Changeset 6907 for branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Manipulators/PotvinOneLevelExchangeManipulator.cs

Timestamp:

10/12/11 13:41:14 (13 years ago)

Author:

svonolfe

Message:

Fixed various isses that occured in dynamic instances (#1177)

File:

• branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Manipulators/PotvinOneLevelExchangeManipulator.cs (modified) (1 diff)

branches/VRP/HeuristicLab.Problems.VehicleRouting/3.4/Encodings/Potvin/Manipulators/PotvinOneLevelExchangeManipulator.cs

@@ -49 +49 @@
       
       int selectedIndex = SelectRandomTourBiasedByLength(random, individual);
-      Tour route1 =
-        individual.Tours[selectedIndex];
+      if (selectedIndex >= 0) {
+        Tour route1 =
+          individual.Tours[selectedIndex];
 
-      int count = route1.Stops.Count;
-      int i = 0;
-      while(i < count) {
-        int insertedRoute, insertedPlace;
+        int count = route1.Stops.Count;
+        int i = 0;
+        while (i < count) {
+          int insertedRoute, insertedPlace;
 
-        int city = route1.Stops[i];
-        route1.Stops.Remove(city);
+          int city = route1.Stops[i];
+          route1.Stops.Remove(city);
 
-        if (FindInsertionPlace(individual, city, selectedIndex, allowInfeasible, out insertedRoute, out insertedPlace)) {
-          individual.Tours[insertedRoute].Stops.Insert(insertedPlace, city);
-        } else {
-          route1.Stops.Insert(i, city);
-          i++;
+          if (FindInsertionPlace(individual, city, selectedIndex, allowInfeasible, out insertedRoute, out insertedPlace)) {
+            individual.Tours[insertedRoute].Stops.Insert(insertedPlace, city);
+          } else {
+            route1.Stops.Insert(i, city);
+            i++;
+          }
+
+          count = route1.Stops.Count;
         }
-
-        count = route1.Stops.Count;
       }
-
     }
   }