In this paper , an integrated calculate method including three - dimensional configuration design , aerodynamic analysis , and computation of radar cross section ( rcs ) is researched 本文对与导弹总体设计密切相关的三维几何造型、气动性能与雷达散射特性的一体化计算作了相关研究。
The main results in this paper are as following : 1 . summarize the develop and actuality of cagd . introduce the meaning and foreground in fairing of curves and surfaces 在综述几何造型原理的基础上，回顾几何造型技术的发展趋势和现状，并介绍了曲线曲面光顺技术的意义和发展前景。
In consult other fields made achievements in geometric modeling technology , made preliminary discussion to geometric modeling technology of three - dimension packaging cad system . 在参考其它领域在几何造型技术方面所取得成就的基础上，对三维包装cad系统的几何造型技术做了初步探讨。
The general mainframe of the 3d modeling and nc milling programming software in the superman2000 cad / cam system is established . the system structures and data flows are designed 分析面向制造业的cad cam系统的需求，建立了超人2000cad cam系统中三维几何造型与数控铣削编程软件的总体框架，设计系统结构、数据流。
To author ' s knowledge , almost all of research works in computer graphics have been proposed for two main kinds of properties of 3d models : geometric shape and texture property 就我们所知，三维几何造型和处理中所有的工作都是针对三维模型在计算机图形学中的两个主要属性? ?模型的几何形状和模型的纹理属性? ?展开的。
Analysed the present domestic packaging cad softwares , could find out that packaging cad system that lacks its own geometric modeling technology . and geometric modeling technology is foundation and core of cad 分析目前国内的包装cad软件，可以看出包装cad系统缺少自己的几何造型技术，而几何造型技术是cad的基础和核心。
Space deformation is an effective tool for geometric shape modification in geometric modeling and computer animation system - however , the sampling problem for the polygonal object deformation is unsolved yet 空间变形是几何造型和计算机动画中一种重要的几何外形编辑技术，但是多边形物体的变形采样问题还没有得到很好的解决。
Romanian - born sculptor who settled in paris in1904 . he broke sharply with the realist tradition , making abstract sculptures , chiefly in metal and stone , of great geometric simplicity 布兰诺西，康斯坦丁1876 1957罗马尼亚裔雕刻家，于1904年定居于巴黎。他鲜明地打破现实主义传统，主要用金属和石头为材料创作了极简单明快的几何造型的抽象雕塑
It is a familiar problem for changing shape of curves in geometric shape design , the article mainly focused on the definition and extension of parameterized curves which are adjustable , and the conclusion is described as follows 调整和改变曲线的形状是几何造型领域中常见的问题，本文重点讨论参数可调曲线的定义与推广，得到下述一些结果。
Basing on studied native and foreign development status of geometry sculpture and production model , the paper lucubrates iges data structure , brings forward the conversion method of production data model in virtual machining environment 本文在研究国内外几何造型和产品模型的发展状况基础上，深入研究了iges的数据结构。提出了虚拟环境下的产品数据模型的转换方法。
