中文摘要：

为了扩展网络零件库的效用,提出了一种以零部件的虚拟现实建模语言模型为基础,在网络零件库开发应用服务提供商图形服务的思想.分析了零件库中的图形服务内容,根据零件虚拟现实建模语言模型的特点,建立了基于虚拟现实建模语言的应用服务提供商图形服务平台的系统架构.详细论述了部分图形服务涉及的基础算法.在上述研究的基础上,基于已开发的网络零件库,开发了面向虚拟现实建模语言模型的搜索引擎.最后,通过该系统中的一个应用实例,验证了上述算法和系统的有效性.

英文摘要：

In order to extend the utility of Web parts-library, a novel idea which developed diversified Application Service Provider （ASP） graphics services based on Virtual Reality Modeling Language （VRML） models of the parts and components in parts-library was proposed . The contents of graphics services were analyzed. According to the characteristics and structure of VRML model, the architecture for ASP graphics services platform based on VRML model was established. Several basic algorithms involved in some graphics services in the platform were discussed in detail. Based on these studies, a parts search engine oriented to VRML models in the parts-library was developed, and an application case in the system was used to indicate the effectiveness of the system and the algorithms.