| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.lucene.spatial3d.geom; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| |
| /** |
| * This GeoBBox represents an area rectangle of one specific latitude with |
| * no longitude bounds. |
| * |
| * @lucene.internal |
| */ |
| class GeoDegenerateLatitudeZone extends GeoBaseBBox { |
| /** The latitude */ |
| protected final double latitude; |
| /** Sine of the latitude */ |
| protected final double sinLatitude; |
| /** Plane describing the latitude zone */ |
| protected final Plane plane; |
| /** A point on the world that's also on the zone */ |
| protected final GeoPoint interiorPoint; |
| /** An array consisting of the interiorPoint */ |
| protected final GeoPoint[] edgePoints; |
| /** No notable points */ |
| protected final static GeoPoint[] planePoints = new GeoPoint[0]; |
| |
| /** Constructor. |
| *@param planetModel is the planet model to use. |
| *@param latitude is the latitude of the latitude zone. |
| */ |
| public GeoDegenerateLatitudeZone(final PlanetModel planetModel, final double latitude) { |
| super(planetModel); |
| this.latitude = latitude; |
| |
| this.sinLatitude = Math.sin(latitude); |
| double cosLatitude = Math.cos(latitude); |
| this.plane = new Plane(planetModel, sinLatitude); |
| // Compute an interior point. |
| interiorPoint = new GeoPoint(planetModel, sinLatitude, 0.0, cosLatitude, 1.0); |
| edgePoints = new GeoPoint[]{interiorPoint}; |
| } |
| |
| /** |
| * Constructor for deserialization. |
| * @param planetModel is the planet model. |
| * @param inputStream is the input stream. |
| */ |
| public GeoDegenerateLatitudeZone(final PlanetModel planetModel, final InputStream inputStream) throws IOException { |
| this(planetModel, SerializableObject.readDouble(inputStream)); |
| } |
| |
| @Override |
| public void write(final OutputStream outputStream) throws IOException { |
| SerializableObject.writeDouble(outputStream, latitude); |
| } |
| |
| @Override |
| public GeoBBox expand(final double angle) { |
| double newTopLat = latitude + angle; |
| double newBottomLat = latitude - angle; |
| return GeoBBoxFactory.makeGeoBBox(planetModel, newTopLat, newBottomLat, -Math.PI, Math.PI); |
| } |
| |
| @Override |
| public boolean isWithin(final double x, final double y, final double z) { |
| return Math.abs(z - this.sinLatitude) < 1e-10; |
| } |
| |
| @Override |
| public double getRadius() { |
| return Math.PI; |
| } |
| |
| @Override |
| public GeoPoint getCenter() { |
| // Totally arbitrary |
| return interiorPoint; |
| } |
| |
| @Override |
| public GeoPoint[] getEdgePoints() { |
| return edgePoints; |
| } |
| |
| @Override |
| public boolean intersects(final Plane p, final GeoPoint[] notablePoints, final Membership... bounds) { |
| return p.intersects(planetModel, plane, notablePoints, planePoints, bounds); |
| } |
| |
| @Override |
| public boolean intersects(final GeoShape geoShape) { |
| return geoShape.intersects(plane, planePoints); |
| } |
| |
| @Override |
| public void getBounds(Bounds bounds) { |
| super.getBounds(bounds); |
| bounds.noLongitudeBound() |
| .addHorizontalPlane(planetModel, latitude, plane); |
| } |
| |
| @Override |
| public int getRelationship(final GeoShape path) { |
| // Second, the shortcut of seeing whether endpoints are in/out is not going to |
| // work with no area endpoints. So we rely entirely on intersections. |
| //System.out.println("Got here! latitude="+latitude+" path="+path); |
| |
| if (intersects(path)) { |
| return OVERLAPS; |
| } |
| |
| if (path.isWithin(interiorPoint)) { |
| return CONTAINS; |
| } |
| |
| return DISJOINT; |
| } |
| |
| @Override |
| protected double outsideDistance(final DistanceStyle distanceStyle, final double x, final double y, final double z) { |
| return distanceStyle.computeDistance(planetModel, plane, x,y,z); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (!(o instanceof GeoDegenerateLatitudeZone)) |
| return false; |
| GeoDegenerateLatitudeZone other = (GeoDegenerateLatitudeZone) o; |
| return super.equals(other) && other.latitude == latitude; |
| } |
| |
| @Override |
| public int hashCode() { |
| int result = super.hashCode(); |
| long temp = Double.doubleToLongBits(latitude); |
| result = 31 * result + (int) (temp ^ (temp >>> 32)); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| return "GeoDegenerateLatitudeZone: {planetmodel="+planetModel+", lat=" + latitude + "(" + latitude * 180.0 / Math.PI + ")}"; |
| } |
| } |
| |