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A generalized curve subdivision scheme of arbitrary order with a tension parameter

机译:具有张力参数的任意阶数的广义曲线细分方案

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摘要

This article presents a generalized subdivision scheme of arbitrary order with a tension parameter for curve design. The scheme is built upon refinement of a family of generalized B-splines that unify classic B-splines with algebraic-trigonometric B-splines and algebraic-hyperbolic B-splines. The scheme of order k produces C~(k-2)-continuous limit curves representing such splines. Many known subdivisions are special cases of the proposed subdivision scheme. By assigning an appropriate initial tension parameter, many analytic curves commonly used in engineering applications, such as Lissajous curves, conics, trigonometric function curves, hyperbolic function curves, catenary curves and helixes, etc., can also be exactly defined under the generalized subdivision scheme. Numerous examples are also provided to illustrate how the initial tension parameter and the control points are assigned for reproducing such analytic curves.
机译:本文提出了具有张力参数的任意阶数的广义细分方案,用于曲线设计。该方案是建立在一系列广义B样条的精炼之上的,这些B样条将经典B样条与代数三角B样条和代数双曲B样条统一起来。 k阶方案生成代表此类样条的C〜(k-2)连续极限曲线。许多已知的细分都是建议的细分方案的特例。通过分配适当的初始张力参数,还可以在广义细分方案下精确定义许多工程应用中常用的分析曲线,例如李沙育曲线,圆锥曲线,三角函数曲线,双曲线函数曲线,悬链线和螺旋线等。 。还提供了许多示例来说明如何分配初始张力参数和控制点以重现此类分析曲线。

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