destructor Documentation

vtkTransform2D::vtkTransform2D ( )

protected

vtkTransform2D::~vtkTransform2D ( )

protected

Member Function Documentation

static vtkTransform2D* vtkTransform2D::New ( )

static

static int vtkTransform2D::IsTypeOf ( const char * type )

static

virtual int vtkTransform2D::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.

static vtkTransform2D* vtkTransform2D::SafeDownCast ( vtkObjectBase * o )

static

virtual vtkObjectBase* vtkTransform2D::NewInstanceInternal ( ) const

protectedvirtual

Reimplemented from vtkObject.

vtkTransform2D* vtkTransform2D::NewInstance ( ) const

void vtkTransform2D::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.

void vtkTransform2D::Identity ( )

Set the transformation to the identity transformation.

void vtkTransform2D::Inverse ( )

Invert the transformation.

void vtkTransform2D::Translate	(	double	x,
		double	y
	)

Create a translation matrix and concatenate it with the current transformation.

void vtkTransform2D::Translate ( const double x[2] )

inline

Create a translation matrix and concatenate it with the current transformation.

Definition at line 63 of file vtkTransform2D.h.

void vtkTransform2D::Translate ( const float x[2] )

inline

Create a translation matrix and concatenate it with the current transformation.

Definition at line 64 of file vtkTransform2D.h.

void vtkTransform2D::Rotate ( double angle )

Create a rotation matrix and concatenate it with the current transformation. The angle is in degrees.

void vtkTransform2D::Scale	(	double	x,
		double	y
	)

Create a scale matrix (i.e. set the diagonal elements to x, y) and concatenate it with the current transformation.

void vtkTransform2D::Scale ( const double s[2] )

inline

Create a scale matrix (i.e. set the diagonal elements to x, y) and concatenate it with the current transformation.

Definition at line 75 of file vtkTransform2D.h.

void vtkTransform2D::Scale ( const float s[2] )

inline

Create a scale matrix (i.e. set the diagonal elements to x, y) and concatenate it with the current transformation.

Definition at line 76 of file vtkTransform2D.h.

void vtkTransform2D::SetMatrix ( vtkMatrix3x3 * matrix )

inline

Set the current matrix directly.

Definition at line 81 of file vtkTransform2D.h.

void vtkTransform2D::SetMatrix ( const double elements[9] )

Set the current matrix directly.

virtual vtkMatrix3x3* vtkTransform2D::GetMatrix ( )

virtual

Get the underlying 3x3 matrix.

void vtkTransform2D::GetMatrix ( vtkMatrix3x3 * matrix )

Get the underlying 3x3 matrix.

void vtkTransform2D::GetPosition ( double pos[2] )

Return the position from the current transformation matrix as an array of two floating point numbers. This is simply returning the translation component of the 3x3 matrix.

void vtkTransform2D::GetPosition ( float pos[2] )

inline

Return the position from the current transformation matrix as an array of two floating point numbers. This is simply returning the translation component of the 3x3 matrix.

Definition at line 97 of file vtkTransform2D.h.

void vtkTransform2D::GetScale ( double pos[2] )

Return the x and y scale from the current transformation matrix as an array of two floating point numbers. This is simply returning the scale component of the 3x3 matrix.

void vtkTransform2D::GetScale ( float pos[2] )

inline

Return the x and y scale from the current transformation matrix as an array of two floating point numbers. This is simply returning the scale component of the 3x3 matrix.

Definition at line 109 of file vtkTransform2D.h.

void vtkTransform2D::GetInverse ( vtkMatrix3x3 * inverse )

Return a matrix which is the inverse of the current transformation matrix.

void vtkTransform2D::GetTranspose ( vtkMatrix3x3 * transpose )

Return a matrix which is the transpose of the current transformation matrix. This is equivalent to the inverse if and only if the transformation is a pure rotation with no translation or scale.

unsigned long vtkTransform2D::GetMTime ( )

virtual

Override GetMTime to account for input and concatenation.

Reimplemented from vtkObject.

void vtkTransform2D::TransformPoints	(	const float *	inPts,
		float *	outPts,
		int	n
	)

Apply the transformation to a series of points, and append the results to outPts. Where n is the number of points, and the float pointers are of length 2*n.

void vtkTransform2D::TransformPoints	(	const double *	inPts,
		double *	outPts,
		int	n
	)

Apply the transformation to a series of points, and append the results to outPts. Where n is the number of points, and the float pointers are of length 2*n.

void vtkTransform2D::TransformPoints	(	vtkPoints2D *	inPts,
		vtkPoints2D *	outPts
	)

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

void vtkTransform2D::InverseTransformPoints	(	const float *	inPts,
		float *	outPts,
		int	n
	)

Apply the transformation to a series of points, and append the results to outPts. Where n is the number of points, and the float pointers are of length 2*n.

void vtkTransform2D::InverseTransformPoints	(	const double *	inPts,
		double *	outPts,
		int	n
	)

Apply the transformation to a series of points, and append the results to outPts. Where n is the number of points, and the float pointers are of length 2*n.

void vtkTransform2D::InverseTransformPoints	(	vtkPoints2D *	inPts,
		vtkPoints2D *	outPts
	)

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

void vtkTransform2D::MultiplyPoint	(	const float	in[3],
		float	out[3]
	)

inline

Use this method only if you wish to compute the transformation in homogeneous (x,y,w) coordinates, otherwise use TransformPoint(). This method calls this->GetMatrix()->MultiplyPoint().

Definition at line 160 of file vtkTransform2D.h.

void vtkTransform2D::MultiplyPoint	(	const double	in[3],
		double	out[3]
	)

inline

Use this method only if you wish to compute the transformation in homogeneous (x,y,w) coordinates, otherwise use TransformPoint(). This method calls this->GetMatrix()->MultiplyPoint().

Definition at line 162 of file vtkTransform2D.h.

void vtkTransform2D::InternalDeepCopy ( vtkTransform2D * t )

protected

Member Data Documentation

vtkMatrix3x3* vtkTransform2D::Matrix

protected

Definition at line 172 of file vtkTransform2D.h.

vtkMatrix3x3* vtkTransform2D::InverseMatrix

protected

Definition at line 173 of file vtkTransform2D.h.

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

/home/boeckb/code/depot/group-kitware/vtk/build-release/Utilities/Doxygen/dox/Common/Transforms/vtkTransform2D.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