I notice with some self-intersecting polygons, st_buffer() with distance of 0 can make polygons disappear.
-Bob On Nov 26, 2011 2:26 AM, "Sandro Santilli" <[email protected]> wrote: > On Sat, Nov 26, 2011 at 09:35:47AM +0200, ahmet temiz wrote: > > > Could you give me an idea to solve this problem ? > > > > "Ring Self-intersection at or near point 39.0002 37.8181" > > Try passing the geoms under st_buffer() with a distance of 0. > Alternatively, if you can, use ST_MakeValid() found in PostGIS-2.0. > > If you feel adventurous you could build a standard topology and > clean from there. See: > http://strk.keybit.net/blog/2011/11/21/topology-cleaning-with-postgis/ > > --strk; > > () Free GIS & Flash consultant/developer > /\ http://strk.keybit.net/services.html > _______________________________________________ > postgis-users mailing list > [email protected] > http://postgis.refractions.net/mailman/listinfo/postgis-users >
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