Hi, OSGeo-discussion list,
I just wanted to forward this message from Brendan, hopefully someone who
knows enough about projections can help with this, so to decide on which
coordinates system to use, and how to handle coordinates shifting.
Thanks,
Sam
-- Forwarded message --
Sam,
I suppose a good way to minimize datum-related systematic errors in
geographic data would be to:
- specify your storage datum (e.g. WGS84(G1150) )
(http://www.geod.nrcan.gc.ca/faq_e.php#23)
- give approved methods of transforming data from various datums to
your storage datum.