AR: Easy location (lat/long) handling + in_radius + find on a given map section
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Geo-spatial extension for Mongoid 2
🗺️ Spherical Mercator math in Ruby
Time zone lookup by latitude/longitude using nearest neighbor implementation
Easier latitudes and longitudes on forms (and validation in model) for Rails 2.3.
Simple yet useful Geo Coordinates class for Ruby
Geo calculations in ruby and javascript
Beautiful map generation
Official Geokit plugin for Rails/ActiveRecord. Provides location-based goodness for your Rails ap...
Easy way to edit zoom, longitude and latitude
Geokit for Rails 3 using Mongoid
Location from IP, geocoding, distance calculation, and geo/map utilities
Calculates the geo distance between two locations using longitude and latitude, using Haversine, ...
A GeoPoint encapsulates latitude, longitude and various geo calculations relative to itself
Complete Ruby geocoding solution.
free open source public map georeferencer, georectifier and warper