[ODE] Collision impact force

[Bob Dowland]

> It's sort of a crude measurement (compared to the joint feedback way),
> but it still gives you some idea of the impact magnitude when two
> objects collide. 

Tyler,

sounds like you've thought about this - what was wrong with "the joint feedback way" aren't the reaction mags easy enough to get hold of, too noisy, what gives - (?)

Bob.


> -----Original Message-----
> From: Tyler Streeter [mailto:tylerstreeter at gmail.com]
> Sent: 21 December 2004 15:20
> To: stenyak at iespana.es
> Cc: ode at q12.org
> Subject: Re: [ODE] Collision impact force
> 
> 
> > Excuse my ignorance, but does contact depth really show the 
> force of the impact, or just what it happened to be the 
> relative position of the body at that point of time with that 
> specific time step?
> > 
> 
> It's sort of a crude measurement (compared to the joint feedback way),
> but it still gives you some idea of the impact magnitude when two
> objects collide.  Since ODE continuously tries to force them apart
> when they intersect, a larger penetration depth implies that the
> impact force was great enough to overpower ODE's restitution forces.
> 
> Tyler
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