public void InitializeFlexibleSimulation(bool allowDropNodes)
{
var dataModel = DataModelFactory.Instance().CreateInitialSimulationDataModel(allowDropNodes, this);
if (dataModel != null)
{
RoutingSolver routingSolver = new RoutingSolver(dataModel, false);
var printableList = dataModel.GetSettingsPrintableList();
foreach (var tobePrinted in printableList)
{
Console.WriteLine(tobePrinted);
}
//dataModel.PrintDataStructures();
Assignment timeWindowSolution = null;
RoutingSearchParameters searchParameters =
operations_research_constraint_solver.DefaultRoutingSearchParameters();
searchParameters.FirstSolutionStrategy =
FirstSolutionStrategy.Types.Value.ParallelCheapestInsertion;
searchParameters.LocalSearchMetaheuristic = LocalSearchMetaheuristic.Types.Value.TabuSearch;
searchParameters.TimeLimit = new Duration {
Seconds = 20
};
timeWindowSolution = routingSolver.TryGetSolution(searchParameters);
RoutingSolutionObject routingSolutionObject = null;
if (timeWindowSolution != null)
{
routingSolver.PrintSolution(timeWindowSolution);
routingSolutionObject = routingSolver.GetSolutionObject(timeWindowSolution);
for (int j = 0; j < routingSolutionObject.VehicleNumber; j++) //Initializes the flexible trips
{
var solutionVehicle = routingSolutionObject.IndexToVehicle(j);
var solutionVehicleStops = routingSolutionObject.GetVehicleStops(solutionVehicle);
var solutionTimeWindows = routingSolutionObject.GetVehicleTimeWindows(solutionVehicle);
var solutionVehicleCustomers = routingSolutionObject.GetVehicleCustomers(solutionVehicle);
InitializeVehicleFlexibleRoute(solutionVehicle, solutionVehicleStops, solutionVehicleCustomers, solutionTimeWindows);
}
}
}
Simulate();
}
public void Test(RoutingDataModel dataModel, bool dropNodes) //tests the algorithm using different maxUpperBound values until it finds the earliest feasible maxupperbound value, then saves its metrics
{
Console.WriteLine(this.ToString() + " testing algorithm: " + Name + " (Search time: " + SearchTimeLimitInSeconds + " seconds)");
DataModel = dataModel;
Solver = new RoutingSolver(dataModel, dropNodes);
var watch = Stopwatch.StartNew();
var solution = GetSolution();
_hasBeenTested = true;
watch.Stop();
var elapsedSeconds = watch.ElapsedMilliseconds * 0.001;
SolutionIsFeasible = solution != null;
if (SolutionIsFeasible) //solution != null (means earliest feasible solution was found)
{
//Saves the important metrics for the earliest feasible solution
MaxUpperBoundInMinutes = (int)TimeSpan.FromSeconds(Solver.MaximumDeliveryDelayTime).TotalMinutes;
ComputationTimeInSeconds = elapsedSeconds;
Solution = solution;
Solver.PrintSolution(solution);
}
}
