I'm working on prototyping an app that needs the ground track of the aircraft. I've had a lot of luck getting FlightGear output over UDP thanks to some helpful posts here. In the properties tree, I found an entry for /orientation[0]/heading-deg, but I can't find something for ground track. Is that heading the direction the nose is pointing or the path the aircraft body is traversing?
I'm currently trying to use /velocities[0]/speed-north-fps and /velocities[0]/speed-east-fps and arctan to calculate the ground track. Is this a valid approach? Is there a more direct way to do this?
Thanks,
Louis