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[Robert Caulk <question693030@xxxxxxxxxxxxxxxxxxxxx>]

Question #693030 on Yade changed:
https://answers.launchpad.net/yade/+question/693030

    Status: Open => Answered

Robert Caulk proposed the following answer:
It is important to look at all changes that you make to your script with
respect to the working example script. In this case, with oedometer.py,
you said the only change was that you replaced makeCloud with
randomDensePack. That is not true, I see many other changes, including
the removal of TriaxalStressController, rearrangement of material and
body assignments, change of body sizes, changes to timestep, etc. etc.

I think it will help you more if I simply tell you that one of the
changes you made led to your problem, please try to narrow it down
yourself.

Hints: 
1/ the problem change does not have to do with makeCloud vs randomDensePack. 

2/ The documentation indicates the importance of wall ID numbers [1]

3/ You can compare two scripts easily using diff:
diff -y myNewScript.py oedometer.py

Good luck, let me know if you cannot still find which change led to your
error.

[1]https://yade-
dem.org/doc/yade.wrapper.html#yade.wrapper.FlowEngine.idOffset

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