关键词: 计算机辅助设计, 实体造型, 非流形, 复形, 边界表示

Abstract:

An identification edge structure is put forward to represent non manifold modeling,which is built on the concepts and methods of the complex and CW complex in algebraic topology.The identification edge structure can represent the internal structure of an object and describes the relations of topological elements flexibly and concisely.

Key words: computer aided design, solid modeling, non manifold, complex, boundary representation