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LSST Data Management Base Package
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makeMatchStatistics.cc
Go to the documentation of this file.
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
27
28namespace lsst {
29namespace meas {
30namespace astrom {
31
32template <typename MatchT>
34 afw::math::StatisticsControl const& sctrl) {
35 if (matchList.empty()) {
36 throw LSST_EXCEPT(pexExcept::RuntimeError, "matchList is empty");
37 }
39 val.reserve(matchList.size());
40
41 for (auto const& match : matchList) {
42 val.push_back(match.distance);
43 }
44 return afw::math::makeStatistics(val, flags, sctrl);
45}
46
47template <typename MatchT>
49 std::vector<MatchT> const& matchList, int const flags,
50 afw::math::StatisticsControl const& sctrl) {
51 if (matchList.empty()) {
52 throw LSST_EXCEPT(pexExcept::RuntimeError, "matchList is empty");
53 }
55 val.reserve(matchList.size());
56
57 for (auto const& match : matchList) {
58 auto refPtr = match.first;
59 auto srcPtr = match.second;
60 auto srcX = srcPtr->getX();
61 auto srcY = srcPtr->getY();
62 auto refPos = wcs.skyToPixel(refPtr->getCoord());
63 auto refX = refPos[0];
64 auto refY = refPos[1];
65 val.push_back(::hypot(srcX - refX, srcY - refY));
66 }
67 return afw::math::makeStatistics(val, flags, sctrl);
68}
69
70template <typename MatchT>
72 std::vector<MatchT> const& matchList, int const flags,
73 afw::math::StatisticsControl const& sctrl) {
74 if (matchList.empty()) {
75 throw LSST_EXCEPT(pexExcept::RuntimeError, "matchList is empty");
76 }
78 val.reserve(matchList.size());
79
80 for (auto const& match : matchList) {
81 auto refPtr = match.first;
82 auto srcPtr = match.second;
83 auto refCoord = refPtr->getCoord();
84 auto srcCoord = wcs.pixelToSky(srcPtr->getCentroid());
85 auto angSep = refCoord.separation(srcCoord);
86 val.push_back(angSep.asRadians());
87 }
88 return afw::math::makeStatistics(val, flags, sctrl);
89}
90
91#define INSTANTIATE(MATCH) \
92 template afw::math::Statistics makeMatchStatistics<MATCH>(std::vector<MATCH> const& matchList, \
93 int const flags, \
94 afw::math::StatisticsControl const& sctrl); \
95 template afw::math::Statistics makeMatchStatisticsInPixels<MATCH>( \
96 afw::geom::SkyWcs const& wcs, std::vector<MATCH> const& matchList, int const flags, \
97 afw::math::StatisticsControl const& sctrl); \
98 template afw::math::Statistics makeMatchStatisticsInRadians<MATCH>( \
99 afw::geom::SkyWcs const& wcs, std::vector<MATCH> const& matchList, int const flags, \
100 afw::math::StatisticsControl const& sctrl);
101
104
105} // namespace astrom
106} // namespace meas
107} // namespace lsst
#define INSTANTIATE(FROMSYS, TOSYS)
Definition Detector.cc:509
#define LSST_EXCEPT(type,...)
Create an exception with a given type.
Definition Exception.h:48
A 2-dimensional celestial WCS that transform pixels to ICRS RA/Dec, using the LSST standard for pixel...
Definition SkyWcs.h:117
Pass parameters to a Statistics object.
Definition Statistics.h:83
A class to evaluate image statistics.
Definition Statistics.h:222
T empty(T... args)
Statistics makeStatistics(lsst::afw::image::Image< Pixel > const &img, lsst::afw::image::Mask< image::MaskPixel > const &msk, int const flags, StatisticsControl const &sctrl=StatisticsControl())
Handle a watered-down front-end to the constructor (no variance)
Definition Statistics.h:361
Match< SourceRecord, SourceRecord > SourceMatch
Definition fwd.h:105
Match< SimpleRecord, SourceRecord > ReferenceMatch
Definition fwd.h:104
afw::math::Statistics makeMatchStatisticsInRadians(afw::geom::SkyWcs const &wcs, std::vector< MatchT > const &matchList, int const flags, afw::math::StatisticsControl const &sctrl=afw::math::StatisticsControl())
Compute statistics of on-sky radial separation for a match list, in radians.
afw::math::Statistics makeMatchStatistics(std::vector< MatchT > const &matchList, int const flags, afw::math::StatisticsControl const &sctrl=afw::math::StatisticsControl())
Compute statistics of the distance field of a match list.
afw::math::Statistics makeMatchStatisticsInPixels(afw::geom::SkyWcs const &wcs, std::vector< MatchT > const &matchList, int const flags, afw::math::StatisticsControl const &sctrl=afw::math::StatisticsControl())
Compute statistics of on-detector radial separation for a match list, in pixels.
T push_back(T... args)
T reserve(T... args)
T size(T... args)