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LSST Data Management Base Package
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LutMap.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 *
18 * You should have received a copy of the LSST License Statement and
19 * the GNU General Public License along with this program. If not,
20 * see <https://www.lsstcorp.org/LegalNotices/>.
21 */
22#ifndef ASTSHIM_LUTMAP_H
23#define ASTSHIM_LUTMAP_H
24
25#include <memory>
26
27#include "astshim/base.h"
28#include "astshim/Mapping.h"
29
30namespace ast {
31
60class LutMap : public Mapping {
61 friend class Object;
62
63public:
75 explicit LutMap(std::vector<double> const &lut, double start, double inc, std::string const &options = "")
76 : Mapping(reinterpret_cast<AstMapping *>(
77 astLutMap(lut.size(), lut.data(), start, inc, "%s", options.c_str()))) {
78 assertOK();
79 }
80
81 virtual ~LutMap() {}
82
84 LutMap(LutMap const &) = default;
85 LutMap(LutMap &&) = default;
86 LutMap &operator=(LutMap const &) = delete;
87 LutMap &operator=(LutMap &&) = default;
88
90 std::shared_ptr<LutMap> copy() const { return std::static_pointer_cast<LutMap>(copyPolymorphic()); }
91
95 double getLutEpsilon() const { return getD("LutEpsilon"); }
96
100 int getLutInterp() const { return getI("LutInterp"); }
101
102protected:
103 virtual std::shared_ptr<Object> copyPolymorphic() const override {
104 return copyImpl<LutMap, AstLutMap>();
105 }
106
108 explicit LutMap(AstLutMap *rawptr) : Mapping(reinterpret_cast<AstMapping *>(rawptr)) {
109 if (!astIsALutMap(getRawPtr())) {
111 os << "this is a " << getClassName() << ", which is not a LutMap";
112 throw std::invalid_argument(os.str());
113 }
114 }
115};
116
117} // namespace ast
118
119#endif
char * data
Definition BaseRecord.cc:61
std::ostream * os
Definition Schema.cc:557
LutMap is a specialised form of Mapping which transforms 1-dimensional coordinates by using linear in...
Definition LutMap.h:60
LutMap & operator=(LutMap &&)=default
LutMap & operator=(LutMap const &)=delete
LutMap(AstLutMap *rawptr)
Construct an LutMap from a raw AST pointer.
Definition LutMap.h:108
double getLutEpsilon() const
Get attribute LutEpsilon: the relative error of the values in the table.
Definition LutMap.h:95
std::shared_ptr< LutMap > copy() const
Return a deep copy of this object.
Definition LutMap.h:90
int getLutInterp() const
Get attribute LutInterp: the interpolation method to use between table entries.
Definition LutMap.h:100
virtual ~LutMap()
Definition LutMap.h:81
virtual std::shared_ptr< Object > copyPolymorphic() const override
Return a deep copy of this object.
Definition LutMap.h:103
LutMap(LutMap &&)=default
LutMap(std::vector< double > const &lut, double start, double inc, std::string const &options="")
Construct an LutMap.
Definition LutMap.h:75
LutMap(LutMap const &)=default
Copy constructor: make a deep copy.
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
double getD(std::string const &attrib) const
Get the value of an attribute as a double.
Definition Object.h:374
std::string getClassName() const
Get Class: the name of the class (e.g.
Definition Object.h:139
int getI(std::string const &attrib) const
Get the value of an attribute as an int.
Definition Object.cc:178
AstObject const * getRawPtr() const
Get the raw AST pointer.
Definition Object.h:292
AST wrapper classes and functions.
void assertOK(AstObject *rawPtr1=nullptr, AstObject *rawPtr2=nullptr)
Throw std::runtime_error if AST's state is bad.
Definition base.cc:49