12 LOG_LOGGER _log =
LOG_GET(
"jointcal.SimplePhotometryModel");
16 double instFluxFromMag(
double mag) {
return std::pow(10, mag / -2.5); }
23 unsigned ipar = firstIndex;
24 for (
auto const &i :
_myMap) {
25 auto mapping = i.second.get();
26 mapping->setIndex(ipar);
27 ipar += mapping->getNpar();
34 auto mapping = i.second.get();
35 mapping->offsetParams(delta.segment(mapping->getIndex(), mapping->getNpar()));
41 i.second->freezeErrorTransform();
48 if (indices.
size() < mapping->getNpar()) indices.
resize(mapping->getNpar());
49 indices[0] = mapping->getIndex();
55 total += i.second->getNpar();
62 Eigen::VectorXd &derivatives)
const {
64 mapping->computeParameterDerivatives(measuredStar, measuredStar.
getInstFlux(), derivatives);
69 stream << i.first <<
": ";
70 i.second->dump(stream);
79 "SimplePhotometryModel cannot find CcdImage " + ccdImage.
getName());
80 return i->second.get();
84 for (
auto const &
ccdImage : ccdImageList) {
85 auto photoCalib =
ccdImage->getPhotoCalib();
87 auto transfo = std::make_shared<FluxTransfoSpatiallyInvariant>(photoCalib->getCalibrationMean());
99 return mapping->transform(star, star.
getInstFlux());
110 return std::make_unique<afw::image::PhotoCalib>(calibration, oldPhotoCalib->getCalibrationErr());
115 for (
auto const &
ccdImage : ccdImageList) {
116 auto photoCalib =
ccdImage->getPhotoCalib();
118 double calib = magFromFlux(photoCalib->getCalibrationMean());
119 auto transfo = std::make_shared<MagnitudeTransfoSpatiallyInvariant>(calib);
132 return mapping->transform(star, star.
getInstMag());
142 double calibration = instFluxFromMag(
findMapping(ccdImage)->getParameters()[0]);
144 return std::make_unique<afw::image::PhotoCalib>(calibration, oldPhotoCalib->getCalibrationErr());
double transform(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
Return the on-sky transformed flux for measuredStar on ccdImage.
std::shared_ptr< afw::image::PhotoCalib > toPhotoCalib(CcdImage const &ccdImage) const override
Return the mapping of ccdImage represented as a PhotoCalib.
Relates transfo(s) to their position in the fitting matrix and allows interaction with the transfo(s)...
virtual Eigen::VectorXd getParameters()=0
std::string getName() const
Return the _name that identifies this ccdImage.
SimpleFluxModel(CcdImageList const &ccdImageList)
int getTotalParameters() const override
Return the total number of parameters in this model.
std::shared_ptr< afw::image::PhotoCalib > toPhotoCalib(CcdImage const &ccdImage) const override
Return the mapping of ccdImage represented as a PhotoCalib.
double getInstMag() const
void computeParameterDerivatives(MeasuredStar const &measuredStar, CcdImage const &ccdImage, Eigen::VectorXd &derivatives) const override
Compute the parametric derivatives of this model.
PhotometryMappingBase * findMapping(CcdImage const &ccdImage) const override
Return the mapping associated with this ccdImage.
#define LOGLS_INFO(logger, message)
SimpleMagnitudeModel(CcdImageList const &ccdImageList)
void getMappingIndices(CcdImage const &ccdImage, std::vector< unsigned > &indices) const override
Get how this set of parameters (of length Npar()) map into the "grand" fit.
std::shared_ptr< afw::image::PhotoCalib > getPhotoCalib() const
Return the exposure's photometric calibration.
Class for a simple mapping implementing a generic Gtransfo.
double getInstFlux() const
double getInstMagErr() const
double getInstFluxErr() const
double computeResidual(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
objects measured on actual images.
double transform(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
Return the on-sky transformed flux for measuredStar on ccdImage.
unsigned assignIndices(std::string const &whatToFit, unsigned firstIndex) override
Assign indices in the full matrix to the parameters being fit in the mappings, starting at firstIndex...
#define LSST_EXCEPT(type,...)
void offsetParams(Eigen::VectorXd const &delta) override
Offset the parameters by the provided amounts.
double computeResidual(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
CcdImageKey getHashKey() const
void dump(std::ostream &stream=std::cout) const override
Dump the contents of the transfos, for debugging.
Handler of an actual image from a single CCD.
std::shared_ptr< FittedStar > getFittedStar() const
double transformError(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
Return the on-sky transformed flux uncertainty for measuredStar on ccdImage.
Photometric response model which has a single photometric factor per CcdImage.
double transformError(CcdImage const &ccdImage, MeasuredStar const &measuredStar) const override
Return the on-sky transformed flux uncertainty for measuredStar on ccdImage.
void freezeErrorTransform() override
Once this routine has been called, the error transform is not modified by offsetParams().