spatial

I recently did an exercise in trying to build an app while pretending to be a minimalist. This required that I be able to filter gps points without using my tried and true friend PostGIS. I took a quick tour of the three most popular ways to index spatial data : Geohash, H3, and S2. All 3 of these tools work by slicing up the globe into shapes that sub-divide into smaller and smaller units as you zoom in. GeoHash uses rectangles H3 uses hexagons S2 is wild and uses a space filling curve A great way to explore how…