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[Jan Stránský <question275840@xxxxxxxxxxxxxxxxxxxxx>]

Question #275840 on Yade changed:
https://answers.launchpad.net/yade/+question/275840

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi Yang,
what version of Yade do you use? I have a version from 2015-08-05 and there
this is fixed (but not tested very much)
cheers
Jan


2015-11-28 12:27 GMT+01:00 MikeZhao
<question275840@xxxxxxxxxxxxxxxxxxxxx>:

> New question #275840 on Yade:
> https://answers.launchpad.net/yade/+question/275840
>
> Hi there,
>
> I've done a small test with tetra/tetraPoly element, and I found out that
> it's not doable to make an assembly of tetras a clump, here is the code:
>
> b=range(2)
> b[0] = utils.tetraPoly([[0,0,0],[1,0,0],[0,1,0],[0,0,1]])
> b[1] = utils.tetraPoly([[0,0,0],[1,0,0],[0,1,0],[0,0,-1]])
> O.bodies.appendClumped([b[0],b[1]])
> #O.bodies[2] is the clump:
> O.bodies[2].shape.members
>
> ##### below is the output ########
> {0: (Vector3(nan,nan,nan), Quaternion((nan,nan,nan),6.283185307179586)),
>  1: (Vector3(nan,nan,nan), Quaternion((nan,nan,nan),6.283185307179586))}
>
> #and I added an egine and called O.step():
> O.engines = [
>        ForceResetter(),
>        InsertionSortCollider([Bo1_Polyhedra_Aabb()]),
>        InteractionLoop(
>                [Ig2_Polyhedra_Polyhedra_PolyhedraGeom()],
>                [Ip2_PolyhedraMat_PolyhedraMat_PolyhedraPhys()],
>                [PolyhedraVolumetricLaw()]
>        ),
>        NewtonIntegrator(damping=0),
>   ]
> O.step()
> O.bodies[0].state.pos
>
> ##### below is the output ########
> Vector3(nan,nan,nan)
>
> I want to know if this could be modified? Because dividing those tetras
> into different clumps can make the calculation much more efficient.
>
> Thanks for your precious time. I'm looking forward to your reply:-)
>
>
>
>
>
>
>
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