Package com.spatial4j.core.context

Examples of com.spatial4j.core.context.SpatialContext

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   */
  //TODO move this generic code elsewhere?  Spatial4j?
  protected Shape bufferShape(Shape shape, double distErr) {
    if (distErr <= 0)
      throw new IllegalArgumentException("distErr must be > 0");
    SpatialContext ctx = grid.getSpatialContext();
    if (shape instanceof Point) {
      return ctx.makeCircle((Point)shape, distErr);
    } else if (shape instanceof Circle) {
      Circle circle = (Circle) shape;
      double newDist = circle.getRadius() + distErr;
      if (ctx.isGeo() && newDist > 180)
        newDist = 180;
      return ctx.makeCircle(circle.getCenter(), newDist);
    } else {
      Rectangle bbox = shape.getBoundingBox();
      double newMinX = bbox.getMinX() - distErr;
      double newMaxX = bbox.getMaxX() + distErr;
      double newMinY = bbox.getMinY() - distErr;
      double newMaxY = bbox.getMaxY() + distErr;
      if (ctx.isGeo()) {
        if (newMinY < -90)
          newMinY = -90;
        if (newMaxY > 90)
          newMaxY = 90;
        if (newMinY == -90 || newMaxY == 90 || bbox.getWidth() + 2*distErr > 360) {
          newMinX = -180;
          newMaxX = 180;
        } else {
          newMinX = DistanceUtils.normLonDEG(newMinX);
          newMaxX = DistanceUtils.normLonDEG(newMaxX);
        }
      } else {
        //restrict to world bounds
        newMinX = Math.max(newMinX, ctx.getWorldBounds().getMinX());
        newMaxX = Math.min(newMaxX, ctx.getWorldBounds().getMaxX());
        newMinY = Math.max(newMinY, ctx.getWorldBounds().getMinY());
        newMaxY = Math.min(newMaxY, ctx.getWorldBounds().getMaxY());
      }
      return ctx.makeRectangle(newMinX, newMaxX, newMinY, newMaxY);
    }
  }
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    return ctx.makePoint(lon,midLat);
  }

  @Test
  public void testDistCalcPointOnBearing_cartesian() {
    ctx = new SpatialContext(false);
    EPS = 10e-6;//tighter epsilon (aka delta)
    for(int i = 0; i < 1000; i++) {
      testDistCalcPointOnBearing(randomInt(100));
    }
  }
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    assertEquals(Range.LongitudeRange.WORLD_180E180W, new Range.LongitudeRange(s.getBoundingBox()));
  }

  @Test
  public void testRectIntersect() {
    SpatialContext ctx = new SpatialContextFactory()
      {{geo = false; worldBounds = new RectangleImpl(-100, 100, -50, 50, null);}}.newSpatialContext();

    new ShapeCollectionRectIntersectionTestHelper(ctx).testRelateWithRectangle();
  }
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public class SpatialArgsTest {

  @Test
  public void calcDistanceFromErrPct() {
    final SpatialContext ctx = SpatialContext.GEO;
    final double DEP = 0.5;//distErrPct

    //the result is the diagonal distance from the center to the closest corner,
    // times distErrPct

    Shape superwide = ctx.makeRectangle(-180, 180, 0, 0);
    //0 distErrPct means 0 distance always
    assertEquals(0, SpatialArgs.calcDistanceFromErrPct(superwide, 0, ctx), 0);
    assertEquals(180 * DEP, SpatialArgs.calcDistanceFromErrPct(superwide, DEP, ctx), 0);

    Shape supertall = ctx.makeRectangle(0, 0, -90, 90);
    assertEquals(90 * DEP, SpatialArgs.calcDistanceFromErrPct(supertall, DEP, ctx), 0);

    Shape upperhalf = ctx.makeRectangle(-180, 180, 0, 90);
    assertEquals(45 * DEP, SpatialArgs.calcDistanceFromErrPct(upperhalf, DEP, ctx), 0.0001);

    Shape midCircle = ctx.makeCircle(0, 0, 45);
    assertEquals(60 * DEP, SpatialArgs.calcDistanceFromErrPct(midCircle, DEP, ctx), 0.0001);
  }
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  @ParametersFactory
  public static Iterable<Object[]> parameters() {
    List<Object[]> ctorArgs = new ArrayList<>();

    SpatialContext ctx = SpatialContext.GEO;
    SpatialPrefixTree grid;
    SpatialStrategy strategy;

    grid = new QuadPrefixTree(ctx,25);
    strategy = new RecursivePrefixTreeStrategy(grid, "recursive_quad");
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  @ParametersFactory
  public static Iterable<Object[]> parameters() {
    List<Object[]> ctorArgs = new ArrayList<>();

    SpatialContext ctx = SpatialContext.GEO;
    SpatialPrefixTree grid;
    SpatialStrategy strategy;

    grid = new GeohashPrefixTree(ctx,12);
    strategy = new RecursivePrefixTreeStrategy(grid, "recursive_geohash");
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  @Test
  public void testQueries() throws IOException {
    String name = StrategyTestCase.QTEST_Cities_Intersects_BBox;

    InputStream in = getClass().getClassLoader().getResourceAsStream(name);
    SpatialContext ctx = SpatialContext.GEO;
    Iterator<SpatialTestQuery> iter = SpatialTestQuery.getTestQueries(
        new SpatialArgsParser(), ctx, name, in );//closes the InputStream
    List<SpatialTestQuery> tests = new ArrayList<>();
    while( iter.hasNext() ) {
      tests.add( iter.next() );
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public class TestTermQueryPrefixGridStrategy extends SpatialTestCase {

  @Test
  public void testNGramPrefixGridLosAngeles() throws IOException {
    SpatialContext ctx = SpatialContext.GEO;
    TermQueryPrefixTreeStrategy prefixGridStrategy = new TermQueryPrefixTreeStrategy(new QuadPrefixTree(ctx), "geo");

    Shape point = ctx.makePoint(-118.243680, 34.052230);

    Document losAngeles = new Document();
    losAngeles.add(new StringField("name", "Los Angeles", Field.Store.YES));
    for (IndexableField field : prefixGridStrategy.createIndexableFields(point)) {
      losAngeles.add(field);
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      public String get(Object key) {
        return config.get("spatial." + key, null);
      }
    };

    SpatialContext ctx = SpatialContextFactory.makeSpatialContext(configMap, null);

    //Some day the strategy might be initialized with a factory but such a factory
    // is non-existent.
    return makeSpatialStrategy(config, configMap, ctx);
  }
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Related Classes of com.spatial4j.core.context.SpatialContext

  • com.spatial4j.core.distance.CartesianDistCalc
  • com.spatial4j.core.distance.TestDistances
  • com.spatial4j.core.shape.impl.BufferedLineString
  • com.spatial4j.core.shape.impl.CircleImpl
  • com.spatial4j.core.shape.impl.GeoCircle
  • com.spatial4j.core.shape.impl.PointImpl
  • com.spatial4j.core.shape.impl.RectangleImpl
  • com.spatial4j.core.shape.Rectangle
  • com.spatial4j.core.shape.Shape
  • com.spatial4j.core.shape.ShapeCollectionTest
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