| 1. | Shipbuilding - shipline - numerical representaion of elements of the hull geometry numerical
船体几何元素的数字表示 |
| 2. | Shipbuilding - shipline - numerical representation of elements of the hull geometry
造船船体型线船体几何元素的数字表示 |
| 3. | Research on primitive geometric elements intersection test in virtual environment
虚拟场景中基本几何元素相交测试技术 |
| 4. | It is very important to handle the constraints in parametric design for clothing patterns
摘要在服装纸样参数化设计中，对其几何元素的约束处理是非常关键的。 |
| 5. | Opengl is an implement of 3d graphic exploiture , here we describe its structure of program , base geometry element , transform of reference frame and illumination . the projection use visual c + + to exploiture
Opengl是一种三维图形开发工具，在论文中，介绍了opengl的程序结构、基本几何元素、坐标变换和光照处理等基本内容。 |
| 6. | The reason is that in the most of designing and constructing units , computer is only looked upon as an " electric board , " nearly all of the information related to the geometric elements must be saved by another system
这是因为在大多数设计或建造单位，微机的应用仅仅限于“电子图板” ，而那些与几何元素相关的信息需用另一套系统来保存，即图形与数据的分割。 |
| 7. | Both of them decrease the size of control mesh evidently , and meanwhile the quality of subdivision surface is guaranteed . all these save lots of time and space for successive storage , transmission and modification
可以在保证所需细分质量前提下，使得表示细分曲面的控制网格上的几何元素的数量明显下降，从而为细分曲面的后续处理、存储、传输节约了大量的时间和空间。 |
| 8. | Besides used as a tool for assisting in locating geometric elements during sketching stage , constrains is also a useful tool for convey design intents and knowledge during conceptional design stage
约束已经成为支持整个设计过程不可缺少的部分，它摘要浙江大学博士学位论文不仅在详细设计阶段用来表示几何元素联系和定位的信息，而且在概念设计阶段是设计者表达设计意图和知识的工具。 |
| 9. | In order to support users ’ interactions such as picking and geometric modification , a mapping between geometric models and triangular gridding models is established on the basis of four directional mappings of geometric element and identifier
基于几何元素与标识符的四个单向映射,建立了服务器几何模型与客户端网格对象的映射关系,以支持客户端用户对模型的捡取、几何修改等交互操作。 |
| 10. | The theorem states that for a finite family a of at least d + 1 convex sets in r ~ ( d ) , if every d + 1 members of a have a point in common , then there is a point common to all the members of a . there are many gener - alizations of helly theorem
这些问题的共同特点是由几何元素出发，研究其抽象的关联性质。 helly定理是组合几何中一个非常重要的定理，由其衍生出的多种多样的问题统称helly型问题。 |
