空间数据库中空间数据结构的应用，K-d树基本操作的源码，都在这个文档中。-spatial database structure of the data space applications, K-d trees basic operation of the source code in the documents.

根据vc环境，建立点线区空间数据库，实现拓扑关系查询等功能-According to vc environment and create a dotted line area spatial database queries and other functions to achieve topological relations

VLDB经典论文Maxoverlap代码，是空间数据库双色反最近邻的重要论文-VLDB classic paper Maxoverlap code, color spatial database is an important anti-nearest neighbor papers