Hi, Robustness issues? You can try reducing the precision of your input (ST_SnapToGrid)
Fred On Wed, Jun 20, 2012 at 12:54 PM, Denis Rouzaud <denis.rouz...@gmail.com>wrote: > Hi all, > > I have a table of line and a table of polygons. For a given line, I would > like to get the polygon which has the biggest intersection with the line. > I tried something like this: > > CREATE OR REPLACE FUNCTION distribution.get_zone_id(**geometry) RETURNS > integer AS ' > DECLARE > inputgeom ALIAS FOR $1; > id_poly integer; > BEGIN > SELECT id INTO id_poly > FROM polygons > WHERE ST_Intersects(inputgeom,**geometry) IS TRUE > ORDER BY ST_Length(ST_Intersection(**inputgeom,geometry)) DESC > LIMIT 1; > RETURN id_poly; > END > ' LANGUAGE 'plpgsql'; > > But I have the following error: > ERROR: Error performing intersection: TopologyException: side location > conflict at 553524.92178241001 147945.03792368001 > > If anyone has any idea, tip or whatever, it is very welcome! > > Greetings, > > Denis > ______________________________**_________________ > postgis-users mailing list > postgis-users@postgis.**refractions.net<postgis-users@postgis.refractions.net> > http://postgis.refractions.**net/mailman/listinfo/postgis-**users<http://postgis.refractions.net/mailman/listinfo/postgis-users> >
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