面向数字城市多源数据的空间数据立方体数据组织研究  

Data organization of spatial data cube on multi-source data for digital city

作　　者：邹逸江[1] 

机构地区：[1]宁波大学建筑工程与环境学院,浙江宁波315211

出　　处：《计算机应用研究》2008年第5期1461-1464,共4页Application Research of Computers

基　　金：国家自然科学基金资助项目(40273042);宁波市科技局资助项目(2005A310004;2006A610092)

摘　　要：定义了面向数字城市多源数据的空间数据立方体地理空间维、专题维和时间维分别包含的数据种类和内容;设计了它们的维和维层次数据结构;表述了地理空间维、专题维和时间维在概念层次上和物理层次上构成空间数据立方体的方法;确定了地理空间维、专题维和时间维数据的多维数组组织方法,以及多维数据的数据文件和虚拟内存存储策略;表达了多维数组中记录间的关联运算和多维数组的压缩方法。This paper defined multi-source data for digital city, data classification and data content, respectively contained by geosDatial dimension, thematic dimension and time dimension of spatial data cube. It described the geospatial dimension, the matic dimension, time dimension structure and their dimension hiberarchy structure. The method that geospafial dimension, thematic dimension, time dimension together make up spatial data cube was expressed by conceptual and physical mode. Also, the data organization based on multi-dimension array and data storage based on data file and virtual memory on geospatial dimension data, thematic dimension data and time dimension data were explained. The associational operation between records in multi-dimension array and compress method of multi-dimension array were stated.

关 键 词：地理信息系统 空间数据立方体 多维数组 多源数据 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]