https://github.com/hrs/geohashing

XKCD geohashing algorithm
https://github.com/hrs/geohashing

Last synced: about 1 month ago
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XKCD geohashing algorithm

• Host: GitHub
• URL: https://github.com/hrs/geohashing
• Owner: hrs
• Created: 2012-02-28T19:50:14.000Z (almost 13 years ago)
• Default Branch: master
• Last Pushed: 2013-07-24T21:08:45.000Z (over 11 years ago)
• Last Synced: 2024-11-30T22:17:16.494Z (about 2 months ago)
• Language: Ruby
• Homepage:
• Size: 58.6 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: Readme.md

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README

        
# Geohashing

A bare-bones implementation of XKCD's geohashing algorithm.

### lolwut?

[The inspirational comic](http://www.xkcd.com/426/)

[The geohashing community](http://wiki.xkcd.com/geohashing/Main_Page)

### Usage

Just include the Geohashing module in your class. The only *really* useful method is:

	Geohashing::geohash(lat, long)

which returns today's geohashing location in your [graticule](http://wiki.xkcd.com/geohashing/Graticule).

E.g., on 2005-05-26,

	Geohashing::geohash(37.421542, -122.085589) #=> [37.8577132, -122.544543]

### Caveat emptor

Since the module need to be able to look up the opening Dow Jones index, no network connection == no geohash. 

Note also that this module currently lacks:

- a command-line tool

- the ability to find previous geohashes

- [30W time zone support](http://wiki.xkcd.com/geohashing/30W_Time_Zone_Rule)

That being said, pull requests are welcome!