non-uniform rational B-spline 样条 ; 方法 ; 曲线
rational spline curve 有理样条曲线
rational spline surface 有理样条曲面
rational spline function 有理样条函数
bivariate rational spline 二元有理样条
rational spline functions 有理样条函数
generalized rational spline 广义有理样条
An algorithm for constructing rational spline closed curve which is tangent to the given polygon is described.
描述了一种与给定多边形相切的有理样条曲线的算法。
The control points of the rational spline to be constructed were computed simply by the vertices of the given polygon.
第二个算法不断删去多边形的凹点及新产生的凹点，最后得到凸壳顶点序列。
This paper constructed a kind of special rational spline, presented its behavior formula and the proof of its uniqueness, and showed its superiority by examples.
构造了一类特殊的有理样条，给出其表现公式及唯一性证明，并通过实例说明其优越性。
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