异构CAD系统间的用户自定义特征在线交换  

Online Exchange of User Defined Features among Heterogeneous CAD Systems

作　　者：张宗常[1] 周广平[1] 胡静[1] 李路野[1] 高曙明[1] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310058

出　　处：《计算机辅助设计与图形学学报》2010年第10期1817-1823,共7页Journal of Computer-Aided Design & Computer Graphics

基　　金：国家"八六三"高技术研究发展计划(2007AA04Z149;2008AA04Z115).

摘　　要：用户自定义特征(UDF)能很好地反映用户特有的设计意图,减少重复性的设计活动,是主流CAD系统都提供的功能,因此实现UDF在线交换是异构CAD系统在线集成中不可或缺的一部分.为此,提出一种基于中性命令的UDF在线交换方法.在综合主流CAD系统UDF表示的基础上,给出了一种UDF的中性命令表示;然后给出系统UDF与中性UDF命令之间的相互转换算法,并重点介绍了其中的差异性解决方法.采用文中方法在Pro/E,SolidWorks和UG之间进行UDF实时交换的实例结果表明,文中提出的UDF在线交换方法能够有效地支持UDF在异构CAD系统间的实时创建、修改和删除操作.User defined feature（UDF）,which is a function provided by mainstream CAD systems,can reflect user＇s specific design intents well and reduce repetitive design activities.Therefore,online exchange of UDFs is an indispensable part of the online integration of heterogeneous CAD systems.An UDF online exchange approach based on neutral modeling command is presented.The neutral modeling command representation of UDFs is presented by synthesizing UDF representation of mainstream CAD systems.Then the translation methods between system UDF and neutral UDF command are proposed and the solution to the translation of UDF difference is emphasized.One test case of UDF exchange among Pro/E,SolidWorks and UG using the proposed approach is given.Experimental results show that the UDF online exchange method can support creation,modification and deletion of UDF among heterogeneous CAD systems effectively.

关 键 词：用户自定义特征 中性命令 异构CAD系统 数据交换 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]