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LSST Data Management Base Package
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ImagePsf.cc
Go to the documentation of this file.
1// -*- LSST-C++ -*-
2/*
3 * LSST Data Management System
4 * Copyright 2008-2013 LSST Corporation.
5 *
6 * This product includes software developed by the
7 * LSST Project (http://www.lsst.org/).
8 *
9 * This program is free software: you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation, either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the LSST License Statement and
20 * the GNU General Public License along with this program. If not,
21 * see <http://www.lsstcorp.org/LegalNotices/>.
22 */
23
24#include "lsst/geom/Point.h"
30
31namespace lsst {
32namespace afw {
33namespace table {
34namespace io {
35
36template std::shared_ptr<meas::algorithms::ImagePsf>
37PersistableFacade<meas::algorithms::ImagePsf>::dynamicCast(std::shared_ptr<Persistable> const&);
38
39} // namespace io
40} // namespace table
41} // namespace afw
42namespace meas {
43namespace algorithms {
44
45double ImagePsf::doComputeApertureFlux(double radius, geom::Point2D const& position,
46 afw::image::Color const& color) const {
47 geom::Point2D const center(0.0, 0.0);
48 afw::geom::ellipses::Axes const axes(radius, radius);
49 afw::geom::ellipses::Ellipse ellipse(axes, center);
50 geom::Box2I box(ellipse.computeBBox());
51 // perhaps needs a grow here
53 if (!image.getBBox().contains(box)) {
54 box.include(image.getBBox());
55 afw::image::Image<double> paddedImage(box);
56 paddedImage = 0.0;
57 paddedImage.assign(image, image.getBBox());
58 image = paddedImage;
59 }
62 return result.instFlux;
63}
64
66 afw::image::Color const& color) const {
69 *image, geom::Point2D(0.0, 0.0) // image has origin at the center
70 )
71 .getShape();
72}
73
74} // namespace algorithms
75} // namespace meas
76} // namespace lsst
std::shared_ptr< Image > computeKernelImage(lsst::geom::Point2D position, image::Color color=image::Color(), ImageOwnerEnum owner=COPY) const
Return an Image of the PSF, in a form suitable for convolution.
Definition Psf.cc:114
@ INTERNAL
An internal image will be returned without copying.
Definition Psf.h:94
An ellipse core for the semimajor/semiminor axis and position angle parametrization (a,...
Definition Axes.h:47
An ellipse defined by an arbitrary BaseCore and a center point.
Definition Ellipse.h:51
lsst::geom::Box2D computeBBox() const
Return the bounding box of the ellipse.
Definition Ellipse.cc:55
An ellipse core with quadrupole moments as parameters.
Definition Quadrupole.h:47
Describe the colour of a source.
Definition Color.h:23
void assign(ImageBase const &rhs, lsst::geom::Box2I const &bbox=lsst::geom::Box2I(), ImageOrigin origin=PARENT)
Copy pixels from another image to a specified subregion of this image.
Definition Image.cc:153
A class to represent a 2-dimensional array of pixels.
Definition Image.h:51
static std::shared_ptr< T > dynamicCast(std::shared_ptr< Persistable > const &ptr)
Dynamically cast a shared_ptr.
An integer coordinate rectangle.
Definition Box.h:55
void include(Point2I const &point)
Expand this to ensure that this->contains(point).
Definition Box.cc:152
virtual afw::geom::ellipses::Quadrupole doComputeShape(geom::Point2D const &position, afw::image::Color const &color) const
Definition ImagePsf.cc:65
virtual double doComputeApertureFlux(double radius, geom::Point2D const &position, afw::image::Color const &color) const
Definition ImagePsf.cc:45
static Result computeSincFlux(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 Sinc photometry.
Configuration object for multiple-aperture flux algorithms.
static Result computeAdaptiveMoments(ImageT const &image, geom::Point2D const &position, bool negative=false, Control const &ctrl=Control())
Compute the adaptive Gaussian-weighted moments of an image.
Point< double, 2 > Point2D
Definition Point.h:324
A Result struct for running an aperture flux algorithm with a single radius.
Shape const getShape() const
Return an afw::geom::ellipses object corresponding to xx, yy, xy.