Returns true if the point given is on the right hand side of the polyline,
using a naive definition of "right-hand-sideness" where the point is on
the RHS of the polyline iff the point is on the RHS of the line segment in
the polyline which it is closest to.
Returns true if the point given is on the right hand side of the polyline, using a naive definition of "right-hand-sideness" where the point is on the RHS of the polyline iff the point is on the RHS of the line segment in the polyline which it is closest to.
The polyline must have at least 2 vertices.