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add VehicleRoutingTransportCostMatrix to easily consider time and

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distance matrices, and add an example that illustrates the matrix
This commit is contained in:
oblonski 2013-07-16 21:03:07 +02:00
parent 13a9122df1
commit 8950d49e5a
6 changed files with 370 additions and 9 deletions
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20
jsprit-examples/src/main/java/examples/RefuseCollectionExample.java
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@ -30,6 +30,8 @@ import java.util.HashMap;
import java.util.Map;
import util.Solutions;
import util.VehicleRoutingTransportCostsMatrix;
import util.VehicleRoutingTransportCostsMatrix.Builder;
import algorithms.GreedySchrimpfFactory;
import analysis.SolutionPrinter;
import analysis.SolutionPrinter.Print;
@ -179,13 +181,12 @@ public class RefuseCollectionExample {
readDemandQuantities(vrpBuilder);
/*
* read distances
* create cost-matrix
*/
Map<RelationKey,Integer> distances = new HashMap<RelationKey, Integer>();
readDistances(distances);
VehicleRoutingTransportCosts routingCosts = new RoutingCosts(distances);
vrpBuilder.setRoutingCost(routingCosts);
VehicleRoutingTransportCostsMatrix.Builder matrixBuilder = VehicleRoutingTransportCostsMatrix.Builder.newInstance(true);
readDistances(matrixBuilder);
vrpBuilder.setRoutingCost(matrixBuilder.build());
VehicleRoutingProblem vrp = vrpBuilder.build();
@ -199,6 +200,7 @@ public class RefuseCollectionExample {
}
private static void readDemandQuantities(VehicleRoutingProblem.Builder vrpBuilder) throws FileNotFoundException, IOException {
BufferedReader reader = new BufferedReader(new FileReader(new File("input/RefuseCollectionExample_Quantities")));
String line = null;
@ -221,7 +223,8 @@ public class RefuseCollectionExample {
reader.close();
}
private static void readDistances(Map<RelationKey, Integer> distances) throws IOException {
private static void readDistances(Builder matrixBuilder) throws IOException {
BufferedReader reader = new BufferedReader(new FileReader(new File("input/RefuseCollectionExample_Distances")));
String line = null;
boolean firstLine = true;
@ -231,8 +234,7 @@ public class RefuseCollectionExample {
continue;
}
String[] lineTokens = line.split(",");
RelationKey key = RelationKey.newKey(lineTokens[0],lineTokens[1]);
distances.put(key, Integer.parseInt(lineTokens[2]));
matrixBuilder.addTransportDistance(lineTokens[0],lineTokens[1], Integer.parseInt(lineTokens[2]));
}
reader.close();