Patent
1995-04-13
1997-03-11
Nguyen, Phu K.
G06F 1500
Patent
active
056110294
ABSTRACT:
A graphics controller for use in a computer system includes a run slice line draw engine to generate a line as a plurality of slices. The run slice line draw engine can perform non-linear scaling and shading of lines in accordance with a parametric equation by approximating the parametric equation as a polyline with a plurality of linear segments. The polyline approximation can be generated using information concerning each derivative of the parametric equation. Each linear segment of the polyline includes a plurality of slices generated by the run slice line draw engine. By approximating the polyline as a plurality of linear segments, non-linear scaling and/or shading by the run slice line draw engine can be performed without complex mathematical computations.
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Dao Giang H.
Watters John J.
Compaq Computer Corporation
Nguyen Phu K.
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