计算机工程 ›› 2010, Vol. 36 ›› Issue (23): 19-21.doi: 10.3969/j.issn.1000-3428.2010.23.007

• 博士论文 • 上一篇    下一篇

基于特征命令交换的在线协同设计方法

荆树旭1,柳伟2   

  1. (1. 长安大学信息工程学院, 西安 710064; 2. 上海交通大学模具CAD国家工程研究中心, 上海 200030)
  • 出版日期:2010-12-05 发布日期:2010-12-14
  • 作者简介:荆树旭(1978-),男,讲师、博士,主研方向:计算机辅助设计,计算机图形学;柳伟,讲师、博士
  • 基金项目:
    国家自然科学基金资助项目“复杂自由几何特征重用机制研究”(60903111)

Online Collaborative Design Method Based on Feature Command Exchange

JING Shuxu1,LIU Wei2   

  1. (1. School of Information Engineering, Chang’an University, Xi’an 710064, China; 2. National Die and Mold CAD Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030, China)
  • Online:2010-12-05 Published:2010-12-14

摘要: 在线协同设计中特征命令的并发执行将导致文档状态的不确定,其直接后果是造成拓扑对象编码/命名冲突。为此,将状态向量作为特征命令执行文档状态的简化描述形式以方便参与者间的通信,结合各个参与者本地的特征命令队列以及几何模型对特征命令的执行文档状态进行精确描述。基于该精确描述方法对特征命令的本地和远端执行文档状态进行分析,提出特征命令执行文档状态确定化算法以保证拓扑对象编码/命名的正确有效性。

关键词: 在线协同设计, 特征命令交换, 拓扑命名

Abstract: Concurrent execution of feature commands will lead to uncertainty of the command execution context and consequent conflict of topological objects’ identification. A state vector based concise description of feature command execution context, which is convenient for communication among participants, is proposed. Together with the feature command list and geometric model on every participant, an accurate description of feature commands’ execution context is achieved. Based on this accurate description, the execution context of feature command at local and remote site can be analyzed. An algorithm to solve the uncertainty of feature command execution context is presented to ensure the validity of topological objects’ identification.

Key words: online collaborative design, feature command exchange, topological naming

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