基于XML矢量图形SVG应用的软件体系结构研究

在单个SVG文档的模块化与结构化的基础上,分析了SVG实体的特征和组织方式,描述了SVG实体、对象、类的结构组成,提出了基于SVG应用的软件开发的体系结构SSA和系统框架设计。在SSA中,设计了一个转换算法,算法针对大量的SVG实体进行分类、提取SVG图元,并将SVG图元存储在关系数据库中,解决了包含大量SVG实体的应用系统存在的运行速度的问题、SVG组件的数据重用问题和基于数据库系统的SVG开发问题。设计了一个基于SSA的数字文物导航平台系统,通过该系统与传统的基于H tm l/Im age的文物展现模式的比较,验证了SSA开发模式的有效性。

Study of SVG Software Architecture Based on XML

According to the modularized SVG Entity feature and framework,we described a relationship among SVG entity,SVG class and SVG object,and presented a software architecture for a software development based on SVG application(called SSA).In SSA,we designed a transformation algorithm to implement very large SVG entity classification;then some SVG meta-graphs were extracted from SVG entity,SVG class and SVG object and saved to RDBMS.The algorithm has solved three problems: slow execution speed in SVG application system including very large SVG entities,data reuse issue for SVG component and SVG development issue for based on RDBMS.We designed an explorer platform system of digital museum based on SSA,and compared with traditional digital museum development model based on Html/Image.Experimental results showed the effectiveness of our SSA and goods performance for SVG application development.