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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
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jsprit-examples/src/main/java/examples/CostMatrixExample.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.Solutions;
import util.VehicleRoutingTransportCostsMatrix;
import algorithms.GreedySchrimpfFactory;
import algorithms.VehicleRoutingAlgorithms;
import analysis.SolutionPlotter;
import analysis.SolutionPrinter;
import analysis.SolutionPrinter.Print;
import basics.Service;
import basics.VehicleRoutingAlgorithm;
import basics.VehicleRoutingProblem;
import basics.VehicleRoutingProblem.FleetSize;
import basics.VehicleRoutingProblemSolution;
import basics.costs.VehicleRoutingTransportCosts;
import basics.route.Vehicle;
import basics.route.VehicleImpl;
import basics.route.VehicleType;
import basics.route.VehicleTypeImpl;
/**
* Illustrates how you can use jsprit with an already compiled distance and time matrix.
*
* @author schroeder
*
*/
public class CostMatrixExample {
/**
* @param args
*/
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");
}
VehicleType type = VehicleTypeImpl.Builder.newInstance("type", 2).setCostPerDistance(1).setCostPerTime(2).build();
Vehicle vehicle = VehicleImpl.Builder.newInstance("vehicle").setLocationId("0").setType(type).build();
Service s1 = Service.Builder.newInstance("1", 1).setLocationId("1").build();
Service s2 = Service.Builder.newInstance("2", 1).setLocationId("2").build();
Service s3 = Service.Builder.newInstance("3", 1).setLocationId("3").build();
/*
* Assume the following symmetric distance-matrix
* from,to,distance
* 0,1,10.0
* 0,2,20.0
* 0,3,5.0
* 1,2,4.0
* 1,3,1.0
* 2,3,2.0
*
* and this time-matrix
* 0,1,5.0
* 0,2,10.0
* 0,3,2.5
* 1,2,2.0
* 1,3,0.5
* 2,3,1.0
*/
//define a matrix-builder building a symmetric matrix
VehicleRoutingTransportCostsMatrix.Builder costMatrixBuilder = VehicleRoutingTransportCostsMatrix.Builder.newInstance(true);
costMatrixBuilder.addTransportDistance("0", "1", 10.0);
costMatrixBuilder.addTransportDistance("0", "2", 20.0);
costMatrixBuilder.addTransportDistance("0", "3", 5.0);
costMatrixBuilder.addTransportDistance("1", "2", 4.0);
costMatrixBuilder.addTransportDistance("1", "3", 1.0);
costMatrixBuilder.addTransportDistance("2", "3", 2.0);
costMatrixBuilder.addTransportTime("0", "1", 10.0);
costMatrixBuilder.addTransportTime("0", "2", 20.0);
costMatrixBuilder.addTransportTime("0", "3", 5.0);
costMatrixBuilder.addTransportTime("1", "2", 4.0);
costMatrixBuilder.addTransportTime("1", "3", 1.0);
costMatrixBuilder.addTransportTime("2", "3", 2.0);
VehicleRoutingTransportCosts costMatrix = costMatrixBuilder.build();
VehicleRoutingProblem vrp = VehicleRoutingProblem.Builder.newInstance().setFleetSize(FleetSize.INFINITE).setRoutingCost(costMatrix)
.addVehicle(vehicle).addService(s1).addService(s2).addService(s3).build();
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/fastAlgo.xml");
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
SolutionPrinter.print(Solutions.getBest(solutions), Print.VERBOSE);
SolutionPlotter.plotSolutionAsPNG(vrp, Solutions.getBest(solutions), "output/yo.png", "po");
}
}