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 296 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 298 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 312 of file DipoleAlgorithms.cc.

{ return _maxPix; }

getNpar()

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

inline

Definition at line 311 of file DipoleAlgorithms.cc.

{ return _nPar; }

operator()()

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

inlinevirtual

Definition at line 316 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 310 of file DipoleAlgorithms.cc.

{ _errorDef = def; }

setMaxPix()

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

inline

Definition at line 313 of file DipoleAlgorithms.cc.

{ _maxPix = maxPix; }

Up()

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

inline

Definition at line 309 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/1a1d771/Linux64/ip_diffim/20.0.0/src/DipoleAlgorithms.cc