Hello!

I'm a hobby programmer and work on a flight simulation project as well 
and would like to ask probably a trivial question:
Lets the global origin of the coordinate system be at 0deg lat and 0deg 
lon. While moving an aircraft within 100km off the global origin, the 
movement and camera rotation / position work smooth. When moving further 
away the transformations start to jitter increasingly, transformations 
are less exact. The problem is most probably rooted  in rounding error. 
Solution for this problem is the switch to the local coordinate system.
My question is: how the local/global coordinates are managed in FlightGear?
Where in the code i could reivew your solution?
How do you solve the momentum of entering critical distances of the 
local coordinate system, ergo moving local coordinate system to get the 
aircraft back again within the limits of the local coordinate system?


Kind Regards and thanks in advance
Paul

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