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

Creates a meshgeom object from WKB.

Syntax

meshgeom ST_MeshGeomFromWKB(bytea wkb);
meshgeom ST_MeshGeomFromWKB(bytea wkb, int4 srid);

Parameters

Parameter	Description
wkb	The WKB representation of a meshgeom object.
srid	Spatial reference

Description

This function constructs a meshgeom object from the WKB representation of the meshgeom object.

Examples

select ST_AsEWKT(ST_MeshGeomFromWKB(ST_AsWKB('MESHGEOM(PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1), INDEX((0,1,2),(1,2,3)))))'::meshgeom)));
                                   st_asewkt
-----------------------------------------------------------------------------
MESHGEOM(PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1),INDEX((0,1,2),1,2,3)))))