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[Bruno Chareyre <question696480@xxxxxxxxxxxxxxxxxxxxx>]

Question #696480 on Yade changed:
https://answers.launchpad.net/yade/+question/696480

    Status: Open => Answered

Bruno Chareyre proposed the following answer:
Hi Paul,
I did not check all details but here are quick answers. I would say the excess interactions you see are just virtual interactions. Try filtering them out by checking "interaction.isReal", if it does solve the issue let us know.
The zero-interaction case sounds like a real issue though. Probably linked to a couple issues we identified recently. I hope we can fix them soon. I may use your example to try and understand the problem.

> change the PFacet - external particles interactions

>From the top of my head: if you assign another material to the PFacets and to the spheres, and if you use the corresponding functors (just like for changing the sphere-sphere contact model) then it should change the contact model.
Regards
Bruno

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