On Fri, 2009-05-01 at 17:52 +0200, Francois Van Der Biest 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 ?
The other one should be epsg:3395 $ ./osm2pgsql -vh ... Supported projections: Latlong (-l) SRS: 4326 (none) WGS84 Mercator ( ) SRS: 3395 +proj=merc +datum=WGS84 +k=1.0 +units=m +over +no_defs Spherical Mercator (-m) SRS:900913 +proj=merc +a=6378137 +b=6378137 +lat_ts=0.0 +lon_0=0.0 +x_0=0.0 +y_0=0 +k=1.0 +units=m +nadgri...@null +no_defs +over The seconds line of the help should show (-M) for the legacy projection. I've just fixed it in SVN. Jon _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk
