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Geohashes are Rad
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Brian Leonard
September 20, 2014
Technology
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Geohashes are Rad
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Transcript
Geohashes are rad Brian Leonard @bleonard 09/20/2014
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Geohashes • Encode lat/lng into a “sha” • Group loca?ons
• Compare loca?ons to each other
Geohashes Spot in London (51.507794, -0.127952)
Geohashes Spot in London (51.507794, -0.127952) gcpvj0dyds
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Encoded 00101 10101 01110 00110 00110 00110 11110 00111 5
p f 6 6 6 y 7
Close! 5 p f 6 6 6 y 7 5
p f 6 6 6 y 2
Geo Box Size Precision Meters 1 5003530 2 625441 3
123264 4 19545 5 3803 6 610 7 118 8 19 9 3.71 10 0.6
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* Substrings
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Brian Leonard @bleonard Geohashes are rad. That’s it.