深入浅出空间索引：2 - zhanlijun - 博客园


深入浅出空间索引：2 - zhanlijun - 博客园
深入浅出空间索引：为什么需要空间索引
　　传统索引使用哈希和树这两类最基本的数据结构。空间索引虽然更为复杂，但仍然发展于这两种数据结构。因此可以将空间索引划分为两大类：1）基于哈希思想，如网格索引等；2）基于树思想，有四叉树、R树等。

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