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[Jan Stránský <question355381@xxxxxxxxxxxxxxxxxxxxx>]

Question #355381 on Yade changed:
https://answers.launchpad.net/yade/+question/355381

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hi Luis,
geom.facetBox creates several facets, so it is not a single body and
therefore you cannot plot its position..
you can sum the forces from all bodies and define position somehow based on
position of individual facets (e.g. average or weighted average o positions
of individual facets)

############
f = sum(O.forces.f(id)[2] for id in p2)
z1 = sum(O.bodies[id].pos[2] for id in p2) / len(p2)
############

is that what you meant?

cheers
Jan


2016-08-21 4:32 GMT+02:00 Luis Barbosa <question355381@xxxxxxxxxxxxxxxxxxxxx
>:

> New question #355381 on Yade:
> https://answers.launchpad.net/yade/+question/355381
>
> Hi,
>
> I am defining a plane with name p2:
> p2=O.bodies.append(utils.geom.facetBox((0,0,r),(0.01,-0.01,
> r),wallMask=32))
>
> I am using the id to plot, but it is not convenient to identify in each
> simulation.
> plot.addData(z1=O.bodies[id].state.pos[2],F=O.forces.f(id)[2])
>
> Is there a way to plot the position and forces of this body p2 using a
> ids=p2?
>
> Tks,
> Luis
>
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