X Coordinate
     0,0     +----------------------------------------+   319,0
             |                                        |
             |                                        |
             |                                        |
             |                                        |
Y Coordinate |                                        |
             |                                        |
             |                                        |
             |                                        |
    0,199    +----------------------------------------+   319,199

        Figure 6-6. Arrangement of x and y coordinates