Search found 33 matches

by Gregory Philips
Tue Oct 04, 2011 6:03 am
Forum: OpenSim
Topic: Static Optmization Constrain Violation = -1
Replies: 8
Views: 945

Re: Static Optmization Constrain Violation = -1

Alternatively since I have the velocity and acceleration at the joints recorded in my experimental data, would adding it to the .mot file solve the problem?
by Gregory Philips
Tue Oct 04, 2011 5:54 am
Forum: OpenSim
Topic: Static Optmization Constrain Violation = -1
Replies: 8
Views: 945

Re: Static Optmization Constrain Violation = -1

In the model I included the mass for the Humerus, Shadow Arm and Shadow hand as I wanted to concentrate the mass on those bodies.

Do I need to have a mass value for every body that is part of the motion (at the elbow and shoulder)?
by Gregory Philips
Wed Sep 28, 2011 2:43 pm
Forum: OpenSim
Topic: Static Optmization Constrain Violation = -1
Replies: 8
Views: 945

Re: Static Optmization Constrain Violation = -1

I have done so.
by Gregory Philips
Wed Sep 28, 2011 12:15 pm
Forum: OpenSim
Topic: Static Optmization Constrain Violation = -1
Replies: 8
Views: 945

Re: Static Optmization Constrain Violation = -1

Also when I run it, the model does not follow the input motion and direction while the Inverse Dynamics followed it. The muscles also dont stay connected to the bones but seem to extend well beyond the body of the model.
by Gregory Philips
Wed Sep 28, 2011 12:12 am
Forum: OpenSim
Topic: Static Optmization Constrain Violation = -1
Replies: 8
Views: 945

Static Optmization Constrain Violation = -1

Hi Ayman. I am running the modified model that you had helped me create previously, in version 2.4. It works and generates an ID output. However when I run Static Optimization on it, at everystep I get the message constraint violation = -1 #ND What does the error mean? I understand that large constr...
by Gregory Philips
Thu Jul 28, 2011 7:55 pm
Forum: OpenSim
Topic: A body between two joints.
Replies: 18
Views: 2624

RE: A body between two joints.

Opensim 2.3.1 startups up sometimes and at othertimes gives the error I mentioned previously.
by Gregory Philips
Thu Jul 28, 2011 7:51 pm
Forum: OpenSim
Topic: A body between two joints.
Replies: 18
Views: 2624

RE: A body between two joints.

<r>I installed Opensim 2.3.1 but during startup of the program I get this error:<br/> <br/> java.lang.AssertionError: WindowsAPI is required to be called from AWT thread only, see <URL url="http://www.netbeans.org/download/dev/javadoc/OpenAPIs/org/openide/doc-files/threading.html"><LINK_TEXT text="h...
by Gregory Philips
Sun Jul 17, 2011 8:43 pm
Forum: OpenSim
Topic: A body between two joints.
Replies: 18
Views: 2624

RE: A body between two joints.

I have attached the new file with the bug report.
by Gregory Philips
Thu Jul 14, 2011 5:46 am
Forum: OpenSim
Topic: A body between two joints.
Replies: 18
Views: 2624

RE: A body between two joints.

I am currently replacing all the fixed joints in the model with weldjoints. Will that solve the problem?
by Gregory Philips
Wed Jul 13, 2011 6:08 pm
Forum: OpenSim
Topic: A body between two joints.
Replies: 18
Views: 2624

RE: A body between two joints.

I didnt understand completely what you meant about the joint's deviation coordinate.