Search found 5 matches

by Cobus Muller
Tue Oct 29, 2013 2:33 am
Forum: Grand Challenge Competition to Predict In Vivo Knee Loads
Topic: PS_ngait_og_ss1 trial - .trc file correct?
Replies: 2
Views: 597

Re: PS_ngait_og_ss1 trial - .trc file correct?

Hi Allison, At the start of the trial, the right knee is hyper extended and internally rotated. During the next swing phase, the right knee rotates internally by more than 90 degrees. It might be that the trc file changed during the processing procedure and that this caused the error. I will downloa...
by Cobus Muller
Fri Oct 25, 2013 3:20 am
Forum: OpenSim
Topic: Scaling - Run button greyed
Replies: 4
Views: 879

Re: Scaling - Run button greyed

Hi James, Thanks for the advice. I changed the orientation of the markers and got a reasonable result. I realise now that you need to choose the marker pairs to which each body segment must scale carefully. I guess the choice of which marker pairs to use must be verified through an iterative procedu...
by Cobus Muller
Fri Oct 25, 2013 2:53 am
Forum: Grand Challenge Competition to Predict In Vivo Knee Loads
Topic: PS_ngait_og_ss1 trial - .trc file correct?
Replies: 2
Views: 597

PS_ngait_og_ss1 trial - .trc file correct?

Hi Allison, I am having trouble with the PS_ngait_og_ss1 trc file. The right shank and foot motion data seems to be faulty. I did check trial ss3 to test if it might be my software and processing pipeline that produce the error, and found that ss3 simulates correctly. Did you get any reports on this...
by Cobus Muller
Thu Oct 24, 2013 3:59 am
Forum: OpenSim
Topic: Scaling - Run button greyed
Replies: 4
Views: 879

Re: Scaling - Run button greyed

Hi Shaun, Thanks for the prompt response. I went through the Scale Factors and Static Pose Weights and found the error. There were two markers not defined in the model. I disabled these two markers and the Scale function is running now. The resulkt is however less than ideal. It seems the orientatio...
by Cobus Muller
Thu Oct 24, 2013 2:41 am
Forum: OpenSim
Topic: Scaling - Run button greyed
Replies: 4
Views: 879

Scaling - Run button greyed

Dear Community, I am trying to run a scaling procedure by means of the Scale Tool gui. I have composed my own markerset and scale *.xml files using the files of the gait 2392 model as blueprint. I am using the motion file (*.trc) provided with the 5th grand challenge dataset. It seems that everythin...