Hi guys,
can anyone help me on this?
Klaus
On Thu, 12 Jan 2012 06:03:16 PM Klaus Thoeni wrote:
> Hi guys,
>
> as discussed with Bruno in Barcelona I need different non-viscous damping
> coefficients for different materials. I introduced this capability by
> adding a variable damping to the base class material which is initialised
> with NaN. The body class has a function getDampCoeff() and in
> NewtonIntegrator I use this function in order to change the damping
> coefficients. When running some examples it seems that everything works
> fine. However, I just run 'yade --test' and it gives me a seg fault:
>
> testVelocity (yade.TestSimpleClump)
> Clump: velocities of member assigned by NewtonIntegrator ... Segmentation
> fault
>
> I think I now where the problem is. In NewtonIntegrator I call something
> like:
>
> if(!isnan(b->getDampCoeff())) dampcoeff=b->getDampCoeff();
>
> where getDampCoeff() is defined in body.hpp as:
>
> Real getDampCoeff() { return material->damping; };
>
> I think the test doesn't have a material and therefore I get the seg fault.
> Right? How can we fix this so that I can commit the code?
>
> Klaus
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