| /* |
| * 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.geo; |
| |
| import static org.apache.lucene.geo.XYEncodingUtils.checkVal; |
| |
| /** Represents a x/y cartesian rectangle. */ |
| public final class XYRectangle extends XYGeometry { |
| /** minimum x value */ |
| public final float minX; |
| /** minimum y value */ |
| public final float maxX; |
| /** maximum x value */ |
| public final float minY; |
| /** maximum y value */ |
| public final float maxY; |
| |
| /** Constructs a bounding box by first validating the provided x and y coordinates */ |
| public XYRectangle(float minX, float maxX, float minY, float maxY) { |
| if (minX > maxX) { |
| throw new IllegalArgumentException("minX must be lower than maxX, got " + minX + " > " + maxX); |
| } |
| if (minY > maxY) { |
| throw new IllegalArgumentException("minY must be lower than maxY, got " + minY + " > " + maxY); |
| } |
| this.minX = checkVal(minX); |
| this.maxX = checkVal(maxX); |
| this.minY = checkVal(minY); |
| this.maxY = checkVal(maxY); |
| } |
| |
| @Override |
| protected Component2D toComponent2D() { |
| return Rectangle2D.create(this); |
| } |
| |
| @Override |
| public boolean equals(Object o) { |
| if (this == o) return true; |
| if (o == null || getClass() != o.getClass()) return false; |
| |
| XYRectangle rectangle = (XYRectangle) o; |
| |
| if (Float.compare(rectangle.minX, minX) != 0) return false; |
| if (Float.compare(rectangle.minY, minY) != 0) return false; |
| if (Float.compare(rectangle.maxX, maxX) != 0) return false; |
| return Float.compare(rectangle.maxY, maxY) == 0; |
| |
| } |
| |
| /** Compute Bounding Box for a circle in cartesian geometry */ |
| public static XYRectangle fromPointDistance(final float x, final float y, final float radius) { |
| checkVal(x); |
| checkVal(y); |
| if (radius < 0) { |
| throw new IllegalArgumentException("radius must be bigger than 0, got " + radius); |
| } |
| if (Float.isFinite(radius) == false) { |
| throw new IllegalArgumentException("radius must be finite, got " + radius); |
| } |
| // LUCENE-9243: We round up the bounding box to avoid |
| // numerical errors. |
| float distanceBox = Math.nextUp(radius); |
| float minX = Math.max(-Float.MAX_VALUE, x - distanceBox); |
| float maxX = Math.min(Float.MAX_VALUE, x + distanceBox); |
| float minY = Math.max(-Float.MAX_VALUE, y - distanceBox); |
| float maxY = Math.min(Float.MAX_VALUE, y + distanceBox); |
| return new XYRectangle(minX, maxX, minY, maxY); |
| } |
| |
| @Override |
| public int hashCode() { |
| int result; |
| long temp; |
| temp = Float.floatToIntBits(minX); |
| result = (int) (temp ^ (temp >>> 32)); |
| temp = Float.floatToIntBits(minY); |
| result = 31 * result + (int) (temp ^ (temp >>> 32)); |
| temp = Float.floatToIntBits(maxX); |
| result = 31 * result + (int) (temp ^ (temp >>> 32)); |
| temp = Float.floatToIntBits(maxY); |
| result = 31 * result + (int) (temp ^ (temp >>> 32)); |
| return result; |
| } |
| |
| @Override |
| public String toString() { |
| StringBuilder b = new StringBuilder(); |
| b.append("XYRectangle(x="); |
| b.append(minX); |
| b.append(" TO "); |
| b.append(maxX); |
| b.append(" y="); |
| b.append(minY); |
| b.append(" TO "); |
| b.append(maxY); |
| b.append(")"); |
| |
| return b.toString(); |
| } |
| } |