Study on Storage Structure of Spatial Data and Categorical Data in GIS
GIS空间数据与属性数据的存储结构研究

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.