Martin, I think you are right. Paul mentioned that area calculation is done by PostGIS itself.
Astrid On Thu, February 23, 2012 4:06 pm, Martin Davis wrote: > The JTS area algorithm has been tweaked slightly recently, but that's > not it - I get the same answer with JTS 1.8 (which uses the original > algorithm). > > I'm guessing PostGIS doesn't use GEOS for area, right? > > > Anyway, looks like it's fixed in the latest version. > > > On 2/23/2012 7:25 AM, Sandro Santilli wrote: > >> >> Martin, JTS area calculator changed too recently >> (the shoelace formula). Could that explain ? >> >> >> BTW, here's what I get with PostGIS 2.0.0alpha7SVN: >> 9.33616450013379 >> >> >> > _______________________________________________ > postgis-users mailing list postgis-users@postgis.refractions.net > http://postgis.refractions.net/mailman/listinfo/postgis-users > > -- Mit freundlichen Grüßen Astrid Emde ******************************************** FOSSGIS Konferenz 2012 20.-22. März 2012 in Dessau http://www.fossgis.de/konferenz/2012 ******************************************** ---------------------------------- Astrid Emde WhereGroup GmbH & Co.KG Eifelstraße 7 53119 Bonn Germany Fon: +49(0)228 90 90 38 - 19 Fax: +49(0)228 90 90 38 - 11 astrid.e...@wheregroup.com www.wheregroup.com Folgen Sie der WhereGroup auf twitter: http://twitter.com/WhereGroup_com Amtsgericht Bonn, HRA 6788 ------------------------------- Komplementärin: WhereGroup Verwaltungs GmbH vertreten durch: Olaf Knopp, Peter Stamm ------------------------------- pgp-public key: http://pgp.mit.edu:11371/pks/lookup?search=0x06DA52D72D515284 Signierte und/oder verschlüsselte Nachrichten sind sehr willkommen Signed and/or encrypted mail is highly appreciated _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
