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prepare for release v0.1.0

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Stefan Schroeder 2013-11-22 16:54:15 +01:00
parent 77d38de461
commit a85b0fc395
304 changed files with 4035 additions and 64795 deletions
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jsprit-examples/src/main/java/examples/SimpleVRPWithBackhaulsExample.java
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/*******************************************************************************
* 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 <http://www.gnu.org/licenses/>.
******************************************************************************/
package examples;
import java.io.File;
import java.util.Collection;
import util.Coordinate;
import util.Solutions;
import algorithms.SchrimpfFactory;
import analysis.Plotter;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.Plotter.Label;
import analysis.SolutionPrinter.Print;
import basics.Delivery;
import basics.Pickup;
import basics.Service;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.Constraint;
import basics.VehicleRoutingProblemSolution;
import basics.io.VrpXMLWriter;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
import basics.route.VehicleImpl.Builder;
import basics.route.VehicleType;
import basics.route.VehicleTypeImpl;
public class SimpleVRPWithBackhaulsExample {
public static void main(String[] args) {
/*
* some preparation - create output folder
*/
File dir = new File("output");
// if the directory does not exist, create it
if (!dir.exists()){
System.out.println("creating directory ./output");
boolean result = dir.mkdir();
if(result) System.out.println("./output created");
}
/*
* 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", 2);
VehicleType vehicleType = vehicleTypeBuilder.build();
/*
* get a vehicle-builder and build a vehicle located at (10,10) with type "vehicleType"
*/
Builder vehicleBuilder = VehicleImpl.Builder.newInstance("vehicle");
vehicleBuilder.setLocationCoord(Coordinate.newInstance(10, 10));
vehicleBuilder.setType(vehicleType);
Vehicle vehicle = vehicleBuilder.build();
/*
* build pickups and deliveries at the required locations, each with a capacity-demand of 1.
*/
Pickup pickup1 = (Pickup) Pickup.Builder.newInstance("1", 1).setCoord(Coordinate.newInstance(5, 7)).build();
Delivery delivery1 = (Delivery) Delivery.Builder.newInstance("2", 1).setCoord(Coordinate.newInstance(5, 13)).build();
Pickup pickup2 = (Pickup) Pickup.Builder.newInstance("3", 1).setCoord(Coordinate.newInstance(15, 7)).build();
Delivery delivery2 = (Delivery) Delivery.Builder.newInstance("4", 1).setCoord(Coordinate.newInstance(15, 13)).build();
VehicleRoutingProblem.Builder vrpBuilder = VehicleRoutingProblem.Builder.newInstance();
vrpBuilder.addVehicle(vehicle);
vrpBuilder.addService(pickup1).addService(pickup2).addService(delivery1).addService(delivery2);
//
vrpBuilder.addProblemConstraint(Constraint.DELIVERIES_FIRST);
VehicleRoutingProblem problem = vrpBuilder.build();
/*
* get the algorithm out-of-the-box.
*/
VehicleRoutingAlgorithm algorithm = new SchrimpfFactory().createAlgorithm(problem);
/*
* and search a solution
*/
Collection<VehicleRoutingProblemSolution> solutions = algorithm.searchSolutions();
/*
* get the best
*/
VehicleRoutingProblemSolution bestSolution = Solutions.getBest(solutions);
new VrpXMLWriter(problem, solutions).write("output/problem-with-solution.xml");
SolutionPrinter.print(bestSolution,Print.VERBOSE);
/*
* plot
*/
Plotter plotter = new Plotter(problem,bestSolution);
plotter.setLabel(Label.SIZE);
plotter.setShowFirstActivity(true);
plotter.plot("output/solution.png", "solution");
}
}