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- rational parametric curve 有理参数曲线
- A Fast Point-by-Point Generating Algorithm for Rational Parametric Curves 有理参数曲线的快速逐点生成算法
- Ball rational parameter curve 巴尔参数有理三次曲线
- Uniform Rational T-Spline Parametric Curve in Space 空间均匀有理张力样条参数曲线
- The experimental result shows that the parametric curve of uniform interpolation in less than 6 rank is better in performance. 实验表明，采用低阶（一般小于6阶）参数插值方程实现连接，效果好。
- Sharp R J, Thorne R W., Numerical method for extractng an are length parametrizaion from parametric curve, CAD, 14: 2 (1982). 逵等;一种弧长参数曲线及其计算机实现;工程图学学报;2(1994);70-75.
- Many parametric curves and surfaces have been developed in CAGD. 在计算机辅助几何设计领域中,许多种参数曲线和曲面已经有了完整的理论。
- This paper mainly analysis theory base and testing data of design rebuild for agitator, select rational parameters economical and satisfiable. 本文主要分析混合槽设计改造的理论基础及试验数据，与生产实践相结合，选择既经济又能满足生产要求的合理化参数。
- In this paper,the determination of rational parameters with longhole blasting is discussed, and a mathematical model is provided to choose blasting parameters. 对深孔采矿合理爆破参数的确定进行了理论探讨，提出了爆破参数目标规划理论模型。
- Firstly, to the rectangle window, algorithms for clipping lines, circles and ellipses, as well as parametric curves are introduced. 首先对于矩形窗口,介绍了直线裁剪算法,圆和椭圆裁剪算法以及参数曲线的裁剪算法。
- This paper presents a new method for the implicitization of polynomial parametric curves. 给出了多项式参数曲线隐式化的一种新方法。
- In CAD system, parametric curves and surfaces are usually applied to interpolate, approximate and fit the giving data. 在CAD系统中,经常用参数曲线曲面来插值、逼近、拟合测量得到的数据点。
- The proposed interpolator can also be applied to the trajectory planning of the other parametric curves. 该算法同样可以应用于其他参数曲线的轨迹规划。
- Abstract The rational parameters of inducer shotfiring with medium length boreholes to prevent outburst in coal face was probed and the shotfiring results and the effective influencing radius was examined. 探讨了中深孔松动爆破防止回采工作面煤与瓦斯突出的合理参数，考察了爆破效果及有效影响半径。
- Convexity Analysis of Closed Parametric Curve 平面参数曲线的凸性分析
- The relatively rational parameters of grating are chosen according to the calculated results to make that when incidence angle or azimuth is varied, the light of different wave band will be reflected. 通过计算结果，找出相对合理的光栅参数，使得当入射光的入射角或方位角发生变化时，光栅反射出不同波段的光，即反射出不同颜色的光。
- The results validate that parameters have effect on the simulation results, and by selecting rational parameters, the simulation results are in good accordant with the experimental ones. 模拟结果证实了计算参数对离散元法模拟结果的影响，通过选择合理的计算参数，模拟结果同试验结果能够很好地吻合。
- It introduced imitating surfaces with bicubic parametric curves,feed length,cutter location and vector of cutter location. 介绍用双三次参数曲线拟合曲面、平头铣刀的直径、铣削的步长及行距选择、刀位点和刀轴矢量的计算。
- The cohesive strength of talus slides plays an important role in slope stability, so the article inverse calculates it and confirms rational parameter of cohesive strength of talus slides. 由于堆积体的粘聚力对边坡稳定性起到关键性的作用,所以对堆积体的粘聚力进行反算,确定合理的堆积体粘聚力参数取值。
- The algorithm first selects a parametric curve to match the intensity transfer function (ITF) based on the sampling points, and estimates the parameter curve via some nonlinear optimization method. 首先根据采样点的粗略分布建立亮度响应曲线的经验参数模型，并通过采样数据来确定该曲线的参数；
