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LSST Data Management Base Package
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Public Types | Public Member Functions | Protected Member Functions | Protected Attributes | List of all members
lsst::meas::base::ApertureFluxTransform Class Reference

Measurement transformation for aperture fluxes. More...

#include <ApertureFlux.h>

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

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::geom::SkyWcs const &wcs, afw::image::PhotoCalib const &photoCalib) const
 

Protected Member Functions

void checkCatalogSize (afw::table::BaseCatalog const &cat1, afw::table::BaseCatalog const &cat2) const
 Ensure that catalogs have the same size.
 

Protected Attributes

std::string _name
 

Detailed Description

Measurement transformation for aperture fluxes.

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

Definition at line 242 of file ApertureFlux.h.

Member Typedef Documentation

◆ Control

Definition at line 244 of file ApertureFlux.h.

Constructor & Destructor Documentation

◆ ApertureFluxTransform()

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

Definition at line 256 of file ApertureFlux.cc.

258 : BaseTransform(name), _ctrl(ctrl) {
259 for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
261 FlagDefinition const &flag = ApertureFluxAlgorithm::getFlagDefinitions()[j];
262 if (_ctrl.radii[i] > _ctrl.maxSincRadius &&
264 continue;
265 }
266 mapper.addMapping(
267 mapper.getInputSchema()
268 .find<afw::table::Flag>(
269 (boost::format("%s_%s") %
270 ApertureFluxAlgorithm::makeFieldPrefix(name, _ctrl.radii[i]) % flag.name)
271 .str())
272 .key);
273 }
274 _magKeys.push_back(MagResultKey::addFields(
275 mapper.editOutputSchema(), ApertureFluxAlgorithm::makeFieldPrefix(name, _ctrl.radii[i])));
276 }
277}
SchemaMapper * mapper
static FlagDefinitionList const & getFlagDefinitions()
static FlagDefinition const SINC_COEFFS_TRUNCATED
static std::string makeFieldPrefix(std::string const &name, double radius)
Construct an appropriate prefix for table fields.
double maxSincRadius
"Maximum radius (in pixels) for which the sinc algorithm should be used instead of the " "faster naiv...
std::vector< double > radii
"Radius (in pixels) of apertures." ;
std::size_t size() const
return the current size (number of defined elements) of the collection
static MagResultKey addFields(afw::table::Schema &schema, std::string const &name)
Add a pair of _mag, _magErr fields to a Schema, and return a MagResultKey that points to them.
T size(T... args)

Member Function Documentation

◆ checkCatalogSize()

void lsst::meas::base::BaseTransform::checkCatalogSize ( afw::table::BaseCatalog const & cat1,
afw::table::BaseCatalog const & cat2 ) const
inlineprotectedinherited

Ensure that catalogs have the same size.

Parameters
[in]cat1Catalog for comparison
[in]cat2Catalog for comparison
Exceptions
LengthErrorCatalog sizes do not match

Definition at line 102 of file Transform.h.

102 {
103 if (cat1.size() != cat2.size()) {
104 throw LSST_EXCEPT(pex::exceptions::LengthError, "Catalog size mismatch");
105 }
106 }
#define LSST_EXCEPT(type,...)
Create an exception with a given type.
Definition Exception.h:48

◆ operator()()

void lsst::meas::base::ApertureFluxTransform::operator() ( afw::table::SourceCatalog const & inputCatalog,
afw::table::BaseCatalog & outputCatalog,
afw::geom::SkyWcs const & wcs,
afw::image::PhotoCalib const & photoCalib ) const
virtual

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

Definition at line 279 of file ApertureFlux.cc.

281 {
282 checkCatalogSize(inputCatalog, outputCatalog);
283 std::vector<FluxResultKey> instFluxKeys;
284 for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
285 instFluxKeys.push_back(FluxResultKey(
286 inputCatalog.getSchema()[ApertureFluxAlgorithm::makeFieldPrefix(_name, _ctrl.radii[i])]));
287 }
288 afw::table::SourceCatalog::const_iterator inSrc = inputCatalog.begin();
289 afw::table::BaseCatalog::iterator outSrc = outputCatalog.begin();
290 {
291 for (; inSrc != inputCatalog.end() && outSrc != outputCatalog.end(); ++inSrc, ++outSrc) {
292 for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
293 FluxResult instFluxResult = instFluxKeys[i].get(*inSrc);
294 _magKeys[i].set(*outSrc, photoCalib.instFluxToMagnitude(instFluxResult.instFlux,
295 instFluxResult.instFluxErr));
296 }
297 }
298 }
299}
CatalogIterator< typename Internal::iterator > iterator
Definition Catalog.h:110
typename Base::const_iterator const_iterator
void checkCatalogSize(afw::table::BaseCatalog const &cat1, afw::table::BaseCatalog const &cat2) const
Ensure that catalogs have the same size.
Definition Transform.h:102
T push_back(T... args)

Member Data Documentation

◆ _name

std::string lsst::meas::base::BaseTransform::_name
protectedinherited

Definition at line 107 of file Transform.h.


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