Finds the diametrically opposite angle to this angle. The diametrically opposite angle to 2.5 is -177.5 - Java java.lang

Java examples for java.lang:Math Geometry Shape

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Description

Finds the diametrically opposite angle to this angle. The diametrically opposite angle to 2.5 is -177.5

Demo Code

/*/*from ww  w  . j a v  a 2 s .  c o  m*/
 * Copyright (C) 2011 apurv
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
//package com.java2s;

public class Main {
    public static void main(String[] argv) throws Exception {
        double angle = 2.45678;
        System.out.println(findDiametricallyOppositeAngle(angle));
    }

    /**
     * Finds the diametrically opposite angle to this angle.<br>
     * The diametrically opposite angle to 2.5 is -177.5
     * @param angle
     * @return
     */
    private static double findDiametricallyOppositeAngle(double angle) {
        double oppAngle = 0.0;
        double sgn = Math.signum(angle);
        if (sgn == 0) {
            sgn += 1.0;
        }
        oppAngle = -1 * sgn * (180 - Math.abs(angle));
        return oppAngle;
    }
}

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