【摘要】 空间数据库系统通过引入空间索引机制来提高空间数据操作的效率。迄今人们已经提出了许多空间索引方法,文章回顾了这些方法的基本思想,并根据它们所采用的基础数据结构和存储空间数据的方法将现有的空间索引方法进行分类。最后,简要的讨论了空间索引方法的发展方向。更多还原

【Abstract】 Efficient processing of operations in spatial database systems relies upon auxiliary spatial indexing mecha-nism.A large number of spatial indexing methods have been proposed.This paper reviews the basic issues in indexing spatial data,classifies the existing indexing methods according to their underlying data structures and the techniques used to handle spatial objects,and briefly discusses the future research directions.更多还原