Search found 81 matches
- Wed Oct 23, 2013 4:47 am
- Forum: OpenSim
- Topic: Displacement of reference frames
- Replies: 5
- Views: 1176
Re: Displacement of reference frames
Hi Spencer, I'm not sure which model of the lower limb you are using, but many models include a knee joint that is composed of n rotational dof's and two splines (ant/post and superior/inferior) coupled to the flexion or first rotation of the knee. The combination of free rotation and coupled spline...
- Sun Sep 22, 2013 12:34 am
- Forum: OpenSim
- Topic: Scale a Model with a Script
- Replies: 3
- Views: 804
Re: Scale a Model with a Script
Hey Ursula, I would be careful using Matlab to parse, edit, compile xml's for execution in OpenSim. I don't know the exact reason for this, but OpenSim does not provide a grammar for the xml's it uses, so you are guessing a bit when you edit/create them. This leads to problems with command line exec...
- Wed Sep 18, 2013 11:50 am
- Forum: OpenSim
- Topic: Full body model and opening problems.
- Replies: 1
- Views: 210
Re: Full body model and opening problems.
Hi,
Check that your system path includes the OpenSim bin (where the .dll's are located).
The path will be ('Where you installed OpenSim"\OpenSim 3.01\bin).
It sounds like this may not be in your system path. If not, add the above path to variable list.
David
Check that your system path includes the OpenSim bin (where the .dll's are located).
The path will be ('Where you installed OpenSim"\OpenSim 3.01\bin).
It sounds like this may not be in your system path. If not, add the above path to variable list.
David
- Sat Aug 31, 2013 9:55 pm
- Forum: OpenSim
- Topic: Scaling problem - RASI & LASIS issue
- Replies: 3
- Views: 675
Re: Scaling problem - RASI & LASIS issue
Hi KT, Regarding the java error I am not totally sure. I believe though that you must tick the scale model box for the model adjuster to run. I think this is due to some requirements in the cost function that the adjust markers uses. The Osim developers would know why. Its not a problem though, you ...
- Wed Aug 28, 2013 9:33 pm
- Forum: OpenSim
- Topic: Scaling problem - RASI & LASIS issue
- Replies: 3
- Views: 675
Re: Scaling problem - RASI & LASIS issue
Hi, You are describing a common problem. Scaling is performed by applying a scale factor to the body by dimension or uniformly across dimensions. You could determine the virtual marker positions in your generic/unscaled model, and compare this with your experimentally measured inter-ASIS to determin...
- Thu Aug 15, 2013 3:53 pm
- Forum: OpenSim
- Topic: OpenSim 3.1 - Specifying log file location
- Replies: 5
- Views: 753
Re: OpenSim 3.1 - Specifying log file location
Hi Shaun,
That is also how my code runs. Some the API execution commands (maybe all not sure) require the path to the directory as input argument. While the write location doesn't seem modifiable, so it probably uses the cd as default.
Glad its working
David
That is also how my code runs. Some the API execution commands (maybe all not sure) require the path to the directory as input argument. While the write location doesn't seem modifiable, so it probably uses the cd as default.
Glad its working
David
- Mon Aug 12, 2013 2:51 am
- Forum: OpenSim
- Topic: OpenSim 3.1 - Specifying log file location
- Replies: 5
- Views: 753
Re: OpenSim 3.1 - Specifying log file location
Hi Shaun,
Are you running Windows 7? Are you running Matlab in Administrator mode? I think the permissions might be different between operating systems, not sure though.
David
Are you running Windows 7? Are you running Matlab in Administrator mode? I think the permissions might be different between operating systems, not sure though.
David
- Wed Aug 07, 2013 5:37 pm
- Forum: OpenSim
- Topic: OpenSim 3.1 - Specifying log file location
- Replies: 5
- Views: 753
Re: OpenSim 3.1 - Specifying log file location
Hi Shaun, I had a similar issue. I wanted to write the log file for each given operation, rather than overwrite. What I did was (see below example from a scaling operation): % Check for the log file test4linscalelog = dir(fullfile(subjectDir, '*out.log')); % Condition for copying log if ~isempty(tes...
- Thu Jul 11, 2013 7:39 pm
- Forum: OpenSim
- Topic: Markerset influence on Scaling results
- Replies: 3
- Views: 976
Re: Markerset influence on Scaling results
Hi Alice, A range of marker sets are possible, with IK allowing fewer markers than that required in segment based modelling but also permitting redundant marker sets where IK solves an over determined problem. For both scaling and IK, I would say the issue is going to be the fidelity between your vi...
- Tue Jul 09, 2013 9:01 pm
- Forum: OpenSim
- Topic: muscle analysis vs direct API computation
- Replies: 3
- Views: 624
Re: muscle analysis vs direct API computation
Hi All,
To update:
Success with direct computation of muscle lengths and moment arms, the outputs now match the analyze API exactly.
Thanks very much for the help,
David
To update:
Success with direct computation of muscle lengths and moment arms, the outputs now match the analyze API exactly.
Thanks very much for the help,
David