About Pullingcables function in Softrobots.Inverse.actuators

[Cuberkk]

Hi,

I try to use pullingcables function in the Softrobots.Inverse.actuators plugins. But when I am trying to use this function, I can open the scene file while I can't animate it successfully. The error appears in the terminal goes:

These two should be the reason the scene can't animate properly:


I tried to modify the size of the solver but it still cannot animate.
Here is my code

[EulalieCoevoet]

Hi,

By using from softrobots.inverse.actuators import PullingCable, it means that you wanna solve an inverse problem. In that case,
you need to replace the GenericConstraintSolver by a QPInverseProblemSolver.

[Cuberkk]

Got it, it seems that the CableConstraint can not generated in the scene using QPInverseSolver

[EulalieCoevoet]

Hello,

Yes, it's not intuitive and could probably be improved but the component CableConstraint is meant for direct problems (to be used with GenericConstraintSolver) and CableActuator for inverse problems (to be used with QPInverseProblemSolver).