knot vector meaning in English

节点矢量

The aims of this thesis are researching some typical nurbs surfaces " geometric continuous conditions and pointing out the effects of knot vector and the degree of surface on geometric continuities
本文的目的是研究一些典型的nurbs曲面的几何连续条件，指出节点向量和曲面片的次数对几何连续性的影响。
To interpolate the given ship offset data , the ship - hull surface is represented successfully by nurbs . the boundary conditions computation and knots vector construction are detailed in nurbs curve and surface interpolation
本文根据船体型值表的数据，用nurbs曲面来描述完整船体曲面，对插值曲面边界条件构造及节点矢量计算进行了研究，实现了船体曲线曲面的nurbs表达。
3 ) b - spline surface fitting to contour data is studied . a fitting method of using uniform knot vector is given . using this method , the resulted b - spline s urface not only satisfy the requirements of precision , but also possess fewer c ontrol vertices and good fairness , the computation speed is greatly improved t oo
3 )研究了逐层扫描数据的曲面拟合问题，给出了一种是利用统一的节点矢量进行拟合的算法，用该法得到的b样条曲面不仅可以满足精度要求，而且具有较少的控制顶点和较好的光顺性，计算速度也有较大的提高。