[ODE] Re: Box on The Ground

[Liu]

sorry, what is nb ?

is it initial setting ? or every loop must call it ?

thanks a lot ..



----- Original Message ----- 
From: "Pete Baron" <sibaroni at hotmail.com>
To: <ode at q12.org>
Sent: Wednesday, September 01, 2004 10:48 PM
Subject: [ODE] Re: ODE Digest, Vol 12, Issue 40


> Hi Liu,
>
> the forces are set to zero at the end of quickstep.c (line 779):
>
>  // zero all force accumulators
>  for (i=0; i<nb; i++) {
>   dSetZero (body[i]->facc,3);
>   dSetZero (body[i]->tacc,3);
>  }
>
> you should be able to copy them somewhere safe inside this loop and use
the
> copied values.
>
> cheers,
>
> Pete Baron
> sibaroni at hotmail.com
> http://home.btconnect.com/pete/homepage.html
>
> >Date: Tue, 31 Aug 2004 23:36:29 +0800
> >From: "Liu" <liu.mailbox at msa.hinet.net>
> >Subject: Re: [ODE] Re: Box on The Ground
> >To: "Ode at Q12. Org" <ode at q12.org>
> >Message-ID: <000d01c48f70$4a64ddd0$52fb8bdc at boycomputer>
> >Content-Type: text/plain; charset="big5"
> >
> >If I want to get the Box force from the ground, how can i get it ?
> >I use body.getForce( );
> >but it always get none.
> >
> >thanks a lot.
>
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