发明名称 |
Data processing system including method and apparatus for performing graphics clipping operations |
摘要 |
A list of graphics orders defining the graphics objects to be displayed is processed to generate a list of modified graphics orders representing those portions of the graphics objects not overlaid by an overlapping area. The mechanisms for clipping to the inside of a bounded area are adapted to determine what portion of an area of graphics lies outside a bounded area. The invention includes techniques for dealing with graphics in the form of lines, areas bounded by lines, and images including arrays of picture elements or symbol set characters.
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申请公布号 |
US6005574(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19950386604 |
申请日期 |
1995.02.09 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
HERROD, JOHN ANDREW |
分类号 |
G06T15/30;(IPC1-7):G06F3/14 |
主分类号 |
G06T15/30 |
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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