Question #399298 on Yade changed:
https://answers.launchpad.net/yade/+question/399298

Jan Stránský proposed the following answer:
Hello,
could you please send me an email what parameters you want to make
MatchMaker? I will modify the files for you, but I will not apply them in
the official version (since it would need some testing that the default
behavior does not change etc.)
cheers
Jan


2016-09-19 18:17 GMT+02:00 Seti <question399...@answers.launchpad.net>:

> Question #399298 on Yade changed:
> https://answers.launchpad.net/yade/+question/399298
>
>     Status: Answered => Open
>
> Seti is still having a problem:
> Thanks Jan for kind support. I have downloaded yade from
> "https://github.com/yade/trunk";
>
> is that what you have recommended?
>
> if yes,
> 1- How I can install it?
> installing package was really easy just copy/past the mentioned commend
> lines from "https://yade-dem.org/doc/installation.html"; however I am not
> sure how should I install the source codes. would you please assist me ?
>
> 2- I have found the source code of CPM on truck and I suppose I should
> change below lines to add matchmaker to control the cohesion. so dose it
> mean if I do changes in "  trunk/pkg/dem/ConcretePM.hpp" and save it
> then run YADE it will work?
>
> ###################
> class Ip2_CpmMat_CpmMat_CpmPhys: public IPhysFunctor{
>         public:
>                 virtual void go(const shared_ptr<Material>& pp1, const
> shared_ptr<Material>& pp2, const shared_ptr<Interaction>& interaction);
>                 FUNCTOR2D(CpmMat,CpmMat);
>                 DECLARE_LOGGER;
>                 
> YADE_CLASS_BASE_DOC_ATTRS(Ip2_CpmMat_CpmMat_CpmPhys,IPhysFunctor,"Convert
> 2 :yref:`CpmMat` instances to :yref:`CpmPhys` with corresponding
> parameters. Uses simple (arithmetic) averages if material are different.
> Simple copy of parameters is performed if the :yref:`material<CpmMat>` is
> shared between both particles. See :yref:`cpm-model<CpmMat>` for detals.",
>                         ((long,cohesiveThresholdIter,10,,"Should new
> contacts be cohesive? They will before this iter#, they will not be
> afterwards. If 0, they will never be. If negative, they will always be
> created as cohesive (10 by default)."))
>                         ((shared_ptr<MatchMaker>,E,,,"Instance of
> :yref:`MatchMaker` determining how to compute interaction's normal modulus.
> If ``None``, average value is used."))
>                 );
> };
>
> ##################
>
> Thanks
>
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