Search found 24 matches
- Fri Jul 25, 2014 8:11 am
- Forum: Grand Challenge Competition to Predict In Vivo Knee Loads
- Topic: 6th competition:Markers
- Replies: 4
- Views: 825
Re: 6th competition:Markers
Dear Priti, I'm afraid I don't have any photos to show you at the moment and can only refer you to Figure 1 of the Competition data description document, which you have seen already. I think the issue you are having may be partly related to the scaling process itself. Sometimes you have to iterate o...
- Thu Jan 09, 2014 7:43 pm
- Forum: OpenSim
- Topic: LNK2001 error when compiling TugOfWar example
- Replies: 1
- Views: 325
Re: LNK2001 error when compiling TugOfWar example
Make sure you added all your additional library directories, additional include directories, and additional dependencies (.lib files)
- Thu Jan 09, 2014 7:37 pm
- Forum: OpenSim
- Topic: Can't save model
- Replies: 4
- Views: 190
Re: Can't save model
That is correct. Each model can only have one default pose.
- Mon Jan 06, 2014 1:58 pm
- Forum: OpenSim
- Topic: CMC and Static Optimization fails with Disabled Muscle
- Replies: 5
- Views: 1026
Re: CMC and Static Optimization fails with Disabled Muscle
What happens if you delete the muscle altogether, and try to run it?
- Wed Jan 01, 2014 2:28 pm
- Forum: OpenSim
- Topic: Forward Dynamics Simulation Issues
- Replies: 1
- Views: 176
Re: Forward Dynamics Simulation Issues
Some ideas: 1) Could gravity be extending the fingers? Or any other force? 2) Do your joints have default initial generalized speeds larger than zero, which initially extend the fingers? 3) Have you tried using simple pathActuators instead of muscles? The simulation speed problem could be due to ver...
- Mon Dec 30, 2013 2:44 pm
- Forum: OpenSim
- Topic: Why asymmetric
- Replies: 3
- Views: 161
Re: Why asymmetric
It seems to me like this is a machine precision issue. 1e-14 could be considered zero (epsilon), as far as PC simulation goes.
http://en.wikipedia.org/wiki/Machine_epsilon
http://en.wikipedia.org/wiki/Machine_epsilon
- Mon Dec 30, 2013 2:31 pm
- Forum: OpenSim
- Topic: C++ code excisting models
- Replies: 1
- Views: 137
Re: C++ code excisting models
You can simply edit an existing model by changing the xml (.osim) directly.
- Tue Jun 04, 2013 9:21 am
- Forum: OpenSim
- Topic: I cannot include OpenSim.h in my mex file
- Replies: 2
- Views: 663
Re: I cannot include OpenSim.h in my mex file
Sina, I'm not sure if this will help you but I'm attaching an example Matlab command which I use to compile a mex file for my OpenSim application. Perhaps you can adapt it to match your needs. First cpp file is contains mex function. Other cpp files contains other needed code. -L indicate library lo...
- Thu Mar 21, 2013 7:54 am
- Forum: OpenSim
- Topic: ID problems in 3.0
- Replies: 10
- Views: 1756
Re: ID problems in 3.0
I had the same "matrix is singular" problem but running forward dynamics. The problem was that I had muscles in my model but hadn't specified a control for them. Removing the unused muscles solved the problem.
- Thu Mar 21, 2013 7:49 am
- Forum: OpenSim
- Topic: specifying inputs for inverse dynamics on Matlab API
- Replies: 1
- Views: 439
specifying inputs for inverse dynamics on Matlab API
Hi. I'm trying to run inverse dynamics from the Matlab API for a single time frame (e.g. time t1). I want to specify the generalized coordinates and their first and second order time derivatives at time t1, plus the value of external forces acting on time t1, and obtain the inverse dynamics loads fo...