Re: [Q] geodetic spatial functions

Posted in 2003

Ken Tanaka — Wed, 29 Oct 2003 10:43:50 -0700 — source: Usenet: comp.databases.informix

Kiyoung, I think you will have to implement it yourselves. You can let Informix Geodetic provide the ground distance and then calculate in the altitude difference. If a flat-earth approach is accurate enough, then this isn't too hard, it's harder if you need to take into account the curvature of the Earth. -Ken kiyoungy wrote: > Ken, > > Thanks for the clarification. I'm wondering, then, if > there is any other function that take the altitude > into account when computing the distance. Do we have > to implement this ourselves? > > Any comments would be appreciated. > > Thanks in advance, > Kiyoung.. > > On Tue, 28 Oct 2003, Ken Tanaka wrote: > >