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A comment on H3: A Hexagonal Hierarchical Geospatial Indexing System. Parent comment

Re:H3: A Hexagonal Hierarchical Geospatial Indexing System by dvanduzer on Friday January 12, 2018 @04:09PM (#16136317)
For those interested in the variety of uses for hexagonal / hierarchical indexing, Dr. Kevin Sahr at Southern Oregon University has produced an open specification and a number of ancillary research around the topic: http://www.discreteglobalgrids.org/information/

There are several options for partitioning your grid, and the geometric consequences on your index. This overview in particular should be accessible even without a deep GIS background: http://webpages.sou.edu/~sahrk/sqspc/pubs/xuzhouKeynote13.pd...

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Re:H3: A Hexagonal Hierarchical Geospatial Indexing System by elihu on Friday January 12, 2018 @06:44PM (#16137294)
That's interesting. It looks like the ideas are similar to a Haskell library I wrote awhile back to tile a sphere with hexagons (and a few pentagons):

https://wiki.haskell.org/IcoGrid

My tiling had a fixed resolution that you specify up-front; I didn't really consider how to make my grid hierarchical.

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