You could union the polygons. This would not really delete any polygons, but it would result in no overlapping polygons. See the ST_Union functions for more info.
________________________________ From: [EMAIL PROTECTED] on behalf of Dylan Lorimer Sent: Wed 9/24/2008 10:50 PM To: PostGIS Users Discussion Subject: [postgis-users] Deleting an arbitrary polygon Hey PostGIS Friends, here's a problem that's stumping me, hoping you can help: I have a bunch of polygons, many of which overlap with each other. I would like to trim down the set of polygons to only those that do not overlap. I'm not particular about which I delete, so long as they overlap by a certain %. Any thoughts on how to do this? I was trying for a self join but can't figure out how to not to delete all polygons that overlap. Cheers, dylan _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
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