counter clockwise Rotation - Java java.lang

Java examples for java.lang:Math Geometry

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Description

counter clockwise Rotation

Demo Code

/*******************************************************************************
 * Breakout Cave Survey Visualizer//www. j  a  v  a 2s .c  om
 *
 * Copyright (C) 2014 James Edwards
 *
 * jedwards8 at fastmail dot fm
 *
 * 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 2 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, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *******************************************************************************/
//package com.java2s;

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

    public static double counterclockwiseRotation(double a, double b) {
        return Math.PI * 2.0 - clockwiseRotation(a, b);
    }

    public static double clockwiseRotation(double a, double b) {
        double diff = (b - a) % (Math.PI * 2.0);
        return diff < 0.0 ? diff + Math.PI * 2.0 : diff;
    }
}

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