Question #706118 on Yade changed:
https://answers.launchpad.net/yade/+question/706118
Status: Open => Answered
Jan Stránský proposed the following answer:
Hello,
> The source code was downloaded on February 23, 2023.
please provide version you are using [1], not date you have downloaded
it.
> The ServoPIDController() function was used in my code ...
please provide the code [1]
> The ServoPIDController() function was used in my code as follows:
> ServoPIDController(axis=[0,0,1],maxVelocity=2.0,iterPeriod=50,ids=[10],target=12000,kP=0.001,kI=0.0001,kD=0.001).
>
> But now if I want to set the target value in the ServoPIDController()
> function to be a sine function of time, how do I set the target?
There are more options, one is using labels and PyRunner [2], something like:
###
O.engines = [
...
ServoPIDController(...,label="controller"),
PyRunner(iterPeriod=1,command="setTarget()"),
]
def setTarget():
controller.target = sin(O.time)
###
Cheers
Jan
[1] https://www.yade-dem.org/wiki/Howtoask
[2] https://yade-dem.org/doc/tutorial-examples.html
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