怎么通过二维点坐标数组表示一个面对象,[{"y":5846399.011754164,"x":1210581.346513096},{"y":5806144.683668519,"x":1374568.1968855716}},是要这样写吗,但是这样只是一个四至范围,怎么表示具体的形状啊,
我打开了一个发布的面状数据
{"fieldNames":["SMID","SMSDRIW","SMSDRIN","SMSDRIE","SMSDRIS","SMUSERID","SMAREA","SMPERIMETER","SMGEOMETRYSIZE","ENNMCD","ENNM","C","TSXBJ","PRJID","RELRIVERID","SC"],"geometry":null,"fieldValues":["7","106.588554","40.370808","106.886185","40.197433","0","2.3153200556205308E8","71390.72927947779","536","FDK0000011","乌兰布和滞洪区","1","2DX","2DX00001","ADA00000","3"],"ID":7}
通过数据服务去看是这样的json,里边都是哪些信息包含了面状的形状啊,我想在空间分析服务中填写操作区域的代码,是不是要填一个面状对象,那我应该怎么写