// end of metrics
public RoutingSolutionObject(RoutingSolver routingSolver, Assignment solution)
{
_routingSolver = routingSolver;
_solution = solution;
ComputeSolutionData(_solution);
//SolutionToVehicleRouteMetrics(_solution);
MetricsContainer = new MetricsContainer();
RegisterAllMetrics();
}
public RoutingDataModel CreateInitialSimulationDataModel(bool allowDropNodes, Simulation.Simulation simulation)
{
var numberCustomers = simulation.Params.NumberInitialRequests;
var numberVehicles = simulation.Params.VehicleNumber;
Console.WriteLine(this.ToString() + "Creating new random DataModel for " + numberVehicles + " Vehicles and " + numberCustomers + " Customers, AllowDropNodes: " + allowDropNodes);
GenerateNewDataModelLabel:
List <Vehicle> dataModelVehicles = new List <Vehicle>();
List <long> startDepotsArrivalTime = new List <long>(numberVehicles);
//Creates two available vehicles to be able to perform flexible routing for the pdtwdatamodel
for (int i = 0; i < numberVehicles; i++)
{
var vehicle = new Vehicle(simulation.Params.VehicleSpeed, simulation.Params.VehicleCapacity, simulation.Context.Depot, simulation.Context.Depot);
dataModelVehicles.Add(vehicle);
startDepotsArrivalTime.Add(0);//startDepotArrival time = 0 for all the vehicles
}
var customersToBeServed = new List <Customer>();
List <Stop> excludedStops = new List <Stop>();
foreach (var vehicle in dataModelVehicles)
{
if (!excludedStops.Contains(vehicle.StartStop))
{
excludedStops.Add(vehicle.StartStop);
}
if (!excludedStops.Contains(vehicle.EndStop))
{
excludedStops.Add(vehicle.EndStop);
}
}
for (int i = 0; i < numberCustomers; i++) //generate 5 customers with random timeWindows and random pickup and delivery stops
{
var requestTime = 0;
var pickupTimeWindow = new int[] { requestTime, simulation.Params.SimulationTimeWindow[1] }; //the customer pickup time will be between the current request time and the end of simulation time
var customer = CustomerFactory.Instance().CreateRandomCustomer(simulation.Context.Stops, excludedStops, requestTime, pickupTimeWindow, false, simulation.Params.VehicleSpeed); //Generates a random static customer
customersToBeServed.Add(customer);
}
var indexManager = new DataModelIndexManager(dataModelVehicles, customersToBeServed, startDepotsArrivalTime);
var routingDataModel = new RoutingDataModel(indexManager, simulation.Params.MaximumRelativeCustomerRideTime, simulation.Params.MaximumAllowedDeliveryDelay);
var solver = new RoutingSolver(routingDataModel, allowDropNodes);
RoutingSearchParameters searchParameters = operations_research_constraint_solver.DefaultRoutingSearchParameters();
searchParameters.LocalSearchMetaheuristic = LocalSearchMetaheuristic.Types.Value.Automatic;
searchParameters.SolutionLimit = 1; //until it finds 1 solution
var solution = solver.TryGetSolution(searchParameters);
if (solution == null)
{
goto GenerateNewDataModelLabel;
}
return(routingDataModel);
}
