【摘要】 随着企业信息化应用的不断深入,工程数据的存储和显示,特别是图形和文字混合的工程数据的存储和显示,仅靠转义字符的表达形式已无法满足现有的应用需求。提出了一种基于XML的工程语义表达模型,并给出了该表达模型的实现框架,它不仅能表达各种自定义的图形工程数据,而且能与其他文本信息统一集成,给工程数据的显示以及工程语义的提取带来了方便。该表达模型在CAD和CAPP中得到了应用,取得了良好的效果。更多还原

【Abstract】 With the rapid development of enterprise information applications,the storage and display of engineering data,especially the storage and display of mixed graphics and text’s engineering data,cannot satisfy the recent applications by only relying on escape character.The paper proposes an expression model of engineering semantics based on XML,and presents its model’s realization.It can not only express a variety of custom graphical engineering data but also be integrated with other text information.It is convenient to display engineering data and extract engineering semantic.The application of the expression model in CAD and CAPP plays a good effect.更多还原