I would like to use the new South African Hartebeesthoek94 Datum in MI.
This datum is based on the WGS84 ellipsoid, with the ITRF91 (epoch
1994.0) co-ordinates of the Hartebeesthoek Radio Astronomy Telescope
used as the origin of the system. (quote from Department of Land
Affairs, South Africa)
However I am little confused. In Appendix G: Creating Custom Datums,
it says I need to specify the shift and rotation of the 'new ellipsoid'
as compared to the WGS84 DATUM. I thought WGS84 was the ellipsoid. Are
there a datum and ellipsoid called WGS84?.
Anyway, since the Hartebeesthoek94 Datum is based on the WGS84
ellipsoid, do I need to create a new Datum or could I just use the WGS84
Datum provided with MI?
If I need to create a new Datum, am I correct in thinking that I must
ask the South African government for the shift and rotation parameters
of the Hartebeesthoek94 Datum as compared to the WGS84 Datum?
Thanks,
Michele Cote
[EMAIL PROTECTED]
----------------------------------------------------------------------
To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put
"unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
