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Binary Source Coordinates: The binary (1-bit/pixel) source coordinate system is mapped
directly onto 1-dimensional memory space. Any area and location can be used, and this coordinate
system can overlap display list space. However, the start address of a source figure is always a
word address. The size of the figure is specified by POLYGON4B command parameters TDX and
TDY. The horizontal width (TDX) setting can only be made in multiples of 8 pixels.
Source
address
(word)
Binary Work Coordinate System: The work coordinate system corresponds on a one-to-one
basis to the rendering coordinate system. Therefore, clipping is also handled in the same way as for
the rendering coordinate system.
TDX
Figure 4-4
Binary Source Coordinates
Binary source space and
display list space
TDY
65
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