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Quadkey Cells #28

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daniel-j-h opened this issue Jul 25, 2021 · 0 comments

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daniel-j-h commented Jul 25, 2021

Quadkeys partition the globe, recursively.

The cells are then numbered following a z-order space filling curve (bit interleaving), with a base-4 representation.

We have a z-order space filling curve already in

https://github.com/tinygraph/tinygraph/blob/7047d80631c5b41244c9fcc6c7ee77aed80828a0/tinygraph-zorder.h

The quadkey hierarchy can then be stored efficiently e.g. in a succinct trie #23

See

https://docs.microsoft.com/en-us/bingmaps/articles/bing-maps-tile-system

daniel-j-h added a commit that referenced this issue


          Adds quadkey skeletons, see #28

6a511cb

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