Hello, Following the link on Aviation Formulary http://www.best.com/~williams/avform.htm for Javascript calculator with elliptical earth models you end up here http://users.netonecom.net/~rburtch/geodesy/datums.html Strange way to get to all the info......... List of links to finding out "how little we know" on coordinates, datum and transformations. WGS84, Australian Surveying and Land Information Group, Finnish National Grid, Glonass SGS85, NGS just to name a few. Trey Pattillo [EMAIL PROTECTED] http://www.wap3.com ---------------------------------------------------------------------- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
