查询词典 curves

In order to realize the transition from quartic Wang-Ball to Said-Ball curve, and the transition from quartic Said-Ball to B6zier curve, two new classes of curves with shape parameters are defined.

为了实现从四次Wang-Ball到Said-Ball曲线的过渡，以及从四次Said-Ball到B6zier曲线的过渡，定义了2种带形状参数的曲线。

In this paper, a effective method of the shape control of rational quartic Bezier curves based on the weights modification was presented.

给出了一种基于权因子调整的四次Bézier 曲线形状控制的有效方法。

In chapter 3,we dig out two families of invariant quartic curves of a quadratic system.

第五章讨论向量场具有对称中心的二次系统，利用系统的不变双曲线及不变四次曲线，我们确定了一个对应极限环（1.1）分布的二维参数区域，其边界的构成为如下几种常见的极限环分枝：霍夫分析，庞加莱分枝，同宿分枝和异宿分枝。

The concept of quenching boiling was putforward, and the characteristics of curves of quenching boiling was studied.

提出了淬冷沸腾的概念，分析了淬冷沸腾曲线的特点及影响因素。

With queuing theory, the problem of the organization of the earthwork construction is solved in the Violet Gold Garden project with reverse construction method and the curves on efficiency and cost are given to make the machine disposition optimized economically.

结合天津市紫金花园工程"逆筑法"土方工程施工组织，运用排队理论解决土方挖运的施工组织问题，并得出在一定施工组织下土方开挖的效率和成本曲线，保证日出土量与机械配置在经济上达到最优。

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。

By mathematical method and computer simulation,it calculated the sun-light incidence rate of different surface radian curves of greenhouse.

通过数学方法，并结合计算机模拟，对日光温室不同弧度的采光屋面太阳光入射率进行了严密的计算。

It is simplified by approximating the radius of curvature, which provides the NURBS curves interpolators with good real-time performance.

该算法基于NURBS曲线的反算算法，通过合理的近似计算，对插补运算简化，保证了算法的实时性。

In this course, we will introduce the basic raster graphics algorithms for drawing 3d primitives, geometric transformations in 2D and 3D space, viewing in 3D, representing curves and surfaces, visual reality and computer animation.

并为今后从事计算机辅助设计和制造、科学计算可视化、计算机图形处理、图形算法的设计、图形软件的开发以及计算机动画、游戏开发等方面的研究工作和系统开发等打下良好的理论基础与实践基础。

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。

Finally it offers the analysis of the fault-tolerance system as well as its test verification.

这样，运行于空间环境中的系统的设计目标就是在保证系统实时性

However, it is still difficult to find out the real reason of the increase of the keratinized gingiva during the orthodontic extrusion whether it is due to the proliferation of the gingival tissue or to its elastic nature, that is because the proliferation of the fibroblasts as well as the connective tissue changes in volume and the intra-fibers spaces were all immeasurable in most of the studies.

然而，仍然难以找到真正的原因增加的角化牙龈在正畸挤压它是否是由于扩散的牙龈组织或其弹性性质，这是因为增殖的成纤维细胞以及作为结缔组织的变化量和内部纤维空格都是不可估量的，大多数的研究。