There is one view for each of the eight possible ways of scanning a frame-buffer:
- From left to right and then from top to bottom
- From right to left and then from top to bottom
- From left to right and then from bottom to top
- From right to left and then from bottom to top
- From top to bottom and then from left to right
- From top to bottom and then from right to left
- From bottom to top and then from left to right
- From bottom to top and then from right to left