> By the way, are the Google Mercator and WGS84 systems equivalent No they aren't. I think Google is a mercator meter projection (not good for measurement though but more or less good for presentation) and they use WGS84 datum when accepting data. I think it actually has an official SRID (could be wrong) that is EPSG:900913
and proj4 looks like this +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 [EMAIL PROTECTED] +no_defs People usually plot WGS84 longlat (4326) on Google Maps, thus the confusion. _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users ----------------------------------------- The substance of this message, including any attachments, may be confidential, legally privileged and/or exempt from disclosure pursuant to Massachusetts law. It is intended solely for the addressee. If you received this in error, please contact the sender and delete the material from any computer. _______________________________________________ postgis-users mailing list [email protected] http://postgis.refractions.net/mailman/listinfo/postgis-users
