/*
 * 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.
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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
/** * This GeoBBox represents an area rectangle of one specific latitude with * no longitude bounds. * * @lucene.internal */
class GeoDegenerateLatitudeZone extends GeoBaseBBox {
The latitude
/** The latitude */
protected final double latitude;
Sine of the latitude
/** Sine of the latitude */
protected final double sinLatitude;
Plane describing the latitude zone
/** Plane describing the latitude zone */
protected final Plane plane;
A point on the world that's also on the zone
/** A point on the world that's also on the zone */
protected final GeoPoint interiorPoint;
An array consisting of the interiorPoint
/** An array consisting of the interiorPoint */
protected final GeoPoint[] edgePoints;
No notable points
/** No notable points */
protected final static GeoPoint[] planePoints = new GeoPoint[0];
Constructor.
Params:
  • planetModel – is the planet model to use.
  • latitude – is the latitude of the latitude zone.
/** 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.
Params:
  • planetModel – is the planet model.
  • inputStream – is the input stream.
/** * 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 + ")}"; } }