yade-dev team mailing list archive

[boon chiaweng <booncw@xxxxxxxxxxx>]

It works! Thanks, Jerome.


Cheers,

CWBoon

> Date: Tue, 15 Dec 2009 14:25:19 +0100
> From: jerome.duriez@xxxxxxxxxxxxxxx
> To: yade-dev@xxxxxxxxxxxxxxxxxxx
> Subject: Re: [Yade-dev] help with debug
> 
> Hi,
>     I guess you ask this question to compute the result of the rotation 
> corresponding to your "Quaternion", applied to your "Vector", isn't it ?
>     If yes, you can use the function Rotate, defined in Wm3Quaternion 
> (in my not up to date version...)
> 
> Jerome
> 
> boon chiaweng a écrit :
> > Hi,
> >
> > Can someone advise me how do I multiply a  Quaternion.Conjugate * 
> > Vector * Quaternion?  The following doesn't work, including the 
> > assignment in terms of "=" and "()".  I looked at the wm3 template, 
> > but suspect that vector*quaternion is not supported?
> >
> > Vector3r localP1 = (0);
> >     localP1 = state1.ori.Conjugate() * tempP1 * state1.ori;
> >  Vector3r localP2 =  (0);
> >     localP2 (state2.ori.Conjugate() * tempP2 * state2.ori);
> >
> >
> > Yours,
> >
> > CWBoon
> >
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> 
> -- 
> Jérôme Duriez
> ATER Iut 1 Grenoble, département GMP - Laboratoire 3S-R
> 04.56.52.86.49 (ne pas laisser de messages sur le répondeur)
> 
> 
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