lsst::afw::geom::ellipses::ReducedShear Class Reference

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

#include <ReducedShear.h>

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

Public Member Functions
	ReducedShear (std::complex< double > const &complex)
	ReducedShear (double e1=0.0, double e2=0.0)
	ReducedShear (ReducedShear const &other)
	ReducedShear (Distortion const &other)
	ReducedShear (ConformalShear const &other)
ReducedShear &	operator= (ReducedShear const &other)
ReducedShear &	operator= (Distortion const &other)
ReducedShear &	operator= (ConformalShear const &other)
Jacobian	dAssign (ReducedShear const &other)
Jacobian	dAssign (Distortion const &other)
Jacobian	dAssign (ConformalShear 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 \(|e| = \frac{a-b}{a+b} \).

For a more complete definition, see Bernstein and Jarvis (2002); this the same as their reduced shear \(g\) (eq. 2.8).

Definition at line 42 of file ReducedShear.h.

Constructor & Destructor Documentation

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

inlineexplicit

Definition at line 45 of file ReducedShear.h.

: detail::EllipticityBase(complex) {}

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

inlineexplicit

Definition at line 47 of file ReducedShear.h.

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

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

inline

Definition at line 49 of file ReducedShear.h.

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

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

inlineexplicit

Definition at line 51 of file ReducedShear.h.

{ this->operator=(other); }

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

inlineexplicit

Definition at line 53 of file ReducedShear.h.

{ this->operator=(other); }

Member Function Documentation

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

inline

Definition at line 64 of file ReducedShear.h.

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

Jacobian lsst::afw::geom::ellipses::ReducedShear::dAssign

(

Distortion const &

other

)

Jacobian lsst::afw::geom::ellipses::ReducedShear::dAssign

(

ConformalShear const &

other

)

double lsst::afw::geom::ellipses::ReducedShear::getAxisRatio

(

)

const

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

inlinestatic

Definition at line 77 of file ReducedShear.h.

{ return "ReducedShear"; }

void lsst::afw::geom::ellipses::ReducedShear::normalize ( )

inline

Definition at line 75 of file ReducedShear.h.

{}

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

inline

Definition at line 55 of file ReducedShear.h.

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

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

(

Distortion const &

other

)

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

(

ConformalShear 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/ReducedShear.h