The OpenModelica Project

Register yourself to get information about new releases.
Participate in the OpenModelicaInterest discussion forum.
Help us: get the latest source code or nightly-build and report bugs!
To learn about Modelica, read a book or a tutorial about Modelica:

Modelica Book
Modelica Tutorial

Release Notes, version 1.4.4 [2008-02-20]

Release Notes of the current available implementation (Version 1.4.4):

See: http://www.openmodelica.org
Many thanks to all who contributed and worked hard for this release!

Available Graphical Model Editors:

This release of OpenModelica can be used togheter with the graphic editor MathModelica Lite by MathCore Engineering AB.

This release can also be used with SimForge: Graphical and Textual Open Source Model Editor by Politecnico di Milano. Check the cool screenshot, the wiki and download.

The release has the following highlights:
See the OpenModelica Users Guide for more info.

Several Platforms Releases Available [Windows, Linux, Mac]:
- The whole OpenModelica environment, including both the compiler, OMShell and OMNotebook, is now available on all three major platforms: Windows, Linux, and Mac.
OpenModelica Compiler (OMC)
- Less memory consumption
- Support for if-equations
- Dynamic loading of functions
- Many bug fixes.
OpenModelica Shell (OMShell)
- Essentially the same OMShell as in previous release.
OpenModelica Notebook (OMNotebook)
- OMNotebook is a Mathematica style Notebook for Modelica where you can direclty write and simulate your models.
- The purpose of OMNotebook is to provide an advanced Modelica teaching tool.
- The OpenModelica release includes DrModelica package which provides all the examples from Peter Fritzson's book the "Principles of Object-Oriented Modeling and Simulation with Modelica 2.1".
- OMNotebook has a number of improvements, primarily in the plotting functionality and platform availability; including scalable plots, zooming, logarithmic plots, grids, etc.
OpenModelica Eclipse Plug-in (MDT)
- This release includes some bugfixes for MDT (version 0.7.2) and the associated MetaModelica debugger.
OpenModelica Development Environment (OMDev)
- A separate web page for OMDev (OpenModelica Development Environment).
- A pre-packaged OMDev zip-file with precompiled binaries for development under Windows using the mingw Gnu compiler from the Eclipse MDT plug-in.
  (Development is also possible using Visual Studio).
- A new tutorial and users guide for development in MetaModelica. See the Documentation section.
- Successful builds and tests of OMC under Linux, Solaris, Mac, Windows.
- Compilation speed improvements in the MetaModelica compiler.
  MetaModelica Users Guide is now part of the OMDev and OpenModelica release.
  The latest OMDev was released in 2007-07-13.
The Open Source Modelica Consortium (OSMC) License for the source code.

News

2008-02-13

OpenModelica Development Server
running on CodeBeamer platform from Intland

2008-01-11

OSMC Workshop: January 21-23, 2008

Changed to OSMC License

2007

12-04 Open Source Modelica Consortium (OSMC)
was founded!

09-03 Added FAQ Page.

08-28 OpenModelica Developers Course,
August 30-31, Linköping, Sweden.

07-13 OpenModelica 1.4.3 Release

07-13 Download Windows/Linux/Mac binaries!

07-13 OpenModelica 1.4.3 Source Released

07-13 For people with SVN problems

2006

11-29 OpenModelica Subversion Statistics

10-02 OpenModelica 1.4.2 Released

06-19 OpenModelica 1.4.1 Released

05-21 OpenModelica 1.4.0 Released

03-25 OpenModelica 1.3.2 Released

2005

11-29 OpenModelica 1.3.1 Released

10-11 OpenModelica 1.3.0 Released

Research

Visit the Modelica related research pages at Programming Environments Laboratory (PELAB).
Visit the index of our research publications.
Try Google Scholar: Modelica+PELAB.
To learn more about Modelica, read a book about Modelica written by Peter Fritzson.
Alternatively you can read the Modelica Language Specification or other Modelica publications.

OpenModelica Environment (subsystems and approximate release dates)

OMC, The Modelica Compiler/Interpreter – released Now
OMShell, The Interactive Session Handler – released Now
OMNotebook, DrModelica Simple Electronic notebook – released Now.
Graphic Model Editor – more information
Modelica Development Tooling (MDT) as Eclipse Plugin – available here
Modelica XML conversion – available here.
Debugger for extended subset algorithmic code – released now

The current OpenModelica release contains the OMC Compiler/Interpreter, OMShell, OMNotebook.
Modelica Development Tooling (MDT) releases are separate from OpenModelica releases.

There are known bugs and limitations in several of these tools (see the implementation status and our open bugs).

Download

OpenModelica 1.4.4, is available for download.

Download Windows/Linux/Mac installation binaries.
In Windows, please choose a path that has no spaces in it for installation or use the path suggested by the installer

Modelica Development Tooling (MDT) for Eclipse

0.7.1 version of the Modelica is now available as an Eclipse plugin installation/update site.
Follow Modelica Development Tooling (MDT) for installation instructions.
Please read Users Guide for installation instructions or follow the link above.

Graphical Model Editor by MathCore Engineering AB

Download Grapical Model Editor

Download source

Note: We really encourage Linux users to use the LATEST sources from the Subversion repository
instead of the zipped source package or the tagged release as it has many bug fixes
between releases
Get the OpenModelica source code version 1.4.4 from our Subversion repository or from here.
Anonymous read access is allowed with user: anonymous and pass: none.
```
  svn co https://openmodelica.ida.liu.se/svn/OpenModelica/tags/OPENMODELICA_1_4_4
  
```

Nightly-Builds

We provide also experimental nightly-builds for both Windows and Linux between releases.
Using the latest builds and reporting bugs provides us with valuable feedback.
Some of the bugs reported could be already fixed in the nightly-builds.

Subversion repository access

We provide also anonymous read access to our Subversion repository.
Get the latest source code!
Using the latest source code and reporting bugs provides us with valuable feedback.
Anonymous read access is allowed with user: anonymous and pass: none.
```
  svn co https://openmodelica.ida.liu.se/svn/OpenModelica/trunk/
```

Relocate your working copy to the new repository URL

If you have a working copy you will need to relocate it. Please DO A BACKUP OF YOUR WORKING COPY
before you relocate it to the new Subversion URL to be sure you still have it if something goes wrong
(it shouldn't but never know).
In Windows (TortoiseSVN):
Right Click on your working copy directory choose TortoiseSVN->Relocate and then give new URL:
https://openmodelica.ida.liu.se/svn/OpenModelica/trunk
Of course, if you have branches the URL is different, then just append last part of the working copy
URL (from "OpenModelica" until the end) to: https://openmodelica.ida.liu.se/svn/ <- OpenModelica/...

In Linux use: svn switch --relocate:
While you are in your working copy top directory:

  $ svn switch --relocate svn://mir20.ida.liu.se/modelica/OpenModelica/trunk \
                          https://openmodelica.ida.liu.se/svn/OpenModelica/trunk .
  $ svn update

Visual Instructions for checking out OpenModelica Sources

Checkout sources using Tortoise SVN on Windows:

Enter the OpenModelica Subversion URL:

Enter your user/pass (CodeBeamer registered users can use their user/pass here):

Explore

The Directory Structure which contains nightly builds or older releases.

Documentation

Help us get better! Report bugs

Help us improve OpenModelica! Report bugs!

Frequently Asked Questions

Check out our FAQ if you have problems.

Licensing

OpenModelica is available for any use (academic or commercial) under Open Source Modelica Consortium (OSMC) License conditions.

Registration

Please register if you download and install Open Modelica. Why?
We would like to inform you about new releases of Open Modelica!
We want be informed who is using it and the kind of usage.
Your information will be not be distributed to third parties!
Note: It may take a while to be registered as we check the
information we receive to fight the spam on our mailing lists.
Thank you for your patience.

Discussion Forum

The OpenModelicaInterest [at] ida.liu.se forum is a general discussion email
list concerning OpenModelica, its usage, experience, mutual advice, etc.
You will need to become a list memeber before sending emails!
To become a member, send an Email to majordomo [at] ida.liu.se containing the single line:

SUBSCRIBE OpenModelicaInterest

This forum is archived and searchable on Mail Archive and Gmane.

Contact

For OpenModelica usage, experience, advice, bugs, etc. please use OpenModelicaInterest forum!

For any other issues please use: OpenModelica [at] ida.liu.se

OpenModelica Subversion Statistics

www.ohloh.net statistics for OpenModelica:

We have generated statistics for our OpenModelica Subversion repository.
Click on the picture below or here for more information.

OpenModelica Development Server

The new OpenModelica Development platform is

Last Update

Last updated Thursday, November 20, 2008 by Adrian Pop [adrpo (at) ida.liu.se].
Please contact Adrian Pop for problems and suggestions regarding this site.

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