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LSST Data Management Base Package
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Match.h
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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 */
24
25#ifndef LSST_AFW_TABLE_MATCH_H
26#define LSST_AFW_TABLE_MATCH_H
27
28#include <vector>
29
30#include "lsst/pex/config.h"
31#include "lsst/afw/table/fwd.h"
36#include "lsst/geom/Angle.h"
37
38namespace lsst {
39namespace afw {
40namespace table {
41
46public:
49 "Return only the closest match if more than one is found "
50 "(default: true)");
52 "Produce symmetric matches (default: true):\n"
53 "i.e. if (s1, s2, d) is reported, then so is (s2, s1, d)");
55 "Include failed matches (i.e. one 'match' is NULL) "
56 "(default: false)");
57};
58
66template <typename Record1, typename Record2>
67struct Match final {
70 double distance; // may be pixels or radians
71
72 Match() : first(), second(), distance(0.0) {}
73
76
77 template <typename R1, typename R2>
78 Match(Match<R1, R2> const &other) : first(other.first), second(other.second), distance(other.distance) {}
79};
80
81using SimpleMatch = Match<SimpleRecord, SimpleRecord>;
82using ReferenceMatch = Match<SimpleRecord, SourceRecord>;
83using SourceMatch = Match<SourceRecord, SourceRecord>;
84
88
96 SourceCatalog const &cat1,
97 SourceCatalog const &cat2,
98 double radius,
99 MatchControl const &mc =
100 MatchControl()
101);
102
109 SourceCatalog const &cat,
110 double radius,
111 MatchControl const &mc =
112 MatchControl()
113);
114
123template <typename Cat1, typename Cat2>
125 Cat1 const &cat1,
126 Cat2 const &cat2,
127 lsst::geom::Angle radius,
128 MatchControl const &mc =
129 MatchControl()
130);
131
132/*
133 * Compute all tuples (s1,s2,d) where s1 != s2, s1 and s2 both belong to `cat`,
134 * and d, the distance between s1 and s2, is at most `radius`. The
135 * match is performed in ra, dec space.
136 *
137 * This is instantiated for Simple and Source catalogs.
138 */
139template <typename Cat>
141 Cat const &cat,
142 lsst::geom::Angle radius,
143 MatchControl const &mc =
144 MatchControl()
145);
146
155template <typename Record1, typename Record2>
156BaseCatalog packMatches(std::vector<Match<Record1, Record2> > const &matches);
157
177template <typename Cat1, typename Cat2>
179 Cat1 const &cat1,
180 Cat2 const &cat2);
181} // namespace table
182} // namespace afw
183} // namespace lsst
184
185#endif // #ifndef LSST_AFW_TABLE_MATCH_H
Tag types used to declare specialized field types.
Definition misc.h:31
Pass parameters to algorithms that match list of sources.
Definition Match.h:45
bool findOnlyClosest
"Return only the closest match if more than one is found " "(default: true)" ;
Definition Match.h:50
bool symmetricMatch
"Produce symmetric matches (default: true):\n" "i.e. if (s1, s2, d) is reported, then so is (s2,...
Definition Match.h:53
bool includeMismatches
"Include failed matches (i.e. one 'match' is NULL) " "(default: false)" ;
Definition Match.h:56
A class representing an angle.
Definition Angle.h:128
#define LSST_CONTROL_FIELD(NAME, TYPE, DOC)
A preprocessor macro used to define fields in C++ "control object" structs.
Definition config.h:43
std::vector< ReferenceMatch > ReferenceMatchVector
Definition fwd.h:108
std::vector< SimpleMatch > SimpleMatchVector
Definition fwd.h:107
std::vector< Match< typename Cat1::Record, typename Cat2::Record > > unpackMatches(BaseCatalog const &matches, Cat1 const &cat1, Cat2 const &cat2)
Reconstruct a MatchVector from a BaseCatalog representation of the matches and a pair of catalogs.
Definition Match.cc:455
BaseCatalog packMatches(std::vector< Match< Record1, Record2 > > const &matches)
Return a table representation of a MatchVector that can be used to persist it.
Definition Match.cc:432
std::vector< SourceMatch > SourceMatchVector
Definition fwd.h:109
SourceMatchVector matchXy(SourceCatalog const &cat1, SourceCatalog const &cat2, double radius, MatchControl const &mc=MatchControl())
Compute all tuples (s1,s2,d) where s1 belings to cat1, s2 belongs to cat2 and d, the distance between...
Definition Match.cc:305
std::vector< Match< typename Cat1::Record, typename Cat2::Record > > matchRaDec(Cat1 const &cat1, Cat2 const &cat2, lsst::geom::Angle radius, MatchControl const &mc=MatchControl())
Compute all tuples (s1,s2,d) where s1 belings to cat1, s2 belongs to cat2 and d, the distance between...
Definition Match.cc:158
Lightweight representation of a geometric match between two records.
Definition Match.h:67
Match(Match< R1, R2 > const &other)
Definition Match.h:78
Match(std::shared_ptr< Record1 > const &r1, std::shared_ptr< Record2 > const &r2, double dist)
Definition Match.h:74
std::shared_ptr< Record2 > second
Definition Match.h:69
std::shared_ptr< Record1 > first
Definition Match.h:68