Template Function lsst::afw::table::matchRaDec(Cat const&, lsst::geom::Angle, bool)

Function Documentation

template<typename Cat>
std::vector<Match<typename Cat::Record, typename Cat::Record>> lsst::afw::table::matchRaDec(Cat const &cat, lsst::geom::Angle radius, bool symmetric)

Compute all tuples (s1,s2,d) where s1 != s2, s1 and s2 both belong to cat, and d, the distance between s1 and s2, is at most radius. The match is performed in ra, dec space.

This is instantiated for Simple and Source catalogs.

Parameters

• [in] cat: the catalog to self-match

• [in] radius: match radius

• [in] symmetric: if cat to true symmetric matches are produced: i.e. if (s1, s2, d) is reported, then so is (s2, s1, d).