1991-10-03
1994-04-26
Nguyen, Phu K.
395141, G06F 1560
Patent
active
053074530
ABSTRACT:
A graphic data processing system including an entering unit for entering a two-dimensional polygon, a copying unit for copying the two-dimensional polygon entered by the entering unit to another location separated from the original location by a prescribed distance, and a connecting unit for connecting vertexes of the two-dimensional polygon entered by the entering unit and corresponding vertexes of the two-dimensional polygon copied by the copying unit, whereby to form a prismatic figure. Further, the graphic data processing system may include a vertex-entering order judging unit for judging the order of the vertexes of the two-dimensional polygon entered by the entering unit, and a shade processing unit for processing shades of the prismatic figure in response to a result of the judgement made by the vertex-entering order judging unit.
REFERENCES:
patent: 5115494 (1992-05-01), Seki
patent: 5138697 (1992-08-01), Yamamoto et al.
patent: 5189626 (1993-02-01), Colbun
Fuji 'Xerox Co., Ltd.
Nguyen Phu K.
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