| 基于图文法制导的ER 图自动绘制技术 |
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| 引用本文： | 赵凤芝,侯柏苓,文必龙.基于图文法制导的ER 图自动绘制技术[J].计算机系统应用,2012,21(12):153-157. |
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| 作者姓名： | 赵凤芝 侯柏苓 文必龙 |
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| 作者单位： | 东北石油大学 计算机与信息技术学院, 大庆 163318;东北石油大学 计算机与信息技术学院, 大庆 163318;东北石油大学 计算机与信息技术学院, 大庆 163318 |
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| 基金项目： | 国家科技重大专项(2008ZX05023-05-05) |
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| 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．
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| 关 键 词： | ER图自动绘制 图文法制导 自动布局 自动布线 规则 |
| 收稿时间： | 2012/5/20 0:00:00 |
| 修稿时间： | 2012/6/23 0:00:00 |
ER-Diagram Automatic Drawing Technology Based on GraphGrammars-Directed |
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| ZHAO Feng-Zhi,HOU Bai-Ling and WEN Bi-Long.ER-Diagram Automatic Drawing Technology Based on GraphGrammars-Directed[J].Computer Systems& Applications,2012,21(12):153-157. |
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| Authors: | ZHAO Feng-Zhi HOU Bai-Ling and WEN Bi-Long |
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| Affiliation: | School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China;School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China;School of Computer and Information Technology, Northeast Petroleum University, Daqing 163318, China |
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| Abstract: | 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 ERdiagram 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. |
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| Keywords: | ER-diagram automatic drawing graph grammars-directed automatic placement automatic wiring rules |
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