--- Martin Dressler <[EMAIL PROTECTED]> wrote: > On Sat 23. February 2002 01:06, you wrote: > > The flightgear side really only knows the current > ground elevation for > > a specific lon/lat. FlightGear has no way to know > the dimensions of a > > specific aircraft or the relative placement of the > gear. It would > > seem like the best thing FlightGear can do is > provide the elevation of > > the ground for the starting lon/lat, and then it > should be up to the > > FDM to do the rest. > > BTW How you can get altitude of specific lat,lon > position, please? > > What about scheme, when FDM or other SubSystem store > lat,lon position > structures on some heap and after frame render get > it back with filled > altitude.
The scheme used to pass the data back and forth is not the problem. It's farther upstream than that. > > > The FDM passes back the location of the aircraft's > CG, and this > > combined with knowledge of the aircraft > orientation and pilot view > > offset relative to the CG allows FlightGear to > properly render the > > scene. > > > > I don't know the details of how it works know, but > it seems like the > > FDM would need to find a suitable starting point > for the CG given the > > information FlightGear can provide (which is the > ground elevation.) > > > > This is a tricky area though so if there's > something I'm missing feel > > free to point it out. :-) > > > > Curt. > > Madr > > -- > Martin Dressler > > e-mail: [EMAIL PROTECTED] > http://www.musicabona.com/ > > _______________________________________________ > Flightgear-devel mailing list > [EMAIL PROTECTED] > http://mail.flightgear.org/mailman/listinfo/flightgear-devel > > __________________________________________________ Do You Yahoo!? Yahoo! Sports - Coverage of the 2002 Olympic Games http://sports.yahoo.com _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
