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曲率连续保凸插值四次Bézier曲线及其误差分析 被引量:1

CONVEXITY PRESERVING CURVATURE CONTINUOUS QUADRANTAL BZIER CURVES AND THEIR ERRORS
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摘要 本文讨论了用四次Bezier曲线实现曲率连续的保凸插值曲线的方法,并给出了当数据点 加密时的收敛阶数,以及给定误差时插值曲线的误差分析.给出的曲线生成方法具有局部性, 并对凸性数据的曲率没有不必要的限制. This paper presents methods for constructing piecewise curvature continuous quadrantal Bézier curves, with locality, convexity preservation and interpolating to data-points. The convergence and the errors of these curves for interpolating to data-points are discussed. Moreover, there is no any unnecessary constraint for curvatures with given convex data-points.
作者 柳朝阳
机构地区 郑州大学数学系
出处 《数值计算与计算机应用》 CSCD 2005年第4期278-284,共7页 Journal on Numerical Methods and Computer Applications
关键词 收敛阶数 保凸性 四次BÉZIER曲线 曲率连续 局部性 插值曲线. convergence, convexity preservation, quadrantal Bézier curves,curvature continuity, locality, interpolation
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