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[Question #668062]: What does this warning mean when trying to create a randomDensePack?

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Vinícius Godim <question668062@xxxxxxxxxxxxxxxxxxxxx>
Date: Wed, 18 Apr 2018 19:47:26 -0000
Reply-to: question668062@xxxxxxxxxxxxxxxxxxxxx
Sender: bounces@xxxxxxxxxxxxx

New question #668062 on Yade:
https://answers.launchpad.net/yade/+question/668062

pred = pack.inSphere( (0,0,0), 1)
spheres=pack.randomDensePack(pred,spheresInCell=50,radius=.1)

Output:
"No suitable packing in database found, running PERIODIC compression
/usr/lib/x86_64-linux-gnu/yade/py/yade/pack.py:296: FutureWarning: The default behavior will change; specify returnSpherePack=True for the new behavior, and False to get rid of this warning (your code will break in the future, however). The returned SpherePack object can be added to the simulation using SpherePack.toSimulation()
  warnings.warn('The default behavior will change; specify returnSpherePack=True for the new behavior, and False to get rid of this warning (your code will break in the future, however). The returned SpherePack object can be added to the simulation using SpherePack.toSimulation()',category=FutureWarning)"

Especifically the " running PERIODIC compression" part, how is this compression performed? Can I run this sort of compression method manually myself?

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