On Sat, 10 Jan 2004 07:20:07 -0800, Andy Ross <[EMAIL PROTECTED]> wrote in message <[EMAIL PROTECTED]>:
> Jon S. Berndt wrote: > > The rigid body response to a force and torque can be in roll, pitch, > > yaw, and/or X, Y, Z translation. That's six DoF. How does the > > seventh degree come into play? > > I wasn't clear: the rigid body response function takes a 6DOF space > (force + torque) to another 6DOF space (position + orientation). But > the space *of* those functions (that is: how many unique rigid bodies > are there?) has 7 degrees of freedom. There is a mass, and a 3x3 > inertia tensor. ..and this assumes a rigid "glass hard" body, or can the body now flex on loads? -- ..med vennlig hilsen = with Kind Regards from Arnt... ;-) ...with a number of polar bear hunters in his ancestry... Scenarios always come in sets of three: best case, worst case, and just in case. _______________________________________________ Flightgear-devel mailing list [EMAIL PROTECTED] http://mail.flightgear.org/mailman/listinfo/flightgear-devel
