Dear All,
Firstly, I want to thank you all for your replies and help.
Converge of the matlab script took so long in my computer, although I restricted the max iteration number with 200.
Moreover when I modified Ross Miller's osim model for my study and tried this modified model with squad to stand matlab script (Because I could not find the prediction part of Miller's matlab script). After script run, I obtained only environment of OpenSim Moco Visualizer (only blue and brawn screen).
As a result I could not see my model with other scripts, Do you have any idea to see my model with other codes ?
Best Regards,
Burak.
Predict walking pattern by using OpenSim-Moco
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Burak Kula
- Posts: 31
- Joined: Wed Dec 04, 2019 3:34 pm
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Ross Miller
- Posts: 375
- Joined: Tue Sep 22, 2009 2:02 pm
Re: Predict walking pattern by using OpenSim-Moco
Hi Burak,
200 iterations is probably not enough for consistent convergence in my experience. If you are running into impractically long CPU times, you might want to start using a 2-D model. It will be much faster than a 3-D model.
The Matlab code I posted is set up for doing tracking simulations of gait, with "sub-task" MocoGoals that are relevant for gait (e.g. periodicity, average speed) but probably not relevant for sit-to-stand. To do predictive simulations of sit-to-stand you would need to remove the state and GRF tracking problems (or replace the data they are tracking with sit-to-stand data) and then specify new MocoGoals that are relevant for sit-to-stand:
https://opensim-org.github.io/opensim-m ... _goal.html
The SquatToStand example that comes with Moco may be a better starting point than my code for what you're trying to do.
Ross
200 iterations is probably not enough for consistent convergence in my experience. If you are running into impractically long CPU times, you might want to start using a 2-D model. It will be much faster than a 3-D model.
The Matlab code I posted is set up for doing tracking simulations of gait, with "sub-task" MocoGoals that are relevant for gait (e.g. periodicity, average speed) but probably not relevant for sit-to-stand. To do predictive simulations of sit-to-stand you would need to remove the state and GRF tracking problems (or replace the data they are tracking with sit-to-stand data) and then specify new MocoGoals that are relevant for sit-to-stand:
https://opensim-org.github.io/opensim-m ... _goal.html
The SquatToStand example that comes with Moco may be a better starting point than my code for what you're trying to do.
Ross