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[Jan Stránský <question294531@xxxxxxxxxxxxxxxxxxxxx>]

Question #294531 on Yade changed:
https://answers.launchpad.net/yade/+question/294531

    Status: Open => Answered

Jan Stránský proposed the following answer:
Hello,

Yade (Python) goes through the script and executes line by line. If you
have it like that in your script (once), then it is executed just once.

To execute is regulary, use PyRunner [1] in your engines:

#########################
def colorSpheres():
  for s in O.bodies:
    s.shape.color = ....

O.engines = [
  ...
  PyRunner(iterPeriod=100,command="colorSpheres()"), # you can use
realPeriod or virtPeriod instead of irerPeriod
]
#########################

cheers
Jan

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


2016-05-28 12:56 GMT+02:00 Clinton Schramm <
question294531@xxxxxxxxxxxxxxxxxxxxx>:

> New question #294531 on Yade:
> https://answers.launchpad.net/yade/+question/294531
>
> Hey Guys
> New to Yade, been building a model for a tunnel simulation. What i'm
> trying to acheieve is have the spheres change colour based on there
> displacement so that I can see where the movement is occuring. Not sure if
> it's necessary to post the whole code?
>
> Right now the line I am using is
>
> for s in O.bodies:
>
> s.shape.color=scalarOnColorScale(0.1*s.state.displ().norm(),0,0)
>
> What currently happens is the spheres change colour, but only initially.
> Is this the right code to do that? Could someone explain what this code is
> actually doing?
>
>
>
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