Tag: geo
Ruby gem geoip and Rack::GeoIPCountry
by Samson on Feb.25, 2010, under Ruby, Technique
wikipedia上对于geolocation的解释是这样的：
Geolocation is the identification of the real-world geographic location of an Internet-connected computer, mobile device, website visitor or other.
检测的方法貌似也有很多：
Geolocation can be performed by associating a geographic location with the Internet Protocol (IP) address, MAC address, RFID, hardware embedded article/production number, embedded software number (such as UUID, Exif/IPTC/XMP or modern steganography), invoice, Wi-Fi connection location, or device GPS coordinates, or other, perhaps self-disclosed information.
（班门弄斧一下先，呵呵呵呵）
ruby里面取到geo信息的一个相对方便的办法是使用rubygem geoip，虽然本质上还是使用maxmind的data，但是免去了编译和安装其c library的麻烦。
(continue reading…)
