Represents all supported directions.

Easterly scan (horizontally, left to right).

Represents no directions. Not recommended in general use.

Northerly scan (vertically, bottom to top).

Northeasterly scan (diagonally, lower left to upper right).

Northwesterly scan (diagonally, lower right to upper left).

Southerly scan (vertically, top to bottom).

Southeasterly scan (diagonally, upper right to lower left).

Southwesterly scan (diagonally, upper right to lower left).

Westerly scan (horizontally, right to left).