- Opensim-announcement - SimTK Mailing Lists

A New version of OpenSim software is now available
by opensim-announcement＠simtk.org 12 Feb '10

12 Feb '10

OpenSim 2.0.1 is now freely available for download at: https://simtk.org/home/opensim. The OpenSim software enables modeling and simulation of human and animal movement, including inverse dynamics analysis and forward dynamic simulation. This new version includes static optimization to estimate muscle and joint forces. OpenSim 2.0.1 also allows modeling of contact and includes an application programmer’s interface (API) that enables software developers to call OpenSim functions from their own programs or Matlab. A User’s Guide and a Developer’s Guide are also available. The software, models, and example simulations are available at the project website. The project site also includes tutorials to help you get started and a forum for the user community. Our goal is to develop and disseminate technology for accurate simulation of musculoskeletal dynamics and to accelerate its appropriate use in movement science. Since its introduction in 2007, nearly 4000 biomechanists have used OpenSim to develop, test and share biomechanical simulations of movement. Please feel free to contact me or any one on the project team if you would like more information. Best wishes - Scott Delp (for the OpenSim Development Team)

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A New version of OpenSim is now available
by opensim-announcement＠simtk.org 01 Sep '09

01 Sep '09

Dear OpenSim user, OpenSim version 1.9.1 is now available for download. OpenSim is freely available to the biomechanics research community and enables modeling and simulation of human and animal movement, including inverse dynamics analysis and forward dynamic simulation. The new version allows viewing, and transforming marker trajectories and ground reaction forces obtained from a motion capture system. It also adds a new analysis to compute Joint Reactions throughout a motion. The software, models, tutorials, and example simulations are available at the project website: https://simtk.org/home/opensim. Best regards, -Ayman Habib On behalf of Scott Delp and the OpenSim team.

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Upcoming OpenSim 2.0 Developers Workshop
by opensim-announcement＠simtk.org 06 Jul '09

06 Jul '09

A developer's workshop covering the upcoming release of the OpenSim 2.0 API will be held at Stanford University Wednesday-Friday, October 28-30, 2009. This an opportunity to learn about how OpenSim is constructed and how to build on this foundation to meet your research and laboratory goals. On the first day, a brief architectural overview of OpenSim and commonly used SimTK libraries (e.g. Simbody) will be provided. In particular, we will describe OpenSim model components such as bodies, joints, constraints, forces, and controllers and demonstrate how to assemble these components into working models in coding exercises in the form of small main programs. The second and third days will be devoted to building and interacting with models programmatically including the development of custom components and analysis plug-ins. For example, you might want to create a new joint based on your characterization of joint motion from MRI or fluoroscopy studies of the knee, shoulder etc... , or implement a new muscle model or optimization criteria. Additional options include applying multiple external loads and contact forces as well as writing your own controller. You will have the opportunity to work in small groups on your development goals with OpenSim developers. Please let us know which components of OpenSim you would like to see covered and what specific development objectives you will pursue. The success of the workshop highly depends on the specific development project you choose and the likelihood of completing it in the time alloted. We will ask you to present your goals and expected outcomes at the beginning of the workshop and to demo your code to the group at the end. Registration is limited to 10 developers. C++ or equivalent programming experience and a grasp of object-oriented concepts are required. We will limit the workshop to 10 participants, so please register soon. The registration page for this workshop is at http://simbios.stanford.edu/EventsOfInterest/OpenSim20AdvanceWorkshopOct09.… Best wishes, On Behalf of Scott Delp and the OpenSim team, -Ayman -- Ayman Habib, Ph.D. Stanford University, http://www.stanford.edu/group/nmbl/

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Upcoming OpenSim Workshops
by opensim-announcement＠simtk.org 03 Jul '09

03 Jul '09

Friends - A workshop covering advanced topics in OpenSim will be held at Stanford University Wednesday-Friday, August 12-14, 2009. It is an opportunity to learn more about how OpenSim works "under the hood" and get supervised, hands-on assistance with problems you bring to the workshop. On the first day, a conceptual overview of OpenSim will be provided. The second and third days will be devoted to working on problems that you bring to the workshop. For example, you might want to generate simulations from motion capture data collected in your lab, add arms to your gait model, write a new muscle model or controller, or analyze the results of your simulations. You will have the opportunity to work in small breakout groups with OpenSim experts on your research problems. The workshop depends on you bringing specific research and development projects that you will work on during the workshop. To better contour the workshop to fit your interests, please let us know what topics you would like to see covered and what problem you would like to bring to the breakout sessions. We will limit the workshop to 20 participants, so please register soon. The registration page for the OpenSim workshop is at http://simbios.stanford.edu/EventsOfInterest/OpenSimAdvanceWorkshopAug12-14… Best wishes, On Behalf of Scott Delp and the OpenSim team, -Ayman -- Ayman Habib, Ph.D. Stanford University, http://www.stanford.edu/group/nmbl/

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OpenSim 1.8 available
by opensim-announcement＠simtk.org 26 Jan '09

26 Jan '09

OpenSim version 1.8 is now available. OpenSim is freely available to the biomechanics research community and enables modeling and simulation of human and animal movement, including inverse dynamics analysis and forward dynamic simulation. The new version allows general purpose inverse dynamics and static optimization to estimate muscle forces. The software, models, tutorials, and example simulations are available at the project website: https://simtk.org/home/opensim. There are now over 2000 OpenSim users who are beginning to contribute models, simulations, and new capabilities to the software. Some new features in version 1.8 include the ability to: (i) build plug-ins that extend the capabilities of OpenSim, (ii) graphically define and edit mocap marker positions, (iii) define complex joints with constraints. If you are currently using an earlier version, I would encourage you to upgrade. Best wishes - Scott -- Scott L. Delp, Ph.D. Charles Lee Powell Professor Stanford University, Schools of Medicine & Engineering Clark Center, Room S-321 318 Campus Drive, Stanford CA 94305-5444 voice: 650.723.1230 http://www.stanford.edu/group/nmbl/ http://bioengineering.stanford.edu/

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OpenSim Workshops
by opensim-announcement＠simtk.org 20 Dec '08

20 Dec '08

Friends - We will hold our next OpenSim workshop January 14-16 on the Stanford campus. This workshop is intended for advanced users who would like to work directly with the OpenSim staff on specific research projects. On the first day of the workshop, an overview of OpenSim will be provided. The second and third days will be devoted to working on problems that you and other participants bring to the workshop. For example, you might want to generate simulations from motion capture data collected in your lab, add arms to your gait model, write a new muscle model or controller, or analyze the results of your simulations. You will have the opportunity to work in small breakout groups with OpenSim experts on your research problems. The workshop depends on you bringing specific projects that you will work on during the workshop. Registration is limited to 15 participants. The registration page for the OpenSim workshop is: http://simbios.stanford.edu/EventsOfInterest/OpenSimAdvanceWorkshopReg.htm We will be holding introductory OpenSim workshops at GCMAS in Denver, CO http://www.gcmas.org/conference and at the International Society of Biomechanics in Cape Town, South Africa http://www.isb2009.org/ Please let me know if you have any questions or comments. Best wishes - Scott -- Scott L. Delp, Ph.D. Charles Lee Powell Professor Stanford University, Schools of Medicine & Engineering Clark Center, Room S-321 318 Campus Drive, Stanford CA 94305-5444 voice: 650.723.1230 http://www.stanford.edu/group/nmbl/ http://bioengineering.stanford.edu/

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OpenSim 1.1
by opensim-announcement＠simtk.org 11 Dec '07

11 Dec '07

Dear OpenSim user- The OpenSim Team is pleased to announce the release of OpenSim 1.1, immediately available from the OpenSim project webpage at: https://simtk.org/project/xml/downloads.xml?group_id=91 OpenSim 1.1 contains substantial enhancements. You can check the list on the OpenSim wiki page at http://wiki.simtk.org/opensim/ChangeLog If you decide to migrate to OpenSim 1.1 then please note that you need to uninstall OpenSim 1.0. You can do this by selecting: All Programs -> OpenSim 1.0 -> Uninstall When installing OpenSim 1.1 please make sure to select the radio-button to (x) Add OpenSim to the system PATH for all users. when prompted during installation so that OpenSim can find the libraries it needs while running. The community support forum is located at https://simtk.org/forum/forum.php?forum_id=282 Please let us know your feedback, -The OpenSim Team.

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OpenSim Utilities Project
by opensim-announcement＠simtk.org 25 Sep '07

25 Sep '07

Dear OpenSim user, A new project has been created on simtk.org to provide utilities to help OpenSim users get started on using the software. To seed the project, a set of Matlab scripts to convert Motion Analysis motion capture data files (TRC/ANC) to formats supported by OpenSim were provided. The url for the project is: https://simtk.org/home/opensim-utils Please visit it and check it out if this sounds like something that would interest you, or if you have some utilities that you'd like to contribute that would be useful to the OpenSim user community at large. Please send comments/feedback or suggestions to the OpenSim user forum at https://simtk.org/forum/forum.php?forum_id=282 The OpenSim Team Disclaimer: No guarantees, or support promises are made regarding the scripts that are part of the opensim-utils project. Use at your own risk.

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