【摘要】 根据空间索引技术的划分区域是否与空间对象的分布特征有关将现有的空间索引技术进行分类,并介绍了它们的基本思想.全面地讨论了层次网格空间索引技术的基本思想和一些主要方法,及其在SircGIS.NET系统中的实现.更多还原

【Abstract】 This paper classifies the spatial index techniques according to their regions whether relate to the character of spatial object’s distributing or not, and introduces the basic idea of them. The basic thought and some important methods of the layer-grid spatial index is discussed in detail. Then, the paper introduces its realization in the system of SircGIS.NET.更多还原