Navigation formulas
- From: "Default User" <defaultuserbr@xxxxxxxxx>
- Date: 14 Sep 2005 19:24:31 GMT
I'm not sure if this is the best newsgroup for this question or not,
but a Google Groups search didn't turn up any likelier candidates
(except for a defunct aviation group).
Anyway, I'm doing some stuff that has aircraft flying routes based on
waypoints. I have the basic formulas for calculating distances and
headings based on latitude and longitude. What I'm interested in at
this point are some for more sophisticated maneuvering at the
transition points of the route legs.
For instance, let's say you have three waypoints: A, B, and C. When you
arrive at B from A there will be a vector from B to C. However, the
aircraft can't turn instantaneously. So it either does a flyover of the
waypoint or some sort of turn short of the waypoint.
In the first case, there needs to be a way to get back onto the path
from B to C. Calculating headings from the current position to C will
get you there, but not via the direct path from B to C.
If anyone knows of some handy web sources for this, that would be
great. My attempts at Google search with seemingly relevant keywords
didn't turn anything up. I'm working in C++, so if expressed in C or
C++ code that would be extra good, but not necessary of course.
Naturally, if anyone has such formulas and wants to discuss them here
that's fine as well, as would redirects to a more appropriate newsgroup
should there be one.
Brian
.
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