<t>Ayman<br/> <br/> I think my post may have been confusing - I have carried out simplified ID calcs in Matlab successfully, but when I try to implement in OpenSim I get "1.#QNAN000000000000000" in each state entry.<br/> <br/> I tried removing all muscles and the results don't change.<br/> <br/> Reg...

<t>Hi, <br/> <br/> I have a model of the equine forelimb that I have set up for inverse dynamics. I have populated the inertial matrices with values that produce good results for sagittal plane analyses that I have carried out in Matlab. However when I run with either external loads specified or not...

<t>Joseph,<br/> <br/> I had two separate joints that moved using the same generalised coordinate in my original model. This was fine with SimmKinematicsEngine, but would not work with SimBody. <br/> <br/> Do you need to have the patella and tibia as different bodies? From the look of the example mod...

<r>Joseph<br/> <br/> I am working with an equine model, which approximates all joints of one limb as (near) hinge joints in the same plane. Therefore all joints with translations relating to the joint angle are in the same plane. <br/> <br/> All of these joints were previously in the X-Z plane. To r...

<r>ok - I have managed to overcome this problem by pasting my model properties into a model works, item by item.<br/> <br/> The causes of crashes were:<br/> <br/> 1. The joint hierarchy was not directional, i.e. ground was attached to segment1, but the next joint specified "segment2 segment1" instea...

<r>here is the diagnostics using opensim_w.exe from a command window:<br/> <br/> Created model forelimb from file D:\ ...\fullForelimb.osim<br/> Handling locked coordinate.<br/> Found constant rotational offset.<br/> Constant rotational offsets are not currently supported.<br/> Setting the constant ...

<t>Hi,<br/> <br/> I've migrated my model from SIMM to opensim, creating a model based on the simmkinematics engine. Based on the layout of the examples, I have attempted to further migrate the model to employ the Simbody engine. <br/> <br/> I think that I have addressed all of the error messages:<br...

<r>It may not be for everyone, but I've found VIM (<URL url="http://www.vim.org/">http://www.vim.org/</URL>) to be very useful for editing XML files as the color coding of tags is very easy on the eye.<br/> <br/> However it can be a little clunky if you are not used to its shortcut keys and response...

Hi,

Is there any easy way to extract the individual muscle point trajectories for a defined motion of a model?

Are they stored in a file either temporarily or permanently?