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公开(公告)号：CA2021665C
公开(公告)日：1995-06-27
申请号：CA2021665
申请日：1990-07-20
Applicant: IBM
Inventor： ARANDA MICHAEL A , IIDA YOSHIO , KAMEI AKISHI
Abstract: A processing system for identifying operator selection of a graphics object in a system using parallel pixel generation. Parallel pixel generation results in a fragment comprising a series of M pixels being generated at each processing cycle. The image fragment must be tested against an operator defined selection area to determine whether the object being generated falls within the operator selection area. Fragments are initially classified as totally within or totally outside of the area. If a fragment intersects the operator selection area, applying a mask for each boundary of the operator defined area. Selection is signalled based upon the logical combination of the masked image fragments. Operator selection or picking occurs without the overhead of maintaining a pick RAM for the X and Y dimensions.
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公开(公告)号：DE69025538D1
公开(公告)日：1996-04-04
申请号：DE69025538
申请日：1990-10-17
Applicant: IBM
Inventor： ARANDA MICHAEL ARCHANGEL , IIDA YOSHIO , KAMEI AKISHI
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公开(公告)号：DE69025538T2
公开(公告)日：1996-09-12
申请号：DE69025538
申请日：1990-10-17
Applicant: IBM
Inventor： ARANDA MICHAEL ARCHANGEL , IIDA YOSHIO , KAMEI AKISHI
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