传入的clipRegion为几何对象,可以把你的polygon转换下 ,参考我的代码,
var points =[new SuperMap.Geometry.Point(0,4010338),
new SuperMap.Geometry.Point(1063524,4010338),
new SuperMap.Geometry.Point(1063524,3150322),
new SuperMap.Geometry.Point(0,3150322)
],
linearRings = new SuperMap.Geometry.LinearRing(points),
region = new SuperMap.Geometry.Polygon([linearRings]);