Representation of polygons defined by non-zero winding numbers
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United States of America Patent
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-
Aug 27, 1991
Grant Date -
N/A
app pub date -
Jun 9, 1989
filing date -
Jun 9, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a system having a frame buffer for generating an image wherein the image is defined as an outline having an interior described by the non-zero winding rule, the system including the mehtod of providing visual images along a scan direction comprising the steps of entering into the frame buffer predetermined direction codes, determining points of intersection and points of adjacent location in the scan direction, and spatially offsetting direction codes in the scan direction for the points of intersection and points of adjacent location in the scan direction.
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