Map_2Di_Col_YDo_1D: 2d map store as 1d, y0 up y1 and x0 -> x1. Point (0,0) bottom left.
[2, 5, 8, 1, 4, 7, 0, 3, 6]
2   5   8
1   4   7
0   3   6

Map_2Di_Col_YDo_2D: 2d map store as 1d, y0 up y1 and x0 -> x1. Point (0,0) bottom left.
[[2, 5, 8], [1, 4, 7], [0, 3, 6]]
2   5   8
1   4   7
0   3   6

Map_2Di_Col_YUp_1D: 2d map store as 1d, y0 up y1 and x0 -> x1. Point (0,0) top left.
[0, 3, 6, 1, 4, 7, 2, 5, 8]
0   3   6
1   4   7
2   5   8

Map_2Di_Col_YUp_2D: 2d map store as 1d, y0 down y1 and x0 -> x1. Point (0,0) top left.
[[0, 3, 6], [1, 4, 7], [2, 5, 8]]
0   3   6
1   4   7
2   5   8

Map_2Di_Row_YDo_1D: 2d map store as 1d, x0 -> x1 and y0 ^ y1. Point (0,0) bottom left.
[6, 7, 8, 3, 4, 5, 0, 1, 2]
6   7   8
3   4   5
0   1   2

Map_2Di_Row_YDo_2D: 2d map store as 2d, x0 -> x1 and y0 ^ y1. Point (0,0) bottom left.
[[6, 7, 8], [3, 4, 5], [0, 1, 2]]
6   7   8
3   4   5
0   1   2

Map_2Di_Row_YUp_1D: 2d map store as 1d, x0 -> x1 and y0 down y1. Point (0,0) top left.
[0, 1, 2, 3, 4, 5, 6, 7, 8]
0   1   2
3   4   5
6   7   8

Map_2Di_Row_YUp_2D: 2d map store as 2d, x0 -> x1 and y0 down y1. Point (0,0) top left.
[[0, 1, 2], [3, 4, 5], [6, 7, 8]]
0   1   2
3   4   5
6   7   8