GIS空间数据与属性数据的存储结构研究  

Study on Storage Structure of Spatial Data and Categorical Data in GIS

作　　者：李欣[1] 相生昌[1] 许少华[1] 刘延军[1] 李小红[1] 

机构地区：[1]大庆石油学院计算机学院,黑龙江大庆163318

出　　处：《计算机应用研究》2005年第11期64-65,68,共3页Application Research of Computers

基　　金：国家自然科学基金资助项目(10172028)

摘　　要：对G IS中所涉及的各要素进行抽象,并给出其存储结构,在此基础上提出了整体G IS空间数据与属性数据的存储结构,包括逻辑存储结构和物理存储结构。采用层次模型和关系模型相结合的记录式文件系统来对空间数据和属性数据进行存取,并结合索引和数据字典技术加快了数据的存取速度,解决了传统G IS中空间数据和属性数据分开存储带来的问题,提高了大数据量的G IS应用的存取效率。Abstracts all the elements involved in GIS, and gives its storage structure of data, and in this basis proposes the holistic project of storage structure of spatial data and property data which involves logical storage structure and physical storage structure. Adopts the register style file system which is integrated by administrative levels model and relation model to access spatial data and categorical data, and combines the index and data dictionary technology to accelerate the access speed of data, and settles the problem which is brought by the separate storage of spatial data and categorical data in traditional GIS, improves the access efficiency of GIS application to the abundance data.

关 键 词：GIS 空间数据 属性数据 存储结构 数据模型 

分 类 号：TP311.52[自动化与计算机技术—计算机软件与理论]