Calculate steepest descent on a raster grid.
_calc_steepest_descent_across_adjacent_cells(...) |
Get steepest gradient to neighbor and diagonal cells. |
_calc_steepest_descent_across_cell_corners(...) |
Get steepest gradient to the diagonals of a cell. |
_calc_steepest_descent_across_cell_faces(...) |
Get steepest gradient across the faces of a cell. |
