It is an older version of PostGIS/GEOS (1.3.3 and 2.2.3) -- which version of GEOS are you using?
-Mark > Is this an older version of PostGIS/GEOS? I believe that most of these > kinds of problems were addressed in a release of GEOS last year. > > Mark Mitchell wrote: > > Anyone get an error similar to this when unioning a bunch of polygons > > with st_union? > > > > NOTICE: TopologyException: no outgoing dirEdge found > > (-149.073,61.6101,61.6101) > > ERROR: GEOS union() threw an error! > > > > I must say before I get into the details only a few of you will read > > that portion that I've used postgis for a while now (since 1.1.5) and > > it is *PHENOMENAL*. I don't want my only posts to this list in that > > time frame to be negative -- can't tell you how much > > faster/better/intuitive I've found postgis over very expensive > > commercial alternatives :-). > > > > > > My query is similar to the following: > > > > SELECT st_multi(st_union(poly)) from (select ... (a bunch of polys) ... ) a; > > > > The subselect is operating on a fairly dynamic table, and I've gone > > months without any problems (with many different sets of polygons too) > > > > I tried st_isvalid() on all polygons returned from the subselect, and > > all are valid, and are all non-null... > > If I have duplicate (or close to duplicate) polygons returned, is that > > going to potentially screw up st_union()? > > > > > > I'm running Ubuntu server (x64) 8.04 LTS, and am using the packages > > for GEOS and postgis from their universe repo: > > > > postgis 1.3.3 > > libgeos 2.2.3 > > > > (postgresql 8.3) > > > > > > Thanks for the help! > > > > -Mark > > _______________________________________________ > > postgis-users mailing list > > [email protected] > > http://postgis.refractions.net/mailman/listinfo/postgis-users > > > > > > -- > Martin Davis > Senior Technical Architect > Refractions Research, Inc. > (250) 383-3022 _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
