Hello! 

This my first question to the community so I hope to do everything correctly! 

------------------------------
Samuele Viaro
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This recursive function should be able to display the "lines" of any n-dimensional matrix of float/IloNum element :

void displayNumMap(IloNumMap f) {
  if (f.getNbDim() == 1) {
    for (IloInt i = 1; i <= f.getSize(); i++) {
      cout << f.get(i) << " ";
    }
    cout << endl; 
  } else {
    for (IloInt i = 1; i <= f.getSize(); i++) {
      displayNumMap(f.getSub(i));
    }
  }
}

That function is called this way:

  IloOplElement ie = opl.getElement("alpha");
  displayNumMap(ie.asNumMap());

Philippe

Original Message:
Sent: Thu February 08, 2024 05:36 AM
From: Samuele Viaro
Subject: C++ CPLEX UBUNTU

Hello! 

This my first question to the community so I hope to do everything correctly! 

I have initialized "alpha" in my .mod file as follows:

float alpha[I0][I0][H][H];

execute 

{

  for (var i in I0)

    {

      for (var j in I0)

        {

          for (var p in H)

            {

               for (var q in H)

                 {

                   if (p==q)

                     {

                        alpha[i][j][p][q] = 0.0;

                     }

                   else if (q>p)

                     {

                        alpha[i][j][p][q] = 1.0;

                     }

                   else

                     {

                        alpha[i][j][p][q] = 2.0;

                     }

                 }

            }

        } 

    }

}

 

now I would like to access a value of alpha, e.g. alpha[0][1][0][1], in my .cpp file to check if the initialization is correct before solving the model with .solve(). 

In the IBM website it says that .getElement() can access all Elements... I have been able to access constants and 1D array but not the multidimensional array of my case. 

      IloNum i_temp = rc.getOplModel().getElement("alpha").asNumMap().get(1);

any suggestions ?

Thanks in advance

Sam

------------------------------
Samuele Viaro
------------------------------