コード例 #1
0
  @Test
  public void testPathRecursiveUnpacking() {
    // use an encoder where it is possible to store 2 weights per edge
    FlagEncoder encoder = new Bike2WeightFlagEncoder();
    ShortestWeighting weighting = new ShortestWeighting(encoder);
    EncodingManager em = new EncodingManager(encoder);
    GraphHopperStorage ghStorage =
        createGHStorage(em, Collections.<Weighting>singleton(weighting), false);
    CHGraphImpl g2 = (CHGraphImpl) ghStorage.getGraph(CHGraph.class, weighting);
    g2.edge(0, 1, 1, true);
    EdgeIteratorState iter1_1 = g2.edge(0, 2, 1.4, false);
    EdgeIteratorState iter1_2 = g2.edge(2, 5, 1.4, false);
    g2.edge(1, 2, 1, true);
    g2.edge(1, 3, 3, true);
    g2.edge(2, 3, 1, true);
    g2.edge(4, 3, 1, true);
    g2.edge(2, 5, 1.4, true);
    g2.edge(3, 5, 1, true);
    g2.edge(5, 6, 1, true);
    g2.edge(4, 6, 1, true);
    g2.edge(6, 7, 1, true);
    EdgeIteratorState iter2_2 = g2.edge(5, 7);
    iter2_2.setDistance(1.4).setFlags(encoder.setProperties(10, true, false));

    ghStorage.freeze();
    // simulate preparation
    CHEdgeIteratorState iter2_1 = g2.shortcut(0, 5);
    iter2_1.setDistance(2.8).setFlags(encoder.setProperties(10, true, false));
    iter2_1.setSkippedEdges(iter1_1.getEdge(), iter1_2.getEdge());
    CHEdgeIteratorState tmp = g2.shortcut(0, 7);
    tmp.setDistance(4.2).setFlags(encoder.setProperties(10, true, false));
    tmp.setSkippedEdges(iter2_1.getEdge(), iter2_2.getEdge());
    g2.setLevel(1, 0);
    g2.setLevel(3, 1);
    g2.setLevel(4, 2);
    g2.setLevel(6, 3);
    g2.setLevel(2, 4);
    g2.setLevel(5, 5);
    g2.setLevel(7, 6);
    g2.setLevel(0, 7);

    AlgorithmOptions opts = new AlgorithmOptions(AlgorithmOptions.DIJKSTRA_BI, encoder, weighting);
    Path p =
        new PrepareContractionHierarchies(
                new GHDirectory("", DAType.RAM_INT),
                ghStorage,
                g2,
                encoder,
                weighting,
                TraversalMode.NODE_BASED)
            .createAlgo(g2, opts)
            .calcPath(0, 7);

    assertEquals(Helper.createTList(0, 2, 5, 7), p.calcNodes());
    assertEquals(1064, p.getTime());
    assertEquals(4.2, p.getDistance(), 1e-5);
  }
コード例 #2
0
 @Test
 public void testUnpackingOrder_Fastest() {
   LevelGraphStorage g = (LevelGraphStorage) createGraph();
   PrepareContractionHierarchies prepare = new PrepareContractionHierarchies().graph(g);
   WeightCalculation calc = new FastestCalc(carEncoder);
   initUnpackingGraph(g, calc);
   RoutingAlgorithm algo = prepare.type(calc).vehicle(carEncoder).createAlgo();
   Path p = algo.calcPath(10, 6);
   assertEquals(7, p.distance(), 1e-1);
   assertEquals(Helper.createTList(10, 0, 1, 2, 3, 4, 5, 6), p.calcNodes());
 }
コード例 #3
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 @Test
 public void testRoundaboutUnpacking() {
   LevelGraph g = createGraph();
   initRoundaboutGraph(g);
   int old = g.getAllEdges().maxId();
   PrepareContractionHierarchies prepare = new PrepareContractionHierarchies().graph(g);
   prepare.doWork();
   assertEquals(old + 25, g.getAllEdges().maxId());
   RoutingAlgorithm algo = prepare.createAlgo();
   Path p = algo.calcPath(4, 7);
   assertEquals(Helper.createTList(4, 5, 6, 7), p.calcNodes());
 }
コード例 #4
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  @Test
  public void testDirectedGraph2() {
    LevelGraph g = createGraph();
    initDirected2(g);
    int old = GHUtility.count(g.getAllEdges());
    PrepareContractionHierarchies prepare = new PrepareContractionHierarchies().graph(g);
    prepare.doWork();
    // PrepareTowerNodesShortcutsTest.printEdges(g);
    assertEquals(old + 15, GHUtility.count(g.getAllEdges()));
    RoutingAlgorithm algo = prepare.createAlgo();

    Path p = algo.calcPath(0, 10);
    assertEquals(10, p.distance(), 1e-6);
    assertEquals(Helper.createTList(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10), p.calcNodes());
  }
コード例 #5
0
  @Test
  public void testPathRecursiveUnpacking() {
    // use an encoder where it is possible to store 2 weights per edge
    FlagEncoder encoder = new Bike2WeightFlagEncoder();
    EncodingManager em = new EncodingManager(encoder);
    LevelGraphStorage g2 = (LevelGraphStorage) createGraph(em, false);
    g2.edge(0, 1, 1, true);
    EdgeIteratorState iter1_1 = g2.edge(0, 2, 1.4, false);
    EdgeIteratorState iter1_2 = g2.edge(2, 5, 1.4, false);
    g2.edge(1, 2, 1, true);
    g2.edge(1, 3, 3, true);
    g2.edge(2, 3, 1, true);
    g2.edge(4, 3, 1, true);
    g2.edge(2, 5, 1.4, true);
    g2.edge(3, 5, 1, true);
    g2.edge(5, 6, 1, true);
    g2.edge(4, 6, 1, true);
    g2.edge(6, 7, 1, true);
    EdgeIteratorState iter2_2 = g2.edge(5, 7);
    iter2_2.setDistance(1.4).setFlags(encoder.setProperties(10, true, false));

    // simulate preparation
    EdgeSkipIterState iter2_1 = g2.shortcut(0, 5);
    iter2_1.setDistance(2.8).setFlags(encoder.setProperties(10, true, false));
    iter2_1.setSkippedEdges(iter1_1.getEdge(), iter1_2.getEdge());
    EdgeSkipIterState tmp = g2.shortcut(0, 7);
    tmp.setDistance(4.2).setFlags(encoder.setProperties(10, true, false));
    tmp.setSkippedEdges(iter2_1.getEdge(), iter2_2.getEdge());
    g2.setLevel(1, 0);
    g2.setLevel(3, 1);
    g2.setLevel(4, 2);
    g2.setLevel(6, 3);
    g2.setLevel(2, 4);
    g2.setLevel(5, 5);
    g2.setLevel(7, 6);
    g2.setLevel(0, 7);

    Path p =
        new PrepareContractionHierarchies(encoder, new ShortestWeighting())
            .setGraph(g2)
            .createAlgo()
            .calcPath(0, 7);

    assertEquals(Helper.createTList(0, 2, 5, 7), p.calcNodes());
    assertEquals(1064, p.getMillis());
    assertEquals(4.2, p.getDistance(), 1e-5);
  }
コード例 #6
0
 @Test
 public void testDirectedGraph() {
   LevelGraph g = createGraph();
   g.edge(5, 4, 3, false);
   g.edge(4, 5, 10, false);
   g.edge(2, 4, 1, false);
   g.edge(5, 2, 1, false);
   g.edge(3, 5, 1, false);
   g.edge(4, 3, 1, false);
   int old = GHUtility.count(g.getAllEdges());
   PrepareContractionHierarchies prepare = new PrepareContractionHierarchies().graph(g);
   prepare.doWork();
   // PrepareTowerNodesShortcutsTest.printEdges(g);
   assertEquals(old + 3, GHUtility.count(g.getAllEdges()));
   RoutingAlgorithm algo = prepare.createAlgo();
   Path p = algo.calcPath(4, 2);
   assertEquals(3, p.distance(), 1e-6);
   assertEquals(Helper.createTList(4, 3, 5, 2), p.calcNodes());
 }
コード例 #7
0
  @Test
  public void testBaseGraph() {
    CarFlagEncoder carFE = new CarFlagEncoder();
    AlgorithmOptions opts =
        AlgorithmOptions.start().flagEncoder(carFE).weighting(new ShortestWeighting(carFE)).build();
    GraphHopperStorage ghStorage =
        createGHStorage(
            new EncodingManager(carFE), Collections.singleton(opts.getWeighting()), false);
    initDirectedAndDiffSpeed(ghStorage, carFE);

    // do CH preparation for car
    createFactory(ghStorage, opts);

    // use base graph for solving normal Dijkstra
    Path p1 = new RoutingAlgorithmFactorySimple().createAlgo(ghStorage, defaultOpts).calcPath(0, 3);
    assertEquals(Helper.createTList(0, 1, 5, 2, 3), p1.calcNodes());
    assertEquals(p1.toString(), 402.29, p1.getDistance(), 1e-2);
    assertEquals(p1.toString(), 144823, p1.getTime());
  }
コード例 #8
0
ファイル: GraphHopper.java プロジェクト: rchampa/graphhopper
  @Override
  public GHResponse route(GHRequest request) {
    request.check();
    StopWatch sw = new StopWatch().start();
    GHResponse rsp = new GHResponse();

    if (!setSupportsVehicle(request.getVehicle())) {
      rsp.addError(
          new IllegalArgumentException(
              "Vehicle "
                  + request.getVehicle()
                  + " unsupported. Supported are: "
                  + getEncodingManager()));
      return rsp;
    }

    EdgeFilter edgeFilter = new DefaultEdgeFilter(encodingManager.getEncoder(request.getVehicle()));
    int from =
        index
            .findClosest(request.getFrom().lat, request.getFrom().lon, edgeFilter)
            .getClosestNode();
    int to =
        index.findClosest(request.getTo().lat, request.getTo().lon, edgeFilter).getClosestNode();
    String debug = "idLookup:" + sw.stop().getSeconds() + "s";

    if (from < 0)
      rsp.addError(new IllegalArgumentException("Cannot find point 1: " + request.getFrom()));

    if (to < 0)
      rsp.addError(new IllegalArgumentException("Cannot find point 2: " + request.getTo()));

    if (from == to) rsp.addError(new IllegalArgumentException("Point 1 is equal to point 2"));

    sw = new StopWatch().start();
    RoutingAlgorithm algo = null;

    if (chUsage) {
      if (request.getAlgorithm().equals("dijkstrabi")) algo = prepare.createAlgo();
      else if (request.getAlgorithm().equals("astarbi"))
        algo = ((PrepareContractionHierarchies) prepare).createAStar();
      else
        rsp.addError(
            new IllegalStateException(
                "Only dijkstrabi and astarbi is supported for LevelGraph (using contraction hierarchies)!"));

    } else {
      prepare =
          NoOpAlgorithmPreparation.createAlgoPrepare(
              graph,
              request.getAlgorithm(),
              encodingManager.getEncoder(request.getVehicle()),
              request.getType());
      algo = prepare.createAlgo();
    }

    if (rsp.hasErrors()) {
      return rsp;
    }
    debug += ", algoInit:" + sw.stop().getSeconds() + "s";

    sw = new StopWatch().start();
    Path path = algo.calcPath(from, to);
    debug +=
        ", "
            + algo.getName()
            + "-routing:"
            + sw.stop().getSeconds()
            + "s"
            + ", "
            + path.getDebugInfo();
    PointList points = path.calcPoints();
    simplifyRequest = request.getHint("simplifyRequest", simplifyRequest);
    if (simplifyRequest) {
      sw = new StopWatch().start();
      int orig = points.getSize();
      double minPathPrecision = request.getHint("douglas.minprecision", 1d);
      if (minPathPrecision > 0) {
        new DouglasPeucker().setMaxDistance(minPathPrecision).simplify(points);
      }
      debug +=
          ", simplify (" + orig + "->" + points.getSize() + "):" + sw.stop().getSeconds() + "s";
    }

    enableInstructions = request.getHint("instructions", enableInstructions);
    if (enableInstructions) {
      sw = new StopWatch().start();
      rsp.setInstructions(path.calcInstructions());
      debug += ", instructions:" + sw.stop().getSeconds() + "s";
    }
    return rsp.setPoints(points)
        .setDistance(path.getDistance())
        .setTime(path.getTime())
        .setDebugInfo(debug);
  }
コード例 #9
0
  public void runShortestPathPerf(int runs, RoutingAlgorithm algo) throws Exception {
    BBox bbox = unterfrankenGraph.getBounds();
    double minLat = bbox.minLat, minLon = bbox.minLon;
    double maxLat = bbox.maxLat, maxLon = bbox.maxLon;
    if (unterfrankenGraph instanceof LevelGraph) {
      if (algo instanceof DijkstraBidirectionRef)
        algo = new PrepareContractionHierarchies().setGraph(unterfrankenGraph).createAlgo();
      //                algo = new
      // PrepareSimpleShortcuts().setGraph(unterfrankenGraph).createAlgo();
      else if (algo instanceof AStarBidirection)
        algo = new PrepareSimpleShortcuts().setGraph(unterfrankenGraph).createAStar();
      else
        // level graph accepts all algorithms but normally we want to use an optimized one
        throw new IllegalStateException(
            "algorithm which boosts query time for levelgraph not found " + algo);
      logger.info("[experimental] using shortcuts with " + algo);
    } else logger.info("running " + algo);

    Random rand = new Random(123);
    StopWatch sw = new StopWatch();

    // System.out.println("cap:" + ((GraphStorage) unterfrankenGraph).capacity());
    for (int i = 0; i < runs; i++) {
      double fromLat = rand.nextDouble() * (maxLat - minLat) + minLat;
      double fromLon = rand.nextDouble() * (maxLon - minLon) + minLon;
      //            sw.start();
      int from = idx.findID(fromLat, fromLon);
      double toLat = rand.nextDouble() * (maxLat - minLat) + minLat;
      double toLon = rand.nextDouble() * (maxLon - minLon) + minLon;
      int to = idx.findID(toLat, toLon);
      //            sw.stop();
      //                logger.info(i + " " + sw + " from (" + from + ")" + fromLat + ", " + fromLon
      // + " to (" + to + ")" + toLat + ", " + toLon);
      if (from == to) {
        logger.warn("skipping i " + i + " from==to " + from);
        continue;
      }

      algo.clear();
      sw.start();
      Path p = algo.calcPath(from, to);
      sw.stop();
      if (!p.found()) {
        // there are still paths not found cause of oneway motorways => only routable in one
        // direction
        // e.g. unterfrankenGraph.getLatitude(798809) + "," + unterfrankenGraph.getLongitude(798809)
        logger.warn(
            "no route found for i="
                + i
                + " !? "
                + "graph-from "
                + from
                + "("
                + fromLat
                + ","
                + fromLon
                + "), "
                + "graph-to "
                + to
                + "("
                + toLat
                + ","
                + toLon
                + ")");
        continue;
      }
      if (i % 20 == 0)
        logger.info(i + " " + sw.getSeconds() / (i + 1) + " secs/run"); // (" + p + ")");
    }
  }
コード例 #10
0
  @Test
  public void testBaseGraphMultipleVehicles() {
    AlgorithmOptions footOptions =
        AlgorithmOptions.start()
            .flagEncoder(footEncoder)
            .weighting(new FastestWeighting(footEncoder))
            .build();
    AlgorithmOptions carOptions =
        AlgorithmOptions.start()
            .flagEncoder(carEncoder)
            .weighting(new FastestWeighting(carEncoder))
            .build();

    GraphHopperStorage g =
        createGHStorage(
            encodingManager,
            Arrays.asList(footOptions.getWeighting(), carOptions.getWeighting()),
            false);
    initFootVsCar(g);

    // do CH preparation for car
    RoutingAlgorithmFactory contractedFactory = createFactory(g, carOptions);

    // use contracted graph
    Path p1 =
        contractedFactory
            .createAlgo(getGraph(g, carOptions.getWeighting()), carOptions)
            .calcPath(0, 7);
    assertEquals(Helper.createTList(0, 4, 6, 7), p1.calcNodes());
    assertEquals(p1.toString(), 15000, p1.getDistance(), 1e-6);

    // use base graph for solving normal Dijkstra via car
    Path p2 = new RoutingAlgorithmFactorySimple().createAlgo(g, carOptions).calcPath(0, 7);
    assertEquals(Helper.createTList(0, 4, 6, 7), p2.calcNodes());
    assertEquals(p2.toString(), 15000, p2.getDistance(), 1e-6);
    assertEquals(p2.toString(), 2700 * 1000, p2.getTime());

    // use base graph for solving normal Dijkstra via foot
    Path p3 = new RoutingAlgorithmFactorySimple().createAlgo(g, footOptions).calcPath(0, 7);
    assertEquals(p3.toString(), 17000, p3.getDistance(), 1e-6);
    assertEquals(p3.toString(), 12240 * 1000, p3.getTime());
    assertEquals(Helper.createTList(0, 4, 5, 7), p3.calcNodes());
  }