lsst.meas.base g7820879bc5+40555d1bda
CircularApertureFlux.cc
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1// -*- lsst-c++ -*-
2/*
3 * LSST Data Management System
4 * Copyright 2008-2014 LSST Corporation.
5 *
6 * This product includes software developed by the
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23
28
29namespace lsst {
30namespace meas {
31namespace base {
32
34 afw::table::Schema& schema,
35 daf::base::PropertySet& metadata)
36 : ApertureFluxAlgorithm(ctrl, name, schema, metadata) {
37 for (std::size_t i = 0; i < ctrl.radii.size(); ++i) {
38 if (ctrl.radii[i] > ctrl.maxSincRadius) break;
39 SincCoeffs<float>::cache(0.0, ctrl.radii[i]);
40 }
41}
42
44 afw::image::Exposure<float> const& exposure) const {
47 axes = std::static_pointer_cast<afw::geom::ellipses::Axes>(ellipse.getCorePtr());
48 for (std::size_t i = 0; i < _ctrl.radii.size(); ++i) {
49 // Each call to _centroidExtractor within this loop goes through exactly the same error-checking
50 // logic and returns the same result, but it's not expensive logic, so we just call it repeatedly
51 // instead of coming up with a new interface that would allow us to move it outside the loop.
52 ellipse.setCenter(_centroidExtractor(measRecord, getFlagHandler(i)));
53 axes->setA(_ctrl.radii[i]);
54 axes->setB(_ctrl.radii[i]);
56 copyResultToRecord(result, measRecord, i);
57 }
58}
59
60} // namespace base
61} // namespace meas
62} // namespace lsst
table::Key< std::string > name
void setCenter(lsst::geom::Point2D const &center)
std::shared_ptr< BaseCore const > getCorePtr() const
MaskedImageT getMaskedImage()
Base class for multiple-aperture photometry algorithms.
Definition: ApertureFlux.h:80
SafeCentroidExtractor _centroidExtractor
Definition: ApertureFlux.h:199
void copyResultToRecord(Result const &result, afw::table::SourceRecord &record, int index) const
Definition: ApertureFlux.cc:96
static Result computeFlux(afw::image::Image< T > const &image, afw::geom::ellipses::Ellipse const &ellipse, Control const &ctrl=Control())
Compute the instFlux (and optionally, uncertanties) within an aperture using the algorithm determined...
FlagHandler const & getFlagHandler(int index) const
Definition: ApertureFlux.h:196
Configuration object for multiple-aperture flux algorithms.
Definition: ApertureFlux.h:49
double maxSincRadius
"Maximum radius (in pixels) for which the sinc algorithm should be used instead of the " "faster naiv...
Definition: ApertureFlux.h:58
std::vector< double > radii
"Radius (in pixels) of apertures." ;
Definition: ApertureFlux.h:53
virtual void measure(afw::table::SourceRecord &record, afw::image::Exposure< float > const &exposure) const
Measure the configured apertures on the given image.
CircularApertureFluxAlgorithm(Control const &ctrl, std::string const &name, afw::table::Schema &schema, daf::base::PropertySet &metadata)
static void cache(float rInner, float rOuter)
Cache the coefficients for a particular aperture.
Definition: SincCoeffs.cc:491
T size(T... args)
A Result struct for running an aperture flux algorithm with a single radius.
Definition: ApertureFlux.h:217
table::Schema schema