> No. No. No. No. There need not be a prior agreement. The 3D modeler > uses whatever origin suits. It appears in many cases that's the nose.
Yes, yes. There has to be an understanding of the difference between the frames of reference (FDM and 3D model). If we are providing the position of the nose, and the 3D model has some arbitrary origin (that's *not* the nose) then it's not gonna work. I think you understand this. The point is, SOMEONE has to know how to relate the two frames of reference - THAT's what I mean by "agreed-upon". Look, I understand 3D graphics. I wrote an application 15 years ago that took reams of simulation data and wrote an animation (frame-by-frame) to videotape using IRIX-GL (before there was OpenGL: http://www.hal-pc.org/~jsb/lambs.jpg). I've created often used shuttle 3D models for rendering under POV-Ray: http://www.hal-pc.org/~jsb/shuttlepov.html. I am trying to preclude confusion amongst the audience of 3D modelers and flight model creators. Jon _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
