pggeodb.nancy.inra.fr/db_cefs - db_cefs on pggeodb.nancy.inra.fr

Function: polygonize

Schema

topology

Owner

postgres

Descriptions

args: toponame - Find and register all faces defined by topology edges

Options

Definition

CREATE OR REPLACE FUNCTION topology.polygonize (
 toponame varchar
)
RETURNS text AS
$span$
DECLARE
 sql text;
 rec RECORD;
 faces int;
BEGIN

 sql := 'SELECT (st_dump(st_polygonize(geom))).geom from '
        || quote_ident(toponame) || '.edge_data';

 faces = 0;
 FOR rec in EXECUTE sql LOOP
   BEGIN
     PERFORM topology.AddFace(toponame, rec.geom);
     faces = faces + 1;
   EXCEPTION
     WHEN OTHERS THEN
       RAISE WARNING 'Error registering face % (%)', rec.geom, SQLERRM;
   END;
 END LOOP;
 RETURN faces || ' faces registered';
END
$span$
LANGUAGE 'plpgsql'
VOLATILE
CALLED ON NULL INPUT
SECURITY INVOKER
COST 100;

COMMENT ON FUNCTION topology.polygonize(toponame varchar)
IS 'args: toponame - Find and register all faces defined by topology edges';

This file was generated with SQL Manager for PostgreSQL (www.pgsqlmanager.com) at 13/03/2014 13:23