Changeset 6851 for branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Crossovers/PotvinRouteBasedCrossover.cs

Timestamp:

09/29/11 15:51:56 (13 years ago)

Author:

svonolfe

Message:

Added support for multi depot CVRP instances (#1177)

File:

• branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Crossovers/PotvinRouteBasedCrossover.cs (modified) (2 diffs)

branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Crossovers/PotvinRouteBasedCrossover.cs

@@ -26 +26 @@
 using HeuristicLab.Data;
 using HeuristicLab.Common;
+using HeuristicLab.Problems.VehicleRouting.Encodings.ExtendedPotvin;
 
 namespace HeuristicLab.Problems.VehicleRouting.Encodings.Potvin {
@@ -57 +58 @@
 
       child.Tours.Remove(replaced);
-      child.Tours.Add(replacing);
+      child.Tours.Insert(tourParent2, replacing);
+
+      if (parent1 is ExtendedPotvinEncoding && child is ExtendedPotvinEncoding) {
+        Permutation vehicleAssignment = (child as ExtendedPotvinEncoding).VehicleAssignment;
+
+        int vehicle = vehicleAssignment[tourParent2];
+        int vehicle2 = (parent1 as ExtendedPotvinEncoding).VehicleAssignment[tourParent1];
+        vehicleAssignment[tourParent2] = vehicle2;
+
+        for (int i = 0; i < vehicleAssignment.Length; i++) {
+          if (vehicleAssignment[i] == vehicle2 && i != tourParent2) {
+            vehicleAssignment[i] = vehicle;
+            break;
+          }
+        }        
+      }
 
       foreach (int city in replaced.Stops)