Lua Scripting

To automate the simulation, you can use Lua scripting with OMSimulator. More information about the lua scripting support can be found in the User Guide.

oms_setCommandLineOption("--suppressPath=true")
oms_setTempDirectory("./BouncingBall-lua/")
-- oms_setWorkingDirectory("./BouncingBall-lua/")
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 the following command:

OMSimulator.exe <script>.lua

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