发明名称 |
Run slice line draw engine with non-linear scaling capabilities |
摘要 |
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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申请公布号 |
US5657435(A) |
申请公布日期 |
1997.08.12 |
申请号 |
US19950421828 |
申请日期 |
1995.04.13 |
申请人 |
COMPAQ COMPUTER CORPORATION |
发明人 |
WATTERS, JOHN J.;DAO, GIANG H. |
分类号 |
G06T11/20;(IPC1-7):G06T3/00 |
主分类号 |
G06T11/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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