Java Distance Calculate distanceSqr(final float[] a, final float[] b)

Description

Distance between points a and b, squared.

License

Open Source License

Parameter

Parameter	Description
a	first point.
b	second point.

Return

distance.

Declaration

static double distanceSqr(final float[] a, final float[] b) 

Method Source Code

//package com.java2s;
/*/* ww w.ja v  a  2s .c  o m*/
 * IJ-Plugins
 * Copyright (C) 2002-2016 Jarek Sacha
 * Author's email: jpsacha at gmail dot com
 *
 *  This library 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; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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 library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Latest release available at http://sourceforge.net/projects/ij-plugins/
 */

public class Main {
    /**
     * Distance between points <code>a</code> and <code>b</code>, squared.
     *
     * @param a first point.
     * @param b second point.
     * @return distance.
     */
    static double distanceSqr(final float[] a, final float[] b) {
        double sum = 0;
        for (int i = 0; i < a.length; i++) {
            final double d = a[i] - b[i];
            sum += d * d;
        }

        return sum;
    }
}

Related

1. distanceSq(double[] p1, double[] p2, double[] weights)
2. distanceSQ(double[] pos1, double[] pos2)
3. distanceSq(double[] vec1, double[] vec2)
4. distanceSq(float x0, float y0, float x1, float y1)
5. distanceSq(int x0, int y0, int x1, int y1)
6. DistanceSquareBetweenPoints(double x1, double y1, double x2, double y2)
7. distanceSquared(double dx, double dy)
8. distanceSquared(double x1, double y1, double x2, double y2)
9. distanceSquared(double x1, double y1, double x2, double y2)