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Re:H3: Hexagonal hierarchical geospatial indexing system by captare on Wednesday September 15, 2021 @12:54PM (#28541490)
I’ve used the excellent DGGRID for building geo-hex grids: https://github.com/sahrk/DGGRID
Re:H3: Hexagonal hierarchical geospatial indexing system by JakeStone on Wednesday September 15, 2021 @12:59PM (#28541552)
DGGRID was very useful for me when I first started experimenting with hexagon partitioning.

One of my projects is using the Dymaxion projection, which H3 uses, and I've found H3 to be a lot faster for my uses. YMMV.