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[Jan Stránský <question691829@xxxxxxxxxxxxxxxxxxxxx>]

Question #691829 on Yade changed:
https://answers.launchpad.net/yade/+question/691829

    Status: Open => Answered

Jan Stránský proposed the following answer:
> When I entered O.pause() in the terminal and called for "pred"

if you call also "pred" form terminal, it is not defined. "pred" and "assembly" are local names defined only inside grevityDeposition function.
So if you want to experiment, add code to that function.

> Another thing ...

there are a few issues in your approach:

1) "sp" is still the same. If you compress particles in the simulation, it has no backward effect on the original "sp". You can do something like:
###
sp.toSimulation()
compression()
sp.fromSimulation()
###
to update "sp"

2) filterSpherePack returns a new sphere pack, again with no influence on the original sphere pack nor the influence on actual simulation. So probably you want something like
###
sp = filterSpherePack(pred,sp,True)
O.bodies.clear() # otherwise all existing particles still exist
sp.toSimulation()
###

> the fact that you were able to see a reduction in # of bodies

no, I saw increase of # of bodies, as your code (considering all above)
actually should have done :-)

cheers
Jan

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