> Hmmm... VRP stay at 0,0,0 - you may see it at an2.xml. 3D model > shifted (by > 6.2 m by X ) to this point in an2-model.xml. Imho, both points is right, > cause: > > If there is mismatch between ref points, rotation of model will > wrong, you are > right. I spend many times for tune center of rotation. Main > reason was wrong > position of long parts, outstanding from fuselage, for example, gears. If > refs point was wrong, gear was sink under ground, when craft > begin rotation.
For a JSBSim model, the structural coordinate frame can be defined any way the user wants to do it. However, because of confusion that can (and has) arisen, the best way to do this is to have the origin of the structural frame be at the nose of the aircraft (0,0,0). The VRP is by convention defined as the nose of the aircraft, too, so the VRP is then 0,0,0. If the 3D model defines the nose as 0,0,0, then everyone is happy. Jon ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Flightgear-devel mailing list Flightgear-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/flightgear-devel
