How to turn a 3D array into multiple 2D arrays

Question

I have an array of values in a 3-D array, stored as [x,y,z]. A 3-D array is useful for the previous function, but in the current function, I would like z series' of [x,y] arrays. Is this possible? The array I have is input[x,y,z], and I would like it to be redone into 2-D arrays. x and y are the values for the 2-D array.

var dict = new Dictionary<int, double[,]>();
for (int files = 0; files < input.GetLength(2); files++)
{
    dict[files] = input[x,y,files]
}

This doesn't make sense. A three dimensional array IS multiple two dimensional arrays. — Erik Philips, Jul 24 '14 at 20:02
Yes, but I want to be able to call them separately( eg. dict[0], dict[1], ...etc.) — Ogoun, Jul 24 '14 at 20:03
I'm not sure what your data structure is describing. Do you have an array set up like myArray[X][Y][Z]? — Elianora, Jul 24 '14 at 20:03
Here is the function, where input is declared. public static double[,] translateData( double[, ,] input ) — Ogoun, Jul 24 '14 at 20:04
Yes, but your structure isn't clear. You can have an array of sub-arrays of sub-sub-arrays, or you can have an array that contains sets of values. Your structure feels ambiguous. — Elianora, Jul 24 '14 at 20:05

score 4 · Accepted Answer · edited May 23 '17 at 12:27

var dict = new Dictionary<int, double[,]>();
for (int files = 0; files < input.GetLength(2); files++)
{
    double[,] twoD = new double[input.GetLength(0), input.GetLength(1)];
    for (int x = 0; x < input.GetLength(0); x++)
        for (int y = 0; y < input.GetLength(1); y++)
            twoD[x, y] = input[x, y, files];
    dict.Add(files, twoD);
}

This SO question might help as well.

Note that this does assume that your z values are unique.

How to turn a 3D array into multiple 2D arrays

1 Answers1