基于图文法制导的ER图自动绘制技术  

ER-Diagram Automatic Drawing Technology Based on GraphGrammars-Directed

作　　者：赵凤芝[1] 侯柏苓[1] 文必龙[1] 

机构地区：[1]东北石油大学计算机与信息技术学院,大庆163318

出　　处：《计算机系统应用》2012年第12期153-157,共5页Computer Systems & Applications

基　　金：国家科技重大专项(2008ZX05023-05-05)

摘　　要：逻辑模型可视化对于软件开发和技术研究具有重要的意义.提出了一种基于图文法制导ER图自动绘制技术,并对图文法进行扩展命名为ER图文法,它克服了在原有建模工具中绘制ER图图幅数量有限和不易更改的缺点,并从语义上对实体关系及ER图绘制规则进行描述,提出ER图自动布局和布线算法,实现ER图的自动绘制.To software development and technology research, logical model visualization has an important significance. This paper puts forward an ER-diagram automatic drawing technology based on graph grammar-directed, and expands graph grammar named ER graph grammar. It overcomes the shortcoming of limited map number for drawing ER- diagram and difficult changing in original modeling tools, and describes relationship of entities and drawing rules of ER-diagram on the semantic. ER-diagram automatic placement and automatic wiring are presented, and ER-diagram automatic drawing is realized.

关 键 词：ER图自动绘制 图文法制导 自动布局 自动布线 规则 

分 类 号：O157.5[理学—数学] TP391.1[理学—基础数学]