Search found 8 matches

by Guanxin Jiang
Fri Aug 19, 2016 2:59 am
Forum: OpenSim
Topic: try to modify model Arm26
Replies: 0
Views: 227

try to modify model Arm26

Hello, I am trying to modify model Arm26 elbow axis into unfixed one. But i met 2 problems: 1. the rotation axes of joint elbow are (0.04940001 0.03660001 0.99810825), (0 1 0), (0.99810825 0 -0.04940001), respectively. But the first two axes are not orthogonal, is this ok? 2. i try to add the code a...
by Guanxin Jiang
Tue Jul 19, 2016 2:27 am
Forum: OpenSim
Topic: elbow flexion axis
Replies: 2
Views: 299

Re: elbow flexion axis

Thx very much!
by Guanxin Jiang
Fri Jul 15, 2016 1:44 am
Forum: OpenSim
Topic: elbow flexion axis
Replies: 2
Views: 299

elbow flexion axis

Hello, i am a starter in OpenSim. i am working right now to modify the elbow part of the Arm26 model. My prof asked to change the elbow flexion axis from a fixed one to an unfixed one. Which means, when the arm slowly flexion and extension, the forearm rotates around an axis at distal humerus and th...
by Guanxin Jiang
Fri Jul 15, 2016 1:34 am
Forum: OpenSim
Topic: Rotation Axes
Replies: 8
Views: 2694

Re: Rotation Axes

Hello Stanev and Curreli, i saw the discussion between you two and it trully inspires me a lot. Right now i am working on modifying an elbow model arm26, which was shared on the website of opensim. My aim is to change the elbow flexion axis from a fixed one to an unfixed one when the arm does flexio...
by Guanxin Jiang
Fri Jul 15, 2016 1:06 am
Forum: OpenSim
Topic: How to can change the axis origin and orientation?
Replies: 8
Views: 1544

Re: How to can change the axis origin and orientation?

Hello, I met kind of similiar questions. I am a starter in OpenSim and i try to modify the arm26 model in my bachelor thesis. I mean in the original model, when the forearm does flexion movement, the axis in the elbow is fixed. Right now i want to modify it into unfixed axis when the arm does flexio...
by Guanxin Jiang
Wed Jun 08, 2016 4:32 am
Forum: OpenSim
Topic: building model via text editor
Replies: 1
Views: 252

building model via text editor

Hello everyone, Does somebody have the experience of build a .osim model only by text editor like Notepad++? I have tried to use OpenSim for two months, and i get stuck right now. I mean, without graphical modeling, i have to know every coordinate of every point on the bones and muscles. How can we ...
by Guanxin Jiang
Mon May 02, 2016 4:31 am
Forum: OpenSim
Topic: GeometrySet file
Replies: 1
Views: 213

GeometrySet file

Hello what is the difference between the file, for example, r_scaph.vtp and arm_r_scaphoid.vtp? i try to import both of these files, and it seems to me that scaphoid in these two files are just different size and different location. For that case, how can i get the precise location of these bones an...
by Guanxin Jiang
Tue Mar 29, 2016 5:27 am
Forum: OpenSim
Topic: add path in Matlab but shows error
Replies: 1
Views: 347

add path in Matlab but shows error

i am using OpenSim 3.3 and try to add path of opensim in matlab, using the file 'configureOpenSim' to configure the environment but shows like following: what can i do for next? C:\Program Files\MATLAB\R2014a\toolbox\local\pathdef.m: Cannot open file: permission denied. Warning: MATLAB did not appea...