Search found 8 matches

by Wei Wang
Mon Oct 15, 2018 11:02 am
Forum: OpenSim
Topic: Differences of ID and IK in OpenSim 3.3 and 4.0
Replies: 6
Views: 378

Re: Differences of ID and IK in OpenSim 3.3 and 4.0

Hi Dimitar,Thanks for your explanation. I got it. :D
by Wei Wang
Mon Oct 15, 2018 3:56 am
Forum: OpenSim
Topic: Differences of ID and IK in OpenSim 3.3 and 4.0
Replies: 6
Views: 378

Re: Differences of ID and IK in OpenSim 3.3 and 4.0

Hi Dimitar,

The largest IK difference was mainly at the spine level, especial for L5_S1_ FE (around 9 degrees).

Wei
by Wei Wang
Mon Oct 15, 2018 3:28 am
Forum: OpenSim
Topic: Differences of ID and IK in OpenSim 3.3 and 4.0
Replies: 6
Views: 378

Re: Differences of ID and IK in OpenSim 3.3 and 4.0

Hi Dimitar,

Thanks for your reply! I have attached the model and the marker data. Could you check this for me?

Could I also ask for your understanding that after the post, the data would be removed due to data protection?

Wei
by Wei Wang
Fri Oct 12, 2018 7:28 am
Forum: OpenSim
Topic: Differences of ID and IK in OpenSim 3.3 and 4.0
Replies: 6
Views: 378

Differences of ID and IK in OpenSim 3.3 and 4.0

Hi all, I found the inverse dynamic result from the OpenSim 3.3 GUI and OpenSim 4.0 GUI are different when I use them to analyze the exactly same model and IK file(generated from OpenSim 3.3 GUI). The values are slightly different (e.g., around 0-2Nm). Moreover, when I use OpenSim 4.0 to calculate t...
by Wei Wang
Thu Sep 20, 2018 1:15 pm
Forum: OpenSim
Topic: Looking for an alternative function to addInStationForce in Matlab API.
Replies: 2
Views: 271

Re: Looking for an alternative function to addInStationForce in Matlab API.

Hi Colin,

Thanks for your quick reply! Good to know the method of transform, and I have solved my problem now. :D
by Wei Wang
Wed Sep 19, 2018 2:00 pm
Forum: OpenSim
Topic: Looking for an alternative function to addInStationForce in Matlab API.
Replies: 2
Views: 271

Looking for an alternative function to addInStationForce in Matlab API.

Hi all, I am using the calcResidualForceIgnoringConstraints function in Matlab API to get the joint torques, what I want to do is including the ExpressionBasedBushingForces as part of the appliedBodyForces. However, the forces I got from getRecordValues seemed to be applied at Bushing frames (in the...
by Wei Wang
Thu Dec 28, 2017 1:47 pm
Forum: OpenSim
Topic: C++ error ‘cannot instantiate abstract class’ when building the code of SpineBushing plugin (original for OpenSim v2.4)
Replies: 2
Views: 164

Re: C++ error ‘cannot instantiate abstract class’ when building the code of SpineBushing plugin (original for OpenSim v2

Hi, Sorry I forgot to say, the authors of SpineBushing element provided the compiled *.dll (Visual Studio Express 2010 using CMake2.8 for OpenSim version 2.4.0.). But no matter I loaded the plugin on OpenSim 2.4 or OpenSim 3.3, both of the message boxes said: ‘Error trying to load library SpineBushi...
by Wei Wang
Thu Dec 28, 2017 12:43 pm
Forum: OpenSim
Topic: C++ error ‘cannot instantiate abstract class’ when building the code of SpineBushing plugin (original for OpenSim v2.4)
Replies: 2
Views: 164

C++ error ‘cannot instantiate abstract class’ when building the code of SpineBushing plugin (original for OpenSim v2.4)

Dear all, I am trying to build a SpineBushing plugin ( https://simtk.org/projects/spinebushing). It was created for OpenSim 2.4, so I have to rebuild it for the current v3.3. However, I met errors like below. It seems that current OpenSim library does not support the old code anymore. Does anybody k...