/*******************************************************************************
* Copyright (C) 2014 Stefan Schroeder
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3.0 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
******************************************************************************/
package jsprit.examples;
import jsprit.analysis.toolbox.Plotter;
import jsprit.core.algorithm.VehicleRoutingAlgorithm;
import jsprit.core.algorithm.box.Jsprit;
import jsprit.core.analysis.SolutionAnalyser;
import jsprit.core.problem.Location;
import jsprit.core.problem.VehicleRoutingProblem;
import jsprit.core.problem.cost.TransportDistance;
import jsprit.core.problem.job.Service;
import jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import jsprit.core.problem.vehicle.VehicleImpl;
import jsprit.core.problem.vehicle.VehicleImpl.Builder;
import jsprit.core.problem.vehicle.VehicleType;
import jsprit.core.problem.vehicle.VehicleTypeImpl;
import jsprit.core.reporting.SolutionPrinter;
import jsprit.core.util.RandomNumberGeneration;
import jsprit.core.util.Solutions;
import java.util.Collection;
import java.util.Random;
public class MultipleTimeWindowExample2 {
public static void main(String[] args) {
/*
* get a vehicle type-builder and build a type with the typeId "vehicleType" and one capacity dimension, i.e. weight, and capacity dimension value of 2
*/
VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType")
.addCapacityDimension(0, 60)
.setCostPerWaitingTime(0.8)
;
VehicleType vehicleType = vehicleTypeBuilder.build();
/*
* get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
*/
Builder vehicleBuilder = Builder.newInstance("vehicle");
vehicleBuilder.setStartLocation(Location.newInstance(0, 0));
vehicleBuilder.setType(vehicleType);
vehicleBuilder.setLatestArrival(800);
VehicleImpl vehicle = vehicleBuilder.build();
// Builder vehicleBuilder2 = Builder.newInstance("vehicle2");
// vehicleBuilder2.setStartLocation(Location.newInstance(0, 0));
// vehicleBuilder2.setType(vehicleType);
// vehicleBuilder2.setEarliestStart(250).setLatestArrival(450);
// VehicleImpl vehicle2 = vehicleBuilder2.build();
//
//
// Builder vehicleBuilder3 = Builder.newInstance("vehicle3");
// vehicleBuilder3.setStartLocation(Location.newInstance(0, 0));
// vehicleBuilder3.setType(vehicleType);
// vehicleBuilder3.setEarliestStart(380).setLatestArrival(600);
// VehicleImpl vehicle3 = vehicleBuilder3.build();
/*
* build services at the required locations, each with a capacity-demand of 1.
*/
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle);
// .addVehicle(vehicle2).addVehicle(vehicle3);
vrpBuilder.setFleetSize(VehicleRoutingProblem.FleetSize.FINITE);
Random random = RandomNumberGeneration.newInstance();
for(int i=0;i<40;i++){
Service service = Service.Builder.newInstance("" + (i + 1))
.addTimeWindow(random.nextInt(50), 200)
.addTimeWindow(220 + random.nextInt(50), 350)
.addTimeWindow(400 + random.nextInt(50), 550)
// .addSizeDimension(0, 1)
.setServiceTime(1)
.setLocation(Location.newInstance(random.nextInt(50), random.nextInt(50))).build();
vrpBuilder.addJob(service);
}
for(int i=0;i<12;i++){
Service service = Service.Builder.newInstance(""+(i+51))
// .addTimeWindow(0, 80)
//// .addTimeWindow(120, 200)
// .addTimeWindow(250,500)
// .addSizeDimension(0, 1)
.setServiceTime(2)
.setLocation(Location.newInstance(50 + random.nextInt(20), 20 + random.nextInt(25))).build();
vrpBuilder.addJob(service);
}
Service service = Service.Builder.newInstance("100")
.addTimeWindow(50, 80)
.setServiceTime(10)
.setLocation(Location.newInstance(40, 1)).build();
vrpBuilder.addJob(service);
final VehicleRoutingProblem problem = vrpBuilder.build();
VehicleRoutingAlgorithm algorithm = Jsprit.Builder.newInstance(problem).buildAlgorithm();
/*
* and search a solution
*/
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
/*
* get the best
*/
VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions);
// new VrpXMLWriter(problem, solutions).write("output/problem-with-solution.xml");
SolutionPrinter.print(problem, bestSolution, SolutionPrinter.Print.VERBOSE);
/*
* plot
*/
new Plotter(problem,bestSolution).setLabel(Plotter.Label.ID).plot("output/plot", "mtw");
SolutionAnalyser a = new SolutionAnalyser(problem, bestSolution, new TransportDistance() {
@Override
public double getDistance(Location from, Location to) {
return problem.getTransportCosts().getTransportTime(from,to,0.,null,null);
}
});
System.out.println("distance: " + a.getDistance());
System.out.println("ttime: " + a.getTransportTime());
System.out.println("completion: " + a.getOperationTime());
System.out.println("waiting: " + a.getWaitingTime());
// new GraphStreamViewer(problem, bestSolution).labelWith(Label.ID).setRenderDelay(200).display();
}
}