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LSST Data Management Base Package
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DoubleGaussianPsf.h
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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#ifndef LSST_MEAS_ALGORITHMS_DoubleGaussianPsf_h_INCLUDED
25#define LSST_MEAS_ALGORITHMS_DoubleGaussianPsf_h_INCLUDED
26
28
29namespace lsst {
30namespace meas {
31namespace algorithms {
32
34class DoubleGaussianPsf : public afw::table::io::PersistableFacade<DoubleGaussianPsf>, public KernelPsf {
35public:
45 DoubleGaussianPsf(int width, int height, double sigma1, double sigma2 = 0.0, double b = 0.0);
46
49
51 std::shared_ptr<afw::detection::Psf> resized(int width, int height) const override;
52
54 double getSigma1() const { return _sigma1; }
55
57 double getSigma2() const { return _sigma2; }
58
60 double getB() const { return _b; }
61
63 bool isPersistable() const noexcept override { return true; }
64
65protected:
66 std::string getPersistenceName() const override;
67
68 void write(OutputArchiveHandle& handle) const override;
69
70private:
71 double _sigma1;
72 double _sigma2;
73 double _b;
74};
75
76} // namespace algorithms
77} // namespace meas
78} // namespace lsst
79
80#endif // !LSST_MEAS_ALGORITHMS_DoubleGaussianPsf_h_INCLUDED
table::Key< double > sigma2
table::Key< double > sigma1
table::Key< int > b
A CRTP facade class for subclasses of Persistable.
io::OutputArchiveHandle OutputArchiveHandle
Represent a Psf as a circularly symmetrical double Gaussian.
bool isPersistable() const noexcept override
Whether this Psf is persistable (always true for DoubleGaussianPsf).
std::string getPersistenceName() const override
Return the unique name used to persist this object and look up its factory.
void write(OutputArchiveHandle &handle) const override
Write the object to one or more catalogs.
double getSigma1() const
Return the radius of the inner Gaussian.
DoubleGaussianPsf(int width, int height, double sigma1, double sigma2=0.0, double b=0.0)
Constructor for a DoubleGaussianPsf.
double getSigma2() const
Return the radius of the outer Gaussian.
std::shared_ptr< afw::detection::Psf > clone() const override
Polymorphic deep copy. Usually unnecessary, as Psfs are immutable.
double getB() const
Return the ratio of Gaussian peak amplitudes: outer/inner.
std::shared_ptr< afw::detection::Psf > resized(int width, int height) const override
Return a clone with specified kernel dimensions.
A Psf defined by a Kernel.
Definition KernelPsf.h:36