-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
--
-- PostGIS - Spatial Types for PostgreSQL
-- http://postgis.net
--
-- Copyright (C) 2011 Andrea Peri <aperi2007@gmail.com>
--
-- This is free software; you can redistribute and/or modify it under
-- the terms of the GNU General Public Licence. See the COPYING file.
--
-- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

-- {
--
-- Andrea Peri (19 Jan 2011) creation
-- Andrea Peri (14 Feb 2011) minor issues
--
-- getnodebypoint(atopology, point, tolerance)
--
-- Retrieve a Node ID given a POINT and a tolerance
-- tolerance = 0 mean exactly intersection
--
-- Returns the integer ID if there is a Node on the Point.
--
-- If there isn't any node in the Point, GetNodeByPoint return 0.
--
-- if near the point there are two or more nodes it throw an exception.
--
CREATE OR REPLACE FUNCTION topology.GetNodeByPoint(atopology varchar, apoint geometry, tol1 float8)
	RETURNS int AS
	'MODULE_PATHNAME', 'GetNodeByPoint'
	LANGUAGE 'c' STABLE STRICT;
--} GetNodeByPoint

