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[Jérôme Duriez <question688939@xxxxxxxxxxxxxxxxxxxxx>]

Question #688939 on Yade changed:
https://answers.launchpad.net/yade/+question/688939

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
For each O.bodies[x], you have to imagine an infinity of replicas of
that same body that are in one or another period = window (= Cell, kind
of).

Looking at two O.bodies[id1], O.bodies[id2], these may be very far apart
one another in terms of state.pos and still in contact depending on
these replicas.

With cellDist and the above equation in #2 YADE is able to go from the
original bodies (possibly very far apart) to the replicas in contact.
And to compute a correct branch vector..

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