摘要
介绍了一种新的参数化设计中约束关系的描述方法，并根据这些约束数据形式提出了基于有向无环图的数据结构表示思想。这种数据结构集工程图所有的约束关系于一体，具有结构单一、操作简便、信息完备且无冗余等优点，已在工程图理解系统中得到成功的应用。
This paper presents a new method on describing the constraint relations needed in parametrization design system. According to the form of these constraint data, a new integrated representation data structure for these constraints has been designed by applying Directed Acyclic Graph (DAG) technique. This structure has many good properties such as structure uniformity, operation simplicity and information integrity with no redundancy. The proposed structure has been sucessfully applied in Engineering Drawing Recognization System(EDRS).
出处
《机械科学与技术》
CSCD
北大核心
1997年第5期818-822,共5页
Mechanical Science and Technology for Aerospace Engineering
关键词
参数化设计
拓扑约束
尺寸约束
机械设计
Parametrization design Topological constraint Dimension constraint Directed acyclic graph
