com.spatial4j.core.shape.Circle Java Examples

/** Overloaded to provide a number format. */
public String writeShape(Shape shape, NumberFormat nf) {
  if (shape instanceof Point) {
    Point point = (Point) shape;
    return nf.format(point.getX()) + " " + nf.format(point.getY());
  } else if (shape instanceof Rectangle) {
    Rectangle rect = (Rectangle) shape;
    return nf.format(rect.getMinX()) + " " + nf.format(rect.getMinY()) + " " + nf.format(rect.getMaxX()) + " "
        + nf.format(rect.getMaxY());
  } else if (shape instanceof Circle) {
    Circle c = (Circle) shape;
    return "Circle(" + nf.format(c.getCenter().getX()) + " " + nf.format(c.getCenter().getY()) + " " + "d="
        + nf.format(c.getRadius()) + ")";
  }
  return shape.toString();
}
 

@Test
public void test28() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  ShapeReadWriter<SpatialContext> shapeReadWriter = new ShapeReadWriter<SpatialContext>(ctx);
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_KM));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  String writeSpatialArgs = SpatialArgsParser.writeSpatialArgs(args, shapeReadWriter);

  // This has to be done because of rounding.
  SpatialArgs spatialArgs = SpatialArgsParser.parse(writeSpatialArgs, shapeReadWriter);
  Query q1 = sq(strategy.makeQuery(spatialArgs));
  Query q = parseSq("a.id_gis:\"" + writeSpatialArgs + "\"");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Override
public Object evaluateRecord(OIdentifiable iRecord, ODocument iCurrentResult, OSQLFilterCondition iCondition, Object iLeft,
    Object iRight, OCommandContext iContext) {

  List<Number> left = (List<Number>) iLeft;

  double lat = left.get(0).doubleValue();
  double lon = left.get(1).doubleValue();

  Shape shape = SpatialContext.GEO.makePoint(lon, lat);
  List<Number> right = (List<Number>) iRight;

  double lat1 =  right.get(0).doubleValue();
  double lon1 =  right.get(1).doubleValue();
  Shape shape1 = SpatialContext.GEO.makePoint(lon1, lat1);

  Map map = (Map) right.get(2);
  double distance = 0;

  Number n = (Number) map.get("maxDistance");
  if (n != null) {
    distance = n.doubleValue();
  }
  Point p = (Point) shape1;
  Circle circle = SpatialContext.GEO.makeCircle(p.getX(), p.getY(),
      DistanceUtils.dist2Degrees(distance, DistanceUtils.EARTH_MEAN_RADIUS_KM));
  double docDistDEG = SpatialContext.GEO.getDistCalc().distance((Point) shape, p);
  final double docDistInKM = DistanceUtils.degrees2Dist(docDistDEG, DistanceUtils.EARTH_EQUATORIAL_RADIUS_KM);
  iContext.setVariable("distance", docDistInKM);
  return shape.relate(circle) == SpatialRelation.WITHIN;
}
 

@Test
public void test29() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_KM));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  Query q1 = sq(strategy.makeQuery(args));
  Query q = parseSq("a.id_gis:\"Intersects(Circle(33.000000,-80.000000 d=10.0km))\"");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Test
public void test30() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_MI));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  Query q1 = sq(strategy.makeQuery(args));
  Query q = parseSq("a.id_gis:\"Intersects(Circle(33.000000,-80.000000 d=10.0m))\"");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Test
public void test45() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_MI));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  Query q1 = sq(bq(bc_m(strategy.makeQuery(args))));
  Query q = parseSq("<+a.id_gis:\"Intersects(Circle(33.000000,-80.000000 d=10.0m))\">");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Test
public void test46() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_MI));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  Query q1 = sq(bq(bc_m(strategy.makeQuery(args)), bc(tq("rowid", "12345"))));
  Query q = parseSq("<+a.id_gis:\"Intersects(Circle(33.000000,-80.000000 d=10.0m))\" rowid:12345>");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Test
public void test47() throws ParseException {
  SpatialContext ctx = SpatialContext.GEO;
  int maxLevels = 11;
  SpatialPrefixTree grid = new GeohashPrefixTree(ctx, maxLevels);
  RecursivePrefixTreeStrategy strategy = new RecursivePrefixTreeStrategy(grid, "a.id_gis", false);
  Circle circle = ctx.makeCircle(-80.0, 33.0, DistanceUtils.dist2Degrees(10, DistanceUtils.EARTH_MEAN_RADIUS_MI));
  SpatialArgs args = new SpatialArgs(SpatialOperation.Intersects, circle);

  Query q1 = sq(strategy.makeQuery(args));
  Query q = parseSq("<a.id_gis:\"Intersects(Circle(33.000000,-80.000000 d=10.0m))\">");
  boolean equals = q1.equals(q);
  assertTrue(equals);
}
 

@Override
public Circle build() {
    return SPATIAL_CONTEXT.makeCircle(center.x, center.y, 360 * radius / unit.getEarthCircumference());
}