C~2 and C~3 Continuous Bézier Spline Curve with Given Tangent Polygon
Fang Kui
Abstract
Fang Kui
Abstract
This paper proposes an approach of constructing planar piecewise Bezier curve of 4th or 5th degree with all edges tangent to a given control polygon and the curve segments are joined together with C 2 and C 3 continuity. The segmented Bezier curves are all shape preserving to their tangent polygon. Finally, a few numerical examples illustrate that the method given in this paper is effective for CAGD.
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This paper proposes an approach of constructing planar piecewise Bezier curve of 4th or 5th degree with all edges tangent to a given control polygon and the curve segments are joined together with C 2 and C 3 continuity. The segmented Bezier curves are all shape preserving to their tangent polygon. Finally, a few numerical examples illustrate that the method given in this paper is effective for CAGD.
Key concepts: Bézier curve, Polygon (computer graphics), Tangent, Piecewise, Mathematics, Tangent vector, Spline (mechanical), Geometry