SuperMap.Geometry.point数组
SuperMap.Geometry.LineaRing闭合曲线
SuperMap.Geometry.Plygon多边形
SuperMap.Feature.Vector
SuperMap.Layer.Vector

var points = [new SuperMap.Geometry.Point(4933.319287022352, -3337.3849141502124),
new SuperMap.Geometry.Point(4960.9674060199022, -3349.3316322355736),
new SuperMap.Geometry.Point(5006.0235999418364, -3358.8890067038628),
new SuperMap.Geometry.Point(5075.3145648369318, -3378.0037556404409),
new SuperMap.Geometry.Point(5305.19551436013, -3376.9669111768926)],
linearRing = new SuperMap.Geometry.LinearRing(points);
例如以上，用点数组new一个linearRing，但是你要保证你的点数组是可以构成一个圆