On Fri, May 1, 2009 at 4:52 PM, Francois Van Der Biest <francois.vanderbi...@camptocamp.com> wrote: > Hi list, > > osm2pgsql --help says: > -m|--merc: Store data in proper spherical mercator (default) > -M|--oldmerc: Store data in the legacy OSM mercator format > > I'm wondering what's the difference between those two srs. > Which one is epsg:900913 (aka epsg:3785 > http://www.spatialreference.org/ref/epsg/3785/) ? > > My experience (importing an osm dump into postgis, then exporting to > shapefiles) would let me think that the "legacy OSM mercator format" > is epsg:3785. So, what's the other one ?
I'm moderately sure that --oldmerc was when someone in OSM got the maths slightly wrong. Use -m for (as it says) proper spherical mercator aka epsg:900913 Cheers, Andy _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
