callback({"clipRegion":"{\"center\":{\"x\":29.169387,\"y\":9.82528325},\"parts\":[5],\"style\":null,\"prjCoordSys\":null,\"id\":0,\"type\":\"REGION\",\"partTopo\":null,\"points\":[{\"x\":28.3824545,\"y\":9.02476975},{\"x\":29.9563195,\"y\":9.02476975},{\"x\":29.9563195,\"y\":10.62579675},{\"x\":28.3824545,\"y\":10.62579675},{\"x\":28.3824545,\"y\":9.02476975}]}","datasourceName":"南湖景区矢量图"},0)