发明名称 |
Efficient method for clipping numerous objects against an arbitrary clipping path |
摘要 |
A method and apparatus for clipping a objects against a non-rectangular polygon. The present invention first defines a rectangular buffer with a height and width equal to the maximum height and width of the non-rectangular polygon. Next, each object is clipped against the rectangular buffer using a fast rectangular clipping method. After all the objects have been clipped, the rectangular buffer is converted to a pattern buffer. Finally, the pattern buffer is clipped against the non-rectangular polygon using an arbitrary clipping method.
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申请公布号 |
US5966136(A) |
申请公布日期 |
1999.10.12 |
申请号 |
US19950422188 |
申请日期 |
1995.04.12 |
申请人 |
HEWLETT-PACKARD CO. |
发明人 |
KURTZ, BARRY D.;CLAIBORNE, STEVEN J. |
分类号 |
G06T3/00;G06T11/00;G06T15/30;(IPC1-7):G06T11/00 |
主分类号 |
G06T3/00 |
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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