Jon S Berndt said: > On Tue, 06 Apr 2004 18:58:03 +0200 > Erik Hofman <[EMAIL PROTECTED]> wrote: > > >JSBSim does basically the same (although there is a name allocated > >for it), but the real question is: Is left most defined 0, or is > >right mos define d0, or is it something completely different > >(numbered in order of appearance)? > > > >Erik > > Here is an example of our gear definition: > > AC_GEAR NOSE -6.8 .0 -20.0 1800 600 .5 .8 .02 STEERABLE NONE 10 FIXED > AC_GEAR L_MAIN 58.2 -43.0 -17.9 5400 1600 .5 .8 .02 CASTERED LEFT 0 > FIXED > AC_GEAR R_MAIN 58.2 43.0 -17.9 5400 1600 .5 .8 .02 CASTERED RIGHT 0 > FIXED > AC_GEAR TAIL_SKID 188.0 .0 8.0 20000 1000 .2 .2 .2 FIXED NONE 0 FIXED > AC_GEAR LEFT_TIP 43.2 -214.8 59.4 10000 2000 .2 .2 .2 FIXED NONE 0 > FIXED > AC_GEAR RIGHT_TIP 43.2 214.8 59.4 10000 2000 .2 .2 .2 FIXED NONE 0 > FIXED > > See, we have contact points in addition to actual wheeled bogeys > defined. The X, Y, Z coords of the contact point for each gear us > there, as are the static and dynamic friction coefficients, rolling > resistance, steering type, brake group membership, maximum steering > angle, and retreactability. > > They are not now expected to be in any particular order, nor are they > given specific names. The layout is somewhat free form. A questions > is, how do you set up the gear model to support animation when you may > want to model things as varied as a 747, a C-172, a P-51D, a Harrier, > etc.? > > Perhaps there should be another identifier that relates a specific > gear instance with an associated 3D model gear item? Perhaps there > ought to be an ordering standard? Suggestions? >
That looks easy enough. If there aren't any indications otherwise, the order they are listed in the config file would be fine. Maybe adding the text description in the gear/gear[n] path (the NOSE, L_MAIN, R_MAIN, etc) might help someone trying to figure out which was which. But of course they could just look at the config file and count (e.g. R_MAIN must be gear[2]). Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
