Hi Ayman,

I believe I have mass properties for all my segments (except ground but it should not matter if I am right).

With properties I mean mass, mass center and inertia.

Thanks for any support you could give me.
Fausto

Sorry my attachment did not go through. I am posting down here: Constructing tool from setup file idsetok.xml. ----------------------------------------------------------------------- Starting Inverse Dynamics ----------------------------------------------------------------------- -------------------...

Hi,
after running scaling and IK I try to run ID but the simulation does not start and I get the following error.
I believe all my inputs are correct, having checked them with those available on line.

Any idea on what's wrong?

Thanks

Thanks Ayman,
the document you post was very helpful.
Cheers
Fausto

Yes, thanks.

I found the same on Delp's paper of 1995.
My point is where or how I can find the function that describe the change in muscle length with respect to the joint angle.

Hi,

I would like to find some information about how Opensim compute the moment arms.
In particular my ultimate task will be to input the moment arms in the model according with some measure coming from imaging.

Thanks
Fausto

Thanks Ayman.
Because I am trying to run as much as I can through Matlab I was wondering if I could avoid to use the plot and so extracting the data maybe directly from the model file.
Regards
Fausto

<t>Hi,<br/> <br/> I would need of an explanation about the plotting tool.<br/> 1)If I plot a curve (i.e. Moment vs joint angle) can I also set the other coordinates of the model?<br/> For example if I am interested in the Moments of plantaflexors on joint angle can the model takes in account also di...

Thanks Ayman!

<t>Hi Ayman,<br/> <br/> I have some troubles with the preparation of a file .sto, in particular for the values of the angle I have to give as input.<br/> From a visual checking in the "coordinates" panel I understand that the values of the angle are set in degrees.<br/> If I prepare such a file and ...