The half-edge mesh structure is a manifold boundary representation, useful for writing tools that rely on quick adjacency queries and a uniform orientation.
介绍，半边网格结构是一个多能的边界表示法，在编写快速边界邻接查询和统一定位方面的工具非常有用。
At present, the CAD system always USES hybrid representations of feature representation and boundary representation in order to take advantages of both representations.
目前，在CAD系统中，一般采用特征表示和边界表示的混合表示方法，以充分利用两种表示法的优点。
Boundary processing includes boundary extraction and boundary representation. It is a basic research in image processing and analysis and is also a problem which isn't complete solved.
边界处理主要包括边界的表示和提取，是图象处理与分析中最基础的研究内容之一，也是至今没有得到完满解决的一类问题。
In the solid modelling of boundary representation, if we store part adjacent entities for some entity, for example, a first edge for a face, topology structures from part relationships will result.
在以边界表示的实体造型中，如果为某实体元素保存部分的邻接实体元素，这便导致了部分关系的拓扑结构。
The main work in the thesis are as follows: (1) Research on the representation of image boundary using chain code.
本文的工作主要从以下四个方面展开：(1)图象边界的链码表示研究。
The finite element representation of triangular prism and the treatment of boundary conditions ave described.
文中叙述了三棱柱体的单元表达式和边界条件的处理：手法。
An algorithm is presented for converting the linear quadtree representation of a simply connected region into a 4-direction chain code description of the region's boundary.
本文提出一种算法实现单连通区域的线性四元树表示转换成区域边界的4 -方向链码描述。
The novel online heuristic algorithm of representation based on polygonal boundary reduction is presented in detail.
提出了一种新颖的可在线计算的时间序列启发式算法。
Thus the rationality of the class of boundary integral equations with indirect and direct unknowns based onthe above mentioned representation is proved rigorously.
这样就比较严密而又浅近地证明了基于该表示式建立起来的间接变量和直接变量边界积分方程的合理性。
In the appendix, a rigidity matrix representation of a boundary member such as the curved beam is presented.
在附录中列出边缘构件曲梁的刚度矩阵的形式。
In the appendix, a rigidity matrix representation of a boundary member such as the curved beam is presented.
在附录中列出边缘构件曲梁的刚度矩阵的形式。
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