i2d::CAffine2d Class Reference

This class defines an affine 2D-transformation. More...

#include <CAffine2d.h>

Inheritance diagram for i2d::CAffine2d:

Collaboration diagram for i2d::CAffine2d:

Public Member Functions
	CAffine2d ()
	Constructor, parameters will be not initialized.
	CAffine2d (const CAffine2d &transform)
	Copy constructor, transformation data will be copied from the input object.
	CAffine2d (const CMatrix2d &deform, const CVector2d &translation=CVector2d(0.0, 0.0))
	Constructs a transform using specified deformation matrix and translation.
	CAffine2d (const CVector2d &translation)
	Constructs a transform with translation only.
const CVector2d &	GetTranslation () const
	Get translation part of this affine transformation.
void	SetTranslation (const CVector2d &translation)
	Set translation part of this affine transformation.
const CMatrix2d &	GetDeformMatrix () const
	Get rotation, skew and scale part of this affine transformation.
CVector2d	GetScaleVector () const
	Get scale vector of this affine transformation (right-hand side matrix-vector multiplication assumed, i.e.
CMatrix2d	GetRotationMatrix () const
	Get rotational part of this affine transformation.
void	SetDeformMatrix (const CMatrix2d &deform)
	Set rotation, skew and scale part of this affine transformation.
CVector2d &	GetTranslationRef ()
	Get internal reference to the translation vector.
CMatrix2d &	GetDeformMatrixRef ()
	Get internal reference to the transformation matrix.
void	Reset ()
	Set to identity transformation.
void	Reset (const CVector2d &translation)
	Set this transformation to translation.
void	Reset (const CVector2d &translation, double angle, double scale=1.0, bool isPosDef=true)
	Set this transformation to a given translation, rotation and scaling.
void	Reset (const CVector2d &translation, double angle, const CVector2d &scale, bool isPosDef=true)
	Set this transformation to a given translation, rotation and both axis scaling.
CVector2d	GetApply (const CVector2d &position) const
	Calculate transformed position.
void	GetApply (const CVector2d &position, CVector2d &result) const
	Get position after this transformation.
CVector2d	GetApplyToDelta (const CVector2d &delta) const
	Get difference vector after this transformation.
void	GetApplyToDelta (const CVector2d &delta, CVector2d &result) const
	Get vector after this transformation.
CAffine2d	GetApply (const CAffine2d &transform) const
	Get combined transformation.
void	GetApply (const CAffine2d &transform, CAffine2d &result) const
	Get combined transformation.
void	Apply (const CAffine2d &transform)
	Combine this transformation with another transformation.
void	ApplyLeft (const CAffine2d &transform)
	Combine this transformation with another transformation on the left side.
CVector2d	GetInvertedApply (const CVector2d &position) const
	Inverted operation to GetApply().
bool	GetInvertedApply (const CVector2d &position, CVector2d &result) const
	Inverted operation to GetApply().
CAffine2d	GetTranslated (const CVector2d &delta) const
	Get some transformation combined with translation.
void	GetTranslated (const CVector2d &delta, CAffine2d &result) const
	Get some transformation combined with translation.
void	Translate (const CVector2d &delta)
	Combine this transformation with translation.
CAffine2d	GetInverted () const
	Get inverted transformation.
bool	GetInverted (CAffine2d &result) const
	Get inverted transformation.
bool	Serialize (iser::IArchive &archive)
	Serialize transformation parameters into/from archive.
bool	operator== (const CAffine2d &transform) const
bool	operator!= (const CAffine2d &transform) const
CAffine2d &	operator= (const CAffine2d &transform)

Static Public Member Functions
static const CAffine2d &	GetIdentity ()

Detailed Description

This class defines an affine 2D-transformation.

Definition at line 21 of file CAffine2d.h.

Constructor & Destructor Documentation

CAffine2d() [1/4]

i2d::CAffine2d::CAffine2d ( )

inline

Constructor, parameters will be not initialized.

Definition at line 224 of file CAffine2d.h.

Referenced by GetTranslated().

CAffine2d() [2/4]

i2d::CAffine2d::CAffine2d ( const CAffine2d & transform )

inline

Copy constructor, transformation data will be copied from the input object.

Definition at line 231 of file CAffine2d.h.

CAffine2d() [3/4]

i2d::CAffine2d::CAffine2d ( const CMatrix2d & deform, const CVector2d & translation = CVector2d(0.0, 0.0) )

explicit

Constructs a transform using specified deformation matrix and translation.

CAffine2d() [4/4]

i2d::CAffine2d::CAffine2d ( const CVector2d & translation )

explicit

Constructs a transform with translation only.

Member Function Documentation

Apply()

void i2d::CAffine2d::Apply

(

const CAffine2d &

transform

)

Combine this transformation with another transformation.

Parameters

transform

local transformation used on right side of transformation multiplication.

Referenced by iview::CScreenTransform::Apply().

ApplyLeft()

void i2d::CAffine2d::ApplyLeft

(

const CAffine2d &

transform

)

Combine this transformation with another transformation on the left side.

Parameters

transform

local transformation used on left side of transformation multiplication.

GetApply() [1/4]

CAffine2d i2d::CAffine2d::GetApply

(

const CAffine2d &

transform

)

const

Get combined transformation.

Parameters

transform

local transformation used on the right side of transformation multiplication.

Returns

combined transform.

GetApply() [2/4]

void i2d::CAffine2d::GetApply	(	const CAffine2d &	transform,
		CAffine2d &	result ) const

Get combined transformation.

Parameters

transform

local transformation used on the right side of transformation multiplication.

Returns

combined transformation, it is equal to thisTranform * parameterTransform.

GetApply() [3/4]

CVector2d i2d::CAffine2d::GetApply ( const CVector2d & position ) const

inline

Calculate transformed position.

Definition at line 280 of file CAffine2d.h.

References i2d::CMatrix2d::GetMultiplied().

Referenced by iview::CScreenTransform::GetClientPosition().

GetApply() [4/4]

void i2d::CAffine2d::GetApply ( const CVector2d & position, CVector2d & result ) const

inline

Get position after this transformation.

Definition at line 289 of file CAffine2d.h.

References i2d::CMatrix2d::GetMultiplied().

GetApplyToDelta() [1/2]

CVector2d i2d::CAffine2d::GetApplyToDelta ( const CVector2d & delta ) const

inline

Get difference vector after this transformation.

Please note that the translation will be not considered for this transformation.

Definition at line 296 of file CAffine2d.h.

References i2d::CMatrix2d::GetMultiplied().

GetApplyToDelta() [2/2]

void i2d::CAffine2d::GetApplyToDelta ( const CVector2d & delta, CVector2d & result ) const

inline

Get vector after this transformation.

Please note that the translation will be not considered for this transformation.

Definition at line 306 of file CAffine2d.h.

References i2d::CMatrix2d::GetMultiplied().

GetDeformMatrix()

const CMatrix2d & i2d::CAffine2d::GetDeformMatrix ( ) const

inline

Get rotation, skew and scale part of this affine transformation.

Definition at line 252 of file CAffine2d.h.

Referenced by i2d::CParallelogram::GetDeformMatrix().

GetDeformMatrixRef()

CMatrix2d & i2d::CAffine2d::GetDeformMatrixRef ( )

inline

Get internal reference to the transformation matrix.

Definition at line 272 of file CAffine2d.h.

Referenced by GetTranslated().

GetIdentity()

const CAffine2d & i2d::CAffine2d::GetIdentity ( )

inlinestatic

Definition at line 367 of file CAffine2d.h.

GetInverted() [1/2]

CAffine2d i2d::CAffine2d::GetInverted ( ) const

inline

Get inverted transformation.

Definition at line 341 of file CAffine2d.h.

References GetInverted().

Referenced by iview::CScreenTransform::CalculateInvert(), and GetInverted().

GetInverted() [2/2]

bool i2d::CAffine2d::GetInverted

(

CAffine2d &

result

)

const

Get inverted transformation.

GetInvertedApply() [1/2]

CVector2d i2d::CAffine2d::GetInvertedApply ( const CVector2d & position ) const

inline

Inverted operation to GetApply().

Definition at line 331 of file CAffine2d.h.

References GetInvertedApply().

Referenced by GetInvertedApply().

GetInvertedApply() [2/2]

bool i2d::CAffine2d::GetInvertedApply	(	const CVector2d &	position,
		CVector2d &	result ) const

Inverted operation to GetApply().

GetRotationMatrix()

CMatrix2d i2d::CAffine2d::GetRotationMatrix

(

)

const

Get rotational part of this affine transformation.

GetScaleVector()

CVector2d i2d::CAffine2d::GetScaleVector

(

)

const

Get scale vector of this affine transformation (right-hand side matrix-vector multiplication assumed, i.e.

deformation matrix D = R * S. Here D is the deformation matrix, R - rotation matrix, S - scale diagonal matrix

GetTranslated() [1/2]

CAffine2d i2d::CAffine2d::GetTranslated ( const CVector2d & delta ) const

inline

Get some transformation combined with translation.

Definition at line 312 of file CAffine2d.h.

References CAffine2d().

GetTranslated() [2/2]

void i2d::CAffine2d::GetTranslated ( const CVector2d & delta, CAffine2d & result ) const

inline

Get some transformation combined with translation.

Definition at line 318 of file CAffine2d.h.

References GetDeformMatrixRef(), and GetTranslationRef().

GetTranslation()

const CVector2d & i2d::CAffine2d::GetTranslation ( ) const

inline

Get translation part of this affine transformation.

Definition at line 240 of file CAffine2d.h.

GetTranslationRef()

CVector2d & i2d::CAffine2d::GetTranslationRef ( )

inline

Get internal reference to the translation vector.

Definition at line 266 of file CAffine2d.h.

Referenced by GetTranslated().

operator!=()

bool i2d::CAffine2d::operator!= ( const CAffine2d & transform ) const

inline

Definition at line 359 of file CAffine2d.h.

operator=()

CAffine2d & i2d::CAffine2d::operator=

(

const CAffine2d &

transform

)

Referenced by iview::CScreenTransform::operator=().

operator==()

bool i2d::CAffine2d::operator== ( const CAffine2d & transform ) const

inline

Definition at line 353 of file CAffine2d.h.

Reset() [1/4]

void i2d::CAffine2d::Reset

(

)

Set to identity transformation.

Referenced by iview::CScreenTransform::Reset(), iview::CScreenTransform::Reset(), iview::CScreenTransform::Reset(), and iview::CScreenTransform::Reset().

Reset() [2/4]

void i2d::CAffine2d::Reset

(

const CVector2d &

translation

)

Set this transformation to translation.

Reset() [3/4]

void i2d::CAffine2d::Reset	(	const CVector2d &	translation,
		double	angle,
		const CVector2d &	scale,
		bool	isPosDef = true )

Set this transformation to a given translation, rotation and both axis scaling.

Parameters

translation	translation of transformation.
angle	angle of transformation.
scale	scale of both axis of transformation.
isPosDef	indicate if the matrix of transformation is positive-defined, if not than the vertical direction will be mirrored.

Reset() [4/4]

void i2d::CAffine2d::Reset	(	const CVector2d &	translation,
		double	angle,
		double	scale = 1.0,
		bool	isPosDef = true )

Set this transformation to a given translation, rotation and scaling.

Parameters

translation	translation of transformation.
angle	angle of transformation.
scale	scale of both axis of transformation.
isPosDef	indicate if the matrix of transformation is positive-defined, if not than the vertical direction will be mirrored.

Serialize()

bool i2d::CAffine2d::Serialize

(

iser::IArchive &

archive

)

Serialize transformation parameters into/from archive.

SetDeformMatrix()

void i2d::CAffine2d::SetDeformMatrix ( const CMatrix2d & deform )

inline

Set rotation, skew and scale part of this affine transformation.

Definition at line 258 of file CAffine2d.h.

Referenced by i2d::CParallelogram::SetDeformMatrix().

SetTranslation()

void i2d::CAffine2d::SetTranslation ( const CVector2d & translation )

inline

Set translation part of this affine transformation.

Definition at line 246 of file CAffine2d.h.

Translate()

void i2d::CAffine2d::Translate ( const CVector2d & delta )

inline

Combine this transformation with translation.

Definition at line 325 of file CAffine2d.h.

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

• i2d/CAffine2d.h