GeoKitで地図をジオ系を簡単に - iRSSの日記GeoKitなるものを見つけました ジオコーディング、距離計算等を支援してくれる、プラグインのようです。 Geokit is a Rails plugin for building location-based apps. It provides geocoding, location finders, and distance calculation in one cohesive package. If you have any tables with latitude/longitude columns in your database, or if you every wanted to easily query for "all the stores within a 50 mile radius," then GeoKit is for you. 機能概要 Distance c
