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Re: [Question #231633]: Problem with stress mask value

To: yade-users@xxxxxxxxxxxxxxxxxxx
From: Klaus Thoeni <question231633@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 27 Oct 2016 12:13:46 -0000
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Question #231633 on Yade changed:
https://answers.launchpad.net/yade/+question/231633

Klaus Thoeni posted a new comment:
Not sure if there is a good example. Long story short it is a bit wise
comparison. Here a short example assuming three bodies:

O.bodies[0].mask=1  # 00000001 -> corresponds to 1 in the binary system
O.bodies[1].mask=2  # 00000010 -> corresponds to 2 in the binary system
O.bodies[2].mask=3  # 00000011 -> corresponds to 3 in the binary system

In this example, O.bodies[0] and O.bodies[1] would not interact whereas
O.bodies[2] would interact with both.

HTH
Klaus

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