GIS (Geographical Information System) is a computer support system that represents data using maps. It helps people access, display and analyse data that has geographic content and meaning. For those not familiar with GIS, it used to be a niche IT ma

创建空间索引结构R树的源程序，解压后的文件中有readme文档。-create spatial index R-tree structure of the source, the paper after extracting a readme file.