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[Jan Stránský <question703104@xxxxxxxxxxxxxxxxxxxxx>]

Question #703104 on Yade changed:
https://answers.launchpad.net/yade/+question/703104

Jan Stránský posted a new comment:
Most of below comments is my opinion, not based on any actual tests or
experience.

> preserving the currently existing periodic boundary conditions in YADE
and doing a trick to impose the entrance/exit of particles to/from two
adjacent boundaries

These are contradictory requirements.
Either you preserve existing approach, or you do "a trick" (also see below), not both.

Simply saying, what you want is not currently "simply" possible in Yade.

> doing a trick
> somehow changing the logic

The key would be THE trick and HOW to change the logic.

The periodic boundary conditions, or I like more to name it as periodic
contact detection, now works on the "cubic" arrangement.

Of course, what you want would be possible to implement.
However, "a trick" would mean completely new algorithm(s) for the collider (and integrator and ... ?) and significant amount of work.

"changes in the geometry" or not is then irrelevant, as the new work
would (should?) be independent of current implementation.

I would start with the python "prototype" discussed above.
Its performance would be terrible, but the implementation would not take so much time as C++ and you can test some features of the method.
Then, if it works and is promising, you can dive into C++.
Again, just my opinion, no strict rule.

Cheers
Jan

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