I'm not able to change the time simulation. In the leg39 it's not possible to go over 0.4 s. I change the controls.sto and the control.xml and leg39_setup forwarddynamic.xml and pseudostate.sto , but nothing at o.4 the sim stops.
do you have any idea?
thanks

thanks, for my technical language moment is a torque, that's it. Now it's a definitely clear.

what is the difference between leg39_states.sto and leg39_states_degrees.mot?
which kind of relationship between them we have?

<r>I didn't found a right example to modify the coordinates, but I can take a generic one and set the final angle that I want in the knee and then make an interpolation in according to the time. What can I do for the other body coordinates (calcaneus, toe, etc...)? do I still apply interpolation?<br...

when I go in analyze menu how can say to pointkinematics to connect this point to the bone. I'm gone on edit but it's impossible to modify something. I need to work more on it to understand it.

there two files very similar (for me are same)
controls.xml and controls_off.xml.
When I used them on the forward dynamic simulation I didn't see any difference.
I opened in XML and they seem the same.
what is the difference?

<t>I don't understand why I set a simulation time of 6 seconds in setting window and in leg39_setup_forwarddynamics.xml and the simulation stops only after 0,4s.<br/> I have this message from console:<br/> Integrating from 0 to 0.4<br/> RKF.step: NAN in state 25 at time 0.0140902 (dt = 0.00524288)</t>

sorry I found pointkinematics in analyze tool, but my problem is giving the right kinematics, because I don't have marker data.

<t>I found this:<br/> <Force name="default"><br/> <body_A> </body_A><br/> <point_A> 0.00000000000000000000 0.00000000000000000000 0.00000000000000000000 </point_A><br/> <direction_A> 1.00000000000000000000 0.00000000000000000000 0.00000000000000000000 </direction_A><br/> <body_B> </body_B><br/> <poi...

about pointkiematic practically are you saying to attach a marker where I want to put a force?
is it right?
If I write pointkinematics I did't find anything on the opensim user's guide.

Thanks Ayman

Regards

Franesco