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[Chiara Modenese <c.modenese@xxxxxxxxx>]

Ok, I think I know why now. I mean, since I have viscous forces stored into
normalForce that could be the cause.
Cheers. Chiara

On 28 February 2011 21:02, Chiara Modenese <c.modenese@xxxxxxxxx> wrote:

> Hi Guys,
>
> small question. I was trying to plot normal force versus overlapping of all
> my interactions. For the normal force I want to keep the sign and so I
> simply project it onto the corresponding normal vector something like:
> Fn=i.phys.normalForce.dot(i.geom.normal). The problem is that, without
> adhesion and according to a certain convention, I expect forces all of the
> same sign whereas I sometimes record opposite ones. A problem in my script
> or why does that happen?
>
> Thanks, Chiara
>