yade-users team mailing list archive

[Jérôme Duriez <question674396@xxxxxxxxxxxxxxxxxxxxx>]

Question #674396 on Yade changed:
https://answers.launchpad.net/yade/+question/674396

    Status: Open => Answered

Jérôme Duriez proposed the following answer:
Hi,

1. and 2. Your problem/mistake is not clear to me, could you elaborate ? 
(what is the error message, if any ?) 
Also, it seems you started adapting from an existing YADE script, but you do not state which script.

3. O.engines[:3] and O.engines[4:] are two sub-lists extracted from
O.engines list.

The "+" concatenates these two lists to create a new one (see the
general Python doc for list operations, and more details regarding the
:3 or :4 notation -- so-called slice notation in Python)

Which is then affected back to O.engines, updating the engines for the simulation.
In the end, you just removed one engine from the DEM loop.

Try with the general Python example: (in Python interface or in YADE interface, it's the same here)
list = range(0,5)
list[:3] + list[4:]
and check the results of these two lines

-- 
You received this question notification because your team yade-users is
an answer contact for Yade.