David Megginson <[EMAIL PROTECTED]> said: > Jim Wilson wrote: > > > Yes it is. I'm probably being really dense, but I can't think of a reason why > > it would be important to know what the origin is in fdm coordinates. So long > > as position is reported to fgfs at the nose, we should be fine. > > Assuming that the model also has its origin at the nose. If we can tell the > FDM to report a different point, then the model can have its origin anywhere. >
The *.ac file doesn't actually need to be changed in any case. You can always use the offsets to move the 3D model origin to the nose. IIRC these are the offset properties that were originally used to place MSFS models that we couldn't edit. That dimmension would be easy to figure out because it would be the distance from the 3D model's origin to the location of the nose. For those who don't know what I'm refering to see: http://www.flightgear.org/Docs/fgfs-model-howto.html#repositioning In a sense what I've described here is analogous what you suggest, it's just the FDM doesn't actually need to know it (besides what ever you report would have to refer to some sort of static location). If we stick to having the only thing connecting the 3D to the FDM those /orientation and /position properties, then we'll be in better shape for multi-instance FDMs. Best, Jim _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
