基于数据注册中心和World Wind的空间数据存取

传统的集中式数据库、文件系统已经不能有效地处理海量增长数据的存取和管理，而需要采用分布式存储。同时，伴随着对空间信息研究的快速发展，地理信息系统应用逐步走入人们的生活。针对空间数据的存取问题，本文结合数据注册中心和World Wind Java，实现对空间数据进行存取。首先利用元数据与数据分离的分布式存储方式，以KML来统一组织和管理各种空间数据属性，实现对空间数据的存储，最后用World Wind Java实现对空间数据的读取和展示，以便对采集的空间数据进行有效的存取及为行业应用提供服务，以充分发挥数据的作用，大大减轻对空间数据存储的负担。

Spatial Data Access Based on Data Registration Center and World Wind

Traditional centralized databases and file systems cannot effectively handle the massive growth in data access and man- agement, and are needed to adopt a distributed storage. Meanwhile, along with the rapid development of spatial information, GIS applications gradually come into people＇ s lives. For spatial data access, this paper combines the data registration center with World Wind Java to achieve the spatial data access. First, by using the separately distributed storage way of metadata and data, KML is taken to organize and manage variety of spatial data attributes to realize the spatial data storage, and finally, World Wind Java is used to implement the read and display of spatial data, in order to effectively access the collected spatial data, provide services for applications, give full play to the role of data. and greatly reduce the burden of soatial data storage.