摘要
为了解决常见的空间索引机制存在的不足,构造一个高性能的空间索引机制,通过分块的线性可排序四叉树与空间范围查询相结合的方法,提出了基于空间数据库的分块多级空间索引机制,很好地解决了线性可排序四叉树的扩展性差的问题,同时与空间范围查询的结合使得查询结果更加精确。
In order to deal with common spatial index mechanism for the existence of insufficient space to construct a high-perfor- mance indexing mechanism, through the sub-block can be sorted linear quad-tree spatial range queries with a combination of meth- ods, spatial databases based on the sub-block multi - level spatial index mechanism, a very good solution to the linear quad-tree sort of poor scalability and at the same time and space makes the combination of the scope of query search results more precise.
出处
《微计算机信息》
2009年第21期139-141,共3页
Control & Automation
关键词
空间数据库
分块多级空间
空间索引机制
spatial database
sub-block multi-level space
space indexing mechanism
