lsst::afw::geom::ellipses::Distortion Class Reference

A complex ellipticity with magnitude \(|e| = \frac{a^2 - b^2}{a^2 + b^2}\). More...

#include <Distortion.h>

Inheritance diagram for lsst::afw::geom::ellipses::Distortion:

Public Member Functions
	Distortion (std::complex< double > const &complex)
	Distortion (double e1=0.0, double e2=0.0)
	Distortion (Distortion const &other)
	Distortion (ConformalShear const &other)
	Distortion (ReducedShear const &other)
Distortion &	operator= (Distortion const &other)
Distortion &	operator= (ConformalShear const &other)
Distortion &	operator= (ReducedShear const &other)
Jacobian	dAssign (Distortion const &other)
Jacobian	dAssign (ConformalShear const &other)
Jacobian	dAssign (ReducedShear const &other)
double	getAxisRatio () const
void	normalize ()
Public Member Functions inherited from lsst::afw::geom::ellipses::detail::EllipticityBase
std::complex< double > &	getComplex ()
std::complex< double > const &	getComplex () const
void	setComplex (std::complex< double > const &v)
double	getE1 () const
void	setE1 (double e1)
double	getE2 () const
void	setE2 (double e2)
double	getE () const
void	setE (double e)
double	getTheta () const

Static Public Member Functions
static std::string	getName ()

Additional Inherited Members
Public Types inherited from lsst::afw::geom::ellipses::detail::EllipticityBase
enum	ParameterEnum { E1 =0, E2 =1 }
typedef Eigen::Matrix2d	Jacobian
Protected Member Functions inherited from lsst::afw::geom::ellipses::detail::EllipticityBase
	EllipticityBase (std::complex< double > const &complex)
	EllipticityBase (double e1=0.0, double e2=0.0)
Protected Attributes inherited from lsst::afw::geom::ellipses::detail::EllipticityBase
std::complex< double >	_complex

Detailed Description

A complex ellipticity with magnitude \(|e| = \frac{a^2 - b^2}{a^2 + b^2}\).

For a more complete definition, see Bernstein and Jarvis (2002); this the same as their distortion \(\delta\) (eq. 2.7).

Definition at line 41 of file Distortion.h.

Constructor & Destructor Documentation

lsst::afw::geom::ellipses::Distortion::Distortion ( std::complex< double > const &  complex )

inlineexplicit

Definition at line 44 of file Distortion.h.

: detail::EllipticityBase(complex) {}

lsst::afw::geom::ellipses::Distortion::Distortion ( double  e1 = 0.0, double  e2 = 0.0  )

inlineexplicit

Definition at line 46 of file Distortion.h.

: detail::EllipticityBase(e1, e2) {}

lsst::afw::geom::ellipses::Distortion::Distortion ( Distortion const &  other )

inline

Definition at line 48 of file Distortion.h.

: detail::EllipticityBase(other.getComplex()) {}

lsst::afw::geom::ellipses::Distortion::Distortion ( ConformalShear const &  other )

inlineexplicit

Definition at line 50 of file Distortion.h.

{ this->operator=(other); }

lsst::afw::geom::ellipses::Distortion::Distortion ( ReducedShear const &  other )

inlineexplicit

Definition at line 52 of file Distortion.h.

{ this->operator=(other); }

Member Function Documentation

Jacobian lsst::afw::geom::ellipses::Distortion::dAssign ( Distortion const &  other )

inline

Definition at line 63 of file Distortion.h.

                                               {
        _complex = other._complex;
        return Jacobian::Identity();
    }

Jacobian lsst::afw::geom::ellipses::Distortion::dAssign

(

ConformalShear const &

other

)

Jacobian lsst::afw::geom::ellipses::Distortion::dAssign

(

ReducedShear const &

other

)

double lsst::afw::geom::ellipses::Distortion::getAxisRatio

(

)

const

static std::string lsst::afw::geom::ellipses::Distortion::getName ( )

inlinestatic

Definition at line 76 of file Distortion.h.

{ return "Distortion"; }

void lsst::afw::geom::ellipses::Distortion::normalize

(

)

Distortion& lsst::afw::geom::ellipses::Distortion::operator= ( Distortion const &  other )

inline

Definition at line 54 of file Distortion.h.

                                                     {
        _complex = other._complex;
        return *this;
    }

Distortion& lsst::afw::geom::ellipses::Distortion::operator=

(

ConformalShear const &

other

)

Distortion& lsst::afw::geom::ellipses::Distortion::operator=

(

ReducedShear const &

other

)

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

• /home/lsstsw/stack/Linux64/afw/11.0-2-g04d2804/include/lsst/afw/geom/ellipses/Distortion.h