| 交互式CAD的协同绘图系统 |
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| 引用本文： | 陈泽琳,房寒平.交互式CAD的协同绘图系统[J].华南理工大学学报(自然科学版),2001,29(10):56-60. |
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| 作者姓名： | 陈泽琳 房寒平 |
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| 作者单位： | 华南理工大学计算机科学与工程系, |
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| 基金项目： | 广东省自然科学基金资助项目(970555) |
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| 摘 要： | 描述了一个同步式协同设计系统－协同绘图系统，给出了系统共享信息的存储结构和并发机制。在共享信息存储结构中提出了图形信息的复制对象和文字、命令信息的集中对象的数据结构。为了使多用户可以协同一致地工作，采用了三种并发控制机制结合的并发控制方案。另外，文中还给出了一个协同绘图原型系统的实现方法验证了提出的同步式协同环境的设计方法的正确性。
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| 关 键 词： | 分布式CAD 并发控制 面向对象程序设计 客户机／服务器 协同绘图系统 |
| 文章编号： | 1000-565(2001)10-0056-05 |
Cooperative Drawing System for Interactive CAD |
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| Chen Ze_lin,Fang Han_ping.Cooperative Drawing System for Interactive CAD[J].Journal of South China University of Technology(Natural Science Edition),2001,29(10):56-60. |
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| Authors: | Chen Ze_lin Fang Han_ping |
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| Abstract: | This paper describes a synchronous cooperative system-the Cooperative Drawing (Co_Drawing) system. In our system, the sharing information storage architecture and the concurrency control mechanisms are presented. Replicated objects for graphics and centralized objects for text and command are used simultaneously as the sharing information storage architecture. The combination of three mechanisms for the concurrency control is adopted so as to enable multi_user to work coordinately and consistently. Finally, the paper presents a prototype implementation of the Co_Drawing system that has examined the approach of a synchronous cooperative design environment. |
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| Keywords: | computer_supported cooperative work distributed CAD concurrency control object_oriented programming client/server |
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