lsst::ip::diffim::MinimizeDipoleChi2 Class Reference

Class to minimize PsfDipoleFlux; this is the object that Minuit minimizes. More...

Inheritance diagram for lsst::ip::diffim::MinimizeDipoleChi2:

Public Member Functions
	MinimizeDipoleChi2 (PsfDipoleFlux const &psfDipoleFlux, afw::table::SourceRecord &source, afw::image::Exposure< float > const &exposure)
double	Up () const
void	setErrorDef (double def)
int	getNpar () const
int	getMaxPix () const
void	setMaxPix (int maxPix)
virtual double	operator() (std::vector< double > const &params) const

Detailed Description

Class to minimize PsfDipoleFlux; this is the object that Minuit minimizes.

Definition at line 92 of file DipoleAlgorithms.cc.

Constructor & Destructor Documentation

MinimizeDipoleChi2()

lsst::ip::diffim::MinimizeDipoleChi2::MinimizeDipoleChi2 ( PsfDipoleFlux const & psfDipoleFlux, afw::table::SourceRecord & source, afw::image::Exposure< float > const & exposure )

inlineexplicit

Definition at line 94 of file DipoleAlgorithms.cc.

                                  : _errorDef(1.0),
                                    _nPar(6),
                                    _maxPix(1e4),
                                    _bigChi2(1e10),
                                    _psfDipoleFlux(psfDipoleFlux),
                                    _source(source),
                                    _exposure(exposure)
    {}

Member Function Documentation

getMaxPix()

int lsst::ip::diffim::MinimizeDipoleChi2::getMaxPix ( ) const

inline

Definition at line 108 of file DipoleAlgorithms.cc.

{ return _maxPix; }

getNpar()

int lsst::ip::diffim::MinimizeDipoleChi2::getNpar ( ) const

inline

Definition at line 107 of file DipoleAlgorithms.cc.

{ return _nPar; }

operator()()

virtual double lsst::ip::diffim::MinimizeDipoleChi2::operator() ( std::vector< double > const & params ) const

inlinevirtual

Definition at line 112 of file DipoleAlgorithms.cc.

                                                                      {
        double negCenterX = params[NEGCENTXPAR];
        double negCenterY = params[NEGCENTYPAR];
        double negFlux    = params[NEGFLUXPAR];
        double posCenterX = params[POSCENTXPAR];
        double posCenterY = params[POSCENTYPAR];
        double posFlux    = params[POSFLUXPAR];
 
        /* Restrict negative dipole to be negative; positive to be positive */
        if ((negFlux > 0.0) || (posFlux < 0.0)) {
            return _bigChi2;
        }
 
        std::pair<double,int> fit = _psfDipoleFlux.chi2(_source, _exposure, negCenterX, negCenterY, negFlux,
                                                        posCenterX, posCenterY, posFlux);
        double chi2 = fit.first;
        int nPix = fit.second;
        if (nPix > _maxPix) {
            return _bigChi2;
        }
 
        return chi2;
    }

setErrorDef()

void lsst::ip::diffim::MinimizeDipoleChi2::setErrorDef ( double def )

inline

Definition at line 106 of file DipoleAlgorithms.cc.

{ _errorDef = def; }

setMaxPix()

void lsst::ip::diffim::MinimizeDipoleChi2::setMaxPix ( int maxPix )

inline

Definition at line 109 of file DipoleAlgorithms.cc.

{ _maxPix = maxPix; }

Up()

double lsst::ip::diffim::MinimizeDipoleChi2::Up ( ) const

inline

Definition at line 105 of file DipoleAlgorithms.cc.

{ return _errorDef; }

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

• /j/snowflake/release/lsstsw/stack/lsst-scipipe-12.0.0/Linux/ip_diffim/g5b326b94bb+dcc56af22d/src/DipoleAlgorithms.cc