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LSST Data Management Base Package
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ChebyMap.h
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1/*
2 * LSST Data Management System
3 * Copyright 2017 AURA/LSST.
4 *
5 * This product includes software developed by the
6 * LSST Project (http://www.lsst.org/).
7 *
8 * This program is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
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19 * the GNU General Public License along with this program. If not,
20 * see <https://www.lsstcorp.org/LegalNotices/>.
21 */
22#ifndef ASTSHIM_CHEBYMAP_H
23#define ASTSHIM_CHEBYMAP_H
24
25#include <algorithm>
26#include <memory>
27#include <vector>
28
29#include "astshim/base.h"
30#include "astshim/Mapping.h"
31
32namespace ast {
33
49
97class ChebyMap : public Mapping {
98 friend class Object;
99
100public:
161 explicit ChebyMap(ConstArray2D const &coeff_f, ConstArray2D const &coeff_i,
162 std::vector<double> const &lbnd_f, std::vector<double> const &ubnd_f,
163 std::vector<double> const &lbnd_i, std::vector<double> const &ubnd_i,
164 std::string const &options = "")
165 : Mapping(reinterpret_cast<AstMapping *>(
166 _makeRawChebyMap(coeff_f, coeff_i, lbnd_f, ubnd_f, lbnd_i, ubnd_i, options))) {}
167
184 explicit ChebyMap(ConstArray2D const &coeff_f, int nout, std::vector<double> const &lbnd_f,
185 std::vector<double> const &ubnd_f, std::string const &options = "IterInverse=0")
186 : Mapping(reinterpret_cast<AstMapping *>(
187 _makeRawChebyMap(coeff_f, nout, lbnd_f, ubnd_f, options))) {}
188
189 virtual ~ChebyMap() {}
190
192 ChebyMap(ChebyMap const &) = default;
193 ChebyMap(ChebyMap &&) = default;
194 ChebyMap &operator=(ChebyMap const &) = delete;
196
198 std::shared_ptr<ChebyMap> copy() const { return std::static_pointer_cast<ChebyMap>(copyPolymorphic()); }
199
214 ChebyDomain getDomain(bool forward) const;
215
297 ChebyMap polyTran(bool forward, double acc, double maxacc, int maxorder, std::vector<double> const &lbnd,
298 std::vector<double> const &ubnd) const;
299
304 ChebyMap polyTran(bool forward, double acc, double maxacc, int maxorder) const;
305
306protected:
307 virtual std::shared_ptr<Object> copyPolymorphic() const override {
308 return copyImpl<ChebyMap, AstChebyMap>();
309 }
310
312 ChebyMap(AstChebyMap *map);
313
314private:
316 AstChebyMap *_makeRawChebyMap(ConstArray2D const &coeff_f, ConstArray2D const &coeff_i,
317 std::vector<double> const &lbnd_f, std::vector<double> const &ubnd_f,
318 std::vector<double> const &lbnd_i, std::vector<double> const &ubnd_i,
319 std::string const &options = "") const;
320
322 AstChebyMap *_makeRawChebyMap(ConstArray2D const &coeff_f, int nout, std::vector<double> const &lbnd_f,
323 std::vector<double> const &ubnd_f, std::string const &options = "") const;
324};
325
326} // namespace ast
327
328#endif
The domain over which a Chebyshev polynomial is defined; returned by ChebyMap.getDomain.
Definition ChebyMap.h:37
std::vector< double > const lbnd
lower bound of domain (one element per axis)
Definition ChebyMap.h:46
ChebyDomain(std::vector< double > const &lbnd, std::vector< double > const &ubnd)
Construct a ChebyDomain.
Definition ChebyMap.h:45
std::vector< double > const ubnd
upper bound of domain (one element per axis)
Definition ChebyMap.h:47
A ChebyMap is a form of Mapping which performs a Chebyshev polynomial transformation.
Definition ChebyMap.h:97
virtual ~ChebyMap()
Definition ChebyMap.h:189
std::shared_ptr< ChebyMap > copy() const
Return a deep copy of this object.
Definition ChebyMap.h:198
ChebyMap(ChebyMap &&)=default
ChebyMap(ChebyMap const &)=default
Copy constructor: make a deep copy.
ChebyMap(ConstArray2D const &coeff_f, int nout, std::vector< double > const &lbnd_f, std::vector< double > const &ubnd_f, std::string const &options="IterInverse=0")
Construct a ChebyMap with only the forward transform specified.
Definition ChebyMap.h:184
virtual std::shared_ptr< Object > copyPolymorphic() const override
Return a deep copy of this object.
Definition ChebyMap.h:307
ChebyMap & operator=(ChebyMap const &)=delete
ChebyMap(ConstArray2D const &coeff_f, ConstArray2D const &coeff_i, std::vector< double > const &lbnd_f, std::vector< double > const &ubnd_f, std::vector< double > const &lbnd_i, std::vector< double > const &ubnd_i, std::string const &options="")
Construct a ChebyMap with a specified forward and/or inverse transforms.
Definition ChebyMap.h:161
ChebyDomain getDomain(bool forward) const
Return the bounding box of the domain of a ChebyMap.
Definition ChebyMap.cc:57
ChebyMap polyTran(bool forward, double acc, double maxacc, int maxorder, std::vector< double > const &lbnd, std::vector< double > const &ubnd) const
This function creates a new ChebyMap which is a copy of this one, in which a specified transformation...
Definition ChebyMap.cc:30
ChebyMap & operator=(ChebyMap &&)=default
An abstract base class for objects which transform one set of coordinates to another.
Definition Mapping.h:59
Abstract base class for all AST objects.
Definition Object.h:51
AST wrapper classes and functions.
ndarray::Array< const double, 2, 2 > ConstArray2D
2D array of const double; typically used for lists of const points
Definition base.h:46