Nils-

if you flag <report_marker_locations> true </report_marker_locations> in the IK setup xml it will print out all the virtual marker locations of the model. This file gets overwritten with each subsequent IK trial (that comes from the same folder)

Is this the flag you have been using?

-james

Pouya- If you have data for just 1 leg you can use a simple leg model to get inverse Kinematic and Inverse dynamic estimates. You can either edit the existing models to just have a single leg, or find a simple uni-lateral leg model to download from here; http://simtk-confluence.stanford.edu:8080/dis...

Carlos-
If you could make a feature request that would be great. The link to the feature request is below.

cheers,
-james

https://simtk.org/tracker/?atid=323&gro ... unc=browse

Hi Alex- There are matlab scripts that have been built that allow you to do this. If you go to the page linked below you will find a number of matlab functions described that will allow you to alter the state controls after each time step of the integrator. http://simtk-confluence.stanford.edu:8080/...

Karelia- It seems that the GRF processing may be causing the issue. When I run ID without the external loads the joint moments seem to be giving nice values. This, along with no apparent issue with the model kinematics, I would suggest playing around with your settings for GRF processing to see if t...

Omar-
Go into the coordinates window and manually assign an angle for the fingers. Then you toggle the lock button thats located next to the value.
-james

Hi Omar,

Do the muscles for the other fingers also exhibit excitation's? The solver could be assigning the other muscles of the hand values which would cause them to extend. You may need to prescribe zero values for those muscles or lock the joints for those fingers.

cheers
-james

Hi Karelia-

It it may be an issue with the GRF data your inputting into the model. Ill PM you and we can discuss.

-James

Hi Carlos,

You can create customized plots in the tools->plots function. A detailed description is linked below.

http://simtk-confluence.stanford.edu:80 ... m/Plotting

cheers,
-james

Hi Alex,

twitch parameters are not part of the original model, that's why they are a component of the probe. I would suggest reviewing the literature for upper arm parameters. This is how the OpenSim developers got the lower limb parameters used in the example.

cheers,
-james