Search found 19 matches

by Travis Peterson
Fri Feb 04, 2011 5:52 pm
Forum: OpenSim
Topic: Local coordinate systems
Replies: 1
Views: 203

Local coordinate systems

<t>Hi,<br/> <br/> Just wondering if it is possible to display the positions of the "local coordinate systems" of each body in the OpenSim GUI, similar to the global x-y-z coordinate axes available? Or if not, is there an easy way to determine the origins of each coordinate system (with respect to th...
by Travis Peterson
Tue Jun 29, 2010 10:50 am
Forum: OpenSim
Topic: Moment arms
Replies: 6
Views: 948

RE: Moment arms

Any of the plotted graphs should be able to be output to a .txt file. Bring your mouse on the plot itself, right click, and go to "export data." You'll get prompted to a screen where you can specify name/directory etc.

Hope this helps.
Travis
by Travis Peterson
Mon Jun 21, 2010 1:28 pm
Forum: OpenSim
Topic: Inverse Dynamics External Loads
Replies: 1
Views: 794

Inverse Dynamics External Loads

<t>Hello, I'm wondering what the default loading is for the Inverse Dynamics tool. In RRA and CMC, you are allowed to pick the body upon which your external load file acts upon, however in Inverse Dynamics I cannot seem to find anything in the GUI or the Setup file. Is there any default place or how...
by Travis Peterson
Tue Jun 08, 2010 11:46 am
Forum: OpenSim
Topic: Java fails upon RRA Setup
Replies: 5
Views: 718

RE: Java fails upon RRA Setup

Could you elaborate on saving it in the "latest version"? Should I just put the files in via the GUI, then save the settings? Or write the .xml setup file again manually with different tags, headers, etc.?
by Travis Peterson
Tue Jun 01, 2010 2:53 pm
Forum: OpenSim
Topic: Plotting Units
Replies: 1
Views: 2390

Plotting Units

<t>Quick question about the Plot tool. When you choose the muscle-tendon length (y-axis) and hip_rotation for the x-axis, what units do muscle-tendon (or any other) lengths come in? Is it standard in meters, or do the lengths come as a relative value compared against the 1.0 standard scale (which is...
by Travis Peterson
Tue Jun 01, 2010 1:23 pm
Forum: OpenSim
Topic: Java fails upon RRA Setup
Replies: 5
Views: 718

RE: Java fails upon RRA Setup

<t>Ayman -<br/> <br/> I can't seem to find the error dialog that you mentioned in your reply. I've looked in my C:\OpenSim 2.0 folder from where I installed and the folder I was opening the setup file from. I'll keep looking and hope to get that bug reported as soon as I can find it. Also, you menti...
by Travis Peterson
Tue Jun 01, 2010 12:10 pm
Forum: OpenSim
Topic: Java fails upon RRA Setup
Replies: 5
Views: 718

Java fails upon RRA Setup

When loading the RRA setup files I've created by editing the examples given, an error appears that says, "Java(TM) Platform SE binary has stopped working" wherein the program closes. Does anybody have any thoughts/ideas on how to fix this?
by Travis Peterson
Tue May 25, 2010 10:23 am
Forum: OpenSim
Topic: RRA and CMC for Non-Gait Activities
Replies: 0
Views: 87

RRA and CMC for Non-Gait Activities

<t>Hi,<br/> <br/> I'm working on a modified Head and Neck model. I have simulated (read: fake) external loads data that I've created to test viability in the OpenSim environment. I'm wondering if RRA and CMC can be retrofitted to something that isn't gait-like. In this case, the head acts something ...
by Travis Peterson
Thu Apr 29, 2010 1:44 pm
Forum: OpenSim
Topic: Tracking Marker Coordinates
Replies: 6
Views: 575

RE: Tracking Marker Coordinates

<t>I've tried to use this Analyze tool, but when I run the analysis, I get constant values for the kinematics. I input the global coordinates of the marker in question, and used the motion file I have (which is the time history of angle measurements of a flexion-extension activity). Is there somethi...
by Travis Peterson
Sun Apr 25, 2010 8:30 pm
Forum: OpenSim
Topic: Tracking Marker Coordinates
Replies: 6
Views: 575

Tracking Marker Coordinates

<t>Hi all,<br/> <br/> I would like to place a marker in my model and run a motion file that I've already described and then output the coordinates of the marker through the motion activity. Is this possible at all? I could convert VICON data, but this seems to be a hassle due to the conversion of re...