Search found 2248 matches

by Ayman Habib
Thu Nov 29, 2007 9:47 am
Forum: OpenSim
Topic: enlarging the time nterval
Replies: 2
Views: 557

RE: enlarging the time interval

<t>Dear Dana,<br/> <br/> Can you please clarify the context: what model, data files you're trying to use? <br/> The Tutorial assumes some model and data files that we distribute. The data files have actual motion data from 0. to 4. secs. I'm not sure what are the 14 and 30 secs you're referring to b...
by Ayman Habib
Wed Nov 28, 2007 11:53 am
Forum: OpenSim
Topic: emg data
Replies: 5
Views: 979

RE: emg data

<t>Dan,<br/> <br/> Confirmed, though I have to say that the contribution of the display overhead is minmal probably except during "forward".<br/> <br/> You can also run the tools using command line version without even having to open the GUI. The GUI saves you creating the "setup" files by hand but ...
by Ayman Habib
Mon Nov 26, 2007 3:50 pm
Forum: OpenSim
Topic: Muscle-tendon length data from simulations
Replies: 2
Views: 648

RE: Muscle-tendon length data from simulation

<t>Dear Dan,<br/> <br/> You can plot muscle-tendon length for muscles in the current model during any motion (doesn't have to be a simulation) in the plot tool by picking <br/> - muscle-tendon length for Y-Quantity, <br/> - the motion of interest in the X-Quantity <br/> - select the muscles you care...
by Ayman Habib
Mon Nov 26, 2007 12:47 pm
Forum: OpenSim
Topic: OpenSim running
Replies: 2
Views: 753

RE: OpenSim running

<t>Dear Dana,<br/> <br/> I think you have more than one application called OpenSim on your machine somehow. Please launch the application from the desktop shortcut or start menu to make sure you get our application!. <br/> <br/> The call stack you referred to is not in our code..<br/> <br/> Best,<br...
by Ayman Habib
Wed Nov 21, 2007 11:30 am
Forum: OpenSim
Topic: Disabling gravity
Replies: 4
Views: 892

RE: Disabling gravity

<t>Dan, <br/> <br/> I reproduced and fixed the problem related to trying to run a forward simulation without external loads. The fix will be in version 1.1 which will be out shortly. For what you have I'd suggest you set the values of the ground reaction forces in the data files to 0. and let OpenSi...
by Ayman Habib
Tue Nov 20, 2007 12:32 pm
Forum: OpenSim
Topic: Disabling gravity
Replies: 4
Views: 892

RE: Disabling gravity

<t>Hi Daniel, <br/> <br/> Gravity is specified in the model's osim file under the xml tag <gravity>:<br/> <br/> <gravity> 0.00000 -9.80665000 0.00000</gravity><br/> <br/> You can use a text editor to modify it or you can open the file using<br/> Edit->File (.osim) <br/> Browse for the model file (.o...
by Ayman Habib
Tue Nov 20, 2007 12:26 pm
Forum: OpenSim
Topic: Building objects for human interaction
Replies: 1
Views: 454

RE: Building objects for human interaction

<r>Dear Daniel,<br/> <br/> VTK has some converters to import different file formats including STL. You'll need to check kitware's site to find how these are packaged or if they're available in a product that you can download and use directly. Here's a faq page from kitware related to the issue:<br/>...
by Ayman Habib
Fri Nov 16, 2007 3:58 pm
Forum: OpenSim
Topic: RRA and CMC
Replies: 21
Views: 5279

RE: RRA and CMC

Dear Daniel,

Can you please send me the details of how you reproduced the problem in OpenSim 1.0 with our own model and data files so that I can investigate?

Thanks,
-Ayman

by Ayman Habib
Mon Nov 05, 2007 5:12 pm
Forum: OpenSim
Topic: DIRECT CINEMATIC AND SYMULINK
Replies: 1
Views: 612

RE: DIRECT CINEMATIC AND SYMULINK

<t>Dear Fabio,<br/> <br/> 1) It is possible to run a forward simulation to predict movement given a set of muscle excitations. In addition to the muscle excitations, you need to specify the initial states of the model, which include not only the joint angles, but also the muscle activations and fibe...
by Ayman Habib
Fri Oct 12, 2007 10:29 am
Forum: OpenSim
Topic: Saving plots
Replies: 0
Views: 409

Saving plots

<t>>>I am wondering if I can output the plot to save as a file?<br/> <br/> We understand the value of the feature to save and restore plots as is, and we're working on implementing it. In the meantime users can do the following in OpenSim 1.0:<br/> <br/> - Export the plot to an image (png, postscrip...