> I really don't understand the requirement as to having the origin > at the same location for all the FDMs.
That's not necessarily true. The requirement would be that the FDMs use the coordinate system that they need to use, but publish a known point on the aircraft in its (the FDMs) frame. Everyone is aware of a fixed point on the aircraft. This common point on the aircraft should be readily visible and easily distinguishable. The center of some "bounding box" doesn't fit that bill. "It's as obvious as the tip of your nose" (or something like that) is a phrase I think gives a strong suggestion as to what that point should be. It's unambiguous. > why don't we just agree on a name to use for the origin and require > that its location be specified in the config file. This is exactly what I've been pushing for in that last day or two. > FWIW it makes the most sense to me to have the origin at the center of > the bounding sphere of the model I'm not arguing that this doesn't make sense, BTW, just that it is ambiguous (to me - I don't have the slightest idea of what the bounding box is for an aircraft - though I am familiar with bounding boxes). Another important specification to require is the coordinate frame orientation, as I have outlined previously (yesterday). Jon _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
