func (this *Geos) IsSimple(geom *Geom) bool {
if C.GEOSisSimple_r(this.v, geom.v) == 1 {
return true
}
return false
}
func cGEOSisSimple(g1 *C.GEOSGeometry) C.char {
handlemu.Lock()
defer handlemu.Unlock()
return C.GEOSisSimple_r(handle, g1)
}