/** * 绘制弧线 * * @return 折线对象 */ public Graphic DrawArc() { double mLat = 39.97923; double mLon = 116.357428; int lat = (int)(mLat * 1E6); int lon = (int)(mLon * 1E6); GeoPoint pt1 = new GeoPoint(lat, lon); mLat = 39.94923; mLon = 116.397428; lat = (int)(mLat * 1E6); lon = (int)(mLon * 1E6); GeoPoint pt2 = new GeoPoint(lat, lon); mLat = 39.97923; mLon = 116.437428; lat = (int)(mLat * 1E6); lon = (int)(mLon * 1E6); GeoPoint pt3 = new GeoPoint(lat, lon); Geometry arcGeometry = new Geometry(); arcGeometry.SetArc(pt1, pt3, pt2); // 设定样式 Symbol arcSymbol = new Symbol(); Symbol.Color arcColor = new Com.Baidu.Mapapi.Map.Symbol.Color(arcSymbol); arcColor.Red = 255; arcColor.Green = 0; arcColor.Blue = 225; arcColor.Alpha = 255; arcSymbol.SetLineSymbol(arcColor, 4); // 生成Graphic对象 Graphic arcGraphic = new Graphic(arcGeometry, arcSymbol); return arcGraphic; }