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Axes.cc
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1// -*- lsst-c++ -*-
2
3/*
4 * LSST Data Management System
5 * Copyright 2008, 2009, 2010 LSST Corporation.
6 *
7 * This product includes software developed by the
8 * LSST Project (http://www.lsst.org/).
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the LSST License Statement and
21 * the GNU General Public License along with this program. If not,
22 * see <http://www.lsstcorp.org/LegalNotices/>.
23 */
26
27namespace lsst {
28namespace afw {
29namespace geom {
30namespace ellipses {
31
32BaseCore::Registrar<Axes> Axes::registrar;
33
34std::string Axes::getName() const { return "Axes"; }
35
37 if (_vector[A] < 0 || _vector[B] < 0)
39 "Major and minor axes cannot be negative.");
40 if (_vector[A] < _vector[B]) {
41 std::swap(_vector[A], _vector[B]);
42 _vector[THETA] += M_PI_2;
43 }
44 if (_vector[THETA] > M_PI_2 || _vector[THETA] <= -M_PI_2) {
45 _vector[THETA] -= M_PI * std::ceil(_vector[THETA] / M_PI - 0.5);
46 }
47}
48
49void Axes::readParameters(double const* iter) {
50 setA(*iter++);
51 setB(*iter++);
52 setTheta(*iter++);
53}
54
55void Axes::writeParameters(double* iter) const {
56 *iter++ = getA();
57 *iter++ = getB();
58 *iter++ = getTheta();
59}
60
61void Axes::_assignToQuadrupole(double& ixx, double& iyy, double& ixy) const {
62 BaseCore::_assignAxesToQuadrupole(_vector[A], _vector[B], _vector[THETA], ixx, iyy, ixy);
63}
64
65BaseCore::Jacobian Axes::_dAssignToQuadrupole(double& ixx, double& iyy, double& ixy) const {
66 return BaseCore::_dAssignAxesToQuadrupole(_vector[A], _vector[B], _vector[THETA], ixx, iyy, ixy);
67}
68
69void Axes::_assignToAxes(double& a, double& b, double& theta) const {
70 a = _vector[A];
71 b = _vector[B];
72 theta = _vector[THETA];
73}
74
75BaseCore::Jacobian Axes::_dAssignToAxes(double& a, double& b, double& theta) const {
76 a = _vector[A];
77 b = _vector[B];
78 theta = _vector[THETA];
79 return Jacobian::Identity();
80}
81
82void Axes::_assignFromQuadrupole(double ixx, double iyy, double ixy) {
83 BaseCore::_assignQuadrupoleToAxes(ixx, iyy, ixy, _vector[A], _vector[B], _vector[THETA]);
84 normalize();
85}
86
87BaseCore::Jacobian Axes::_dAssignFromQuadrupole(double ixx, double iyy, double ixy) {
88 return BaseCore::_dAssignQuadrupoleToAxes(ixx, iyy, ixy, _vector[A], _vector[B], _vector[THETA]);
89 normalize();
90}
91
92void Axes::_assignFromAxes(double a, double b, double theta) {
93 _vector[A] = a;
94 _vector[B] = b;
95 _vector[THETA] = theta;
96}
97
98BaseCore::Jacobian Axes::_dAssignFromAxes(double a, double b, double theta) {
99 _vector[A] = a;
100 _vector[B] = b;
101 _vector[THETA] = theta;
102 return Jacobian::Identity();
103}
104} // namespace ellipses
105} // namespace geom
106} // namespace afw
107} // namespace lsst
#define LSST_EXCEPT(type,...)
Create an exception with a given type.
Definition Exception.h:48
#define M_PI
Definition ListMatch.cc:31
table::Key< int > b
table::Key< int > a
T ceil(T... args)
void _assignFromAxes(double a, double b, double theta) override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:92
std::string getName() const override
Return a string that identifies this parametrization.
Definition Axes.cc:34
Jacobian _dAssignToAxes(double &a, double &b, double &theta) const override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:75
double const getTheta() const
Definition Axes.h:57
Jacobian _dAssignFromQuadrupole(double ixx, double iyy, double ixy) override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:87
void writeParameters(double *iter) const override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:55
double const getA() const
Definition Axes.h:51
void _assignFromQuadrupole(double ixx, double iyy, double ixy) override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:82
void normalize() override
Put the parameters into a "standard form", if possible, and throw InvalidParameterError if they canno...
Definition Axes.cc:36
void setTheta(double theta)
Definition Axes.h:58
double const getB() const
Definition Axes.h:54
void readParameters(double const *iter) override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:49
void _assignToQuadrupole(double &ixx, double &iyy, double &ixy) const override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:61
Jacobian _dAssignFromAxes(double a, double b, double theta) override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:98
Jacobian _dAssignToQuadrupole(double &ixx, double &iyy, double &ixy) const override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:65
void _assignToAxes(double &a, double &b, double &theta) const override
Return the size of the bounding box for the ellipse core.
Definition Axes.cc:69
static Jacobian _dAssignAxesToQuadrupole(double a, double b, double theta, double &ixx, double &iyy, double &ixy)
Return the size of the bounding box for the ellipse core.
Definition BaseCore.cc:231
static void _assignAxesToQuadrupole(double a, double b, double theta, double &ixx, double &iyy, double &ixy)
Return the size of the bounding box for the ellipse core.
Definition BaseCore.cc:218
static Jacobian _dAssignQuadrupoleToAxes(double ixx, double iyy, double ixy, double &a, double &b, double &theta)
Return the size of the bounding box for the ellipse core.
Definition BaseCore.cc:193
static void _assignQuadrupoleToAxes(double ixx, double iyy, double ixy, double &a, double &b, double &theta)
Return the size of the bounding box for the ellipse core.
Definition BaseCore.cc:183
Eigen::Matrix3d Jacobian
Parameter Jacobian matrix type.
Definition BaseCore.h:64
Reports invalid arguments.
Definition Runtime.h:66
T swap(T... args)