Function lsst::afw::table::matchXy(SourceCatalog const&, SourceCatalog const&, double, bool)

Function Documentation

SourceMatchVector lsst::afw::table::matchXy(SourceCatalog const &cat1, SourceCatalog const &cat2, double 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, in pixels, is at most radius. If cat1 and cat2 are identical, then this call is equivalent to matchXy(cat1,radius). The match is performed in pixel space (2d cartesian).

Parameters

• [in] cat1: first catalog

• [in] cat2: second catalog

• [in] radius: match radius (pixels)

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