001/*******************************************************************************
002 * This software is provided as a supplement to the authors' textbooks on digital
003 * image processing published by Springer-Verlag in various languages and editions.
004 * Permission to use and distribute this software is granted under the BSD 2-Clause
005 * "Simplified" License (see http://opensource.org/licenses/BSD-2-Clause).
006 * Copyright (c) 2006-2023 Wilhelm Burger, Mark J. Burge. All rights reserved.
007 * Visit https://imagingbook.com for additional details.
008 ******************************************************************************/
009package imagingbook.common.util.random;
010
011/**
012 * A convenience random generator for angular values.
013 * 
014 * @author WB
015 */
016public class RandomAngle extends java.util.Random {
017        private static final long serialVersionUID = 1L;
018        
019        public RandomAngle() {
020                super();
021        }
022        
023        public RandomAngle(long seed) {
024                super(seed);
025        }
026
027        /**
028         * Returns a random {@code double} value in the range [-π,+π].
029         *
030         * @return a random angle
031         */
032        public double nextAngle() {
033                return (2 * this.nextDouble() - 1) * Math.PI;
034        }
035
036}