* Finally, the problem can be built. By default, transportCosts are crowFlyDistances (as usually used for vrp-instances).
*/
// vrpBuilder.addProblemConstraint(Constraint.DELIVERIES_FIRST);
VehicleRoutingProblem vrp = vrpBuilder.build();
Plotter pblmPlotter = new Plotter(vrp);
pblmPlotter.plot("output/solomon_C101_specifiedVehicleEndLocations_withoutTWs.png","C101");
/*
* Define the required vehicle-routing algorithms to solve the above problem.
*
* The algorithm can be defined and configured in an xml-file.
*/
// VehicleRoutingAlgorithm vra = new SchrimpfFactory().createAlgorithm(vrp);
VehicleRoutingAlgorithm vra = VehicleRoutingAlgorithms.readAndCreateAlgorithm(vrp, "input/algorithmConfigWithSchrimpfAcceptance.xml");
vra.setMaxIterations(20000);
// vra.setPrematureBreak(100);
// vra.getAlgorithmListeners().addListener(new AlgorithmSearchProgressChartListener("output/sol_progress.png"));
/*
* Solve the problem.
*
*
*/
Collection<VehicleRoutingProblemSolution> solutions = vra.searchSolutions();
/*
* Retrieve best solution.
*/
VehicleRoutingProblemSolution solution = new SelectBest().selectSolution(solutions);
/*
* print solution
*/
SolutionPrinter.print(solution);
/*
* Plot solution.
*/
// SolutionPlotter.plotSolutionAsPNG(vrp, solution, "output/solomon_C101_specifiedVehicleEndLocations_solution.png","C101");
Plotter solPlotter = new Plotter(vrp, solution);
solPlotter.plot("output/solomon_C101_specifiedVehicleEndLocations_withoutTWs_solution.png","C101");
new GraphStreamViewer(vrp, solution).setRenderDelay(50).labelWith(Label.ID).setEnableAutoLayout(true).display();