com.graphhopper.jsprit.examples.TransportOfDisabledPeople Maven / Gradle / Ivy
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* additional information regarding copyright ownership.
*
* GraphHopper GmbH licenses this file to you under the Apache License,
* Version 2.0 (the "License"); you may not use this file except in
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing, software
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package com.graphhopper.jsprit.examples;
import com.graphhopper.jsprit.analysis.toolbox.GraphStreamViewer;
import com.graphhopper.jsprit.analysis.toolbox.GraphStreamViewer.Label;
import com.graphhopper.jsprit.analysis.toolbox.Plotter;
import com.graphhopper.jsprit.core.algorithm.VehicleRoutingAlgorithm;
import com.graphhopper.jsprit.core.algorithm.box.Jsprit;
import com.graphhopper.jsprit.core.algorithm.state.StateManager;
import com.graphhopper.jsprit.core.algorithm.termination.IterationWithoutImprovementTermination;
import com.graphhopper.jsprit.core.problem.Location;
import com.graphhopper.jsprit.core.problem.VehicleRoutingProblem;
import com.graphhopper.jsprit.core.problem.VehicleRoutingProblem.FleetSize;
import com.graphhopper.jsprit.core.problem.constraint.ConstraintManager;
import com.graphhopper.jsprit.core.problem.constraint.HardRouteConstraint;
import com.graphhopper.jsprit.core.problem.job.Shipment;
import com.graphhopper.jsprit.core.problem.misc.JobInsertionContext;
import com.graphhopper.jsprit.core.problem.solution.VehicleRoutingProblemSolution;
import com.graphhopper.jsprit.core.problem.vehicle.VehicleImpl;
import com.graphhopper.jsprit.core.problem.vehicle.VehicleImpl.Builder;
import com.graphhopper.jsprit.core.problem.vehicle.VehicleType;
import com.graphhopper.jsprit.core.problem.vehicle.VehicleTypeImpl;
import com.graphhopper.jsprit.core.reporting.SolutionPrinter;
import com.graphhopper.jsprit.core.util.Coordinate;
import com.graphhopper.jsprit.core.util.Solutions;
import com.graphhopper.jsprit.util.Examples;
import java.util.Collection;
public class TransportOfDisabledPeople {
static int WHEELCHAIRSPACE_INDEX = 0;
static int PASSENGERSEATS_INDEX = 1;
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 wheelChairTypeBuilder = VehicleTypeImpl.Builder.newInstance("wheelChairBusType")
.addCapacityDimension(WHEELCHAIRSPACE_INDEX, 2) //can transport two people with wheelchair
.addCapacityDimension(PASSENGERSEATS_INDEX, 4); //and 4 without
VehicleType vehicleType_wheelchair = wheelChairTypeBuilder.build();
VehicleTypeImpl.Builder soleyPassengerTypeBuilder = VehicleTypeImpl.Builder.newInstance("passengerBusType")
.addCapacityDimension(PASSENGERSEATS_INDEX, 6); //and 4 without
VehicleType vehicleType_solelypassenger = soleyPassengerTypeBuilder.build();
/*
* define two vehicles and their locations.
*
* this example employs two vehicles. one that has to return to its start-location (vehicle1) and one that has a different
* end-location.
*
* play with these location to see which impact they have on customer-sequences.
*/
Builder vehicleBuilder1 = VehicleImpl.Builder.newInstance("wheelchair_bus");
vehicleBuilder1.setStartLocation(loc(Coordinate.newInstance(10, 10)));
vehicleBuilder1.setType(vehicleType_wheelchair);
VehicleImpl vehicle1 = vehicleBuilder1.build();
Builder vehicleBuilder1_2 = VehicleImpl.Builder.newInstance("wheelchair_bus_2");
vehicleBuilder1_2.setStartLocation(loc(Coordinate.newInstance(10, 10)));
vehicleBuilder1_2.setType(vehicleType_wheelchair);
VehicleImpl vehicle1_2 = vehicleBuilder1_2.build();
Builder vehicleBuilder2 = VehicleImpl.Builder.newInstance("passenger_bus");
vehicleBuilder2.setStartLocation(loc(Coordinate.newInstance(30, 30))).setEndLocation(loc(Coordinate.newInstance(30, 19)));
vehicleBuilder2.setType(vehicleType_solelypassenger);
VehicleImpl vehicle2 = vehicleBuilder2.build();
Builder vehicleBuilder2_2 = VehicleImpl.Builder.newInstance("passenger_bus_2");
vehicleBuilder2_2.setStartLocation(loc(Coordinate.newInstance(30, 30))).setEndLocation(loc(Coordinate.newInstance(30, 19)));
vehicleBuilder2_2.setType(vehicleType_solelypassenger);
VehicleImpl vehicle2_2 = vehicleBuilder2_2.build();
/*
* build shipments at the required locations, each with a capacity-demand of 1.
*
*/
Shipment shipment1 = Shipment.Builder.newInstance("wheelchair_1").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 7))).setDeliveryLocation(loc(Coordinate.newInstance(6, 9))).build();
Shipment shipment2 = Shipment.Builder.newInstance("2").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 13))).setDeliveryLocation(loc(Coordinate.newInstance(6, 11))).build();
Shipment shipment3 = Shipment.Builder.newInstance("wheelchair_2").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 7))).setDeliveryLocation(loc(Coordinate.newInstance(14, 9))).build();
Shipment shipment4 = Shipment.Builder.newInstance("4").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 13))).setDeliveryLocation(loc(Coordinate.newInstance(14, 11))).build();
Shipment shipment5 = Shipment.Builder.newInstance("wheelchair_3").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(25, 27))).setDeliveryLocation(loc(Coordinate.newInstance(26, 29))).build();
Shipment shipment6 = Shipment.Builder.newInstance("6").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(25, 33))).setDeliveryLocation(loc(Coordinate.newInstance(26, 31))).build();
Shipment shipment7 = Shipment.Builder.newInstance("7").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(35, 27))).setDeliveryLocation(loc(Coordinate.newInstance(34, 29))).build();
Shipment shipment8 = Shipment.Builder.newInstance("wheelchair_4").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(35, 33))).setDeliveryLocation(loc(Coordinate.newInstance(34, 31))).build();
Shipment shipment9 = Shipment.Builder.newInstance("9").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 27))).setDeliveryLocation(loc(Coordinate.newInstance(6, 29))).build();
Shipment shipment10 = Shipment.Builder.newInstance("wheelchair_5").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 33))).setDeliveryLocation(loc(Coordinate.newInstance(6, 31))).build();
Shipment shipment11 = Shipment.Builder.newInstance("11").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 27))).setDeliveryLocation(loc(Coordinate.newInstance(14, 29))).build();
Shipment shipment12 = Shipment.Builder.newInstance("wheelchair_6").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 33))).setDeliveryLocation(loc(Coordinate.newInstance(14, 31))).build();
Shipment shipment13 = Shipment.Builder.newInstance("13").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(25, 7))).setDeliveryLocation(loc(Coordinate.newInstance(26, 9))).build();
Shipment shipment14 = Shipment.Builder.newInstance("wheelchair_7").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(25, 13))).setDeliveryLocation(loc(Coordinate.newInstance(26, 11))).build();
Shipment shipment15 = Shipment.Builder.newInstance("15").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(35, 7))).setDeliveryLocation(loc(Coordinate.newInstance(34, 9))).build();
Shipment shipment16 = Shipment.Builder.newInstance("wheelchair_8").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(35, 13))).setDeliveryLocation(loc(Coordinate.newInstance(34, 11))).build();
Shipment shipment17 = Shipment.Builder.newInstance("17").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 14))).setDeliveryLocation(loc(Coordinate.newInstance(6, 16))).build();
Shipment shipment18 = Shipment.Builder.newInstance("wheelchair_9").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(5, 20))).setDeliveryLocation(loc(Coordinate.newInstance(6, 18))).build();
Shipment shipment19 = Shipment.Builder.newInstance("19").addSizeDimension(PASSENGERSEATS_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 14))).setDeliveryLocation(loc(Coordinate.newInstance(14, 16))).build();
Shipment shipment20 = Shipment.Builder.newInstance("wheelchair_10").addSizeDimension(WHEELCHAIRSPACE_INDEX, 1).setPickupLocation(loc(Coordinate.newInstance(15, 20))).setDeliveryLocation(loc(Coordinate.newInstance(14, 18))).build();
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle1).addVehicle(vehicle2).addVehicle(vehicle1_2).addVehicle(vehicle2_2);
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.addJob(shipment17).addJob(shipment18).addJob(shipment19).addJob(shipment20);
//you only have two vehicles
vrpBuilder.setFleetSize(FleetSize.FINITE);
/*
*
* wheelchair-bus can only pickup passenger where x<15
*/
HardRouteConstraint wheelchair_bus_passenger_pickup_constraint = new HardRouteConstraint() {
@Override
public boolean fulfilled(JobInsertionContext insertionContext) {
Shipment shipment2insert = ((Shipment) insertionContext.getJob());
if (insertionContext.getNewVehicle().getId().equals("wheelchair_bus")) {
if (shipment2insert.getSize().get(PASSENGERSEATS_INDEX) > 0) {
if (shipment2insert.getPickupLocation().getCoordinate().getX() > 15. || shipment2insert.getDeliveryLocation().getCoordinate().getX() > 15.) {
return false;
}
}
}
return true;
}
};
//build the problem
VehicleRoutingProblem problem = vrpBuilder.build();
StateManager stateManager = new StateManager(problem);
ConstraintManager constraintManager = new ConstraintManager(problem, stateManager);
constraintManager.addConstraint(wheelchair_bus_passenger_pickup_constraint);
VehicleRoutingAlgorithm algorithm = Jsprit.Builder.newInstance(problem).setStateAndConstraintManager(stateManager,constraintManager).buildAlgorithm();
algorithm.setPrematureAlgorithmTermination(new IterationWithoutImprovementTermination(100));
/*
* 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(problem, bestSolution, SolutionPrinter.Print.VERBOSE);
/*
* plot problem without solution
*/
Plotter problemPlotter = new Plotter(problem);
problemPlotter.plotShipments(true);
problemPlotter.setLabel(Plotter.Label.SIZE);
problemPlotter.plot("output/transportOfDisabledPeopleExample_problem.png", "disabled people tp");
Plotter solutionPlotter = new Plotter(problem, Solutions.bestOf(solutions));
solutionPlotter.plotShipments(true);
solutionPlotter.setLabel(Plotter.Label.SIZE);
solutionPlotter.plot("output/transportOfDisabledPeopleExample_solution.png", "disabled people tp");
new GraphStreamViewer(problem).labelWith(Label.ID).setRenderDelay(100).setRenderShipments(true).display();
new GraphStreamViewer(problem, Solutions.bestOf(solutions)).labelWith(Label.ACTIVITY).setRenderDelay(100).setRenderShipments(true).display();
}
private static Location loc(Coordinate coordinate) {
return Location.Builder.newInstance().setCoordinate(coordinate).build();
}
}
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