[Proj] Geodesic distances away from the ellipsoid
jhollingsworth at houston.oilfield.slb.com
Fri Mar 20 11:56:53 EST 2009
At the risk of asking a dumb question, do any of the geodesic
algorithms allow calculation of the geodesic distance if the path is
not on the ellipsoid? Like in an airplane or satellite whose path
could be assumed to be a constant height above the ellipsoid?
Or do you have to define an ellipsoid matching the satellite orbit
and use the normal equations on that ellipsoid? If so, how would you
define an ellipsoid for a long airplane flight?
I've poked around and nothing has jumped out at me. I assume
aero-engineers guys figured this out long ago....
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