查询词典 cubic curve

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

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。

Data used to be and curve tools, the use of a cubic spline interpolation methods.

用数据拟和曲线的工具，利用了三次样条插值等方法。

Depending on the axis being spacelike, timelike or null, there are three types of screw motions, the third case, i.e., cubic screw motion, is most particular because it is not a rotation together with a translation along the null axis, but a rotation together with a translation along a null curve with non-zero curvature.

依据旋转轴的向量类型，三维Minkowski空间中的螺旋运动可分为三类，其中第三类螺旋运动，即三次螺旋运动，是最特殊的。

As the cubic B-spline curves, each trigonometric polynomial curve segment was generated by four consecutive control points.

与三次B样条曲线类似。曲线的每一段由相继的4个控制顶点生成。

In order to let the moving robot be able to keep stability in the course of motion , a method for matching the path of robotic motion by the use of cubic spline curve under the environment of duad tree modeling was put forward .

为了使移动机器人在运行过程中能够保持平稳，在四叉树建模环境下，提出用三次样条曲线拟合机器人运动路线的方法。

The energy curve of the body-centered cubic structure of theH92 +cluster is calculated by means of variational method.

用变分法计算了H29+团簇的体心立方结构与能量。

The result shows that the curve has a minimal energy of -67.160922 a.u. at R = 4.77 a0, which means that the Li9 cluster may be formed stably in the body-centred cubic structure.

结果显示曲线在R = 4.77 a0处有一极小值-67.160922 a.u。，这表明Li9团簇的体心立方结构是可能稳定存在的。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。