lsst::afw::geom::ellipses::DeterminantRadius Class Reference

The radius defined as the 4th root of the determinant of the quadrupole matrix. More...

#include <radii.h>

Public Member Functions
void	normalize ()
	DeterminantRadius (double value=1.0)
	DeterminantRadius (LogDeterminantRadius const &other)
	operator double const & () const
	operator double & ()
DeterminantRadius &	operator= (double value)
DeterminantRadius &	operator= (LogDeterminantRadius const &other)

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

Private Member Functions
void	operator= (TraceRadius const &)
	Undefined and disabled; conversion between trace and determinant radii requires ellipticity. More...
void	operator= (LogTraceRadius const &)
	Undefined and disabled; conversion between trace and determinant radii requires ellipticity. More...
void	assignFromQuadrupole (double ixx, double iyy, double ixy, Distortion &distortion)
BaseCore::Jacobian	dAssignFromQuadrupole (double ixx, double iyy, double ixy, Distortion &distortion)
void	assignToQuadrupole (Distortion const &distortion, double &ixx, double &iyy, double &ixy) const
BaseCore::Jacobian	dAssignToQuadrupole (Distortion const &distortion, double &ixx, double &iyy, double &ixy) const

Private Attributes
double	_value

Friends
template<typename T1 , typename T2 >
class	Separable

Detailed Description

The radius defined as the 4th root of the determinant of the quadrupole matrix.

The determinant radius is equal to the standard radius for a circle, and \(\pi R_{det}^2\) is the area of the ellipse.

Definition at line 57 of file radii.h.

Constructor & Destructor Documentation

lsst::afw::geom::ellipses::DeterminantRadius::DeterminantRadius ( double  value = 1.0 )

inlineexplicit

Definition at line 68 of file radii.h.

: _value(value) {}

lsst::afw::geom::ellipses::DeterminantRadius::DeterminantRadius ( LogDeterminantRadius const &  other )

inlineexplicit

Definition at line 280 of file radii.h.

: _value(std::exp(other)) {}

Member Function Documentation

void lsst::afw::geom::ellipses::DeterminantRadius::assignFromQuadrupole ( double  ixx, double  iyy, double  ixy, Distortion &  distortion  )

private

void lsst::afw::geom::ellipses::DeterminantRadius::assignToQuadrupole ( Distortion const &  distortion, double &  ixx, double &  iyy, double &  ixy  ) const

private

BaseCore::Jacobian lsst::afw::geom::ellipses::DeterminantRadius::dAssignFromQuadrupole ( double  ixx, double  iyy, double  ixy, Distortion &  distortion  )

private

BaseCore::Jacobian lsst::afw::geom::ellipses::DeterminantRadius::dAssignToQuadrupole ( Distortion const &  distortion, double &  ixx, double &  iyy, double &  ixy  ) const

private

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

inlinestatic

Definition at line 66 of file radii.h.

{ return "DeterminantRadius"; }

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

inline

Definition at line 60 of file radii.h.

                     {
        if (_value < 0)
            throw LSST_EXCEPT(lsst::pex::exceptions::InvalidParameterError, 
                              "Ellipse radius cannot be negative.");
    }

lsst::afw::geom::ellipses::DeterminantRadius::operator double & ( )

inline

Definition at line 74 of file radii.h.

{ return _value; }

lsst::afw::geom::ellipses::DeterminantRadius::operator double const & ( ) const

inline

Definition at line 72 of file radii.h.

{ return _value; }

DeterminantRadius& lsst::afw::geom::ellipses::DeterminantRadius::operator= ( double  value )

inline

Definition at line 76 of file radii.h.

{ _value = value; return *this; }

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

inline

Definition at line 285 of file radii.h.

                                                                                          {
    _value = std::exp(other);
    return *this;
}

void lsst::afw::geom::ellipses::DeterminantRadius::operator= ( TraceRadius const &  )

private

Undefined and disabled; conversion between trace and determinant radii requires ellipticity.

void lsst::afw::geom::ellipses::DeterminantRadius::operator= ( LogTraceRadius const &  )

private

Undefined and disabled; conversion between trace and determinant radii requires ellipticity.

Friends And Related Function Documentation

template<typename T1 , typename T2 >

friend class Separable

friend

Definition at line 82 of file radii.h.

Member Data Documentation

double lsst::afw::geom::ellipses::DeterminantRadius::_value

private

Definition at line 109 of file radii.h.

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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/radii.h