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java macro to set angle of attack

Hi everyone,

I am trying to script a macro that lets me set the angle of attack in my simulation through the command line before running it, but I am struggling to wrap my head around the -jvmargs option.

To be precise, I would like to change the value 14.0 in the following line of the macro to an arbitrary value that I can input from the command line
-> scalarGlobalParameter_0.getQuantity().setValue(14. 0);

Would this be the proper way to parse a "newaoa" value of 10 deg to the macro?
-> starccm+ -power -batch change_aoa.java -jvmargs -Dnewaoa=10.0 -np 1 testsim.sim

And how would I need to change the line from the macro to use that new aoa?

Does anybody here have some experience with similar cases? I would really appreciate the help :)

BR!

I figured it out now and thought I'd post a minimum working example for anyone stumbling over the same problem in the future:

Code:

// Simcenter STAR-CCM+ macro: change_aoa.java

// Written by Simcenter STAR-CCM+ 16.02.009

package macro;



import java.util.*;



import star.common.*;

import star.base.neo.*;



public class change_aoa extends StarMacro {



  public void execute() {

    execute0();

  }



  private void execute0() {

        

    Simulation simulation_0 = 

      getActiveSimulation();



    ScalarGlobalParameter scalarGlobalParameter_0 = 

      ((ScalarGlobalParameter) simulation_0.get(GlobalParameterManager.class).getObject("aoa"));



        String newaoa = System.getProperty("newaoa");



        Double x =         Double.parseDouble(newaoa);



    scalarGlobalParameter_0.getQuantity().setValue(x);



    Units units_0 = ((Units) simulation_0.getUnitsManager().getObject("deg"));



    scalarGlobalParameter_0.getQuantity().setUnits(units_0);

  }

}

the syntax to input the angle of attack from the command line is:

Code:

starccm+ -power -podkey <podkey> -licpath <licpath> -batch change_aoa.java -jvmargs -Dnewaoa=8 testsim.sim