Originally posted by: Paul_Diaz

Hi,

I'm working on a project where I need to access decision variable values. They are represented as dvar int+ work[A][B][C], where A, B and C are range types.

At the moment, I've written the following code that presents some errors.

if (cplex.solve())  {
                    IloIntMap var = opl.getElement("works").asIntMap();
                    IloIntRange s1 = opl.getElement("A").asIntRange();
                    IloIntRange s2 = opl.getElement("B").asIntRange();
                    IloIntRange s3 = opl.getElement("C").asIntRange();
                    for (int i  = 1; i <= s1.getSize(); i++ )        {
                        IloIntMap sub = var.getSub(i);
                        for (int j = 1; j <= s2.getSize(); j++)      {
                                sub = var.getSub(j);
                                for (int k = 1; k <= s3.getSize(); k++)      {
                                        int bl = sub.get(k);
                                        System.out.println(bl);
                                }
                        }
                    }
                }

The code presents errors. Can anyone help me with this final part?

Thanks.

Paul.
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: SystemAdmin

I would do something like:

if (cplex.solve()) 
{ IloIntVarMap var = opl.getElement(
"works").asIntVarMap(); IloIntRange s1 = opl.getElement(
"A").asIntRange(); IloIntRange s2 = opl.getElement(
"B").asIntRange(); IloIntRange s3 = opl.getElement(
"C").asIntRange(); 

for (

int i = s1.getLB(); i <= s1.getUB(); i++ )       
{ 

for (

int j = s2.getLB(); j <= s2.getUB(); j++)       
{ 

for (

int k = s3.getLB(); k <= s3.getUB(); k++)       
{ IloIntVar x = var.getSub(i).getSub(j).get(k); 

int bl = cplex.getValue(x); System.out.println(bl); 
} 
} 
} 
}

or

IloOplFactory oplF = 

new IloOplFactory(); ... 

if (cplex.solve())      
{ IloIntVarMap var = opl.getElement(
"works").asIntVarMap(); IloIntRange s1 = opl.getElement(
"A").asIntRange(); IloIntRange s2 = opl.getElement(
"B").asIntRange(); IloIntRange s3 = opl.getElement(
"C").asIntRange(); IloMapIndexArray indices = oplF.mapIndexArray(3); 

for (

int i = s1.getLB(); i <= s1.getUB(); i++ )     
{ indices[0] = i; 

for (

int j = s2.getLB(); j <= s2.getUB(); j++)      
{ indices[1] = j; 

for (

int k = s3.getLB(); k <= s3.getUB(); k++)      
{ indices[2] = k; IloIntVar x = var.getAt(indices); 

int bl = cplex.getValue(x); System.out.println(bl); 
} 
} 
} 
}

#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: Paul_Diaz

Hey Vincent, I tried what you've suggested, but I changed x type and commented one line. Look, what do you think? I think it's ok.

if (cplex.solve())  {
                    IloIntMap var = opl.getElement("variavel").asIntMap();
                    IloIntRange s1 = opl.getElement("M").asIntRange();
                    IloIntRange s2 = opl.getElement("tamDeX").asIntRange();
                    IloIntRange s3 = opl.getElement("tamDeY").asIntRange();
                    for (int i = s1.getLB(); i <= s1.getUB(); i++ )  {
                        for (int j = s2.getLB(); j <= s2.getUB(); j++)       {
                                for (int k = s3.getLB(); k <= s3.getUB(); k++)       {
                                                int x = var.getSub(i).getSub(j).get(k);
                                                //int bl = cplex.getValue(x);
                                                System.out.println("variavel["+i+"]["+j+"]["+k+"] = " + x);
                                }
                        }
                    }
                        result = opl.getCplex().getObjValue();
                }

#DecisionOptimization
#OPLusingCPLEXOptimizer