Coverage for python/lsst/meas/astrom/setMatchDistance.py : 20%

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# # LSST Data Management System # Copyright 2008, 2009, 2010 LSST Corporation. # # This product includes software developed by the # LSST Project (http://www.lsst.org/). # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the LSST License Statement and # the GNU General Public License along with this program. If not, # see <http://www.lsstcorp.org/LegalNotices/>. #
"""Set the distance field of the matches in a match list to the distance in radians on the sky
@warning the coord field of the source in each match must be correct
@param[in,out] matches a list of matches, an instance of lsst.afw.table.ReferenceMatch reads the coord field of the source and reference object of each match writes the distance field of each match """ if len(matches) < 1: return
sourceCoordKey = afwTable.CoordKey(matches[0].first.schema["coord"]) refObjCoordKey = afwTable.CoordKey(matches[0].second.schema["coord"]) for match in matches: sourceCoord = match.first.get(sourceCoordKey) refObjCoord = match.second.get(refObjCoordKey) match.distance = refObjCoord.separation(sourceCoord).asRadians() |