Yeah you can combine both files into one file under a package and loadFile should work fine to load it. What is the error?

Yes optimize command accepts the qualified path.

Adeel.

Consider this:

package BangBangPkg

model BangBang "Model to verify that optimization gives bang-bang optimal control"

  Real a;

  Real v(start = 0, fixed=true);

  Real pos(start = 0, fixed=true);

  Real pow(min = -30, max = 30) = f * v ;

  input Real f(min = -10, max = 10);

equation

  der(pos) = v;

  der(v) = a;

  f = m * a;

end BangBang;

optimization optBangBang(objective=-pos)

  extends BangBang;

end optBangBang;

end BangBangPkg;

I have this in code in file BangBangPkg.mo, and the two models separately in BangBang.mo and optBangBang.mo.

If, in OMShell, I do

loadFile("BangBang.mo")

loadFile("optBangBang.mo")

optimize(optBangBang, numberOfIntervals=16, stopTime=1, tolerance=1e-8)

everything works well (and  list(BangBang) prints the rightcode).
If, on the contrary I issue

loadFile("BangBangPkg.mo")

I get false and list(BangBangPkg) prints nothing.

loadModel is a bit misnamed, a more accurate name would have been loadLibrary. That is to say, loadModel loads a library that can be found in the library path (e.g. loadModel(Modelica) will load the Modelica Standard Library). See the API documentation.

Anyway, most commands won't print any errors that occured, so you need to put getErrorString() after e.g. loadModel to get the actual reason for the failure.

I can load your model without any problem,

>> setCommandLineOptions("-g=Optimica")

true



>> loadFile("C:/Users/adeas31/Desktop/BangBangPkg.mo")

true



>> getClassNames()

{BangBangPkg}



>> getClassNames(BangBangPkg)

{BangBang,optBangBang}

Adeel.

Now I can read the package and ask optimisation using qualified paths.
Basically there was a mistake in the code: inside the model BangBang I used for failing tests I had inadvertently deleted the row

  parameter Real m = 1;

Since I also did not use
getErrorString() I did not realise this.

Thank you both.