返回一个与给定的EWKT字符串相对应的Geometry对象。
语法
geometry ST_GeomFromEWKT(text eWKT);
参数
参数名称 | 描述 |
---|---|
eWKT | EWKT字符串。 |
参数
该函数支持Circular Strings、Curves、Polyhedral surfaces、Triangles、Triangulated Irregular Network Surfaces(TIN)和3D对象。
示例
输出一个Circular Strings对象:
SELECT ST_GeomFromEWKT('CIRCULARSTRING(200000 150000 0,21000 160000 0,220000 170000 1)');
st_geomfromewkt
---------------------------------------------------------------
01080000800300000000000000006A084100000000804F024100000000000.
.00000000000000082D4400000000000880341000000000000000000000000.
.00DB0A410000000080C00441000000000000F03F
(1 row)