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Software Details:
Version: 2013
Upload Date: 12 Dec 14
Distribution Type: Freeware
Downloads: 4
Size: 8591 Kb

Rating: 4.0/5 (Total Votes: 1)

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GaitSym is a forward dynamic modelling program. What that means is that you specify the forces and the program uses Newton's Laws to calculate the movements. You can download it from here including a range of human and non-human 2D and 3D models to get you started. It uses the Open Dynamics Engine physics engine to do most of the hard work and provides a file format and display system so the user does not have to do any programming. It also provides various muscle models so that the forces can be generated directly from muscle activation levels and a number of hooks to allow it to be used with global optimisation tools such as genetic algorithms. Its main features are: Fast, Flexible and Robust Forward Dynamic Modeller; Sophisticated Contact System; Minetti-Alexander and Umberger-Gerritsen-Martin Muscle Models for Metabolic Cost Estimation; Via Points and Cylinder Wrapping for Muscle Paths; Inertial Tensor Calculated from Triangular Mesh Outline; World or Local Coordinate Systems for Efficient Model Creation. Full Source Code Included (C++ compiles on MacOSX, Windows, Linux and other Unix systems); Complete with a Variety of Human and Non-human 2D and 3D models; Produces High Quality Stills and Animations via External Ray-tracing.

What is new in this release:

- New slider joint
- New muscle model including tendon damping, activation kinetics, non-linear spring response, and better numerical stability
- New box car drivers
- New box geom
- New muscle strap that can wrap round two parallel cylinders
- Direct point cloud visualisation
- Abort on excessive hinge joint limit torques, or on data target thresholds
- The tracking position can be offset to centralise tracked simulations

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