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Re: [Question #707285]: Interactions between a boxes isn't 'real'

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Jan Stránský <question707285@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 13 Jul 2023 19:40:38 -0000
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Question #707285 on Yade changed:
https://answers.launchpad.net/yade/+question/707285

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

> I can't find a functor for interactions between box-type objects.
There is 'Ig2_Sphere_Sphere_ScGeom()' functor for interactions between
spheres, but I don't see similar one for the boxes.

There is no box-box Ig2 currently in Yade.

> I detect the interaction between two boxes in the attached MWE , but
it isn't real

The interaction is "potential" form collider point of view (the axis aligned boxes around the box shapes intersect).
Therefore you have interaction, but without any IGeom (created by Ig2, but it does not exist for box-box), so it is not real.

You would have similar behavior for spheres if you omit
Ig2_Sphere_Sphere.

> Help me please to solve this small problem.

The solution is to implement a new Ig2_Box_Box, so in fact not too small
problem..

Cheers
Jan

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