Template Function lsst::afw::table::matchRaDec(Cat1 const&, Cat2 const&, lsst::geom::Angle, bool)

Function Documentation

template<typename Cat1, typename Cat2>
std::vector<Match<typename Cat1::Record, typename Cat2::Record>> lsst::afw::table::matchRaDec(Cat1 const &cat1, Cat2 const &cat2, lsst::geom::Angle radius, bool closest)

Compute all tuples (s1,s2,d) where s1 belings to cat1, s2 belongs to cat2 and d, the distance between s1 and s2, is at most radius. If cat1 and cat2 are identical, then this call is equivalent to matchRaDec(cat1,radius). The match is performed in ra, dec space.

This is instantiated for Simple-Simple, Simple-Source, and Source-Source catalog combinations.

Parameters

• [in] cat1: first catalog

• [in] cat2: second catalog

• [in] radius: match radius

• [in] closest: if true then just return the closest match