lsst::meas::base::ApertureFluxTransform Class Reference

#include <ApertureFlux.h>

Inheritance diagram for lsst::meas::base::ApertureFluxTransform:

Public Types
typedef ApertureFluxControl	Control

Public Member Functions
	ApertureFluxTransform (Control const &ctrl, std::string const &name, afw::table::SchemaMapper &mapper)
virtual void	operator() (afw::table::SourceCatalog const &inputCatalog, afw::table::BaseCatalog &outputCatalog, afw::image::Wcs const &wcs, afw::image::Calib const &calib) const
Public Member Functions inherited from lsst::meas::base::BaseTransform
	BaseTransform (std::string const &name)
virtual	~BaseTransform ()

Private Attributes
std::vector< MagResultKey >	_magKeys
Control	_ctrl

Additional Inherited Members
Protected Member Functions inherited from lsst::meas::base::BaseTransform
void	checkCatalogSize (afw::table::BaseCatalog const &cat1, afw::table::BaseCatalog const &cat2) const
	Ensure that catalogs have the same size. More...
Protected Attributes inherited from lsst::meas::base::BaseTransform
std::string	_name

Detailed Description

Measurement transformation for aperture fluxes

Transforms fluxes with associated errors to magnitudes. Correctly handles multiple apertures. Flags are propagated from input to output.

Definition at line 269 of file ApertureFlux.h.

Member Typedef Documentation

typedef ApertureFluxControl lsst::meas::base::ApertureFluxTransform::Control

Definition at line 271 of file ApertureFlux.h.

Constructor & Destructor Documentation

lsst::meas::base::ApertureFluxTransform::ApertureFluxTransform	(	Control const &	ctrl,
		std::string const &	name,
		afw::table::SchemaMapper &	mapper
	)

Definition at line 323 of file ApertureFlux.cc.

  :
    BaseTransform(name),
    _ctrl(ctrl)
{
    for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
        for (auto flag = getFlagDefinitions().begin();
            flag < getFlagDefinitions().begin() + (_ctrl.radii[i] <= _ctrl.maxSincRadius ? 3 : 2); flag++) {
            mapper.addMapping(mapper.getInputSchema().find<afw::table::Flag>((boost::format("%s_%s") %
                              ApertureFluxAlgorithm::makeFieldPrefix(name, _ctrl.radii[i]) %
                              flag->name).str()).key);
        }
        _magKeys.push_back(MagResultKey::addFields(mapper.editOutputSchema(),
                           ApertureFluxAlgorithm::makeFieldPrefix(name, _ctrl.radii[i])));
    }
}

Member Function Documentation

void lsst::meas::base::ApertureFluxTransform::operator() ( afw::table::SourceCatalog const &  inputCatalog, afw::table::BaseCatalog &  outputCatalog, afw::image::Wcs const &  wcs, afw::image::Calib const &  calib  ) const

virtual

Implements lsst::meas::base::BaseTransform.

Definition at line 343 of file ApertureFlux.cc.

        {
    checkCatalogSize(inputCatalog, outputCatalog);
    std::vector<FluxResultKey> fluxKeys;
    for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
        fluxKeys.push_back(FluxResultKey(inputCatalog.getSchema()[
                           ApertureFluxAlgorithm::makeFieldPrefix(_name, _ctrl.radii[i])]));
    }
    afw::table::SourceCatalog::const_iterator inSrc = inputCatalog.begin();
    afw::table::BaseCatalog::iterator outSrc = outputCatalog.begin();
    {
        // While noThrow is in scope, converting a negative flux to a magnitude
        // returns NaN rather than throwing.
        NoThrowOnNegativeFluxContext noThrow;
        for (; inSrc != inputCatalog.end() && outSrc != outputCatalog.end(); ++inSrc, ++outSrc) {
            for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
                FluxResult fluxResult = fluxKeys[i].get(*inSrc);
                _magKeys[i].set(*outSrc, calib.getMagnitude(fluxResult.flux, fluxResult.fluxSigma));
            }
        }
    }
}

Member Data Documentation

Control lsst::meas::base::ApertureFluxTransform::_ctrl

private

Definition at line 289 of file ApertureFlux.h.

std::vector<MagResultKey> lsst::meas::base::ApertureFluxTransform::_magKeys

private

Definition at line 288 of file ApertureFlux.h.

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

• /home/lsstsw/stack/Linux64/meas_base/11.0+1/include/lsst/meas/base/ApertureFlux.h
• /home/lsstsw/stack/Linux64/meas_base/11.0+1/src/ApertureFlux.cc