public IVariable Set(IMilpManager milpManager, ConstraintType type, IVariable leftVariable,
IVariable rightVariable)
{
switch (type)
{
case ConstraintType.Equal:
milpManager.SetEqual(leftVariable, rightVariable);
leftVariable.ConstantValue = rightVariable.ConstantValue ?? leftVariable.ConstantValue;
rightVariable.ConstantValue = leftVariable.ConstantValue ?? rightVariable.ConstantValue;
break;
case ConstraintType.LessOrEqual:
milpManager.SetLessOrEqual(leftVariable, rightVariable);
break;
case ConstraintType.GreaterOrEqual:
milpManager.SetGreaterOrEqual(leftVariable, rightVariable);
break;
case ConstraintType.LessThan:
milpManager.Operation(OperationType.IsLessThan, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
case ConstraintType.GreaterThan:
milpManager.Operation(OperationType.IsGreaterThan, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
case ConstraintType.NotEqual:
milpManager.Operation(OperationType.IsNotEqual, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
default:
throw new InvalidOperationException("Cannot set constraint");
}
return leftVariable;
}
public IVariable Set(IMilpManager milpManager, ConstraintType type, IVariable leftVariable,
IVariable rightVariable)
{
switch (type)
{
case ConstraintType.Equal:
milpManager.SetEqual(leftVariable, rightVariable);
leftVariable.ConstantValue = rightVariable.ConstantValue ?? leftVariable.ConstantValue;
rightVariable.ConstantValue = leftVariable.ConstantValue ?? rightVariable.ConstantValue;
break;
case ConstraintType.LessOrEqual:
milpManager.SetLessOrEqual(leftVariable, rightVariable);
break;
case ConstraintType.GreaterOrEqual:
milpManager.SetGreaterOrEqual(leftVariable, rightVariable);
break;
case ConstraintType.LessThan:
milpManager.Operation(OperationType.IsLessThan, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
case ConstraintType.GreaterThan:
milpManager.Operation(OperationType.IsGreaterThan, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
case ConstraintType.NotEqual:
milpManager.Operation(OperationType.IsNotEqual, leftVariable, rightVariable)
.Set(ConstraintType.Equal, milpManager.FromConstant(1));
break;
default:
throw new InvalidOperationException("Cannot set constraint");
}
return(leftVariable);
}
