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Geohashes are Rad

Avatar for Brian Leonard Brian Leonard
September 20, 2014
Technology
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0

Geohashes are Rad

Lightening talk give at Golden Gate Ruby Conference 2014

Avatar for Brian Leonard

Brian Leonard

September 20, 2014

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Transcript

  1. Geohashes are rad Brian Leonard @bleonard 09/20/2014

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  9. Geohashes •  Encode lat/lng into a “sha” •  Group loca?ons

    •  Compare loca?ons to each other

  10. Geohashes Spot in London (51.507794, -0.127952)

  11. Geohashes Spot in London (51.507794, -0.127952) gcpvj0dyds

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  15. Encoded 00101 10101 01110 00110 00110 00110 11110 00111 5

    p f 6 6 6 y 7

  16. Close! 5 p f 6 6 6 y 7 5

    p f 6 6 6 y 2

  17. 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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  19. * Substrings

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  21. Brian Leonard @bleonard Geohashes are rad. That’s it.