func (this *Geos) Intersection(a, b *Geom) *Geom {
result := C.GEOSIntersection_r(this.v, a.v, b.v)
if result == nil {
return nil
}
geom := &Geom{result}
return geom
}
func cGEOSIntersection(g1 *C.GEOSGeometry, g2 *C.GEOSGeometry) *C.GEOSGeometry {
handlemu.Lock()
defer handlemu.Unlock()
return C.GEOSIntersection_r(handle, g1, g2)
}