Piecewise linear function

[Jantsche]

Hello,
Is there a way to use a piecewise linear function for the generalized position constraint?
Im trying to get a varying angle for the rotation of a spinning Disk in an experiment for gyro effects.
Using the piecewise polynom function i have managed to get a varying angle but the problem is, that the curve of the angle has quite large overshoots.
I thought that i could make the stepsize smaller to reduce these overshoots but that would lead to much manual writing of the data.
Could it be a command for the interpolation method different from "cSplineNatural"?

Best regards Jantsche

[foerg]

Hi,
when using generalized position constraints, the first derivative of the position function must be continuous. This condition is necessary as the acceleration has to be finite. Thus, a linear interpolation can not be used in conjunction with position constraints. However, you can also define a generalized acceleration constraint, where the acceleration function can even be discontinuous. Discontinuous functions can either be defined with "piecewise defined function" or with "symbolic function" using the keyword "condition".

[Jantsche]

Hello,
I understand.
Is there any other way to set a defined angle that changes over time?
Because with an acceleration constraint, the setting of a predefined angle (i.e. an angle that you simply specify in radians) is not possible, is it?

[foerg]

It is. How does your function look like?