在英国，如何找到给定GPS坐标的地址？

对不起，这不是一个非常明确的问题，我正在考虑一个产品的想法，所以需要知道什么是可能的...在英国，如何找到给定GPS坐标的地址？

说我站在房子的门前， GSP从智能手机坐标，我如何找到我所站的地址？

对于这个GPS是否足够好？

我需要使用多少数据/服务成本？

我还有什么其他问题应该问到这个问题？

来源

2010-04-08 Ian Ringrose

又见http://www.tomanthony.co.uk/blog/geocoding-uk-postcodes-with-google-map-api/ – 2010-04-08 18:05:28

的可能重复http://stackoverflow.com /问题/ 2621844 /取纬度，经度由扯皮，邮政编码到地图，谷歌-COM-使用的JavaScript – 2010-04-12 20:26:57

GPS仅限于返回您的位置的经度和纬度坐标。

要将这些坐标解析为地址，您需要使用外部数据源。将地理坐标转换为地址的行为通常被称为reverse geocoding。

有一些免费的反向地理编码服务，如that offered within the Google Maps API。但是，请确保您在使用此类服务之前阅读并理解Terms of Use。

简单CSV：

http://maps.google.com/maps/geo?q=40.756041,-73.986939&output=csv&sensor=false

举个例子，你可以使用下面的HTTP请求都与谷歌地图API反向地理编码

200,8,"601-699 7th Ave, New York, NY 10036, USA"

更复杂的XML：

http://maps.google.com/maps/geo?q=40.756041,-73.986939&output=xml&sensor=false

<kml xmlns="http://earth.google.com/kml/2.0"><Response> 
    <name>40.756041,-73.986939</name> 
    <Status> 
    <code>200</code> 
    <request>geocode</request> 
    </Status> 
    <Placemark id="p1"> 
    <address>601-699 7th Ave, New York, NY 10036, USA</address> 
    <AddressDetails Accuracy="8" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><Country><CountryNameCode>US</CountryNameCode><CountryName>USA</CountryName><AdministrativeArea><AdministrativeAreaName>NY</AdministrativeAreaName><SubAdministrativeArea><SubAdministrativeAreaName>New York</SubAdministrativeAreaName><Locality><LocalityName>New York</LocalityName><DependentLocality><DependentLocalityName>Manhattan</DependentLocalityName><Thoroughfare><ThoroughfareName>601-699 7th Ave</ThoroughfareName></Thoroughfare><PostalCode><PostalCodeNumber>10036</PostalCodeNumber></PostalCode></DependentLocality></Locality></SubAdministrativeArea></AdministrativeArea></Country></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7595131" south="40.7532178" east="-73.9835667" west="-73.9898620" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9869192,40.7560331,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p2"> 
    <address>Times Sq - 42nd St Station, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>Times Sq - 42nd St Station</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7591946" south="40.7528994" east="-73.9838014" west="-73.9900966" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9869490,40.7560470,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p3"> 
    <address>Times Square - 42nd Street</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>Times Square - 42nd Street</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7591476" south="40.7528524" east="-73.9838524" west="-73.9901476" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9870000,40.7560000,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p4"> 
    <address>W 42 St - 7 Av, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>W 42 St - 7 Av</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7591446" south="40.7528494" east="-73.9839964" west="-73.9902916" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9871440,40.7559970,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p5"> 
    <address>New Amsterdam Theatre, New York, NY 10036, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><Country><CountryNameCode>US</CountryNameCode><CountryName>USA</CountryName><AdministrativeArea><AdministrativeAreaName>NY</AdministrativeAreaName><Locality><LocalityName>New York</LocalityName><PostalCode><PostalCodeNumber>10036</PostalCodeNumber></PostalCode><AddressLine>New Amsterdam Theatre</AddressLine></Locality></AdministrativeArea></Country></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7593416" south="40.7530464" east="-73.9842484" west="-73.9905436" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9873960,40.7561940,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p6"> 
    <address>W 42 St - 7 Av, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>W 42 St - 7 Av</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7594606" south="40.7531654" east="-73.9842484" west="-73.9905436" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9873960,40.7563130,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p7"> 
    <address>Times Sq - 42nd St Station, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>Times Sq - 42nd St Station</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7589406" south="40.7526454" east="-73.9832194" west="-73.9895146" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9863670,40.7557930,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p8"> 
    <address>W 42 St - Broadway, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>W 42 St - Broadway</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7588236" south="40.7525284" east="-73.9831654" west="-73.9894606" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9863130,40.7556760,0</coordinates></Point> 
    </Placemark> 
    <Placemark id="p9"> 
    <address>7 Av - W 41 St, New York, NY 10116, USA</address> 
    <AddressDetails Accuracy="9" xmlns="urn:oasis:names:tc:ciq:xsdschema:xAL:2.0"><AddressLine>7 Av - W 41 St</AddressLine></AddressDetails> 
    <ExtendedData> 
     <LatLonBox north="40.7586296" south="40.7523344" east="-73.9843024" west="-73.9905976" /> 
    </ExtendedData> 
    <Point><coordinates>-73.9874500,40.7554820,0</coordinates></Point> 
    </Placemark> 
</Response></kml>

只需使用您的latitude,longitude改变q参数。

请注意，Google Maps API的免费版本每天每个IP地址的请求数限制为15,000。（Google Maps API FAQ）

如果您打算大量使用谷歌的反向地理编码服务，你可能要考虑使用Premier edition of the Google Maps API。

Premier API自动附带“advanced geocoding capabilities with greater volume and speed”，因此标准API的限制应该被新配额所取代。

作为附加说明，根据一个unofficial source（2008年4月），Premier API的开销为每年10,000美元。

来源

2010-04-08 16:18:29