diff --git a/jsprit-examples/src/main/java/jsprit/examples/ServicePickupsWithMultipleDepots2Example.java b/jsprit-examples/src/main/java/jsprit/examples/ServicePickupsWithMultipleDepots2Example.java new file mode 100644 index 00000000..2d341394 --- /dev/null +++ b/jsprit-examples/src/main/java/jsprit/examples/ServicePickupsWithMultipleDepots2Example.java @@ -0,0 +1,158 @@ +/******************************************************************************* + * 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 . + ******************************************************************************/ +package jsprit.examples; + +import jsprit.analysis.toolbox.Plotter; +import jsprit.core.algorithm.VehicleRoutingAlgorithm; +import jsprit.core.algorithm.box.Jsprit; +import jsprit.core.problem.Location; +import jsprit.core.problem.VehicleRoutingProblem; +import jsprit.core.problem.cost.VehicleRoutingActivityCosts; +import jsprit.core.problem.driver.Driver; +import jsprit.core.problem.job.Service; +import jsprit.core.problem.solution.VehicleRoutingProblemSolution; +import jsprit.core.problem.solution.route.activity.TourActivity; +import jsprit.core.problem.vehicle.Vehicle; +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.Solutions; +import jsprit.util.Examples; + +import java.util.Collection; + + +public class ServicePickupsWithMultipleDepots2Example { + + public static void main(String[] args) { + /* + * some preparation - create output folder + */ + Examples.createOutputFolder(); + + /* + * get a vehicle type-builder and build a type with the typeId "vehicleType" and a capacity of 2 + */ + VehicleTypeImpl.Builder vehicleTypeBuilder = VehicleTypeImpl.Builder.newInstance("vehicleType1").addCapacityDimension(0, 8); + vehicleTypeBuilder.setCostPerDistance(1.0); + VehicleType vehicleType = vehicleTypeBuilder.build(); + + VehicleTypeImpl.Builder vehicleTypeBuilder2 = VehicleTypeImpl.Builder.newInstance("vehicleType2").addCapacityDimension(0, 8); + vehicleTypeBuilder2.setCostPerDistance(1.0); + VehicleType vehicleType2 = vehicleTypeBuilder2.build(); + + /* + * define two depots, i.e. two vehicle locations ([10,10],[50,50]) and equip them with an infinite number of vehicles of type 'vehicleType' + */ + Builder vehicleBuilder1 = Builder.newInstance("vehicles@[10,10]"); + vehicleBuilder1.setStartLocation(Location.newInstance(10, 10)); + vehicleBuilder1.setType(vehicleType); + VehicleImpl vehicle1 = vehicleBuilder1.build(); + + Builder vehicleBuilder2 = Builder.newInstance("vehicles@[50,50]"); + vehicleBuilder2.setStartLocation(Location.newInstance(50, 50)); + vehicleBuilder2.setType(vehicleType2); + VehicleImpl vehicle2 = vehicleBuilder2.build(); + + + /* + * build shipments at the required locations, each with a capacity-demand of 1. + * 4 shipments + * 1: (5,7)->(6,9) + * 2: (5,13)->(6,11) + * 3: (15,7)->(14,9) + * 4: (15,13)->(14,11) + */ + + Service shipment1 = Service.Builder.newInstance("1") + .setServiceTime(20.).addSizeDimension(0, 1).setLocation(Location.newInstance(5, 7)).build(); + Service shipment2 = Service.Builder.newInstance("2") + .setServiceTime(20.).addSizeDimension(0, 1).setLocation(Location.newInstance(5, 13)).build(); + + Service shipment3 = Service.Builder.newInstance("3") + .setServiceTime(20).addSizeDimension(0, 1).setLocation(Location.newInstance(15, 7)).build(); + Service shipment4 = Service.Builder.newInstance("4") + .setServiceTime(20.).addSizeDimension(0, 1).setLocation(Location.newInstance(15, 13)).build(); + + Service shipment5 = Service.Builder.newInstance("5") + .setServiceTime(20).addSizeDimension(0, 1).setLocation(Location.newInstance(55, 57)).build(); + Service shipment6 = Service.Builder.newInstance("6") + .setServiceTime(20).addSizeDimension(0, 1).setLocation(Location.newInstance(55, 63)).build(); + + Service shipment7 = Service.Builder.newInstance("7") + .setServiceTime(20).addSizeDimension(0, 1).setLocation(Location.newInstance(65, 57)).build(); + Service shipment8 = Service.Builder.newInstance("8") + .setServiceTime(20).addSizeDimension(0, 1).setLocation(Location.newInstance(65, 63)).build(); + + + VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance(); + vrpBuilder.addVehicle(vehicle1).addVehicle(vehicle2); + vrpBuilder.addJob(shipment1).addJob(shipment2).addJob(shipment3).addJob(shipment4); + vrpBuilder.addJob(shipment5).addJob(shipment6).addJob(shipment7).addJob(shipment8); + + vrpBuilder.setActivityCosts(new VehicleRoutingActivityCosts() { + + @Override + public double getActivityCost(TourActivity tourAct, double arrivalTime, Driver driver, Vehicle vehicle) { + return 0; + } + + @Override + public double getActivityDuration(TourActivity tourAct, double arrivalTime, Driver driver, Vehicle vehicle) { + if(vehicle.getType().getTypeId().equals("vehicleType1")){ + return tourAct.getOperationTime(); + } + else return tourAct.getOperationTime() / 10.; + } + + }); +// vrpBuilder.setFleetSize(FleetSize.FINITE); + VehicleRoutingProblem problem = vrpBuilder.build(); + + /* + * get the algorithm out-of-the-box. + */ + VehicleRoutingAlgorithm algorithm = Jsprit.createAlgorithm(problem); + algorithm.setMaxIterations(100); + + /* + * and search a solution + */ + Collection solutions = algorithm.searchSolutions(); + + /* + * get the best + */ + VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions); + + /* + * print nRoutes and totalCosts of bestSolution + */ + SolutionPrinter.print(problem,bestSolution, SolutionPrinter.Print.VERBOSE); + + /* + * plot problem with solution + */ + Plotter solutionPlotter = new Plotter(problem, bestSolution); + solutionPlotter.plot("output/plot.png", "vehicle dependent service time"); + + + } + +}