wolf-h3-viewer.glitch.me (via) Neat interactive visualization of Uber's H3 hexagonal geographical indexing mechanism.
Here's the source code.
Why does H3 use hexagons? Because Hexagons are the Bestagons:
When hexagons come together, they form three-sided joints 120 degrees apart. This, for the least material, is the most mechanically stable arrangement.
Only triangles, squares, and hexagons can tile a plane without gaps, and of those three shapes hexagons offer the best ratio of perimeter to area.
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