LSSTApplications  17.0+11,17.0+34,17.0+56,17.0+57,17.0+59,17.0+7,17.0-1-g377950a+33,17.0.1-1-g114240f+2,17.0.1-1-g4d4fbc4+28,17.0.1-1-g55520dc+49,17.0.1-1-g5f4ed7e+52,17.0.1-1-g6dd7d69+17,17.0.1-1-g8de6c91+11,17.0.1-1-gb9095d2+7,17.0.1-1-ge9fec5e+5,17.0.1-1-gf4e0155+55,17.0.1-1-gfc65f5f+50,17.0.1-1-gfc6fb1f+20,17.0.1-10-g87f9f3f+1,17.0.1-11-ge9de802+16,17.0.1-16-ga14f7d5c+4,17.0.1-17-gc79d625+1,17.0.1-17-gdae4c4a+8,17.0.1-2-g26618f5+29,17.0.1-2-g54f2ebc+9,17.0.1-2-gf403422+1,17.0.1-20-g2ca2f74+6,17.0.1-23-gf3eadeb7+1,17.0.1-3-g7e86b59+39,17.0.1-3-gb5ca14a,17.0.1-3-gd08d533+40,17.0.1-30-g596af8797,17.0.1-4-g59d126d+4,17.0.1-4-gc69c472+5,17.0.1-6-g5afd9b9+4,17.0.1-7-g35889ee+1,17.0.1-7-gc7c8782+18,17.0.1-9-gc4bbfb2+3,w.2019.22
LSSTDataManagementBasePackage
GaussHermiteProjection.h
Go to the documentation of this file.
1 // -*- LSST-C++ -*-
2 /*
3  * LSST Data Management System
4  * Copyright 2008, 2009, 2010, 2011 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_AFW_MATH_SHAPELETS_GaussHermiteProjection
25 #define LSST_AFW_MATH_SHAPELETS_GaussHermiteProjection
26 
27 #include "Eigen/Core"
28 #include "lsst/afw/geom/ellipses.h"
30 
31 namespace lsst { namespace shapelet {
32 
34 public:
35 
37  Eigen::MatrixXd compute(
38  afw::geom::ellipses::Quadrupole const & inputEllipse, int inputOrder,
39  afw::geom::ellipses::Quadrupole const & outputEllipse, int outputOrder
40  ) const {
41  return compute(
42  inputEllipse.getGridTransform().getMatrix(), inputOrder,
43  outputEllipse.getGridTransform().getMatrix(), outputOrder
44  );
45  }
46 
48  Eigen::MatrixXd compute(
49  afw::geom::LinearTransform const & inputTransform, int inputOrder,
50  afw::geom::LinearTransform const & outputTransform, int outputOrder
51  ) const {
52  return compute(
53  inputTransform.getMatrix(), inputOrder,
54  outputTransform.getMatrix(), outputOrder
55  );
56  }
57 
59  Eigen::MatrixXd compute(
60  Eigen::Matrix2d const & inputTransform, int inputOrder,
61  Eigen::Matrix2d const & outputTransform, int outputOrder
62  ) const;
63 
64  int getMaxOrder() const { return _htm.getOrder(); }
65 
66  explicit GaussHermiteProjection(int maxOrder) : _htm(maxOrder) {}
67 
68 private:
70 };
71 }} // namespace lsst::shapelet
72 
73 #endif // !LSST_AFW_MATH_SHAPELETS_GaussHermiteProjection
An ellipse core with quadrupole moments as parameters.
Definition: Quadrupole.h:47
Matrix const & getMatrix() const noexcept
GridTransform const getGridTransform() const
Return the transform that maps the ellipse to the unit circle.
A base class for image defects.
Eigen::MatrixXd compute(afw::geom::ellipses::Quadrupole const &inputEllipse, int inputOrder, afw::geom::ellipses::Quadrupole const &outputEllipse, int outputOrder) const
Compute a matrix that projects from one shapelet basis ellipse to another.
int getOrder() const
Return the maximum order at which the matrix can be computed.
lsst::geom::LinearTransform::Matrix getMatrix() const
Return the transform matrix as an Eigen object.
Eigen::MatrixXd compute(afw::geom::LinearTransform const &inputTransform, int inputOrder, afw::geom::LinearTransform const &outputTransform, int outputOrder) const
Compute a matrix that projects from one shapelet basis "grid transform" to another.
A 2D linear coordinate transformation.
A class that computes a matrix that applies a linear transform to a 2-d Hermite polynomial expansion...