[ODE] Is it possible to Scale a given Inertia-Matrix?

GARY VANSICKLE g.r.vansickle at worldnet.att.net
Tue Jun 15 22:24:34 MST 2004


> -----Original Message-----
> From: ode-bounces at q12.org [mailto:ode-bounces at q12.org] On Behalf Of Chris
> Duwenkamp
> Sent: Tuesday, June 15, 2004 12:08 PM
> To: ode at q12.org
> Subject: [ODE] Is it possible to Scale a given Inertia-Matrix?
> 
> Hallo!
> 
> Is there any possibility to scale a given Inertia-Matrix?
> 
> For example : you have a 1x1x1 Inertia for a Box and want it to scal 2x3x2
> so that you have a 2x3x3 box..
> 
> (ok, for boxes it is trivial, because you could do it with scaling the
> Parameters for dMassSetBox(..) but how to do it for other Primitives?)
> 

The inertia tensor integral has distance-from-axis-of-rotation as a squared
factor, so I don't think scaling works in general.  My calc gets rustier by
the year though so I could be wrong....

-- 
Gary R. Van Sickle




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