Java Array Two Dimension to One Dimension array2DTo1D(double[][] In)

Description

Returns 1d array (column major) of a 2d array.

License

Open Source License

Parameter

Parameter	Description
In	the in

Return

1d array

Declaration

public static double[] array2DTo1D(double[][] In) 

Method Source Code

//package com.java2s;
/*//w w w.  j  av a 2  s.c om
 * This file is part of TiPi (a Toolkit for Inverse Problems and Imaging)
 * developed by the MitiV project.
 *
 * Copyright (c) 2014 the MiTiV project, http://mitiv.univ-lyon1.fr/
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

public class Main {
    /**
     * Returns 1d array (column major) of a 2d array.
     *
     * @param In the in
     * @return 1d array
     */
    public static double[] array2DTo1D(double[][] In) {
        int W = In.length;
        int H = In[0].length;
        double[] Out = new double[H * W];
        for (int j = 0; j < H; j++)
            for (int i = 0; i < W; i++)
                Out[j * W + i] = In[i][j];
        return Out;
    }
}

Related

1. array2dcopy(final String[][] src, final String[][] target)
2. array2dCopy(Object[][] src, Object[][] dest)
3. array2dTo1d(float[][] in)
4. array2Dto1D(int m, int n, double[][] a)
5. array2DTo1D(int[][] array2D)
6. array2Dto1D(int[][] d2)