ipsdk::math::transform::Homography2d Class Reference

Transformation class allowing to manage 2d homography transformations. More...

#include <Homography2d.h>

Inheritance diagram for ipsdk::math::transform::Homography2d:

Public Types
enum	eTransformParams {   eTP_Axx, eTP_Axy, eTP_Axw, eTP_Ayx,   eTP_Ayy, eTP_Ayw, eTP_Awx, eTP_Awy,   eTP_Aww }

Public Member Functions
	IPSDK_DECLARE_TRANSFORM2D (Homography2d)
void	setParams (const Vector &params)
	select parameters associated to transformation More...
void	setIdentity ()
	set transformation parameters to identity
void	apply (ipReal64 &x, ipReal64 &y) const
	apply transformation to a given point
Matrix3d	getHomogenousMatrix () const
	retrieve homogeneous matrix associated to transformation
Vector	getParams () const
	retrieve parameters associated to transformation
bool	isInvertible () const
	check whether transformation can be inverted
Matrix3d	getInvHomogenousMatrix () const
	retrieve invert of homogeneous matrix associated to transformation More...
Vector	getInvParams () const
	retrieve invert parameters associated to transformation More...
Constructors and destructor
	Homography2d ()
	Homography2d (const Matrix3d &matA)
	Homography2d (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww)
	~Homography2d ()
void	setParams (const Matrix3d &matA)
	select parameters associated to transformation
void	setParams (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww)
	select parameters associated to transformation
Public Member Functions inherited from ipsdk::math::transform::BaseLinearGeometricTransform2d
bool	isLinear () const
	retrieve flag indicating whether geometric transform is linear
	BaseLinearGeometricTransform2d ()
virtual	~BaseLinearGeometricTransform2d ()=0
Public Member Functions inherited from ipsdk::math::transform::BaseGeometricTransform2d
virtual eGeometricTransform2dType	getGeometricTransform2dType () const =0
	retrieve geometric transform 2d type
virtual ipUInt32	getNbParams () const =0
	retrieve number of parameters associated to geometric transformation
template<typename T >
void	apply (const T xIn, const T yIn, T &xOut, T &yOut) const
	apply transformation to a given point
GeometricTransform2dPtr	createInverted () const
	create an inversed transformation from current one More...
	BaseGeometricTransform2d ()
virtual	~BaseGeometricTransform2d ()

Static Public Member Functions
static Matrix3d	getHomogenousMatrix (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww)
	retrieve homogeneous matrix associated to transformation
static bool	isInvertible (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww)
	check whether transformation can be inverted
static Matrix3d	getInvHomogenousMatrix (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww)
	retrieve invert of homogeneous matrix associated to transformation More...
static void	getInvParams (ipReal64 &axx, ipReal64 &axy, ipReal64 &axw, ipReal64 &ayx, ipReal64 &ayy, ipReal64 &ayw, ipReal64 &awx, ipReal64 &awy, ipReal64 &aww)
	retrieve invert parameters for transformation More...
static Vector	getIdentityParams ()
	retrieve identity parameters for transformation
static bool	transform (const Matrix3d &matA, ipReal64 &x, ipReal64 &y)
	application of transformation to a point More...
static bool	transform (const ipReal64 axx, const ipReal64 axy, const ipReal64 axw, const ipReal64 ayx, const ipReal64 ayy, const ipReal64 ayw, const ipReal64 awx, const ipReal64 awy, const ipReal64 aww, ipReal64 &x, ipReal64 &y)
	application of transformation to a point More...

Protected Attributes
Matrix3d	_matA
	matrix associated to homography

Additional Inherited Members
Static Public Attributes inherited from ipsdk::math::transform::BaseLinearGeometricTransform2d
static const bool	g_bLinear = true
	linear status for transformation

Detailed Description

Transformation class allowing to manage 2d homography transformations.

Author

E.Noirfalise

Date

2016/12/22

Copyright

2016 Reactiv'IP, all right reserved.

Member Enumeration Documentation

eTransformParams

enum ipsdk::math::transform::Homography2d::eTransformParams

parameters list associated to transformation

Note

This object is associated to a strong enumerate definition

See also

IPSDK_Enum

Enumerator
eTP_Axx	xx term of matrix
eTP_Axy	xy term of matrix
eTP_Axw	xw term of matrix
eTP_Ayx	yx term of matrix
eTP_Ayy	yy term of matrix
eTP_Ayw	yw term of matrix
eTP_Awx	wx term of matrix
eTP_Awy	wy term of matrix
eTP_Aww	ww term of matrix

Member Function Documentation

transform() [1/2]

static bool ipsdk::math::transform::Homography2d::transform ( const Matrix3d &  matA, ipReal64 &  x, ipReal64 &  y  )

inlinestatic

application of transformation to a point

Returns

false in case of null denominator

transform() [2/2]

static bool ipsdk::math::transform::Homography2d::transform ( const ipReal64  axx, const ipReal64  axy, const ipReal64  axw, const ipReal64  ayx, const ipReal64  ayy, const ipReal64  ayw, const ipReal64  awx, const ipReal64  awy, const ipReal64  aww, ipReal64 &  x, ipReal64 &  y  )

inlinestatic

application of transformation to a point

Returns

false in case of null denominator

getInvHomogenousMatrix() [1/2]

static Matrix3d ipsdk::math::transform::Homography2d::getInvHomogenousMatrix ( const ipReal64  axx, const ipReal64  axy, const ipReal64  axw, const ipReal64  ayx, const ipReal64  ayy, const ipReal64  ayw, const ipReal64  awx, const ipReal64  awy, const ipReal64  aww  )

inlinestatic

retrieve invert of homogeneous matrix associated to transformation

Exceptions

ipsdk::math::IPSDKMathException

if isInvertible(axx, axy, axw, ayx, ayy, ayw, awx, awy, aww) == false

getInvParams() [1/2]

static void ipsdk::math::transform::Homography2d::getInvParams ( ipReal64 &  axx, ipReal64 &  axy, ipReal64 &  axw, ipReal64 &  ayx, ipReal64 &  ayy, ipReal64 &  ayw, ipReal64 &  awx, ipReal64 &  awy, ipReal64 &  aww  )

static

retrieve invert parameters for transformation

Exceptions

ipsdk::math::IPSDKMathException

if isInvertible(axx, axy, axw, ayx, ayy, ayw, awx, awy, aww) == false

setParams()

void ipsdk::math::transform::Homography2d::setParams ( const Vector &  params )

virtual

select parameters associated to transformation

Exceptions

ipsdk::math::IPSDKMathException

if params.size() != getNbParams()

Implements ipsdk::math::transform::BaseGeometricTransform2d.

getInvHomogenousMatrix() [2/2]

Matrix3d ipsdk::math::transform::Homography2d::getInvHomogenousMatrix ( ) const

virtual

retrieve invert of homogeneous matrix associated to transformation

Exceptions

ipsdk::math::IPSDKMathException

if isInvertible() == false

Implements ipsdk::math::transform::BaseLinearGeometricTransform2d.

getInvParams() [2/2]

Vector ipsdk::math::transform::Homography2d::getInvParams ( ) const

virtual

retrieve invert parameters associated to transformation

Exceptions

ipsdk::math::IPSDKMathException

if isInvertible() == false

Implements ipsdk::math::transform::BaseGeometricTransform2d.

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

• /media/reactivipdev/Nightly/IPSDK_Patch/IPSDK_4_1/IPSDK_Nightly/include/public/IPSDKMath/Geometry/2d/Transform/Homography2d.h