Re: [simspark-devel] doubt about FRP

[Yuan X. <xuy...@gm...>]

Hi Hedayat,

Sorry for my mistake,
our agent do not clear the old FRP while updating the sense.

Thanks!

2007/6/16, Hedayat Vatankhah <hed...@ai...>:
>
>  Hi,
>  Thank you for your feedback on FRP. When the foot does not touch any thing,
> FRP should not be sensed. In my own tests (normal cases, not flying!), it is
> the case. FRP is sensed only when a foot is on the ground. I've not tested
> it, but if the agent is flying, and his feet doesn't touch anything (even
> it's own body), FRP should not be sensed.
>  I've checked my code again, and I think that if there is any FRP sense, so
> certainly ODE has reported at least one collision. Please check it a little
> more to see if FRP is sensed when there is no collision and let me know the
> results.
>  Hopefully, it should be OK. And the output you've provided could be really
> correct! As the output shows, all the applied force are from sides.
>
>  Thanks a lot,
>  Hedayat
>
>  "Yuan Xu" <xuy...@gm...> wrote on 06/15/2007 08:35:08 PM:
> Hi Joschka and Hedayat,
>
>  I have a doubt about Force Resistance Perceptor:
>  It provides information about collision,
>  however in my test, the agent receive such perception:
>  (FRP (n lf) (c 0.04 0.12 -0.05)(f 12.61 10.39 0))(FRP (n rf) (c -0.48
>  -0.02 -0.06)(f -11.01 17.48 0))
>  while the agent is 'flying'!
>  In my opinion, if the foot does not touch any other thing, the force
>  should be zero or the FRP should not be sensed.
>
>


-- 
Best wishes!

Xu Yuan
School of Automation
Southeast University, Nanjing, China

mail:   xuy...@gm...
          xy...@ya...
web:   http://xuyuan.cn.googlepages.com
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