trans/graphhopper-jsprit
1
0
Fork 0
mirror of https://github.com/graphhopper/jsprit.git synced 2020-01-24 07:45:05 +01:00
Code Issues Releases Wiki Activity

further refine wainting time min

Browse source
This commit is contained in:
oblonski 2015-08-03 09:15:52 +02:00
parent 9717926b8e
commit 70d6ae1797
8 changed files with 251 additions and 38 deletions
Download patch file Download diff file Expand all files Collapse all files

31
jsprit-examples/src/main/java/jsprit/examples/VariableStartAndWaitingTimeExample.java
View file

@ -7,9 +7,11 @@ import jsprit.core.algorithm.box.Jsprit;
import jsprit.core.algorithm.state.StateManager;
import jsprit.core.algorithm.state.UpdateDepartureTime;
import jsprit.core.algorithm.state.UpdateTimeSlack;
import jsprit.core.analysis.SolutionAnalyser;
import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.constraint.ConstraintManager;
import jsprit.core.problem.cost.TransportDistance;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.solution.SolutionCostCalculator;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
@ -35,19 +37,20 @@ public class VariableStartAndWaitingTimeExample {
public static void main(String[] args) {
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type").setCostPerDistance(2.5).setCostPerWaitingTime(2.0).build();
// VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("type1").setCostPerDistance(1.5).setCostPerWaitingTime(.0).build();
VehicleTypeImpl type = VehicleTypeImpl.Builder.newInstance("type").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type1 = VehicleTypeImpl.Builder.newInstance("type1").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleTypeImpl type2 = VehicleTypeImpl.Builder.newInstance("type2").setCostPerDistance(4.).setCostPerWaitingTime(2.0).build();
VehicleImpl v2 = VehicleImpl.Builder.newInstance("v2").setType(type).setReturnToDepot(true)
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
VehicleImpl v3 = VehicleImpl.Builder.newInstance("v3").setType(type).setReturnToDepot(true)
VehicleImpl v3 = VehicleImpl.Builder.newInstance("v3").setType(type1).setReturnToDepot(true)
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
VehicleImpl v4 = VehicleImpl.Builder.newInstance("v4").setType(type2).setReturnToDepot(true)
.setHasVariableDepartureTime(true).setStartLocation(Location.newInstance(0, 0)).build();
VehicleImpl v4 = VehicleImpl.Builder.newInstance("v4").setType(type).setReturnToDepot(true)
.setHasVariableDepartureTime(false).setStartLocation(Location.newInstance(0, 0)).build();
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
Random r = RandomNumberGeneration.newInstance();
for(int i=0;i<40;i++){
Service s = Service.Builder.newInstance("s_"+i).setServiceTime(0)
Service s = Service.Builder.newInstance("s_"+i).setServiceTime(1)
// .setTimeWindow(TimeWindow.newInstance(r.nextInt(50),100+r.nextInt(150)))
.setLocation(Location.newInstance(1 - r.nextInt(5), 10 + r.nextInt(10))).build();
vrpBuilder.addJob(s);
@ -64,14 +67,14 @@ public class VariableStartAndWaitingTimeExample {
@Override
public VehicleRoutingAlgorithm createAlgorithm(final VehicleRoutingProblem vrp) {
StateManager stateManager = new StateManager(vrp);
stateManager.addStateUpdater(new UpdateDepartureTime(vrp.getTransportCosts()));
stateManager.addStateUpdater(new UpdateDepartureTime(vrp.getTransportCosts(), stateManager));
stateManager.addStateUpdater(new UpdateTimeSlack(stateManager,vrp.getTransportCosts()));
ConstraintManager constraintManager = new ConstraintManager(vrp,stateManager);
return Jsprit.Builder.newInstance(vrp)
.addCoreStateAndConstraintStuff(true)
.setStateAndConstraintManager(stateManager, constraintManager)
// .setProperty(Jsprit.Parameter.THRESHOLD_INI, "0.1")
.setProperty(Jsprit.Parameter.THRESHOLD_INI, "0.1")
// .setProperty(Jsprit.Parameter.THRESHOLD_ALPHA, "0.3")
// .setProperty(Parameter.)
// .setProperty(Jsprit.Parameter.CONSTRUCTION, Jsprit.Construction.BEST_INSERTION.toString())
@ -97,12 +100,22 @@ public class VariableStartAndWaitingTimeExample {
}
};
VehicleRoutingAlgorithm vra = algorithmFactory.createAlgorithm(vrp);
vra.setMaxIterations(500);
vra.setMaxIterations(2000);
vra.addListener(new AlgorithmSearchProgressChartListener("output/search"));
VehicleRoutingProblemSolution solution = Solutions.bestOf(vra.searchSolutions());
System.out.println("c: " + solution.getCost());
SolutionPrinter.print(vrp, solution, SolutionPrinter.Print.VERBOSE);
SolutionAnalyser sa = new SolutionAnalyser(vrp, solution, new TransportDistance() {
@Override
public double getDistance(Location from, Location to) {
return vrp.getTransportCosts().getTransportTime(from,to,0.,null,null);
}
});
System.out.println("totalWaiting: " + sa.getWaitingTime());
System.out.println("brokenTWs: " + sa.getTimeWindowViolation());
new Plotter(vrp,solution).setLabel(Plotter.Label.ID).plot("output/plot","plot");
}
}