Package aima.core.search.framework

Examples of aima.core.search.framework.HeuristicFunction

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      result.add(new Position(fromRNode.getLat(), fromRNode.getLon()));
      for (int i = 1; i < locs.size()
          && !CancelableThread.currIsCanceled(); i++) {
        MapNode toRNode = mapData.getNearestWayNode(new Position(locs
            .get(i)), wayFilter);
        HeuristicFunction hf = createHeuristicFunction(toRNode,
            waySelection);
        Problem problem = createProblem(fromRNode, toRNode, mapData,
            wayFilter, ignoreOneways, waySelection);
        Search search = new AStarSearch(new GraphSearch(), hf);
        List<Action> actions = search.search(problem);
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  public void setUp() {
    envChanges = new StringBuffer();

    aMap = new SimplifiedRoadMapOfPartOfRomania();

    HeuristicFunction heuristicFunction = new HeuristicFunction() {
      public double h(Object state) {
        Point2D pt1 = aMap.getPosition((String) state);
        Point2D pt2 = aMap
            .getPosition(SimplifiedRoadMapOfPartOfRomania.BUCHAREST);
        return pt1.distance(pt2);
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    Problem problem = new Problem("start",
        MapFunctionFactory.getActionsFunction(map),
        MapFunctionFactory.getResultFunction(), new DefaultGoalTest(
            "goal"), new MapStepCostFunction(map));

    HeuristicFunction hf = new HeuristicFunction() {
      public double h(Object state) {
        return 0; // Don't have one for this test
      }
    };
    Search search = new AStarSearch(new GraphSearch(), hf);
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    aMap.addBidirectionalLink("A", "B", 4.0);
    aMap.addBidirectionalLink("B", "C", 4.0);
    aMap.addBidirectionalLink("C", "D", 4.0);
    aMap.addBidirectionalLink("D", "E", 4.0);
    aMap.addBidirectionalLink("E", "F", 4.0);
    hf = new HeuristicFunction() {
      public double h(Object state) {
        return 1;
      }
    };
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Related Classes of aima.core.search.framework.HeuristicFunction

  • aima.test.core.unit.search.informed.AStarSearchTest
  • aima.test.core.unit.search.informed.RecursiveBestFirstSearchTest
  • aima.test.core.unit.search.online.LRTAStarAgentTest
  • aimax.osm.routing.RouteCalculator
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