Graphic engine for rasterizing a straight edge in a...

Details Graphic engine for rasterizing a straight edge in a... Graphic engine for rasterizing a straight edge in a...

2007-01-09

2007-01-09

Jankus, Almis R. (Department: 2672)

Computer graphics processing and selective visual display system

Computer graphics processing

Shape generating

Reexamination Certificate

active

10614879

ABSTRACT:
A method for rasterizing an edge includes determining an area projected by the edge in a pixel it touches. The projected area is first set equal to a unit area projected by the edge in one unit step. If a starting point of the edge is located in the pixel, an excessive projected area attributed to the edge before the starting point is subtracted from the projected area. If an end point of the edge is located in the pixel, another excessive projected area attributed to the edge after the end point is subtracted from the unit area from the projected area. If the edge crosses the pixel, then a carryover projected area attributed to the edge in a preceding pixel is added to the projected area.

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