线裁剪是计算机图形学的重要基础问题之一。
Line clipping is one of the fundamental problems in computer graphics.
裁剪是计算机图形学中的一个基本问题。
裁剪算法是计算机图形处理的重要算法。
The clipping algorithm is an important algorithm of computer graphical processing.
裁剪算法是计算机图形学中的基本算法，也是其它诸多重要问题的基础。
Clipping algorithm is an basic algorithm in the Computer Graphics and the base of a lot of important task.
裁剪是计算机图形处理的重要技法。
The clipping is the important skill of computer graphical processing.
现有的圆形窗口对线段的裁剪算法由于包含复杂的计算而难于提高速度。
It is hard to speed up the line clipping for circular Windows due to the complex calculation adopted in the current algorithms.
最后简单说明了数据结构转换、坐标系转换、图形裁剪与分幅、图层管理以及应用计算等功能。
At last, this paper narrates several issues, they are conversion of data structure, conversion of coordinate system, cutting out and disparting of map, the management of layer and applied calculation.
从下料展开尺寸的计算、裁剪、直缝焊接、整圆、压装、环缝焊接、检漏等都有一定的技术难度。
Size is expected to start from the calculation, cutting, straight seam welding, the whole round, press-fit, girth welding, leak detection, have a certain degree of technical difficulty.
线裁剪技术在计算机图形处理中占有重要地位，是计算机图形学中许多重要问题的基础，关于线段的二维裁剪有许多成熟的算法。
The technology of line clipping plays an important role, and is a foundation of many important problems in the computer graphics process. There are a lot of good algorithms about a line clipping.
针对这一难点，提出了一种卫星轨道快速计算的方法-提取轨道的控制点，结合透视裁剪体来判断轨道的可见性。
According to this difficulty, a kind of fast calculation method of satellite orbit-extract the orbits control points is put forward, and perspective frustum is combined to judge the orbits visibility.
论文第2章介绍了真实感图形的生成过程。真实感图形的生成包括场景造型、取景变换、视域裁剪、消除隐藏面及可见光亮度计算等过程。
Chapter 2 introduces the process of the realistic graphics: situation - model view-change visual threshold -cut hidden-side eliminating and visible bright-ness calculation, etc.
运用基于块和三角形面片的混合裁剪模式，结合简化的高度差投影计算方法，快速选取适合的地形节点；
Hybrid culling technique based on blocks and triangle faces and simplified computing method for screen-space errors are employed to select appropriate terrain nodes rapidly.
同时，优化中还包括降低计算复杂度的查询裁剪的优化，以及兼顾空间和时间开销的查询结果合并方式。
Meanwhile, the optimization also includes reducing the computational complexity of the query optimization of trimming, and query results combination which considered both space and time cost.
对大型的多裁剪自由曲面生成的曲面有限元网格，可直接用于有限元计算。
The FEM mesh generated from large multiple trimmed free surfaces can be applied to finite element method directly.
在计算机图形学及CAD中，到目前为止所研究的裁剪窗口都是矩形或多边形的，而在实际应用中经常要用到圆形或椭圆形裁剪窗口。
In computer graphics and CAD, the clipping Windows researched up to now are all rectangular or polygonal. But in practice circular or elliptic clipping Windows are often used.
裁剪算法是计算机图形处理的重要算法。
The clipping is the important skill of computer graphical processing.
如计算机操作系统中的资源分配、服装行业中的面料裁剪、现实生活中物件的整理等各个领域都有着广泛的应用。
It has a wide range of applications such as the resource allocation of computer operating system, the fabric cutting of apparel industry, the collation objects in our daily life etc.
图形的裁剪与覆盖是计算机图形学中较为热点研究的问题，作者对此进行了深入的研究与实践，提出了较为理想的圆形窗口“裁剪与覆盖”的计算机辅助设计新算法。
Graphics clipping and covering is one of the key points in computer graphics field. After more study and practice, a new algorithm is give, which is for clipping and covering in circular window.
裁剪是计算机图形处理的重要技法。
The clipping is an important skill of computer graphical processing.
图形的裁剪与覆盖是计算机图形学中较为热点研究的问题，作者对此进行了深入的研究与实践，提出了较为理想的圆形窗口“裁剪与覆盖”的计算机辅助设计新算法。
Graphics clipping and covering is one of the key points in computer graphics field. Alter more study and practice. a new algorithm is give. which is for clipping and covering in circular window.
通过主观听辨实验和客观数据计算，对语音库裁剪和合成基元搜索算法进行验证。
We validate the algorithm of cluster reducing and unit selecting by carrying out subjective listening and objective testing.
通过主观听辨实验和客观数据计算，对语音库裁剪和合成基元搜索算法进行验证。
We validate the algorithm of cluster reducing and unit selecting by carrying out subjective listening and objective testing.
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