I use fgfs to practice instrument approaches, starting with
the aircraft positioned just outside the IAF. However, in
0.9.2, the --offset-distance doesn't seem to work.
In src/Main/fg_init.cxx, near line 1035, just before the call to
ok = fgSetPosFromAirportIDandHdg( apt, hdg );
there is
if (fgGetDouble("/sim/presets/altitude-ft") <= 0 &&
fgGetDouble("/sim/presets/offset-distance") == 0)
which doesn't seem correct. However, the following does cause
the routine to get called properly:
if ( (fabs(fgGetDouble("/sim/presets/altitude-ft" )) > SG_EPSILON ) &&
(fabs(fgGetDouble("/sim/presets/offset-distance")) > SG_EPSILON ) )
I don't know if it is the right way to do it, but it works
for me.
Wendell
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