lsst.meas.base gdd7ff8183c+77dc2338e9
Public Types | Public Member Functions | Static Public Member Functions | Static Public Attributes | Protected Attributes | List of all members
lsst::meas::base::PeakLikelihoodFluxAlgorithm Class Reference

A measurement algorithm that estimates the peak instrument flux, using a filtered image which has been convolved with its own PSF. More...

#include <PeakLikelihoodFlux.h>

Inheritance diagram for lsst::meas::base::PeakLikelihoodFluxAlgorithm:
lsst::meas::base::SimpleAlgorithm lsst::meas::base::SingleFrameAlgorithm lsst::meas::base::ForcedAlgorithm lsst::meas::base::BaseAlgorithm lsst::meas::base::BaseAlgorithm

Public Types

typedef PeakLikelihoodFluxControl Control
 A typedef to the Control object for this algorithm, defined above. More...
 

Public Member Functions

 PeakLikelihoodFluxAlgorithm (Control const &ctrl, std::string const &name, afw::table::Schema &schema)
 
virtual void measure (afw::table::SourceRecord &measRecord, afw::image::Exposure< float > const &exposure) const
 Called to measure a single child source in an image. More...
 
virtual void fail (afw::table::SourceRecord &measRecord, MeasurementError *error=nullptr) const
 Handle an exception thrown by the current algorithm by setting flags in the given record. More...
 
virtual void measureForced (afw::table::SourceRecord &measRecord, afw::image::Exposure< float > const &exposure, afw::table::SourceRecord const &refRecord, afw::geom::SkyWcs const &refWcs) const
 Called to measure a single child source in an image. More...
 
virtual void measureNForced (afw::table::SourceCatalog const &measCat, afw::image::Exposure< float > const &exposure, afw::table::SourceCatalog const &refRecord, afw::geom::SkyWcs const &refWcs) const
 Called to simultaneously measure all children in a deblend family, in a single image. More...
 
virtual void measureN (afw::table::SourceCatalog const &measCat, afw::image::Exposure< float > const &exposure) const
 Called to simultaneously measure all children in a deblend family, in a single image. More...
 
std::string getLogName () const
 

Static Public Member Functions

static FlagDefinitionList const & getFlagDefinitions ()
 

Static Public Attributes

static FlagDefinition const FAILURE = flagDefinitions.addFailureFlag()
 

Protected Attributes

std::string _logName
 

Detailed Description

A measurement algorithm that estimates the peak instrument flux, using a filtered image which has been convolved with its own PSF.

Definition at line 71 of file PeakLikelihoodFlux.h.

Member Typedef Documentation

◆ Control

A typedef to the Control object for this algorithm, defined above.

The control object contains the configuration parameters for this algorithm.

Definition at line 79 of file PeakLikelihoodFlux.h.

Constructor & Destructor Documentation

◆ PeakLikelihoodFluxAlgorithm()

lsst::meas::base::PeakLikelihoodFluxAlgorithm::PeakLikelihoodFluxAlgorithm ( Control const &  ctrl,
std::string const &  name,
afw::table::Schema schema 
)

Definition at line 179 of file PeakLikelihoodFlux.cc.

Member Function Documentation

◆ fail()

void lsst::meas::base::PeakLikelihoodFluxAlgorithm::fail ( afw::table::SourceRecord measRecord,
MeasurementError error = nullptr 
) const
virtual

Handle an exception thrown by the current algorithm by setting flags in the given record.

fail() is called by the measurement framework when an exception is allowed to propagate out of one the algorithm's measure() methods. It should generally set both a general failure flag for the algorithm as well as a specific flag indicating the error condition, if possible. To aid in this, if the exception was an instance of MeasurementError, it will be passed in, carrying information about what flag to set.

An algorithm can also to chose to set flags within its own measure() methods, and then just return, rather than throw an exception. However, fail() should be implemented even when all known failure modes do not throw exceptions, to ensure that unexpected exceptions thrown in lower-level code are properly handled.

Implements lsst::meas::base::BaseAlgorithm.

Definition at line 244 of file PeakLikelihoodFlux.cc.

◆ getFlagDefinitions()

FlagDefinitionList const & lsst::meas::base::PeakLikelihoodFluxAlgorithm::getFlagDefinitions ( )
static

Definition at line 45 of file PeakLikelihoodFlux.cc.

◆ getLogName()

std::string lsst::meas::base::BaseAlgorithm::getLogName ( ) const
inlineinherited

Definition at line 66 of file Algorithm.h.

◆ measure()

void lsst::meas::base::PeakLikelihoodFluxAlgorithm::measure ( afw::table::SourceRecord measRecord,
afw::image::Exposure< float > const &  exposure 
) const
virtual

Called to measure a single child source in an image.

Before this method is called, all neighbors will be replaced with noise, using the outputs of the deblender. Outputs should be saved in the given SourceRecord, which can also be used to obtain centroid (see SafeCentroidExtractor) and shape (see SafeShapeExtractor) information.

Given an image and a pixel position, return a Flux

Exceptions
pex::exceptions::InvalidParameterErrorif the exposure has no PSF.
pex::exceptions::RangeErrorif the warping (centering) kernel is not fully contained within the exposure.
pex::exceptions::RangeErrorif the center not within exposure. (This avoids insane center values from confusing the test for warping kernel within exposure).

Implements lsst::meas::base::SingleFrameAlgorithm.

Definition at line 188 of file PeakLikelihoodFlux.cc.

◆ measureForced()

virtual void lsst::meas::base::SimpleAlgorithm::measureForced ( afw::table::SourceRecord measRecord,
afw::image::Exposure< float > const &  exposure,
afw::table::SourceRecord const &  refRecord,
afw::geom::SkyWcs const &  refWcs 
) const
inlinevirtualinherited

Called to measure a single child source in an image.

Before this method is called, all neighbors will be replaced with noise, using the outputs of the deblender. Outputs should be saved in the given SourceRecord, which can also be used to obtain centroid (see SafeCentroidExtractor) and shape (see SafeShapeExtractor) information.

Implements lsst::meas::base::ForcedAlgorithm.

Definition at line 172 of file Algorithm.h.

◆ measureN()

void lsst::meas::base::SingleFrameAlgorithm::measureN ( afw::table::SourceCatalog const &  measCat,
afw::image::Exposure< float > const &  exposure 
) const
virtualinherited

Called to simultaneously measure all children in a deblend family, in a single image.

Outputs should be saved in the given SourceCatalog, which can also be used to obtain centroid (see SafeCentroidExtractor) and shape (see SafeShapeExtractor) information.

The default implementation simply throws an exception, indicating that simultaneous measurement is not supported.

Definition at line 31 of file Algorithm.cc.

◆ measureNForced()

virtual void lsst::meas::base::SimpleAlgorithm::measureNForced ( afw::table::SourceCatalog const &  measCat,
afw::image::Exposure< float > const &  exposure,
afw::table::SourceCatalog const &  refRecord,
afw::geom::SkyWcs const &  refWcs 
) const
inlinevirtualinherited

Called to simultaneously measure all children in a deblend family, in a single image.

Outputs should be saved in the given SourceCatalog, which can also be used to obtain centroid (see SafeCentroidExtractor) and shape (see SafeShapeExtractor) information.

The default implementation simply throws an exception, indicating that simultaneous measurement is not supported.

Reimplemented from lsst::meas::base::ForcedAlgorithm.

Definition at line 179 of file Algorithm.h.

Member Data Documentation

◆ _logName

std::string lsst::meas::base::BaseAlgorithm::_logName
protectedinherited

Definition at line 69 of file Algorithm.h.

◆ FAILURE

FlagDefinition const lsst::meas::base::PeakLikelihoodFluxAlgorithm::FAILURE = flagDefinitions.addFailureFlag()
static

Definition at line 75 of file PeakLikelihoodFlux.h.


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