generate_cell_indices()

Grid.generate_cell_indices() → ndarray[Any, dtype[uint32]]Source

Generate cell indices array.

One row of cell indices array represents one cubic-like mesh with 8 vertices. Cells are indexed in the order of (L, M, N) direction.

Returns:

ndarray

Cell indices ((L-1) x (M-1) x (N-1), 8) 2D array.

Examples

>>> grid = Grid("zone0")
>>> cells = grid.generate_cell_indices()
>>> cells.shape
(1749600, 8)
>>> cells
array([[      0,       1,      83, ...,   49283,   49365,   49364],
       [      1,       2,      84, ...,   49284,   49366,   49365],
       [      2,       3,      85, ...,   49285,   49367,   49366],
       ...,
       [1774066, 1774067, 1774149, ..., 1823349, 1823431, 1823430],
       [1774067, 1774068, 1774150, ..., 1823350, 1823432, 1823431],
       [1774068, 1774069, 1774151, ..., 1823351, 1823433, 1823432]],
      dtype=uint32)