| /* |
| * 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; |
| |
| /** |
| * Normal squared distance computation style. |
| * |
| * @lucene.experimental |
| */ |
| public class NormalSquaredDistance implements DistanceStyle { |
| |
| /** A convenient instance */ |
| public final static NormalSquaredDistance INSTANCE = new NormalSquaredDistance(); |
| |
| /** Constructor. |
| */ |
| public NormalSquaredDistance() { |
| } |
| |
| @Override |
| public double computeDistance(final GeoPoint point1, final GeoPoint point2) { |
| return point1.normalDistanceSquared(point2); |
| } |
| |
| @Override |
| public double computeDistance(final GeoPoint point1, final double x2, final double y2, final double z2) { |
| return point1.normalDistanceSquared(x2,y2,z2); |
| } |
| |
| @Override |
| public double computeDistance(final PlanetModel planetModel, final Plane plane, final GeoPoint point, final Membership... bounds) { |
| return plane.normalDistanceSquared(point, bounds); |
| } |
| |
| @Override |
| public double computeDistance(final PlanetModel planetModel, final Plane plane, final double x, final double y, final double z, final Membership... bounds) { |
| return plane.normalDistanceSquared(x,y,z, bounds); |
| } |
| |
| @Override |
| public double toAggregationForm(final double distance) { |
| return Math.sqrt(distance); |
| } |
| |
| @Override |
| public double fromAggregationForm(final double aggregateDistance) { |
| return aggregateDistance * aggregateDistance; |
| } |
| |
| @Override |
| public GeoPoint[] findDistancePoints(final PlanetModel planetModel, final double distanceValue, final GeoPoint startPoint, final Plane plane, final Membership... bounds) { |
| throw new IllegalStateException("Reverse mapping not implemented for this distance metric"); |
| } |
| |
| @Override |
| public double findMinimumArcDistance(final PlanetModel planetModel, final double distanceValue) { |
| throw new IllegalStateException("Reverse mapping not implemented for this distance metric"); |
| } |
| |
| @Override |
| public double findMaximumArcDistance(final PlanetModel planetModel, final double distanceValue) { |
| throw new IllegalStateException("Reverse mapping not implemented for this distance metric"); |
| } |
| |
| } |
| |
| |