Originally posted by: NicoGDFSUEZ

Hi everybody,
I have in my .mod file :

tuple T{int a; int b;};
{T} SetOfT = ...;
dvar float+ xSetOfT;

Then I want to access in my c# file to the value of x.
If x would be indexed by integer, I would have used for example model.GetElement( "x" ).AsNumMap().Get(0)

But I do not find how to do this when x is indexed by a set of tuple.
Can someone help me ?? (even in c++ or java)
#DecisionOptimization
#OPLusingCPLEXOptimizer

For example in the delivered example iterators.cs

if you add

rc.Cplex.Solve();
INumVarMap trans = opl.GetElement("Trans").AsNumVarMap();

// Iterate through the TupleSet.
IEnumerator it3 = Routes.GetEnumerator();
while (it3.MoveNext())
{
ITuple t = ((ITuple)it3.Current);
string p = t.GetStringValue("p");
string o = t.GetStringValue("o");
string d = t.GetStringValue("d");
Console.Out.WriteLine("for route = " + p + " "o" "d " : "+rc.Cplex.GetValue(trans.Get(t)));
}

then you will get all the values of the dvar Trans for all values from the tuple set Routes

Alex
#DecisionOptimization
#OPLusingCPLEXOptimizer

Originally posted by: NicoGDFSUEZ

Thank you for your answer.
It was not exactly what I looked for because I wanted the value of the variable for a particular tuple.
I finally find the answer :

var variable = model.GetElement( "x" ).AsNumMap();
var tupleSet = model.GetElement( "SetOfT" ).AsTupleSet();
var tuple = tupleSet.MakeTupleBuffer( 0 );
tuple.SetIntValue(0, 3);
tuple.SetIntValue(1, 3);
var tupleReal = tupleSet.Find( tuple );
var result = variable.Get( tupleReal );

With this code, I obtain the value of "x" for the tuple {a = 3, b = 3}.
However, I am not totally satisfied with the cplex/opl API : in my opinion, it would be very useful to be able to create a tuple from its schema obtained by model.GetElement( "T" ).AsTupleSchema() instead of using the tuple set "SetOfT"

If anyone of Ilog/IBM could see my post... ;)
#DecisionOptimization
#OPLusingCPLEXOptimizer