Python Scripting

To automate the simulation, you can use Python scripting with OMSimulator. More information about the python api can be found in the User Guide.

from OMSimulator import OMSimulator

oms = OMSimulator()
oms.newModel("model")
oms.addSystem("model.root", oms.system_sc)
oms.addSubModel("model.root.BouncingBall", "BouncingBall.fmu")

oms.setResultFile("model", "results.mat")

oms.instantiate("model")
oms.initialize("model")
oms.simulate("model")
oms.terminate("model")
oms.delete("model")

Run the script using:

OMSimulatorPython3.bat <script>.py

Example output:

info:    maximum step size for 'model.root': 0.001000
info:    Result file: results.mat (bufferSize=1)
info:    Final Statistics for 'model.root':
         NumSteps = 552 NumRhsEvals  = 557 NumLinSolvSetups = 32
         NumNonlinSolvIters = 556 NumNonlinSolvConvFails = 0 NumErrTestFails = 1

The result file can be plotted using OMEdit, OMPlot, or any other tool that supports .mat or .csv files. OpenModelica includes OMPlot, a simple tool for quickly visualizing result files:

OMPlot.exe --plotAll --filename=results.mat