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空间曲线的高阶几何Hermite插值

Triple Geometric Hermite Interpolation for Spatial Curves

  • 摘要: 在给定空间曲线两个端点的位置、切方向、曲率向量和挠率的情况下,用参数化五次Bézier曲线来对这条空间曲线进行几何Hermite插值,证明了插值问题局部可解,解有两个自由度,还给出了一种确定这两个自由度的方法;并证明了在适当的假设下插值有6阶逼近度.

     

    Abstract: This paper uses parametric quinary Bézier curve to interpolate a given special curve,whose position,tangent direction,curvature vector and torsion are prescribed at each endpoint.We prove that the interpolant exists locally with two degrees of freedom,and give a method to fix the two.Moreover, we prove that under appropriate assumptions the interpolant is of 6th order approximation accuracy.

     

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