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

Function: st_bdpolyfromtext

Schema

public

Owner

albenard

Descriptions

args: WKT, srid - Construct a Polygon given an arbitrary collection of closed linestrings as a MultiLineString Well-Known text representation.

Options

Definition

CREATE OR REPLACE FUNCTION public.st_bdpolyfromtext (
 text,
 integer
)
RETURNS public.geometry AS
$span$
DECLARE
geomtext alias for $1;
srid alias for $2;
mline geometry;
geom geometry;
BEGIN
mline := public.ST_MultiLineStringFromText(geomtext, srid);

IF mline IS NULL
THEN
RAISE EXCEPTION 'Input is not a MultiLinestring';
END IF;

geom := public.ST_BuildArea(mline);

IF GeometryType(geom) != 'POLYGON'
THEN
RAISE EXCEPTION 'Input returns more then a single polygon, try using BdMPolyFromText instead';
END IF;

RETURN geom;
END;
$span$
LANGUAGE 'plpgsql'
IMMUTABLE
RETURNS NULL ON NULL INPUT
SECURITY INVOKER
COST 100;

COMMENT ON FUNCTION public.st_bdpolyfromtext(text, integer)
IS 'args: WKT, srid - Construct a Polygon given an arbitrary collection of closed linestrings as a MultiLineString Well-Known text representation.';

This file was generated with SQL Manager for PostgreSQL (www.pgsqlmanager.com) at 26/02/2014 11:51