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LSST Data Management Base Package
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AstrometryMapping.h
Go to the documentation of this file.
1// -*- LSST-C++ -*-
2/*
3 * This file is part of jointcal.
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_JOINTCAL_ASTROMETRY_MAPPING_H
26#define LSST_JOINTCAL_ASTROMETRY_MAPPING_H
27
28#include <iostream>
29#include <vector>
31
32namespace lsst {
33namespace jointcal {
34
35class FatPoint;
36class Point;
37
40public:
42 virtual std::size_t getNpar() const = 0;
43
46 virtual void getMappingIndices(IndexVector &indices) const = 0;
47
49
52 virtual void computeTransformAndDerivatives(FatPoint const &where, FatPoint &outPoint,
53 Eigen::MatrixX2d &H) const = 0;
55 virtual void transformPosAndErrors(FatPoint const &where, FatPoint &outPoint) const = 0;
56
58 // virtual void freezeErrorTransform() = 0;
59
60 virtual void offsetParams(Eigen::VectorXd const &delta) = 0;
61
63 virtual void positionDerivative(Point const &where, Eigen::Matrix2d &derivative,
64 double epsilon) const = 0;
65
72 virtual void print(std::ostream &out) const = 0;
73
75 virtual ~AstrometryMapping() = default;;
76};
77
78inline std::ostream &operator<<(std::ostream &stream, AstrometryMapping const &mapping) {
79 mapping.print(stream);
80 return stream;
81}
82
83} // namespace jointcal
84} // namespace lsst
85#endif // LSST_JOINTCAL_ASTROMETRY_MAPPING_H
std::vector< std::ptrdiff_t > IndexVector
Definition Eigenstuff.h:38
virtual class needed in the abstraction of the distortion model
virtual void transformPosAndErrors(FatPoint const &where, FatPoint &outPoint) const =0
The same as above but without the parameter derivatives (used to evaluate chi^2)
virtual void computeTransformAndDerivatives(FatPoint const &where, FatPoint &outPoint, Eigen::MatrixX2d &H) const =0
Actually applies the AstrometryMapping and evaluates the derivatives w.r.t the fitted parameters.
virtual void offsetParams(Eigen::VectorXd const &delta)=0
Remember the error scale and freeze it.
virtual void getMappingIndices(IndexVector &indices) const =0
Sets how this set of parameters (of length Npar()) map into the "grand" fit Expects that indices has ...
virtual std::size_t getNpar() const =0
Number of parameters in total.
virtual ~AstrometryMapping()=default
virtual void positionDerivative(Point const &where, Eigen::Matrix2d &derivative, double epsilon) const =0
The derivative w.r.t. position.
virtual void print(std::ostream &out) const =0
Print a string representation of the contents of this mapping, for debugging.
A Point with uncertainties.
Definition FatPoint.h:34
A point in a plane.
Definition Point.h:37
basic_ostream< char, traits > & operator<<(basic_ostream< char, traits > &, const char *)