Hello Everyone,
I am wondering that, how moco 1.0 knows GRF points (center of pressure(CoP) points) ?
As I know, in Moco there is no way to calculate CoP but when I visualize the result, I can see the GRF forces on display video but when I load the "result.sto" file that is obtained in Moco, I could not see the GRF forces as I see in Moco. In moco GRF forces act from contact points on toes (e.g.: in my model its name is front) and in OpenSim GRF forces act on only middle of "floor" body not on calcaneus or toes
Burak.
GRF point in MOCO vs OpenSim
-
Nicholas Bianco
- Posts: 1044
- Joined: Thu Oct 04, 2012 8:09 pm
Re: GRF point in MOCO vs OpenSim
Hi Burak,
Moco doesn't compute CoP from the SmoothSphereHalfSpaceForce elements in your model, but you can compute CoP based on the forces and moments that these elements report (i.e, from 'createExternalLoadsTableForGait()'). See this webpage: http://www.kwon3d.com/theory/grf/cop.html.
The Simbody visualizer creates a force visualization from the simulation result, but the GUI unfortunately does not.
Best,
-Nick
Moco doesn't compute CoP from the SmoothSphereHalfSpaceForce elements in your model, but you can compute CoP based on the forces and moments that these elements report (i.e, from 'createExternalLoadsTableForGait()'). See this webpage: http://www.kwon3d.com/theory/grf/cop.html.
The Simbody visualizer creates a force visualization from the simulation result, but the GUI unfortunately does not.
Best,
-Nick