ST_MeshFromGeom-PolarDB(PolarDB)-阿里云帮助中心

Constructs an sfmesh object from a geometry object.

Syntax

sfmesh ST_MeshFromGeom(geometry geom);

Parameters

Parameter	Type	Description
`geom`	geometry	The geometry object to convert.

Description

ST_MeshFromGeom converts a geometry object into an sfmesh object. It is equivalent to the explicit cast geometry::sfmesh.

Example

select ST_AsEWKT(ST_MeshFromGeom('POLYGON((0 0 1, 10 0 2, 10 10 3, 0 0 1))'::geometry));

Output:

{"version" : 1, "root" : 0, "meshgeoms" : ["MESHGEOM(PATCH(POLYGON((0 0 1,10 0 2,10 10 3,0 0 1))))"], "primitives" : [{"meshgeom" : 0}], "nodes" : [{"primitive" : 0}]}