yade-dev team mailing list archive

[Václav Šmilauer <eudoxos@xxxxxxxx>]

> Seems, r63 works normally for non-clumped particles.
> 
> But some clump members disappear after a first step. Is it somewhere in
> clump.cpp?
There is no mysterious math in clump, there are conjugate quaternions, but nothing special. Try creating clumps, save it and see if there is difference in the XML for eigen and non-eigen versions. There is eigenvalue decomposition used to compute clump inertia matrix and it might be not correctly implemented in the glue. Cheers, Vaclav