查询词典 spline

To do this,a novel quintic spline interpolation and velocity profile algorithm are presented.

为适应高速高精加工，针对传统插补算法和速度控制方式在进给过程中存在柔性冲击的问题，提出了一种五次参数样条曲线插补方法及其速度生成算法。

Considering the predefined cutting precision,a point near the corner and two points on each edge of the original corner were determined,and then two pieces of quintic spline curves were constructed with the three points.

根据预定的裁剪精度，在拐角顶点附近及构成拐角的两邻边各确定一个位置点，由这3点构建两段五次样条曲线代替构成拐角的原直线段。

Then the forging blade body is formed by fitting the data of forging blade to spline and B-surface, calling the rabbet and boss, generating the draft angle. Then the related parameter is calculated.

将锻件型面数据拟合成样条曲线、样条曲面，调入榫头和凸台，作出模锻斜度，生成叶片锻件实体，并计算了锻件的相关参数。

Section two elaborates the structure of a simple model on static yield curve of zero-coupon bond. According to the difference of constitution principle, the dissertation divides the numerous static models into direct ones and indirect ones. On the basis of setting forth the different constitution thoughts of two methods, it compares the merits, shortcomings, and the application scopes of the two methods. Spline model is the most common indirect method, and is the study emphasis of this section, especially its three key approaches that are defining the rank of function, the subinterval number to be divided, and knot of each subinterval, which are fully elaborated in the dissertation.

第二节阐述了现行静态零息票债券收益率曲线简单模型的构造，根据构造原理的不同，论文把众多静态模型划分为直接法和间接法两大类，在简述两种方法各自不同的构造思想的基础上，对两种方法的优缺点及适应范围进行了比较；分段样条函数模型作为最常用的间接法，是本节研究的重点，尤其是对它的三个关键环节：确定函数的阶数、确定所分的段数、确定各段的分解点，论文更是给予了充分的论述。

A method to construct an interpolation curve of rational quadratic B-spline G continuity is given.

给出二次有理B样条G2连续拼接的条件，提出一种二次有理B样条G2连续插值曲线的构造方法。

Computer application ; curve design ; rational interpolation ; cubic spline

计算机应用；曲线设计；有理插值；三次样条

Iterative relationship between parameters of two adjacent interpolation points on a Non-Uniform Rational B Spline curve is obtained based on Taylor formula.

基于Taylor公式得到了非均匀有理B样条曲线上两个相邻插补点参数间的递推关系。

If the method is combined with the subdivision method of curve,the rational spline curve with higher-order continuity is presented which is the approximation of offset curve.

该方法与离散算法相结合，可得到等距曲线的高阶连续的有理样条逼近曲线，最后，通过数值实例与已有方法作了比较。

A new method for planar curves has been developed. Curvature signal is decomposed with wavelet at first, and then select interpolative dots by altering pace, which is used to construct a G2 continuous rational cubic Bezier spline curve.

给出了一种先对初始曲率进行小波分解，再用变步长的方法选取待插值点，最后利用C^2连续的三次有理Bezier样条插值重建出光顺的平面曲线的方法。

With regard to the accuracy and smoothness of a set of discrete data points approximation, this paper gave a whole fairing and approximation algorithm of cubic Non-Uniform Rational B-Spline curve.

针对离散数据点序列的拟和精度及光顺度问题，提出了一种三次非均匀有理B样条曲线整体光顺逼近算法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。