【作者】 韦人玮；

【导师】 杜清运；

【作者基本信息】 武汉大学 ， 地图学与地理信息系统， 2005， 硕士

【摘要】 多媒体电子地图是一种重要的空间数据的发布手段。随着技术的不断进步,这种优秀的多媒体地图产品得到不断发展和推广的同时,也遇到了新的需求。人们希望通过无处不在的网络代替光盘来浏览多媒体电子地图;希望多媒体电子地图的表现形式因人而异,更加具有亲和力;希望突破作者的预先设定的逻辑结构,更加随意的浏览信息等等。同时,多媒体电子地图的生产者也希望生产过程能够更加简单;数据能够最大程度的复用,能够更好的检索、管理等等。 XML技术有可能成为上述问题的解决方案。它规定了数据表达的语法,提供了文档管理的周边技术,不同于传统的文件;它是一种灵活的,模式多变的,特别适合描述层次结构数据的技术,不同于关系数据库。 本文探索了一条以XML文档作为集成工具中数据表达、组织、存储和管理手段的技术路线。文中对数据的特点、分类、组织、发布进行了详细的分析并通过XML Schema定义了一套文档模式。该文档模式定义了多媒体数据的元数据以及多媒体电子地图的超媒体数据组织机制。最后,在此基础上借助SVG实现了文档的可视化。更多还原

【Abstract】 Multimedia electronic map is one important distributing method of spatial data. With the development of technology, the products of multimedia electronic map make great progress and are applied to all kinds of fields. At the same time, the products of multimedia electronic map also are faced with the new requirements. For instance, the users want to browse and query the multimedia electronic map in the internet instead of the CD-ROM, users wish that the representative style of multimedia electronic map can change with the different need of people, and so on. In addition, the producers of multimedia electronic map wish that the creation procedure of the electronic map can be simplified, the data can be reused fully, and the system can be managed and queried efficiently.XML technology used in multimedia electronic map can solve the problems above. It includes the syntax of data representation, provides the technology of managing the documents. Different from the traditional file formats and relation database, it is flexible and fit for describing the hierarchical data.This paper focuses on the technology of data representation, organization, save and management methods based on the XML document. In the Paper the character, classification, organization, distribution of data is analyzed in detail, and one document schema is defined by using XML Schema. The document schema refers to the metadata of multimedia data and the mechanism of hyper-media data organization of multimedia electronic map. At last, SVG is used to implement the visualization of the documents.更多还原