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Static Optimization analysis: Performance and Constraint Violation

Posted: Wed Jul 04, 2018 9:03 am

by rodmateus

Hello!

I have a question about the Static Optimization analysis.

At each time step, it is computed a "Performance" value and a "Constraint Violation" value.
What do both of these values mean?

Thank you in advance,

Rodrigo Mateus

Re: Rodrigo Mateus

Posted: Wed Jul 04, 2018 12:05 pm

by tkuchida

At each time step, it is computed a "Performance" value and a "Constraint Violation" value. What do both of these values mean?

The "Performance" value is described in Forum topic 9205 (viewtopicPhpbb.php?f=91&t=9205). The constraints are described on the "Getting Started with Static Optimization" page in the Confluence documentation (https://simtk-confluence.stanford.edu/d ... timization; specifically, see item 2 under "Troubleshooting"). The reported "Constraint" value is the 2-norm of the constraint vector computed by the StaticOptimizationTarget::constraintFunc() method (https://github.com/opensim-org/opensim- ... t.cpp#L536).