computer aided geometric design造句

• Computer aided geometric design cag
  计算机辅助几何设计
• 2 farin g . curves and surfaces for computer aided geometric design : a practical guide
  最后每一个节点区间的值由两个值的组合来决定。
• 25 g farin . curves and surfaces for computer aided geometric design : a practical guide
  因此， dism给我们提供了一种生成物体并进行形变的简易方法。
• The degree reduction of parametric curves / surfaces is a key problem for computer aided geometric designed ( cagd )
  参数曲线曲面降阶是计算机辅助几何设计与制造中的研究热点之一。
• Press , 1992 . 5 hoschek j , lasser d . fundamentals of computer aided geometric design . london : ak peters , 1993
  由于给出的性质都是rfd基本理论的重要延伸，它们可以用在各种不同的cagd应用中。
• Ma lizhuang , peng qunsheng , smoothing of free - form surfaces with bezier patches , computer aided geometric design , vol . 12 , 1995 ( sci )
  马利庄，王荣良，计算机辅助几何造型技术及应用，科学出版社，北京， 1996
• L yonggang , wang guozhao , and yang xunnian , ( 2002 ) , uniform hyperbolic polynomial b - spline curves , computer aided geometric design , 19 ( 6 ) 379 ~ 393
  李将云,杨勋年,汪国昭( 2003 ) ,图象缩放的离散算法,计算机辅助设计与图形学学报。
• Blending surfaces is one of the core contents in computer aided geometric design , which gives the spacial surfaces modeling to the theorical guarteens
  曲面拼接问题是cagd理论研究的一个核心内容,它为空间曲面造型技术提供了理论保证
• The speciality of such surfaces and the development of the new theory and technique in computer aided geometric design make it easy for the solution to this task
  旋转面的特殊性以及现代计算机辅助几何设计技术的发展，为针对这个课题进行研究提供了较好的先决条件。
• Computer aided geometric design , 1989 , 6 : 323 - 358 . 7 seidel h p . symmetric recursive algorithms for surfaces : b - patches and the de boor algorithm for polynomials over triangles
  2三角b样条曲面的曲率分布具有“节点线”现象，也就是说在其曲率在三角面片的边界上有“聚集”现象。
• Reverse engineering is becoming an important field in computer aided geometric design . it also has profound impact on traditional industry and the development of manufacture technology
  反向工程是计算机辅助几何设计中的一个重要课题，其在传统工业及制造科技发展中也发挥着巨大的作用。
• In the fields of reserve engineering , cad / cam , computer aided geometric design , computer graphics , etc . , the key problems are the reconstruction of complicated surfaces and the standard tools are nurbs curves and surfaces
  在反向工程、 cad cam 、计算机辅助几何设计( cagd )和计算机图形学等领域，一个关键的问题是复杂曲面的重建，所使用的标准工具是nurbs曲面。
• Surface modeling is an important subject in computer aided geometric design and computer graphics . it researches on denoting , designing , displaying and analyzing of surface in the environment of computer image system
  曲面造型( surfacemodeling )是计算机辅助几何设计( computeraidedgeometricdesign , cagd )和计算机图形学( computergraphics )的一项重要内容，主要研究在计算机图象系统的环境下对曲面的表示、设计、显示和分析。
• Along with the great progress in 3d data measurement device and the popularization of complex surface modeling , recursive subdivision has been a research focus in the world over the past 20 years in computer aided geometric design and computer graphics
  近二十年来，随着三维数据采样设备的长足进步与复杂拓扑结构的曲面造型日益普及，细分曲面已成为计算机辅助几何设计( cagd )和计算机图形学( cg )领域内的一个国际性研究热点。
• Secondly , based on the theories of computer graphics and computer aided geometric design , and according to the traits of automobile panels , the related theory and experience about 3d geometric expressing of automobile panels are described . it is studied to the constitution methods of typical surfaces forming the surfaces of automobile panel , fairing quality and error analysis and optimization of reconstruction surfaces , and the storage structure of " half " edge for 3d model , data changes in different stamping steps and data exchange among the different software
  然后，在计算机图形学和计算机辅助几何设计等理论的基础上，根据汽车覆盖件的特点，归纳总结了适用于汽车覆盖件三维形体几何表达的相关理论和经验；研究了构成汽车覆盖件曲面的典型曲面构造方法，重构曲面的光顺品质分析、误差分析与曲面品质优化的方法，三维重构模型的“半”边数据结构、不同冲压工序中的数据演化以及不同软件平台之间的数据交换；提出了根据周边曲面的形状特点构造交汇曲面的方法。
• In this paper , we take the reconstruction of surface of revolution as our main aim , and by using the delaunay triangulation , the definition of curvature and the theory of b - spline , we present a way of reconstructing surface of revolution from point cloud . the main content of this paper is given in the following . computer aided geometric design and reverse engineering are the basis of this article
  本文以旋转面重建算法为主要研究对象，应用三角部分、曲率的定义以及b样条理论提出了一种由点云数据构造旋转面的方法，主要工作如下：计算机辅助几何设计以及反向工程是本文的理论基础，因此论文的第一章对其进行了简短的回顾和综述，并给出了旋转面重建算法目前的研究状况。
• 3d cad technology has been widely used in the manufacturing industry with the development of computer graphics , computer aided geometric design , high performance computing and other related technologies . the cad model is the basis of product development , manufacturing , re - design and maintenance
  随着计算机图形学、计算机辅助几何设计和高性能计算等相关技术的发展， 3维cad技术已在制造业中被广泛使用，产品的3维cad模型已成为现代产品开发、制造、改型和使用维护的基础和平台。
• The importance that uses " geometric design and calculate ( gdc ) " rather than " computer aided geometric design " is explained . because the concept " geometric design " ca n ' t completely depict cagd which has not only the strictly mathematic theory but also the important applied background
  并在此基础上说明了用“几何设计与计算”这个概念来代替“计算机辅助几何设计”的意义，这是因为仅有“几何设计”的概念还不足以刻画“计算机辅助几何设计”这样一个既有严格数学基础又有重要应用背景的学科。