Java Angle angleToDefaultAngle(double angle)

Description

For a given angle in radians, return the equivalent angle in the range [-PI, PI].

License

Open Source License

Parameter

Parameter	Description
angle	angle

Return

(angle + PI) % (-TWOPI) + PI

Declaration

public static double angleToDefaultAngle(double angle) 

Method Source Code

//package com.java2s;
/**//from  www .  j  a v a  2  s .  c  om
 * Copyright 2004-2006 DFKI GmbH.
 * All Rights Reserved.  Use is subject to license terms.
 *
 * This file is part of MARY TTS.
 *
 * MARY TTS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, version 3 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

public class Main {
    public static final double TWOPI = 2 * Math.PI;

    /**
     * For a given angle in radians, return the equivalent angle in the range [-PI, PI].
     * 
     * @param angle
     *            angle
     * @return (angle + PI) % (-TWOPI) + PI
     */
    public static double angleToDefaultAngle(double angle) {
        return (angle + Math.PI) % (-TWOPI) + Math.PI;
    }

    /**
     * For each of an array of angles (in radians), return the equivalent angle in the range [-PI, PI].
     * 
     * @param angle
     *            angle
     * 
     */
    public static void angleToDefaultAngle(double[] angle) {
        for (int i = 0; i < angle.length; i++) {
            angle[i] = angleToDefaultAngle(angle[i]);
        }
    }
}

Related

1. angleRadToDegClipped(final double angleRad)
2. anglesInvalid(double sza, double vza, double saa, double vaa)
3. angleSum(float a1, float a2)
4. angleTo(final int x, final int y, final int thatx, final int thaty)
5. angleToCompass(double angleIn)
6. angleToFacing(float angle)
7. angleYawinRange(float start, float end, float angle)