Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*
 *     This file is part of Skiggle, an online handwriting recognition
 *     Java application.
 *     Copyright (C) 2009-2011 Willie Lim <wlim650@gmail.com>
 *
 *     Skiggle 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.
 *
 *     Skiggle 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 Skiggle.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

public class Main {
    public static float computeCurvatureM2003(float x0, float y0, float x1, float y1, float x2, float y2) {

        double kappa = 0.0D;

        float a1 = (x2 - x0) / 2;
        float a2 = (x2 + x0) / 2 - x1;
        float b1 = (y2 - y0) / 2;
        float b2 = (y2 + y0) / 2 - y1;

        // float alpha = 0.0F;
        // alpha = (a1*b2 - a2*b1);
        // float beta  = 0.0F;
        // beta = a1*a1 + b1*b1;
        // float delta = 0.0F;
        // delta = (float) Math.pow((a1*a1 + b1*b1), 1.5);

        kappa = 2 * (a1 * b2 - a2 * b1) / Math.pow((a1 * a1 + b1 * b1), 1.5);
        return (float) kappa;
    }
}