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SPECIFICTION
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Basix vs OpenSim

Basix

fenicsproject.org

OpenSim

opensim.stanford.edu

Side by side

FigureBasixOpenSim
Price fromFreeFree
Free planYesYes
Free trial——
Open source——
Windows—Yes
macOSYesYes
LinuxYesYes
API—Yes
Plans published11
Spec score · Physics Simulation Software7.6 (#53)8.7 (#6)
Free planYesYes
LicenseThe Basix source code is available under the MIT license.The GUI and API are open source under Apache 2.0, while models, examples, and plugins may have their own licenses.
PurposeBasix is a finite element definition and tabulation runtime library.OpenSim models humans, animals, robots, and the environment, and simulates their interaction and movement.
SupportUsers can report bugs through the GitHub issue tracker and ask usage questions on the FEniCS discourse group.OpenSim provides documentation, tutorials, and a discussion forum where users can seek help from experts.

Plans

Basix

  • Free / open sourceFree

Basix pricing →

OpenSim

  • OpenSimFree

OpenSim pricing →

In their own words

Basix

Basix has no write-up on Specifiction yet; its figures are above.

Visit fenicsproject.org

OpenSim

OpenSim models and simulates how humans, animals, robots, and their environment move and interact. Its graphical interface displays models and supports creating and analyzing simulations. Models can contain rigid bodies, joints, constraints, contact, muscles, and other actuators. Movement analysis tools include inverse kinematics, inverse dynamics, static optimization, and forward dynamics; Computed Muscle Control can generate muscle-driven forward simulations. The API is usable through Matlab, Python, Java, and C++, and GUI scripting uses an embedded Jython shell. Plugins can add analyses and model components, but must be built for the same OpenSim version and platform. The graphical interface is distributed for 64-bit Windows and Mac, while there is no public Linux GUI distribution; the API source can be built for Linux. OpenSim is free and open source under Apache 2.0, though models, examples, and plugins may have separate licenses. It is intended for research and teaching and welcomes academic and commercial applications. Documentation, tutorials, and a discussion forum are available. Downloading requires a SimTK account.

Visit opensim.stanford.edu