How To Use

OMVis is in its infancy and therefore things change quite fast. Anyway, how it should be used:

In order to visualize a model which is represented by a 3d-scene, we need 2 things:

• a scene description file (a XML which stores the animation bodies and their properties mapped to some variables)
• a result file (.mat) or a FMU (.fmu) which stores or computes the values of the relevant variables.

Since OMVis is used for the interactive simulation of FMUs or the visualization of Modelica-based simulation results, a scene description generator is valuable. Hence, OpenModelica is able to output a scene-description file of a multi-body-system by setting the flag "+d=visxml". Basis is the application of the Modelica.Mechanics.MultiBody.* - elements which provide an animation.

When opening OMVis you can choose a model which should be animated. Choose a matfile model_res.mat and OMVIs is looking for a scene description of the name model_visual.xml in the same directory. If both can be loaded, the initial scene setting can be seen in the viewer.