On 25 March 2012 12:19, Eric Ladner <eric.lad...@gmail.com> wrote: > Would EPSG:32230 be appropriate? (WGS 72, UTM > zone 30N) I'm dealing with things roughly in the 30.0 to 31.0N range.
EPSG:32630 is a better projected reference, since it shares the same spheroid, WGS 84, as EPSG:4326 (rather than mixing in the older WGS 72). http://spatialreference.org/ref/epsg/32630/ You should also check out converting your geometry types into geography types, which automagically calculates ST_Area (and ST_Length, and others) using tangible units of metres. http://postgis.refractions.net/docs/ch04.html#PostGIS_Geography -Mike _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
