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LSST Data Management Base Package
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VeresModel.h
Go to the documentation of this file.
1// -*- lsst-c++ -*-
2/*
3 * This file is part of meas_extensions_trailedSources.
4 *
5 * Developed for the LSST Data Management System.
6 * This product includes software developed by the LSST Project
7 * (https://www.lsst.org).
8 * See the COPYRIGHT file at the top-level directory of this distribution
9 * for details of code ownership.
10 *
11 * This program is free software: you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation, either version 3 of the License, or
14 * (at your option) any later version.
15 *
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
20 *
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <https://www.gnu.org/licenses/>.
23 */
24
25#ifndef LSST_MEAS_EXTENSIONS_TRAILEDSOURCES_VERES_MODEL_H
26#define LSST_MEAS_EXTENSIONS_TRAILEDSOURCES_VERES_MODEL_H
27
28#include "ndarray.h"
29
30#include "lsst/geom.h"
31#include "lsst/pex/config.h"
32#include "lsst/afw/image.h"
33#include "lsst/afw/geom.h"
34
35namespace lsst {
36namespace meas {
37namespace extensions {
38namespace trailedSources {
39
47class VeresModel final {
48public:
51
57 explicit VeresModel(ExposureF const& data);
58
59 VeresModel(VeresModel const &) = default;
60 VeresModel(VeresModel &&) = default;
61 VeresModel & operator=(VeresModel const &) = default;
63 ~VeresModel() = default;
64
79 double operator()(std::vector<double> const& params) const;
80
97
117
120
122 double getSigma() const noexcept { return _sigma; }
123
124private:
138 double _computeModel(double x, double y, double xc, double yc,
139 double flux, double length, double theta) const noexcept;
140
154 std::array<double, 5> _computeGradient(double x, double y, double xc, double yc,
155 double flux, double length, double theta) const noexcept;
156
157 double _sigma; // PSF sigma
158 lsst::geom::Box2I _bbox; // Data bounding box
159 ImageF::Array _data; // Image array of exposure
160 ImageF::Array _variance; // Variance array of exposure
161};
162
163}}}} // lsst::meas::extensions::trailedSources
164
165#endif // LSST_MEAS_EXTENSIONS_TRAILEDSOURCES_VERES_MODEL_H
A class to contain the data, WCS, and other information needed to describe an image of the sky.
Definition Exposure.h:72
typename ndarray::Array< float, 2, 1 > Array
Definition ImageBase.h:149
A class to represent a 2-dimensional array of pixels.
Definition Image.h:51
An integer coordinate rectangle.
Definition Box.h:55
VeresModel(ExposureF const &data)
Constructor for VeresModel.
Definition VeresModel.cc:39
std::vector< double > gradient(std::vector< double > const &params) const
Compute the gradient of chi-squared of the model given the data.
Definition VeresModel.cc:70
VeresModel & operator=(VeresModel &&)=default
std::shared_ptr< ImageF > computeModelImage(std::vector< double > const &params) const
Compute an image for a trail generated from the Veres model.
VeresModel & operator=(VeresModel const &)=default
std::tuple< double, std::vector< double > > computeFluxWithGradient(std::vector< double > const &params) const
Computes the flux and the gradient with respect to the other model parameters.
Definition VeresModel.cc:95
double operator()(std::vector< double > const &params) const
Compute chi-squared of the model given the data.
Definition VeresModel.cc:46
double getSigma() const noexcept
Return the PSF sigma.
Definition VeresModel.h:122