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Preview JRF in GUI

Posted: Wed Mar 18, 2020 6:26 am
by kernalnet
Dear Experts,

I'd like to know how to visualize the results of JRF analysis in each joint (e.g knee) as a vector.
something like this:
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Regards

Re: Preview JRF in GUI

Posted: Thu Mar 19, 2020 1:23 am
by mitkof6
The following thread might help you in this:

viewtopicPhpbb.php?f=91&t=11581&p=0&sta ... 50f1891b88

Just make sure that the ground reaction forces are measured in the ground frame. Then, you can preview them in the GUI through File -> Preview Experimental Data ...

Re: Preview JRF in GUI

Posted: Thu Mar 19, 2020 2:48 am
by kernalnet
Hi Dimitar,

Glad to see your response.
In OpenSim 3.3, I modified the JRF.sto to a mot file (changing the headers and also the extension).
after loading an IK motion to the model, I associated the JRF.mot to it. all joint forces displayed in the zero ground. then I edited the motion objects and just checked the point force and added the proper points to point columns then the joint vectors displayed properly at each joint.
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But in Opensim 4.1, It freezes a lot and the above-mentioned method doesn't work.
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This error also appears even when I load JRF.mot as experimental data.
JRF.mot
(617.57 KiB) Downloaded 10 times
And this is my file.
Anything wrong with this file?
Your response would be greatly appreciated.

Cheers