Custom Scenera/scenery_packs.ini
file, and then as a final step also reads the default scenery. LiveTraffic is only interested in the Earth nav data/apt.dat
files of sceneries as it contains the airport layout. Its format is documented (though the documentation wasn't up to date at the time of coding ;-))apt.dat
. Data above is the Scenery Gateway version of KATL as included in X-Plane by default.