LSSTApplications  20.0.0
LSSTDataManagementBasePackage
Basis1d.h
Go to the documentation of this file.
1 // -*- LSST-C++ -*-
2 /*
3  * Developed for the LSST Data Management System.
4  * This product includes software developed by the LSST Project
5  * (https://www.lsst.org).
6  * See the COPYRIGHT file at the top-level directory of this distribution
7  * for details of code ownership.
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 GNU General Public License
20  * along with this program. If not, see <https://www.gnu.org/licenses/>.
21  */
22 #ifndef LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
23 #define LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
24 #ifdef DOXYGEN
25 
26 namespace lsst { namespace geom { namespace polynomials {
27 
36 class Basis1d {
37 public:
38 
40  using Function = ...;
41 
43  using Scaled = ...;
44 
47 
49  std::size_t size() const;
50 
57  Scaled scaled(Scaling1d const & scaling) const;
58 
83  template <typename Vector>
84  double sumWith(double x, Vector const & coefficients) const;
85 
100  template <typename Vector>
101  void fill(double x, Vector && basis) const;
102 
103 };
104 
105 }}} // namespace lsst::geom::polynomials
106 
107 #endif // DOXYGEN
108 #endif // !LSST_AFW_MATH_POLYNOMIALS_Basis1d_h_INCLUDED
coefficients
ndarray::Array< double const, 2, 2 > coefficients
Definition: ChebyshevBoundedField.cc:276
lsst::geom::polynomials::Basis1d::fill
void fill(double x, Vector &&basis) const
Evaluate the basis at a given point.
lsst::geom::polynomials::Scaling1d
A 1-d affine transform that can be used to map one interval to another.
Definition: Scaling1d.h:46
lsst::geom::polynomials::Basis1d::getOrder
std::size_t getOrder() const
Return the order of the basis.
x
double x
Definition: ChebyshevBoundedField.cc:277
lsst::geom::polynomials::Basis1d::scaled
Scaled scaled(Scaling1d const &scaling) const
Return a scaled basis that delegates to a copy of this.
lsst::meas::modelfit::Vector
Eigen::Matrix< Scalar, Eigen::Dynamic, 1 > Vector
Definition: common.h:46
basis
table::Key< table::Array< double > > basis
Definition: PsfexPsf.cc:361
lsst
A base class for image defects.
Definition: imageAlgorithm.dox:1
lsst::geom::polynomials::Basis1d::sumWith
double sumWith(double x, Vector const &coefficients) const
Evaluate a basis expansion with the given coefficients.
lsst::geom
Definition: geomOperators.dox:4
lsst::geom::polynomials::Basis1d::size
std::size_t size() const
Return the number of elements in the basis.
lsst::geom::polynomials::Basis1d::Scaled
... Scaled
The type returned by scale().
Definition: Basis1d.h:43
std::size_t
lsst::geom::polynomials::Basis1d::Function
... Function
A Function1d object that uses this basis.
Definition: Basis1d.h:40
scaling
table::Key< double > scaling
Definition: PixelAreaBoundedField.cc:133
lsst::geom::polynomials::Basis1d
A basis interface for 1-d series expansions.
Definition: Basis1d.h:36