Search found 52 matches

by Matthew Lee
Sun Mar 26, 2023 10:03 am
Forum: OpenSim
Topic: Questions about SimmSpline
Replies: 4
Views: 615

Re: Questions about SimmSpline

Dear Professor Ton, Thank you very much for your answer! It is a great honor for me to receive your advice!Your answer is wonderful and detailed, which is much more exciting than the textbooks I have read! From studying your answer, I believe I have a pretty clear understanding of cubic splines, tha...
by Matthew Lee
Thu Mar 23, 2023 1:56 pm
Forum: OpenSim
Topic: Questions about SimmSpline
Replies: 4
Views: 615

Questions about SimmSpline

Dear OpenSim development team and OpenSim users, Thank you all for your contributions to the biomechanics community! I have some questions about the class SimmSpline, I would appreciate it if anyone could give me some advice. 1. May I ask what is the meaning of SimmSpline() and the mathematical form...
by Matthew Lee
Mon Mar 13, 2023 1:42 pm
Forum: OpenSim Moco
Topic: Can't save solutions when using path constraint
Replies: 24
Views: 2050

Re: Can't save solutions when using path constraint

Hi Nick, I also encountered a problem like what Hojin pointed.When I use C++ to solve a problem which including the path constraint,if the convergence tolerance is not satisfied while the the Maximum Number of Iterations is acheived,the program will be interrupted and the Exception will be thrown as...
by Matthew Lee
Fri Mar 10, 2023 4:10 am
Forum: OpenSim Moco
Topic: Some questions about MocoOutputConstraint
Replies: 2
Views: 172

Re: Some questions about MocoOutputConstraint

Hi Nick,

Thanks for your guidance, your method works well, thank you!

Best Wishes,
Matthew
by Matthew Lee
Mon Mar 06, 2023 2:28 pm
Forum: OpenSim Moco
Topic: Some questions about MocoOutputConstraint
Replies: 2
Views: 172

Some questions about MocoOutputConstraint

Dear Moco development team and Moco users, Thank you all for your contributions to the biomechanics community! I have some questions about how to use MocoOutputConstraint, I would appreciate it if anyone could give me some advice. 1.I try to use the following codes in Visual Studio C++ to customize ...
by Matthew Lee
Fri Feb 24, 2023 11:16 am
Forum: OpenSim Moco
Topic: Some questions about the use method of Moco solver and the corresponding solution principle
Replies: 3
Views: 394

Some questions about the use method of Moco solver and the corresponding solution principle

Dear Moco development team and Moco users, Thank you all for your contributions to the biomechanics community! I have some questions about the use method of Moco solver and the corresponding solution principle, I would appreciate it if anyone could give me some advice. 1.I output the Moco solution r...
by Matthew Lee
Fri Feb 24, 2023 10:52 am
Forum: OpenSim Moco
Topic: Some questions about the transformation and customization of the objective function
Replies: 1
Views: 240

Some questions about the transformation and customization of the objective function

Dear Moco development team and Moco users, Thank you all for your contributions to the biomechanics community! I have some questions about the transformation and customization of the objective function in Moco, I would appreciate it if anyone could give me some advice. 1. Assume that m Moco goals wi...
by Matthew Lee
Thu Feb 23, 2023 12:38 pm
Forum: OpenSim Moco
Topic: Confused about some concepts in Moco
Replies: 5
Views: 735

Re: Confused about some concepts in Moco

2. 'muscle_power' is computed from tendon force and muscle-tendon velocity, and the other powers are computed from the constituent components of the muscle-tendon unit (all the power calculations are located here ). How large is the deviation? Hi Nick, Thanks for such a clear answer, I learned a lo...
by Matthew Lee
Thu Feb 23, 2023 12:16 pm
Forum: OpenSim Moco
Topic: Questions in using "EndpointConstraint" mode of MocoInitialOutputGoal/MocoFinalOutputGoal
Replies: 8
Views: 1341

Re: Questions in using "EndpointConstraint" mode of MocoInitialOutputGoal/MocoFinalOutputGoal

Hi Nick,

Thanks for your professional reply! Your answer is very clear and easy to understand, thanks again! By the way, I hope the bug is easy to fix.

Best Wishes,
Matthew
by Matthew Lee
Sun Feb 19, 2023 7:28 am
Forum: OpenSim Moco
Topic: Questions about Parallel Computing and Custom uneven time grid nodes
Replies: 1
Views: 141

Questions about Parallel Computing and Custom uneven time grid nodes

Dear Moco development team and Moco users, Thank you all for your contributions to the biomechanics community! I have some questions about Parallel Computing and Custom uneven time grid nodes in Moco, I would appreciate it if anyone could give me some advice. 1. If I want to run N (N>20) independent...