摘要
为了实现CAD和CAPP之间的信息集成,提出一种CAD模型特征识别算法.首先通过提取模型的B-Rep信息,将CAD模型用属性邻接图来表示;然后利用面的凹凸性将CAD模型分解为若干独立的特征子图;最后利用图同构算法实现CAD模型的特征识别,并用一个实例来验证了该算法.
In order to achieve information integration between CAD and CAPP,a new algorithm for B-Rep model feature recognition is proposed.By extracting B-Rep information of the model,the CAD model is represented by the AAG（attribute adjacent graph）.Then,the CAD model is decomposed into several independent feature sub-graphs by the Concavity-Convexity of surface.Finally,feature recognition of the CAD model is achieved by the graph isomporphism algorithm,whose effectiveness is verified with a practical example.
出处
《西安工业大学学报》
CAS
2011年第1期44-47,共4页
Journal of Xi’an Technological University
关键词
特征识别
属性邻接图
凹凸性
图同构
feature recognition
attribute adjacent graph
concavity-convexity
graph isomorphism
