Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-25 Thread Curtis Olson
Hmmm, ok I suppose that is possible. I have done this with an external FAA certified flight dynamics model, but I am letting the flightgear code compute the final longitude and latitude and altitude and just passing that over. This has worked as recently as 2 weeks ago. I don't know that I've tr

Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-25 Thread John Denker
On 08/25/2008 02:45 PM, Curtis Olson wrote: > Can you further explain what the bug involves? In my experience, placing > the aircraft on the glide slope several miles out and flying the glide slope > all works fine, or am I missing something here? In my experience, the "glideslope" initializati

Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-25 Thread Curtis Olson
On Mon, Aug 25, 2008 at 3:12 AM, James Turner wrote: > > On 25 Aug 2008, at 03:25, Curtis Olson wrote: > > > Hi James, > > > > I think this was all done intentionally because it's quite common to > > want to start a flight simulator on a 5 or 7 or 10 mile approach so > > you can practice ILS landi

Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-25 Thread John Denker
On 08/24/2008 01:53 PM, James Turner wrote: > Doing this, I came across something which seems counter-intuitive to me: I agree, it's counterintuitive, to say the least. > default azimuth to offset by is the *reciprocal* runway heading. This > means to start 10nm 'out' from the threshold, one c

Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-25 Thread James Turner
On 25 Aug 2008, at 03:25, Curtis Olson wrote: > Hi James, > > I think this was all done intentionally because it's quite common to > want to start a flight simulator on a 5 or 7 or 10 mile approach so > you can practice ILS landing. > > The start-offset-m value I believe was added later to ac

Re: [Flightgear-devel] Startup position offsets (fg_init)

2008-08-24 Thread Curtis Olson
Hi James, I think this was all done intentionally because it's quite common to want to start a flight simulator on a 5 or 7 or 10 mile approach so you can practice ILS landing. The start-offset-m value I believe was added later to account for the difference in aircraft size. A starting position

[Flightgear-devel] Startup position offsets (fg_init)

2008-08-24 Thread James Turner
I'm writing some automated testing code for pieces of FG, so that I can experiment with changes to various internal bits of code with more confidence that I haven't broken anything. These aren't quite unit- tests (they test multiple areas of the code at once) and they're pretty crude, but an