Apparatus for generating an arbitrary parameter curve represented as an n-th order Bezier curve
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United States of America Patent
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Aug 31, 1993
Issued Date -
N/A
app pub date -
Jul 22, 1992
filing date -
Dec 28, 1988
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Coordinate values of control points of a given Bezier curve are stored in a register, the contents of the register are supplied to a determination circuit to determine whether a distance between adjacent control points can further be bisected into two parts. If bisecting processing can be performed, the contents of the register are supplied to a bisection circuit, the Bezier curve is subdivided into two parts to generate new Bezier curves, and control point data of one of the new Bezier curves is applied to a stack memory and that of the other new Bezier curve is sent to the register. The contents of the register are checked by the determination circuit each time the contents of the register are updated.
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