The Geokit gem provides the following:
- Distance calculations between two points on the earth. Calculate the distance in miles or KM, with all the trigonometry abstracted away by GeoKit.
- Geocoding from multiple providers. It currently supports Google, Yahoo, Geocoder.us, and Geocoder.ca geocoders, and it provides a uniform response structure from all of them. It also provides a fail-over mechanism, in case your input fails to geocode in one service.
Combine this with gem with the geokit-rails plugin to get location-based finders for your Rails app. Plugins for other web frameworks and ORMs will provide similar functionality.
- none currently
irb> require 'rubygems'
irb> require 'geokit'
irb> a=Geokit::Geocoders::YahooGeocoder.geocode '140 Market St, San Francisco, CA'
irb> a.ll
=> 37.79363,-122.396116
irb> b=Geokit::Geocoders::YahooGeocoder.geocode '789 Geary St, San Francisco, CA'
irb> b.ll
=> 37.786217,-122.41619
irb> a.distance_to(b)
=> 1.21120007413626
irb> a.heading_to(b)
=> 244.959832435678
- gem sources -a http://gems.github.com
- sudo gem install
(The MIT License)
Copyright (c) 2007-2008 Andre Lewis and Bill Eisenhauer
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