OpenModelica FAQ

Version 2007-09-03.

Below are some frequently asked questions in three areas, with associated answers.

If you can't find your answer here please also check the searchable archive of our OpenModelicaInterest@ida.liu.se
mailing list in which we answer OpenModelica related questions.

OpenModelica General

            Why are not the MultiBody and Media libraries included in the OpenModelica distribution.
            These libraries need special features in the Modelica language which are not yet implemented in OpenModelica. We are working on it, but it will take some time.

            I did not find the graphic editor MathModelica Lite in the OpenModelica distribution. Where can I find it?
            You can download it via a link at the OpenModelica web site, e.g. the one placed under the OpenModelica Environment heading, Graphic Editor bullet.
            Also available at MathModelica Lite page hosted at Mathcore Engineering AB

            OpenModelica 1.4.3 does not read the MODELICAPATH environment variable, even though this is part of the Modelica Language Specification.
            Use the OPENMODELICALIBRARY environment variable instead. We have temporarily switched to this variable, in order not to interfere with other
            Modelica tools which might be installed on the same system. In the future, we might switch to a solution with a settings file, that also allows the user to turn
            on the MODELICAPATH functionality if desired.

            How do I enter multi-line models into OMShell since it evaluates when typing the Enter/Return key?
            There are basically three methods:
            1) load the model from a file using the pull-down menu or the loadModel command.
            2) Enter the model/function as one (possibly long) line.
            3) Type in the model in another editor, where using multiple lines is no problem, and copy/paste the model into
                OMShell as one operation, then push Enter. Another option is to use OMNotebook instead to enter and evaluate models.

            There is a problem at installation of OpenModelica 1.4.3 on Windowx XP – MicroSoft .NET Framework 1.1. missing
            Try the latest nightly build of OpenModelica.

OMDev - OpenModelica Development Environment

            I get problems compiling and linking some files when using OMDev with the MINGW (Gnu) C compiler under Windows.
            You probably have some Logitech software installed. There is a known bug/incompatibility in Logitech products. 
            For example, if LVprcsrv.exe (LV*.exe) is running, kill it and/or prevent it to start again at reboot;
            it does not do anything really useful, not needed for operation of web cameras or mice.