Dear AnyBody Team,
I am working with a patient-specific model performing a squat and using AnyForceSurfaceContact to calculate knee contact forces. For my evaluation, I need to retrieve the penetrating vertices at each degree of knee flexion.
Additionally, I am using AnyDrawForceSurface, which also relies on the vertices in contact. Is there a way to access this vertex data directly within AnyBody?
I appreciate any guidance you can provide!
Best regards,
Theresa
Hi Theresa,
Unfortunately, it's not an output, so it's not possible to retrieve the vertices. It should be possible post process the outputs: you have the surfaces and their kinematics from the simulation. Then, an external function may help you in extracting this info.
May I ask you why you need these vertices? Maybe I can suggest you some alternatives.
Best regards,
Dave
Hi Dave,
Thank you for your response—I really appreciate it.
I need this information to determine the ML and AP dimensions at each degree of knee flexion.
I've also been thinking about your suggestion, and I’ll give it a try.
Best regards,
Theresa
Hi Theresa,
It's not my expertise, but from what I could understand quickly reading about ML and AP dimensions at the knee is that it is based on the surface of the bone. I could be wrong about that.
I suppose you are interested in defining these dimensions based on the penetration of the surfaces, in which case, I believe best way is to post process these results.
You probably have seen that there is an output for ContactArea. And you could make a rough estimate of the penetrating volume by dividing the Force with the pressure module. I don't know if that helps you.
Best regards,
Dave