/******************************************************************************* * Copyright (C) 2013 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 java.util.Arrays; import java.util.Collection; import jsprit.analysis.toolbox.GraphStreamViewer; import jsprit.analysis.toolbox.GraphStreamViewer.Label; import jsprit.analysis.toolbox.Plotter; import jsprit.analysis.toolbox.SolutionPrinter; import jsprit.core.algorithm.VehicleRoutingAlgorithm; import jsprit.core.algorithm.io.VehicleRoutingAlgorithms; import jsprit.core.problem.VehicleRoutingProblem; import jsprit.core.problem.VehicleRoutingProblem.FleetSize; import jsprit.core.problem.io.VrpXMLWriter; import jsprit.core.problem.job.Shipment; import jsprit.core.problem.solution.VehicleRoutingProblemSolution; 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.util.Coordinate; import jsprit.core.util.Solutions; import jsprit.util.Examples; public class EnRoutePickupAndDeliveryWithMultipleDepotsAndOpenRoutesExample { 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("vehicleType").addCapacityDimension(0, 2); vehicleTypeBuilder.setCostPerDistance(1.0); VehicleType vehicleType = vehicleTypeBuilder.build(); /* * define two vehicles and their start-locations * * the first two do need to return to depot */ Builder vehicleBuilder1 = VehicleImpl.Builder.newInstance("vehicles@[10,10]"); vehicleBuilder1.setStartLocationCoordinate(Coordinate.newInstance(10, 10)).setReturnToDepot(false); vehicleBuilder1.setType(vehicleType); Vehicle vehicle1 = vehicleBuilder1.build(); Builder vehicleBuilder2 = VehicleImpl.Builder.newInstance("vehicles@[30,30]"); vehicleBuilder2.setStartLocationCoordinate(Coordinate.newInstance(30, 30)).setReturnToDepot(false); vehicleBuilder2.setType(vehicleType); Vehicle vehicle2 = vehicleBuilder2.build(); Builder vehicleBuilder3 = VehicleImpl.Builder.newInstance("vehicles@[10,30]"); vehicleBuilder3.setStartLocationCoordinate(Coordinate.newInstance(10, 30)); vehicleBuilder3.setType(vehicleType); Vehicle vehicle3 = vehicleBuilder3.build(); Builder vehicleBuilder4 = VehicleImpl.Builder.newInstance("vehicles@[30,10]"); vehicleBuilder4.setStartLocationCoordinate(Coordinate.newInstance(30, 10)); vehicleBuilder4.setType(vehicleType); Vehicle vehicle4 = vehicleBuilder4.build(); /* * build shipments at the required locations, each with a capacity-demand of 1. */ Shipment shipment1 = Shipment.Builder.newInstance("1").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(5, 7)).setDeliveryCoord(Coordinate.newInstance(6, 9)).build(); Shipment shipment2 = Shipment.Builder.newInstance("2").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(5, 13)).setDeliveryCoord(Coordinate.newInstance(6, 11)).build(); Shipment shipment3 = Shipment.Builder.newInstance("3").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(15, 7)).setDeliveryCoord(Coordinate.newInstance(14, 9)).build(); Shipment shipment4 = Shipment.Builder.newInstance("4").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(15, 13)).setDeliveryCoord(Coordinate.newInstance(14, 11)).build(); Shipment shipment5 = Shipment.Builder.newInstance("5").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(25, 27)).setDeliveryCoord(Coordinate.newInstance(26, 29)).build(); Shipment shipment6 = Shipment.Builder.newInstance("6").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(25, 33)).setDeliveryCoord(Coordinate.newInstance(26, 31)).build(); Shipment shipment7 = Shipment.Builder.newInstance("7").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(35, 27)).setDeliveryCoord(Coordinate.newInstance(34, 29)).build(); Shipment shipment8 = Shipment.Builder.newInstance("8").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(35, 33)).setDeliveryCoord(Coordinate.newInstance(34, 31)).build(); Shipment shipment9 = Shipment.Builder.newInstance("9").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(5, 27)).setDeliveryCoord(Coordinate.newInstance(6, 29)).build(); Shipment shipment10 = Shipment.Builder.newInstance("10").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(5, 33)).setDeliveryCoord(Coordinate.newInstance(6, 31)).build(); Shipment shipment11 = Shipment.Builder.newInstance("11").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(15, 27)).setDeliveryCoord(Coordinate.newInstance(14, 29)).build(); Shipment shipment12 = Shipment.Builder.newInstance("12").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(15, 33)).setDeliveryCoord(Coordinate.newInstance(14, 31)).build(); Shipment shipment13 = Shipment.Builder.newInstance("13").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(25, 7)).setDeliveryCoord(Coordinate.newInstance(26, 9)).build(); Shipment shipment14 = Shipment.Builder.newInstance("14").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(25, 13)).setDeliveryCoord(Coordinate.newInstance(26, 11)).build(); Shipment shipment15 = Shipment.Builder.newInstance("15").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(35, 7)).setDeliveryCoord(Coordinate.newInstance(34, 9)).build(); Shipment shipment16 = Shipment.Builder.newInstance("16").addSizeDimension(0, 1).setPickupCoord(Coordinate.newInstance(35, 13)).setDeliveryCoord(Coordinate.newInstance(34, 11)).build(); VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance(); vrpBuilder.addVehicle(vehicle1).addVehicle(vehicle2).addVehicle(vehicle3).addVehicle(vehicle4); vrpBuilder.addJob(shipment1).addJob(shipment2).addJob(shipment3).addJob(shipment4); vrpBuilder.addJob(shipment5).addJob(shipment6).addJob(shipment7).addJob(shipment8); vrpBuilder.addJob(shipment9).addJob(shipment10).addJob(shipment11).addJob(shipment12); vrpBuilder.addJob(shipment13).addJob(shipment14).addJob(shipment15).addJob(shipment16); vrpBuilder.setFleetSize(FleetSize.FINITE); VehicleRoutingProblem problem = vrpBuilder.build(); /* * get the algorithm out-of-the-box. */ VehicleRoutingAlgorithm algorithm = VehicleRoutingAlgorithms.readAndCreateAlgorithm(problem, "input/algorithmConfig.xml"); // algorithm.setNuOfIterations(30000); /* * and search a solution */ Collection solutions = algorithm.searchSolutions(); /* * get the best */ VehicleRoutingProblemSolution bestSolution = Solutions.bestOf(solutions); /* * write out problem and solution to xml-file */ new VrpXMLWriter(problem, solutions).write("output/shipment-problem-with-solution.xml"); /* * print nRoutes and totalCosts of bestSolution */ SolutionPrinter.print(bestSolution); /* * plot problem without solution */ Plotter problemPlotter = new Plotter(problem); problemPlotter.plotShipments(true); problemPlotter.plot("output/enRoutePickupAndDeliveryWithMultipleLocationsExample_problem.png", "en-route pickup and delivery"); /* * plot problem with solution */ Plotter solutionPlotter = new Plotter(problem,Arrays.asList(Solutions.bestOf(solutions).getRoutes().iterator().next())); solutionPlotter.plotShipments(true); solutionPlotter.plot("output/enRoutePickupAndDeliveryWithMultipleLocationsExample_solution.png", "en-route pickup and delivery"); new GraphStreamViewer(problem,Solutions.bestOf(solutions)).labelWith(Label.ACTIVITY).setRenderDelay(100).setRenderShipments(true).display(); } }