Function for constructing sfmesh objects from HEXEWKB - ApsaraDB RDS

This topic describes the ST_MeshFromHexEWKB function. This function constructs an sfmesh object from the HEXEWKB representation of the sfmesh object.

Syntax

sfmesh ST_MeshGeomFromHexEWKB(text hexewkb);

Parameters


Parameter	Description
hexewkb	The sfmesh object in HEXEWKB representation.

Description

This function constructs an sfmesh object from the HEXEWKB representation of the sfmesh object.

Examples

select ST_AsEWKT(ST_MeshFromHexEWKB(ST_AsHexEWKB('MESHGEOM (PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1), INDEX((0,1,2),(1,2,3)))))'::meshgeom::sfmesh)));
                                   st_asewkt
-----------------------------------------------------------------------------
{"version" : 1, "root" : 0, "meshgeoms" : ["MESHGEOM(PATCH(INDEXSURFACE(VERTEX(0 0 2,0 10 3,10 10 1,10 0 1),INDEX((0,1,2),(1,2,3)))))"], "primitives" : [{"meshgeom" : 0}], "nodes" : [{"primitive" : 0}]}