Computer graphics processing and selective visual display system – Computer graphics processing – Three-dimension
Patent
1997-09-09
1999-03-16
Fetting, Anton
Computer graphics processing and selective visual display system
Computer graphics processing
Three-dimension
G06T 1720
Patent
active
058836314
ABSTRACT:
A free-form surface generating method. There is a generating of a continuity condition by detecting a continuity on a common boundary of two free-form surfaces based on tangent vectors on a NURBS common boundary curve and tangent vectors on boundary curves continuous to end points of the NURBS common boundary curve. Next, one of a plurality of predetermined joining processes is selected in accordance with the continuity condition. Then, internal control points of each of the two free-form surfaces are generated based on the selected joined with continuity on the common boundary are generated.
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Chiyokura Hiroaki
Konno Kouichi
Fetting Anton
Ricoh & Company, Ltd.
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