point_in_polygon/2

point_in_polygon(point,polygon) -(i,i)

This predicate succeeds if the point (arg.1) is inside the polygon (arg.2).

This predicate is currently being tested and improved, after being implemented in Pure Assembly Language. It is ommitted in the very first version of G.I.S. Prolog (version 1.00), released in February 2005.