ILOCPLEXGOAL2(SemiContGoal,
IloNumVarArray, scVars,
IloNumArray, scLbs) {
IloInt besti = -1;
IloNum maxObjCoef = -IloInfinity;
IloInt i;
// From among all variables that do not respect their minimum
// usage levels, select the one with maximum objective coefficient.
for (i = 0; i < scVars.getSize(); i++) {
IloNum val = getValue(scVars[i]);
if ( val >= 1e-5 &&
val <= scLbs[i] - 1e-5 ) {
if ( getObjCoef(scVars[i]) >= maxObjCoef ) {
besti = i;
maxObjCoef = getObjCoef(scVars[i]);
}
}
}
// If any are found, branch to enforce the condition that
// the variable must either be 0.0 or greater than
// the minimum usage level.
if ( besti != -1 ) {
return AndGoal ( OrGoal ( scVars[besti] <= 0.0,
scVars[besti] >= scLbs[besti] ),
this );
}
else if ( !isIntegerFeasible() ) {
return AndGoal( BranchAsCplexGoal(getEnv()), this );
}
return 0;
}
void MtxLP::updateObjCoef(string col, double coef){
coef += getObjCoef(col);
setObjCoef(col, coef);
}
