摘要
本文阐述了一种GIS平台-GRASS平台的基本结构和特点,分析了GRASS矢量图的文件结构及空间索引的几种基本算法,阐明了建立R树索引机制的一些基本思路和方法,提出了在GRASS平台上建立R树索引模型的实现策略。
This paper not only describes the basic framework and characteristics of the GRASS platform, but also analyzes the structure of GRASS' s vector files and several basic index methods for spatial data. It provides the ideas and methods of building R-Tree indexes based on the GIS platform. Also, this paper introduces a strategy of implementing R-Trees based on the GRASS platform.
出处
《计算机工程与科学》
CSCD
2003年第6期93-96,共4页
Computer Engineering & Science
