r-tree

R-Tree and Quadtree Comparison

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Here’s paper which has pretty nice comparison of QuadTrees and R Trees: Quadtree and R-tree Indexes in Oracle Spatial: A Comparison using GIS Data Some differences: Quadtrees require fine-tuning by choosing appropriate tiling level in order to optimize performance. No specific tuning is required for R-Trees. Quadtree can be implemented on top of existing B-tree. … Read more

What is the difference between a KD-tree and a R-tree?

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They are actually quite different. They serve similar purpose (region queries on spatial data), and they both are trees (and both belong to the family of bounding volume hierarchy indexes), but that is about all they have in common. R-Trees are balanced, k-d-trees are not (unless bulk-loaded). This is why R-trees are preferred for changing … Read more