

                Logical Pixel-Plane

     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
     |       |       |       |       |       |       |       |       |
     |   .   |   .   |   .   |   .   |   .   |   .   |   .   |   .   |
     |       |       |       |       |       |       |       |       |
     +-------+-------+-------+-------+-------+-------+-------+-------+
