OMVIS is a tool to visualize and animate simulation models. It is meant to visualize models from different simulation tools. What shall be visualized is described in a XML file and the result files provide the corresponding data. Besides the animation of result files, there is a possibility to animate multibody systems with a FMU interactively.

OMVIS is developed by Volker Waurich and Martin Flehmig at TU Dresden. If you have questions concerning OMVIS or trouble using it, feel free to contact us via volker.waurich[at]tu-dresden.de.

OMVIS is open-source and released under GNU GENERAL PUBLIC LICENSE (v3.0). See the license file which comes with OMVIS or visit http://www.gnu.org/licenses/gpl.html for further information.

The principal documentation is generated from the source code by using Doxygen. Besides there is:

Volker Waurich: Multi-Body-System Visualisation and Interactive Real-Time Simulation of FMUs for OpenModelica based Simulation, OpenModelica Workshop 2016

OMVIS is concurrently developed and tested on Windows and Linux systems with the aim to support a wide variety of systems. Thus, we hope, that there will be a smooth configuration and build process for your system, too.

If you have any trouble, please let us know via volker.waurich[at]tu-dresden.de.

OMVIS, like most other software projects, builds up on a variety of other great software packages. In the following we give a list of all necessary dependencies and the version number, which is at least required.

0. CMake (Version >= 3.0.0)
    - https://cmake.org/
    - Linux: via Package Manager or build from source
    - Windows: Download and install binary from https://cmake.org/download/

1. C++ Compiler
    - support of C++ standard 2014 (-std=c++14)

2. SDL (Version >= 2.0.0) (zlib)
    - https://www.libsdl.org
    - Linux: via Package Manager --> libsdl2-dev
    - Windows: Download and install binary from https://www.libsdl.org/download-2.0.php

3. OpenSceneGraph (Version >= 3.4.0) (OSGPL/LGPL)
    - http://www.openscenegraph.org
    - Linux: via Package Manager --> libopenscenegraph-dev
    - Windows: 
        - Source http://www.openscenegraph.org/index.php/download-section/stable-releases, 
        - Dependencies http://www.openscenegraph.org/index.php/download-section/dependencies

4. FMI Library (Version >= 2.0) (BSD)
    - http://www.jmodelica.org/FMILibrary
    - Linux: Download sources, unzip, read FMILIB_Readme.txt, configure, make, install
    - Windows: download binaries
    - Its important to remember where FMIlibary is installed to. The installation path has to 
      be provided to the CMake script of OMVIS.

5. QT (Version >= 5.0) (LGPL)
    - Windows installer http://www.qt.io/

6. RapdiXml Library (Boost Software License or MIT)
    - http://rapidxml.sourceforge.net/
    - Download the header only library, extract and give the CMake script of OMVIS a hint to the 
      path via the environment variable RAPIDXML_ROOT.

7. read_matlab4.c and read_matlab4.h from OpenModelica (OSMC-PL, GPL v3.0)
    - https://github.com/OpenModelica/OMCompiler/tree/master/SimulationRuntime/c
    - 1. Case: OpenModelica is present/installed on the system. Specify the installation path 
               via the environment variable OPENMODELICHOME and the CMake script of OMVIS will 
               automatically find the files read_matlab.h and read_matlab.c, respectively.
    - 2. Case: Download the files read_matlab.h and read_matlab.c and pass their path to CMake
               via -DMATLABREADER=/PATH/TO/read_matlab.[h|c].

8. Boost C++ Libraries (Boost Software License)
    - http://www.boost.org/
    - Linux: via Package Manager
        --> libboost-filesystem-dev
        --> libboost-program-options-dev
        --> libboost-system-dev
        --> libboost-dev
    - Windows: build from source

In order to get a version of OMVIS, the repository is cloned via

~> git clone https://github.com/vwaurich/OMVis.git

Than, OMVIS can is configured for the particular system and the build process is invoked

~> cd OMVIS/
~> mkdir build && cd build
~> cmake -DFMILIB_HOME=/PATH/TO/FMILIB2/ -DRAPIDXML_ROOT=/PATH/TO/RAPIDXML/ ../
~> make OMVIS

OMVIS has successfully been build and tested on Windows 7 using msvc2015 Linux Mint 17 (Qiana) using GCC 6.2 and Clang 3.8.

-compile OSG and SDL2 from source using the same Compiler(msvc2015)

-added to additional dependencies: imm32.lib winmm.lib Ws2_32.lib version.lib

fmilib_shared.lib SDL2main.lib

It is quite easy to use OMVIS to visualize a simulation present in a FMU or MAT file:

1. Step: Run OMVIS by starting the executable.
2. Step: Open a model file by using the "File Open" dialog.
3. Step: Initialize the simulation.
4. Step: (If possible) Specify the input mapping to keyboard or joystick.
5. Step: Visualize the simulation by pressing "Start".

Moreover, OMVIS supports command line arguments. The following command will start OMVIS and load the FMU BouncingBall.fmu located in the examples folder into OMVIS

  ~> ./OMVIS --mode =BouncingBall.fmu --path=../examples/

In this case, the computation is done on a server while the visualization and steering of the simulation is handled on the local machine (localhost).

This functionality is under development.

Remarks:

• Visual XML file has to present in working directory

Alpha

• OMVIS currently only supports FMU 1.0. Support for the new standard FMU 2.0 needs to be added.
• The remote visualization in conjunction with ParallelFMU and NetworkOffloader library needs some more effort to make it stable.