Name
ST_GetFaceGeometry — 返回给定拓扑中具有指定面ID的多边形。
Synopsis
geometry ST_GetFaceGeometry(varchar atopology, integer aface);
描述
返回给定拓扑中具有指定面ID的多边形。从构成面的边构建多边形。
可用性：1.1
This method implements the SQL/MM specification. SQL-MM 3 Topo-Geo和Topo-Net 3：例程详细信息：X.3.16
示例
-- Returns the wkt of the polygon added with AddFace
SELECT ST_AsText(topology.ST_GetFaceGeometry('ma_topo', 1)) As facegeomwkt;
-- result --
facegeomwkt
--------------------------------------------------------------------------------
POLYGON((234776.9 899563.7,234896.5 899456.7,234914 899436.4,234946.6 899356.9,
234872.5 899328.7,234891 899285.4,234992.5 899145,234890.6 899069,
234755.2 899255.4,234612.7 899379.4,234776.9 899563.7))