Get the vector of ROI

[Cuberkk]

Hi guys,

I am doing a force sensing project using the qpinversesolver and force point actuator. By referring to the cpp code in the git repo, I found that I am unable to decompose the force result in the X, Y, and Z axes.

If I set 6 force-point actuators to the same point and specify the direction they will need to solve to [1,0,0], [-1,0,0], [0,1,0], [0,-1,0], [0,0,1], [0,0,-1] (which I expect them to give me results on ± X, ±Y, and ±Z), the mesh model will just disappear in the GUI if I click Animation.

If I set 1 force-point actuator and didn't specify the solving direction, which, according to the docs, the actuator will solve in the norm direction of ROI, the results would make sense, but I would be unable to decompose the force.

So I am thinking if the solver is solving the force in the norm of ROI, is there a way that we also get the direction vector of norm of ROI so we can decompose the force in ± X, ±Y, and ±Z? Or there are some other smarter ways that I am missing.

Thanks for your time and assistance!