arcgis 地图上添加圆形

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    import MapView from "@arcgis/core/views/MapView";
	import Circle from "@arcgis/core/geometry/Circle";
    import Graphic from "@arcgis/core/Graphic";
    
    //创建地图视图
	let mapView= new MapView({ 
   
	  map: myMap,  // References a Map instance
	  container: "viewDiv"  // References the ID of a DOM element
	});
	
   // 创建圆形
   const circleGeometry = new Circle({ 
   
    center: [114.00543122401105, 22.54169300304915], // 圆心
     // numberOfPoints: 60, // 圆返回点个数
     radius: 0.5, // 半径大小
     radiusUnit: 'kilometers' // 半径单位
   })
   
   // graphics 图形画布 添加Graphic图形
   mapView.graphics.add(new Graphic({ 
   
     geometry: circleGeometry,
     symbol: { 
   
       type: 'simple-fill',
       color: [0, 119, 237, 0.15],
       outline: { 
    // autocasts as new SimpleLineSymbol() 外边框
         color: [16, 127, 236],
         width: 1,
         style: 'dash' // 虚线
       }
     }
   }))