PolygonShape

    func createPolygonStyleSet() {
        let view = mapController?.getView("mapview") as! KakaoMap
        let manager = view.getShapeManager()

        // 레벨별 스타일을 생성.
        let perLevelStyle1 = PerLevelPolygonStyle(color: UIColor(red: 0.9, green: 0.7, blue: 0.3, alpha: 1.0), strokeWidth: 1, strokeColor: UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0), level: 0)
        
        let perLevelStyle2 = PerLevelPolygonStyle(color: UIColor(red: 0.9, green: 0.2, blue: 0.6, alpha: 1.0), strokeWidth: 1, strokeColor: UIColor(red: 0.0, green: 0.0, blue: 0.0, alpha: 1.0), level: 0)
        
        // 각 레벨별 스타일로 구성된 2개의 Polygon Style
        let shapeStyle1 = PolygonStyle(styles: [perLevelStyle1])
        let shapeStyle2 = PolygonStyle(styles: [perLevelStyle2])
        
        // PolygonStyle을 PolygonStyleSet에 추가.
        let shapeStyleSet = PolygonStyleSet(styleSetID: "shapeStyleSet", styles: [shapeStyle1, shapeStyle2])
        manager.addPolygonStyleSet(shapeStyleSet)
    }

	// PolygonShape 생성 옵션
        let options = PolygonShapeOptions(shapePointType: .relative, shapeID: "CircleShape", styleID: "shapeStyleSet", zOrder: 1)
        
        let points = Polygon.getCirclePoints(radius: 50, cw: true)
        let polygon = Polygon(exteriorRing: points, hole: nil)
        polygon.styleIndex = 0
        options.polygons.append(polygon)
        
        // PolygonShape를 구성하는 Polygon은 이 basePosition을 기준점으로 지정하여 실수의 offset좌표로 구성된다.
        options.basePosition = MapPoint(longitude: 126.978365, latitude: 37.566691) 
        
        let points2 = points.map({ (p: MapPoint) -> MapPoint in
            var coord = p.wgsCoord
            coord.longitude = coord.longitude + 0.000898
            return MapPoint(longitude: coord.longitude, latitude: coord.latitude)
        })
        
        let polygon2 = Polygon(exteriorRing: points2, hole: nil)
        polygon2.styleIndex = 1
        options.polygons.append(polygon2)
        
         // shapeLayer에 option을 이용하여 PolygonShape를 생성한다.
        let shape = layer?.addPolygonShape(options)
        shape?.show()

    @objc func onUpdatePolygon() {
        let mapView: KakaoMap = mapController?.getView("mapview") as! KakaoMap
        let manager = mapView.getShapeManager()
        let layer = manager.getShapeLayer(layerID: "polygons")
        let polygonShape = layer?.getMapPolygonShape(shapeID: "polygonShape")
        
        let offset = Double.random(in: 0...0.004491)
        let center = MapPoint(longitude: 127.038575 + offset, latitude: 37.499699 + offset)
        let polygon = MapPolygon(exteriorRing: Primitives.getCirclePoints(radius: Float(arc4random_uniform(500)), cw: true, center: center), hole: nil, styleIndex: UInt(arc4random_uniform(5)))
        
        _polygons?.append(polygon)
        
        // 기존에 존재하는 polygonShape의 style과 data를 변경한다.
        polygonShape?.changeStyleAndData(styleID: "polygonStyleSet", polygons: _polygons!)
    }