Search found 7 matches

by Alexander Kotschwar
Fri May 28, 2010 2:58 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

RE: Calculated marker position from IK

THANKS!
For pointing out the obvious - if I only had found that line in the xml file earlier.

Problem solved..


Sascha
by Alexander Kotschwar
Fri May 28, 2010 12:51 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

RE: Calculated marker position from IK

Ad using point kinematic analysis:
Also thought about it, but then the effort of putting 42 markers in there (and manually adjust for every rescaling, every trial,etc..) just scared me away. :D
by Alexander Kotschwar
Fri May 28, 2010 12:47 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

RE: Calculated marker position from IK

WOW! So much feedback!
Thanks a lot for the new information, it will take me a while to assimilate it and try everything.
I will post my findings here - maybe it's of interest for others.

Cheers,
Alexander
by Alexander Kotschwar
Thu May 27, 2010 1:03 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

RE: Calculated marker position from IK

<r>Thanks for your reply!<br/> I already tried the Visualization Tool before, and as you say it works nicely for "showing" error.<br/> But I would really be interested in the numbers.<br/> Since the (calculated) marker position is already shown in Opensim (white markers-blue markers), that also mean...
by Alexander Kotschwar
Wed May 26, 2010 5:02 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

RE: Calculated marker position from IK

Nothing at all?
by Alexander Kotschwar
Thu May 06, 2010 2:39 am
Forum: OpenSim
Topic: Calculated marker position from IK
Replies: 10
Views: 2358

Calculated marker position from IK

Hi,
probably I'm missing an easy step -
how can I output a file with the calculated marker position in a global coordinate system after Inverse Kinematics (So basically, see the error between my model marker location, and the trc data)
Ideas?

Thanks,
Alexander
by Alexander Kotschwar
Tue Apr 20, 2010 3:33 am
Forum: OpenSim
Topic: Can't load IK Motion Files
Replies: 1
Views: 157

Can't load IK Motion Files

<t>I'm using 2.02b, IK works fine, but after saving I can't reload the file! Message window says file loaded, correct number of columns and rows, yet begin and end of time shown in the slider at the top are the same. Loading of mot files from 2.01 and Simm works fine.<br/> Anybody seen that before?<...