yade-dev team mailing list archive

[Anton Gladky <gladky.anton@xxxxxxxxx>]

Hmm, good question.
Maybe not. They consist of "real" spheres and those spheres should
have a material, I think.

Anton



On Thu, Jan 19, 2012 at 11:35 AM, Klaus Thoeni <klaus.thoeni@xxxxxxxxx> wrote:
> Hi Anton,
>
> actually it is the third body and it's a clump (isClump=True). Clumps should
> have a material too, shouldn't they?
>
> Klaus
>
> On Thu, 19 Jan 2012 06:31:09 PM Anton Gladky wrote:
>>  > Real getDampCoeff() { return material->damping; };
>>
>> Can you check here a material existence?
>>
>> Anton
>>
>> On Thu, Jan 19, 2012 at 8:14 AM, Klaus Thoeni <klaus.thoeni@xxxxxxxxx>
> wrote:
>> > 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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