lsst::afw::geom::ellipses::BaseCore::Convolution Class Reference

A temporary-only expression object for ellipse core convolution. More...

#include <Convolution.h>

Public Types
using	DerivativeMatrix = Eigen::Matrix3d
	Matrix type for derivative with respect to input ellipse parameters.

Public Member Functions
	Convolution (BaseCore &self, BaseCore const &other)
	Standard constructor.
std::shared_ptr< BaseCore >	copy () const
	Return a new convolved ellipse core.
void	inPlace ()
	Convolve the ellipse core in-place.
DerivativeMatrix	d () const
	Return the derivative of convolved core with respect to self.
void	apply (BaseCore &result) const

Public Attributes
BaseCore &	self
BaseCore const &	other

Detailed Description

A temporary-only expression object for ellipse core convolution.

Definition at line 44 of file Convolution.h.

Member Typedef Documentation

DerivativeMatrix

using lsst::afw::geom::ellipses::BaseCore::Convolution::DerivativeMatrix = Eigen::Matrix3d

Matrix type for derivative with respect to input ellipse parameters.

Definition at line 47 of file Convolution.h.

Constructor & Destructor Documentation

Convolution()

lsst::afw::geom::ellipses::BaseCore::Convolution::Convolution ( BaseCore & self, BaseCore const & other )

inline

Standard constructor.

Definition at line 50 of file Convolution.h.

: self(self), other(other) {}

Member Function Documentation

apply()

void lsst::afw::geom::ellipses::BaseCore::Convolution::apply

(

BaseCore &

result

)

const

Definition at line 50 of file Convolution.cc.

                                                      {
    double ixx1, iyy1, ixy1;
    double ixx2, iyy2, ixy2;
    self._assignToQuadrupole(ixx1, iyy1, ixy1);
    other._assignToQuadrupole(ixx2, iyy2, ixy2);
    result._assignFromQuadrupole(ixx1 + ixx2, iyy1 + iyy2, ixy1 + ixy2);
}

copy()

std::shared_ptr< BaseCore > lsst::afw::geom::ellipses::BaseCore::Convolution::copy

(

)

const

Return a new convolved ellipse core.

Definition at line 32 of file Convolution.cc.

                                                        {
    std::shared_ptr<BaseCore> r(self.clone());
    apply(*r);
    return r;
}

d()

BaseCore::Convolution::DerivativeMatrix lsst::afw::geom::ellipses::BaseCore::Convolution::d

(

)

const

Return the derivative of convolved core with respect to self.

Definition at line 40 of file Convolution.cc.

                                                                 {
    double ixx1, iyy1, ixy1;
    double ixx2, iyy2, ixy2;
    Jacobian rhs = self._dAssignToQuadrupole(ixx1, iyy1, ixy1);
    other._assignToQuadrupole(ixx2, iyy2, ixy2);
    std::shared_ptr<BaseCore> convolved(self.clone());
    Jacobian lhs = convolved->_dAssignFromQuadrupole(ixx1 + ixx2, iyy1 + iyy2, ixy1 + ixy2);
    return lhs * rhs;
}

inPlace()

void lsst::afw::geom::ellipses::BaseCore::Convolution::inPlace

(

)

Convolve the ellipse core in-place.

Definition at line 38 of file Convolution.cc.

{ apply(self); }

Member Data Documentation

other

BaseCore const& lsst::afw::geom::ellipses::BaseCore::Convolution::other

Definition at line 64 of file Convolution.h.

self

BaseCore& lsst::afw::geom::ellipses::BaseCore::Convolution::self

Definition at line 63 of file Convolution.h.

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-12.0.0/Linux/afw/g9b50b81019+d8f85438e7/include/lsst/afw/geom/ellipses/Convolution.h
• /j/snowflake/release/lsstsw/stack/lsst-scipipe-12.0.0/Linux/afw/g9b50b81019+d8f85438e7/src/geom/ellipses/Convolution.cc