Search found 18 matches

by Mehran Razzaghi
Sun Jul 10, 2022 1:42 am
Forum: OpenSim
Topic: Mirror in plotting
Replies: 1
Views: 161

Mirror in plotting

Hi there,
I plotted the result of ID in my model and tried to compare it with the Rajagopal model, but in some sections of the graph became reverse.
I used rectify in the setting but it didn't work. How can I mirror it and overlap them in OpenSim plotting?
Thanks
by Mehran Razzaghi
Wed Apr 27, 2022 2:54 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

Re: distance between two points

Hi Nicos, Exactly, you are right. So, let's return to my first question and conclude this subject. I want to calculate the distance between two points, one in the femur and the other in the tibia. I used point kinematic to measure the distance. and I just inserted the knee flexion-extension coordina...
by Mehran Razzaghi
Tue Apr 26, 2022 12:58 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

Re: distance between two points

Yes, I just made a sample file with some different numbers. I attached the file. Because I just want to follow the femur and tibia, I just digited the 'knee_angle_r'. The time will be synchronized with the setting. I checked it. The question is why when I choose a point in 'body_name' femur there is...
by Mehran Razzaghi
Mon Apr 25, 2022 9:30 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

Re: distance between two points

Yes, I did. I define a '.mot' file in the main setting and defined the point kinematics according to the specified numbers. I attached the file screen of the setting and results. I don't know why there are no changes in the graph? Is it can be because of the proximity of the points to the femur or r...
by Mehran Razzaghi
Sun Apr 24, 2022 4:10 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

Re: distance between two points

Thanks a lot Nicos for your advice. It was really helpful. I did it, but there is something which I didn't get it. When I choose Femur as a body and select the ground as a relative to the body, after plotting, the states(0,1,2) didn't change and they are straight lines. is it related to my selected ...
by Mehran Razzaghi
Sat Apr 23, 2022 2:15 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

Re: distance between two points

Thanks Nicos for your prompt response. Ok. so, in the point kinematics analysis, first I should define a point in the femur. then I repeat it for the tibia. and for the global frame, do you mean I should select global in the 'relative_to_body_name' section, for each point? And for the point distance...
by Mehran Razzaghi
Fri Apr 22, 2022 2:04 am
Forum: OpenSim
Topic: distance between two points
Replies: 10
Views: 793

distance between two points

Hi there, I want to measure the distance between two points. I tried to do it with Point Kinematic. but there is just one point to define with respect to a body name. how can it implement? For example, if we have a point in the femur and the other one in the tibia, how can we measure the distance ch...
by Mehran Razzaghi
Mon Jan 03, 2022 2:40 am
Forum: OpenSim
Topic: Elastic foundation
Replies: 0
Views: 160

Elastic foundation

Hello, I have some questions about the elastic foundation issue. - I know the formulation of the elastic foundation force. But in Opensim, I become a bit confused. I want to know that where is the references of contact forces? I mean how we can define the references of the contact forces? for exampl...
by Mehran Razzaghi
Fri Nov 05, 2021 1:05 am
Forum: OpenSim
Topic: problem in adding a ligament as 'acl' to the a model
Replies: 9
Views: 688

Re: problem in adding a ligament as 'acl' to the a model

The expected contents/format of the .osim file depends on the "OpenSimDocument Version" number at the top. For example, if the version number is greater than 40000, then I believe the PathPoints need a "socket_parent_frame" property that provides the full path to the parent frame. For example: <Pat...
by Mehran Razzaghi
Tue Nov 02, 2021 5:43 am
Forum: OpenSim
Topic: problem in adding a ligament as 'acl' to the a model
Replies: 9
Views: 688

Re: problem in adding a ligament as 'acl' to the a model

Thanks a lot for your help. I tried the structure codes witch you mentioned. It was helpful an worked. The new ligament add to my model. but there is problem the ligaments movement. I mean when I move the knee-angler-r (in the coordinate tab) the body will move without ligaments. I attached the Gif ...