opensim-core

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Use either the `InverseDynamicsSolver` or Simbody's `calcResidualForceIgnoringConstraints` or `calcResidualForce` directly.

nickbianco

[Moco] Support tracking ground reaction moments and/or COPs

1

Currently, `MocoContactTrackingGoal` only supports tracking the ground reaction force vector and not ground reaction moments or centers of pressure. We can borrow some code from [`MocoUtilities::createExternalLoadsTableForGait()`](https://github.com/opensim-org/opensim-core/blob/98c70b1fd5bc74da63e69a52e860c742840a9a16/OpenSim/Moco/MocoUtilities.cpp#L277) for this.

nickbianco

OpenSense_CalibrateModel.py

1

Specs: OpenSim 4.4 Python 3.8.18 Anaconda 2022.10-Windows-x86_64 Windows 10 64 bit system I followed the directions under "Step-by-step instructions when using Anaconda with OpenSim 4.3+" on the opensim scripting in...

oYuzi

Train ChatGPT using Q&A from User's Forum and Confluence docs

1

Might help users find answers to common questions faster than using the Forum's search box (or asking questions that have already been answered). https://livechatai.com/blog/how-to-train-chatgpt-on-your-own-data

tkuchida

Inconsistency between orders of `model.getStateVariableNames()` and `State`

2

Hi, `model.getStateVariableNames` and `model.getStateVariableValues` return coordinates names and values in CoordinateSet order whereas `state.getQ`/`U`/`UDot` returns coordinates values in multibody tree order. It might make more sense if both of them...

mrrezaie

Output precision for different tools and files

2

1. Define output precision needs for different tools and files 2. Document what the goal is for each tool and file (either in a unified file or at the top...

carmichaelong

CMC and failing IPOPT

3

I have a model that fails with CMC in a way I don't understand. The model is not too complicated: - Joints: 1 slider, 4 pin, 2 custom (doing the...

SietseAchterop

If an initial guess is specified via a file (e.g., [MocoCasADiSolver::setGuessFile](https://github.com/opensim-org/opensim-core/blob/20752f3a7852854a3e95a0bf52832bc8ec788163/OpenSim/Moco/MocoCasADiSolver/MocoCasADiSolver.h#L215)), it will get saved to the `guess_file` property in the MocoStudy XML file. However, if the guess is set...

nickbianco

Add `SynergyController` for modeling muscle synergies

1

Add a new class `SynergyController` (derived from `Controller`) that enables modeling muscle synergies in OpenSim. This class will leverage OpenSim `Input`s to convert synergy activations from any type of input...

nickbianco

CMC does not work with some models.

5

This is a reformulation of issue #3345. There has been no response at all for half a year, and I am still stuck. Therefore I will try to reformulate it...

SietseAchterop