///
/// Returns a polygon which is the union of this polygon and *r.*
///
/// Set operations on polygons will treat the polygons as
/// areas. Non-closed polygons will be treated as implicitly closed.
///
/// **See also:** intersected()
/// subtracted()
Returns a polygon which is the union of this polygon and *r.
Set operations on polygons will treat the polygons as
areas. Non-closed polygons will be treated as implicitly closed.

See also:** intersected()
subtracted()
Returns a polygon which is the union of this polygon and * r . Set operations on polygons will treat the polygons as areas . Non - closed polygons will be treated as implicitly closed . See also : ** intersected () subtracted ()
pub fn united<P: PolygonFTrait<'a>>(&self, r: &P) -> PolygonF {
        let (obj_r_1, _funcs) = r.get_polygon_f_obj_funcs();
        let (obj_data, funcs) = self.get_polygon_f_obj_funcs();
        unsafe {
            let ret_val = ((*funcs).united)(obj_data, obj_r_1);
            let t = ret_val;
            let ret_val;
            if t.host_data != ::std::ptr::null() {
                ret_val = PolygonF::new_from_rc(t);
            } else {
                ret_val = PolygonF::new_from_owned(t);
            }
            ret_val
        }
    }
pub fn united < P : PolygonFTrait < ' a > > ( & self , r : & P ) -> PolygonF { let ( obj_r_1 , _funcs ) = r . get_polygon_f_obj_funcs ( ) ; let ( obj_data , funcs ) = self . get_polygon_f_obj_funcs ( ) ; unsafe { let ret_val = ( ( * funcs ) . united ) ( obj_data , obj_r_1 ) ; let t = ret_val ; let ret_val ; if t . host_data != :: std :: ptr :: null ( ) { ret_val = PolygonF :: new_from_rc ( t ) ; } else { ret_val = PolygonF :: new_from_owned ( t ) ; } ret_val } }
Returns a polygon which is the union of this polygon and *r.
Set operations on polygons will treat the polygons as
areas.
Returns a polygon which is the union of this polygon and * r . Set operations on polygons will treat the polygons as areas .
&self
r
&P