public VRPEvaluation EvaluateTour(IVRPProblemInstance instance, Tour tour, IVRPEncoding solution)
{
VRPEvaluation evaluation = CreateTourEvaluation();
EvaluateTour(evaluation, instance, tour, solution);
return(evaluation);
}
protected virtual void SetResultParameters(VRPEvaluation tourEvaluation)
{
QualityParameter.ActualValue.Value = tourEvaluation.Quality;
VehcilesUtilizedParameter.ActualValue.Value = tourEvaluation.VehicleUtilization;
DistanceParameter.ActualValue.Value = tourEvaluation.Distance;
PenaltyParameter.ActualValue.Value = tourEvaluation.Penalty;
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution) {
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double distance = 0.0;
double quality = 0.0;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++) {
int start = 0;
if (i > 0)
start = tour.Stops[i - 1];
int end = 0;
if (i < tour.Stops.Count)
end = tour.Stops[i];
//drive there
double currentDistace = instance.GetDistance(start, end, solution);
distance += currentDistace;
StopInsertionInfo stopInfo = new StopInsertionInfo(start, end);
tourInfo.AddStopInsertionInfo(stopInfo);
}
//Fleet usage
quality += instance.FleetUsageFactor.Value;
//Distance
quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
tourInfo.Quality = quality;
eval.Quality += quality;
}
protected override void SetResultParameters(VRPEvaluation tourEvaluation)
{
base.SetResultParameters(tourEvaluation);
TardinessParameter.ActualValue.Value = (tourEvaluation as CVRPTWEvaluation).Tardiness;
TravelTimeParameter.ActualValue.Value = (tourEvaluation as CVRPTWEvaluation).TravelTime;
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution) {
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour))); ;
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHomogenousCapacitatedProblemInstance cvrpInstance = instance as IHomogenousCapacitatedProblemInstance;
DoubleArray demand = instance.Demand;
double delivered = 0.0;
double overweight = 0.0;
double distance = 0.0;
double capacity = cvrpInstance.Capacity.Value;
for (int i = 0; i <= tour.Stops.Count; i++) {
int end = 0;
if (i < tour.Stops.Count)
end = tour.Stops[i];
delivered += demand[end];
}
double spareCapacity = capacity - delivered;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++) {
int start = 0;
if (i > 0)
start = tour.Stops[i - 1];
int end = 0;
if (i < tour.Stops.Count)
end = tour.Stops[i];
//drive there
double currentDistace = instance.GetDistance(start, end, solution);
distance += currentDistace;
CVRPInsertionInfo stopInfo = new CVRPInsertionInfo(start, end, spareCapacity);
tourInfo.AddStopInsertionInfo(stopInfo);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
if (delivered > capacity) {
overweight = delivered - capacity;
}
(eval as CVRPEvaluation).Overload += overweight;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourInfo.Penalty = penalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
public virtual VRPEvaluation Evaluate(IVRPProblemInstance instance, IVRPEncoding solution)
{
VRPEvaluation evaluation = CreateTourEvaluation();
foreach (Tour tour in solution.GetTours())
{
EvaluateTour(evaluation, instance, tour, solution);
}
return(evaluation);
}
public override IOperation InstrumentedApply()
{
InitResultParameters();
VRPEvaluation evaluation = CreateTourEvaluation();
IVRPEncoding solution = VRPToursParameter.ActualValue;
foreach (Tour tour in solution.GetTours())
{
EvaluateTour(evaluation, ProblemInstance, tour, solution);
}
SetResultParameters(evaluation);
QualityParameter.ActualValue = new DoubleValue(evaluation.Quality);
return(base.InstrumentedApply());
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution)
{
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double distance = 0.0;
double quality = 0.0;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++)
{
int start = 0;
if (i > 0)
{
start = tour.Stops[i - 1];
}
int end = 0;
if (i < tour.Stops.Count)
{
end = tour.Stops[i];
}
//drive there
double currentDistace = instance.GetDistance(start, end, solution);
distance += currentDistace;
StopInsertionInfo stopInfo = new StopInsertionInfo(start, end);
tourInfo.AddStopInsertionInfo(stopInfo);
}
//Fleet usage
quality += instance.FleetUsageFactor.Value;
//Distance
quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
eval.Quality += quality;
tourInfo.Quality = quality;
}
protected abstract void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution);
protected override void SetResultParameters(VRPEvaluation tourEvaluation)
{
base.SetResultParameters(tourEvaluation);
PickupViolationsParameter.ActualValue.Value = (tourEvaluation as CVRPPDTWEvaluation).PickupViolations;
}
protected virtual void SetResultParameters(VRPEvaluation tourEvaluation) {
QualityParameter.ActualValue.Value = tourEvaluation.Quality;
VehcilesUtilizedParameter.ActualValue.Value = tourEvaluation.VehicleUtilization;
DistanceParameter.ActualValue.Value = tourEvaluation.Distance;
PenaltyParameter.ActualValue.Value = tourEvaluation.Penalty;
}
protected abstract void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution);
public double GetInsertionCosts(IVRPProblemInstance instance, IVRPEncoding solution, VRPEvaluation eval, int customer, int tour, int index, out bool feasible) {
bool tourFeasible;
double costs = GetTourInsertionCosts(
instance,
solution,
eval.InsertionInfo.GetTourInsertionInfo(tour),
index,
customer, out tourFeasible);
feasible = tourFeasible;
return costs;
}
public bool Feasible(VRPEvaluation evaluation) {
return evaluation.Penalty < double.Epsilon;
}
public bool Feasible(VRPEvaluation evaluation)
{
return(evaluation.Penalty < double.Epsilon);
}
public double GetInsertionCosts(IVRPProblemInstance instance, IVRPEncoding solution, VRPEvaluation eval, int customer, int tour, int index, out bool feasible)
{
bool tourFeasible;
double costs = GetTourInsertionCosts(
instance,
solution,
eval.InsertionInfo.GetTourInsertionInfo(tour),
index,
customer, out tourFeasible);
feasible = tourFeasible;
return(costs);
}
protected override void SetResultParameters(VRPEvaluation tourEvaluation)
{
base.SetResultParameters(tourEvaluation);
OverloadParameter.ActualValue.Value = (tourEvaluation as CVRPEvaluation).Overload;
}
public double GetInsertionCosts(VRPEvaluation eval, IVRPEncoding solution, int customer, int tour, int index, out bool feasible) {
return evaluator.GetInsertionCosts(this, solution, eval, customer, tour, index, out feasible);
}
public bool Feasible(VRPEvaluation eval)
{
return(evaluator.Feasible(eval));
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution)
{
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHomogenousCapacitatedProblemInstance cvrpInstance = instance as IHomogenousCapacitatedProblemInstance;
DoubleArray demand = instance.Demand;
ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
DoubleArray dueTime = vrptw.DueTime;
DoubleArray readyTime = vrptw.ReadyTime;
DoubleArray serviceTimes = vrptw.ServiceTime;
IPickupAndDeliveryProblemInstance pdp = instance as IPickupAndDeliveryProblemInstance;
IntArray pickupDeliveryLocation = pdp.PickupDeliveryLocation;
double capacity = cvrpInstance.Capacity.Value;
double time = 0.0;
double waitingTime = 0.0;
double serviceTime = 0.0;
double tardiness = 0.0;
double overweight = 0.0;
double distance = 0.0;
double currentLoad = 0.0;
Dictionary <int, bool> stops = new Dictionary <int, bool>();
int pickupViolations = 0;
double tourStartTime = readyTime[0];
time = tourStartTime;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++)
{
int start = 0;
if (i > 0)
{
start = tour.Stops[i - 1];
}
int end = 0;
if (i < tour.Stops.Count)
{
end = tour.Stops[i];
}
//drive there
double currentDistace = vrptw.GetDistance(start, end, solution);
time += currentDistace;
distance += currentDistace;
double arrivalTime = time;
//check if it was serviced on time
if (time > dueTime[end])
{
tardiness += time - dueTime[end];
}
//wait
double currentWaitingTime = 0.0;
if (time < readyTime[end])
{
currentWaitingTime = readyTime[end] - time;
}
double waitTime = readyTime[end] - time;
waitingTime += currentWaitingTime;
time += currentWaitingTime;
double spareTime = dueTime[end] - time;
//service
double currentServiceTime = serviceTimes[end];
serviceTime += currentServiceTime;
time += currentServiceTime;
//Pickup / deliver
double arrivalSpareCapacity = capacity - currentLoad;
bool validPickupDelivery =
validPickupDelivery =
((demand[end] >= 0) ||
(stops.ContainsKey(pickupDeliveryLocation[end])));
if (validPickupDelivery)
{
currentLoad += demand[end];
}
else
{
pickupViolations++;
}
if (currentLoad > capacity)
{
overweight += currentLoad - capacity;
}
double spareCapacity = capacity - currentLoad;
CVRPPDTWInsertionInfo stopInfo = new CVRPPDTWInsertionInfo(start, end, spareCapacity, tourStartTime,
arrivalTime, time, spareTime, waitTime, new List <int>(stops.Keys), arrivalSpareCapacity);
tourInfo.AddStopInsertionInfo(stopInfo);
stops.Add(end, true);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
(eval as CVRPEvaluation).Overload += overweight;
double tourPenalty = 0;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPTWEvaluation).Tardiness += tardiness;
(eval as CVRPTWEvaluation).TravelTime += time;
penalty = tardiness * vrptw.TardinessPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPPDTWEvaluation).PickupViolations += pickupViolations;
penalty = pickupViolations * pdp.PickupViolationPenalty.Value;
eval.Penalty += penalty;
tourPenalty += penalty;
eval.Quality += penalty;
eval.Quality += time * vrptw.TimeFactor.Value;
tourInfo.Penalty = tourPenalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
protected override void SetResultParameters(VRPEvaluation tourEvaluation) {
base.SetResultParameters(tourEvaluation);
PickupViolationsParameter.ActualValue.Value = (tourEvaluation as CVRPPDTWEvaluation).PickupViolations;
}
protected override void SetResultParameters(VRPEvaluation tourEvaluation) {
base.SetResultParameters(tourEvaluation);
OverloadParameter.ActualValue.Value = (tourEvaluation as CVRPEvaluation).Overload;
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution) {
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHeterogenousCapacitatedProblemInstance cvrpInstance = instance as IHeterogenousCapacitatedProblemInstance;
DoubleArray demand = instance.Demand;
ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
DoubleArray dueTime = vrptw.DueTime;
DoubleArray readyTime = vrptw.ReadyTime;
DoubleArray serviceTimes = vrptw.ServiceTime;
IPickupAndDeliveryProblemInstance pdp = instance as IPickupAndDeliveryProblemInstance;
IntArray pickupDeliveryLocation = pdp.PickupDeliveryLocation;
IMultiDepotProblemInstance mdp = instance as IMultiDepotProblemInstance;
IntArray vehicleAssignment = mdp.VehicleDepotAssignment;
int depots = mdp.Depots.Value;
double time = 0.0;
double waitingTime = 0.0;
double serviceTime = 0.0;
double tardiness = 0.0;
double overweight = 0.0;
double distance = 0.0;
int tourIndex = solution.GetTourIndex(tour);
int vehicle = solution.GetVehicleAssignment(tourIndex);
int depot = vehicleAssignment[vehicle];
double capacity = cvrpInstance.Capacity[vehicle];
double currentLoad = 0.0;
Dictionary<int, bool> stops = new Dictionary<int, bool>();
int pickupViolations = 0;
double tourStartTime = readyTime[0];
time = tourStartTime;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++) {
int start = 0;
if (i > 0)
start = tour.Stops[i - 1];
int end = 0;
if (i < tour.Stops.Count)
end = tour.Stops[i];
//drive there
double currentDistace = vrptw.GetDistance(start, end, solution);
time += currentDistace;
distance += currentDistace;
double arrivalTime = time;
int endIndex;
if (end == 0)
endIndex = depot;
else
endIndex = end + depots - 1;
//check if it was serviced on time
if (time > dueTime[endIndex])
tardiness += time - dueTime[endIndex];
//wait
double currentWaitingTime = 0.0;
if (time < readyTime[endIndex])
currentWaitingTime = readyTime[endIndex] - time;
double waitTime = readyTime[endIndex] - time;
waitingTime += currentWaitingTime;
time += currentWaitingTime;
double spareTime = dueTime[endIndex] - time;
double arrivalSpareCapacity = capacity - currentLoad;
if (end > 0) {
//service
double currentServiceTime = serviceTimes[end - 1];
serviceTime += currentServiceTime;
time += currentServiceTime;
//Pickup / deliver
bool validPickupDelivery =
validPickupDelivery =
((demand[end - 1] >= 0) ||
(stops.ContainsKey(pickupDeliveryLocation[end - 1])));
if (validPickupDelivery) {
currentLoad += demand[end - 1];
} else {
pickupViolations++;
}
if (currentLoad > capacity)
overweight += currentLoad - capacity;
}
double spareCapacity = capacity - currentLoad;
CVRPPDTWInsertionInfo stopInfo = new CVRPPDTWInsertionInfo(start, end, spareCapacity, tourStartTime,
arrivalTime, time, spareTime, waitTime, new List<int>(stops.Keys), arrivalSpareCapacity);
tourInfo.AddStopInsertionInfo(stopInfo);
stops.Add(end, true);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
(eval as CVRPEvaluation).Overload += overweight;
double tourPenalty = 0;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPTWEvaluation).Tardiness += tardiness;
(eval as CVRPTWEvaluation).TravelTime += time;
penalty = tardiness * vrptw.TardinessPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPPDTWEvaluation).PickupViolations += pickupViolations;
penalty = pickupViolations * pdp.PickupViolationPenalty.Value;
eval.Penalty += penalty;
tourPenalty += penalty;
eval.Quality += penalty;
eval.Quality += time * vrptw.TimeFactor.Value;
tourInfo.Penalty = tourPenalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution)
{
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHeterogenousCapacitatedProblemInstance cvrpInstance = instance as IHeterogenousCapacitatedProblemInstance;
DoubleArray demand = instance.Demand;
ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
DoubleArray dueTime = vrptw.DueTime;
DoubleArray readyTime = vrptw.ReadyTime;
DoubleArray serviceTimes = vrptw.ServiceTime;
IMultiDepotProblemInstance mdp = instance as IMultiDepotProblemInstance;
IntArray vehicleAssignment = mdp.VehicleDepotAssignment;
int depots = mdp.Depots.Value;
double time = 0.0;
double waitingTime = 0.0;
double serviceTime = 0.0;
double tardiness = 0.0;
double delivered = 0.0;
double overweight = 0.0;
double distance = 0.0;
int tourIndex = solution.GetTourIndex(tour);
int vehicle = solution.GetVehicleAssignment(tourIndex);
int depot = vehicleAssignment[vehicle];
double capacity = cvrpInstance.Capacity[vehicle];
for (int i = 0; i < tour.Stops.Count; i++)
{
delivered += instance.GetDemand(tour.Stops[i]);
}
double spareCapacity = capacity - delivered;
double tourStartTime = vrptw.ReadyTime[depot];
time = tourStartTime;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++)
{
int start = 0;
if (i > 0)
{
start = tour.Stops[i - 1];
}
int end = 0;
if (i < tour.Stops.Count)
{
end = tour.Stops[i];
}
//drive there
double currentDistace = vrptw.GetDistance(start, end, solution);
time += currentDistace;
distance += currentDistace;
double arrivalTime = time;
int endIndex;
if (end == 0)
{
endIndex = depot;
}
else
{
endIndex = end + depots - 1;
}
//check if it was serviced on time
if (time > dueTime[endIndex])
{
tardiness += time - dueTime[endIndex];
}
//wait
double currentWaitingTime = 0.0;
if (time < readyTime[endIndex])
{
currentWaitingTime = readyTime[endIndex] - time;
}
double waitTime = readyTime[endIndex] - time;
waitingTime += currentWaitingTime;
time += currentWaitingTime;
double spareTime = dueTime[endIndex] - time;
//service
double currentServiceTime = 0;
if (end > 0)
{
currentServiceTime = serviceTimes[end - 1];
}
serviceTime += currentServiceTime;
time += currentServiceTime;
CVRPTWInsertionInfo stopInfo = new CVRPTWInsertionInfo(start, end, spareCapacity, tourStartTime, arrivalTime, time, spareTime, waitTime);
tourInfo.AddStopInsertionInfo(stopInfo);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
if (delivered > capacity)
{
overweight = delivered - capacity;
}
(eval as CVRPEvaluation).Overload += overweight;
double tourPenalty = 0;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPTWEvaluation).Tardiness += tardiness;
(eval as CVRPTWEvaluation).TravelTime += time;
penalty = tardiness * vrptw.TardinessPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
eval.Quality += time * vrptw.TimeFactor.Value;
tourInfo.Penalty = tourPenalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
protected override void SetResultParameters(VRPEvaluation tourEvaluation) {
base.SetResultParameters(tourEvaluation);
TardinessParameter.ActualValue.Value = (tourEvaluation as CVRPTWEvaluation).Tardiness;
TravelTimeParameter.ActualValue.Value = (tourEvaluation as CVRPTWEvaluation).TravelTime;
}
public double GetInsertionCosts(VRPEvaluation eval, IVRPEncoding solution, int customer, int tour, int index, out bool feasible)
{
return(evaluator.GetInsertionCosts(this, solution, eval, customer, tour, index, out feasible));
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution) {
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHeterogenousCapacitatedProblemInstance cvrpInstance = instance as IHeterogenousCapacitatedProblemInstance;
DoubleArray demand = instance.Demand;
ITimeWindowedProblemInstance vrptw = instance as ITimeWindowedProblemInstance;
DoubleArray dueTime = vrptw.DueTime;
DoubleArray readyTime = vrptw.ReadyTime;
DoubleArray serviceTimes = vrptw.ServiceTime;
IMultiDepotProblemInstance mdp = instance as IMultiDepotProblemInstance;
IntArray vehicleAssignment = mdp.VehicleDepotAssignment;
int depots = mdp.Depots.Value;
double time = 0.0;
double waitingTime = 0.0;
double serviceTime = 0.0;
double tardiness = 0.0;
double delivered = 0.0;
double overweight = 0.0;
double distance = 0.0;
int tourIndex = solution.GetTourIndex(tour);
int vehicle = solution.GetVehicleAssignment(tourIndex);
int depot = vehicleAssignment[vehicle];
double capacity = cvrpInstance.Capacity[vehicle];
for (int i = 0; i < tour.Stops.Count; i++) {
delivered += instance.GetDemand(tour.Stops[i]);
}
double spareCapacity = capacity - delivered;
double tourStartTime = vrptw.ReadyTime[depot];
time = tourStartTime;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++) {
int start = 0;
if (i > 0)
start = tour.Stops[i - 1];
int end = 0;
if (i < tour.Stops.Count)
end = tour.Stops[i];
//drive there
double currentDistace = vrptw.GetDistance(start, end, solution);
time += currentDistace;
distance += currentDistace;
double arrivalTime = time;
int endIndex;
if (end == 0)
endIndex = depot;
else
endIndex = end + depots - 1;
//check if it was serviced on time
if (time > dueTime[endIndex])
tardiness += time - dueTime[endIndex];
//wait
double currentWaitingTime = 0.0;
if (time < readyTime[endIndex])
currentWaitingTime = readyTime[endIndex] - time;
double waitTime = readyTime[endIndex] - time;
waitingTime += currentWaitingTime;
time += currentWaitingTime;
double spareTime = dueTime[endIndex] - time;
//service
double currentServiceTime = 0;
if (end > 0)
currentServiceTime = serviceTimes[end - 1];
serviceTime += currentServiceTime;
time += currentServiceTime;
CVRPTWInsertionInfo stopInfo = new CVRPTWInsertionInfo(start, end, spareCapacity, tourStartTime, arrivalTime, time, spareTime, waitTime);
tourInfo.AddStopInsertionInfo(stopInfo);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
if (delivered > capacity) {
overweight = delivered - capacity;
}
(eval as CVRPEvaluation).Overload += overweight;
double tourPenalty = 0;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
(eval as CVRPTWEvaluation).Tardiness += tardiness;
(eval as CVRPTWEvaluation).TravelTime += time;
penalty = tardiness * vrptw.TardinessPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourPenalty += penalty;
eval.Quality += time * vrptw.TimeFactor.Value;
tourInfo.Penalty = tourPenalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
protected override void EvaluateTour(VRPEvaluation eval, IVRPProblemInstance instance, Tour tour, IVRPEncoding solution)
{
TourInsertionInfo tourInfo = new TourInsertionInfo(solution.GetVehicleAssignment(solution.GetTourIndex(tour)));
eval.InsertionInfo.AddTourInsertionInfo(tourInfo);
double originalQuality = eval.Quality;
IHeterogenousCapacitatedProblemInstance cvrpInstance = instance as IHeterogenousCapacitatedProblemInstance;
double delivered = 0.0;
double overweight = 0.0;
double distance = 0.0;
int tourIndex = solution.GetTourIndex(tour);
int vehicle = solution.GetVehicleAssignment(tourIndex);
double capacity = cvrpInstance.Capacity[vehicle];
for (int i = 0; i < tour.Stops.Count; i++)
{
delivered += instance.GetDemand(tour.Stops[i]);
}
double spareCapacity = capacity - delivered;
//simulate a tour, start and end at depot
for (int i = 0; i <= tour.Stops.Count; i++)
{
int start = 0;
if (i > 0)
{
start = tour.Stops[i - 1];
}
int end = 0;
if (i < tour.Stops.Count)
{
end = tour.Stops[i];
}
//drive there
double currentDistace = instance.GetDistance(start, end, solution);
distance += currentDistace;
CVRPInsertionInfo stopInfo = new CVRPInsertionInfo(start, end, spareCapacity);
tourInfo.AddStopInsertionInfo(stopInfo);
}
eval.Quality += instance.FleetUsageFactor.Value;
eval.Quality += instance.DistanceFactor.Value * distance;
eval.Distance += distance;
eval.VehicleUtilization += 1;
if (delivered > capacity)
{
overweight = delivered - capacity;
}
(eval as CVRPEvaluation).Overload += overweight;
double penalty = overweight * cvrpInstance.OverloadPenalty.Value;
eval.Penalty += penalty;
eval.Quality += penalty;
tourInfo.Penalty = penalty;
tourInfo.Quality = eval.Quality - originalQuality;
}
public bool Feasible(VRPEvaluation eval) {
return evaluator.Feasible(eval);
}