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将坐标对与国家/地区匹配（大比例尺）

[英]Matching Coordinate Pairs to Countries (Large Scale)

 原文  2015-02-28 21:26:59  4   1    csv/ match/ coordinates/ country/ large-data

问题描述

我以前看过有关基于经度和纬度坐标查找国家/地区的讨论，这些讨论导致了两个有用的链接。

http://www.worldatlas.com/aatlas/latitude_and_longitude_finder.htm

https://developers.google.com/maps/documentation/javascript/examples/geocoding-reverse

是两个例子。

我的问题是我有一长串的坐标对（准确地说是26400对），显然没有时间分别搜索每个坐标对。 有没有一种方法可以自动搜索存储在.csv文件中的所有坐标对？

1 个解决方案

解决方案1
 0  2015-03-02 09:50:18

假设您的CSV如下所示： 

51.23,2.34
52.5,-1.8
54.88,-3.2

您可以逐行阅读它，并让Google为此对它进行地理编码 

while IFS="," read lat lon
do

   country=$(curl "http://maps.googleapis.com/maps/api/geocode/xml?latlng=$lat,$lon&sensor=false" | xmlstarlet sel -t -v '/GeocodeResponse/result/address_component[type="country"]/long_name' | head -1)
   echo $lat,$lon,$country
   sleep 10
done < file.csv

一天可以进行多少次查询（请检查并观察）是有限制的，所以这就是为什么我要在其中添加sleep 。 另外，您可以将curl请求中的xml字样更改为json然后将得到JSON格式的结果以进行解析。

如果要进行测试，只需将参数粘贴即可curl到浏览器地址栏中而无需使用双引号，那么您将看到返回的内容： 

<?xml version="1.0" encoding="UTF-8"?>
<GeocodeResponse>
 <status>OK</status>
 <result>
  <type>route</type>
  <formatted_address>A303, Salisbury, Wiltshire SP4 7DE, UK</formatted_address>
  <address_component>
   <long_name>A303</long_name>
   <short_name>A303</short_name>
   <type>route</type>
  </address_component>
  <address_component>
   <long_name>Salisbury</long_name>
   <short_name>Salisbury</short_name>
   <type>postal_town</type>
  </address_component>
  <address_component>
   <long_name>Wiltshire</long_name>
   <short_name>Wiltshire</short_name>
   <type>administrative_area_level_2</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>                <----- Here it is!
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>SP4 7DE</long_name>
   <short_name>SP4 7DE</short_name>
   <type>postal_code</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.1771403</lat>
    <lng>-1.8236094</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>51.1757619</lat>
     <lng>-1.8272403</lng>
    </southwest>
    <northeast>
     <lat>51.1784599</lat>
     <lng>-1.8199612</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>51.1766085</lat>
     <lng>-1.8272403</lng>
    </southwest>
    <northeast>
     <lat>51.1776133</lat>
     <lng>-1.8199612</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJcWNIljzmc0gROJ_DtvMZDew</place_id>
 </result>
 <result>
  <type>postal_code</type>
  <formatted_address>Salisbury, Wiltshire SP4 7DE, UK</formatted_address>
  <address_component>
   <long_name>SP4 7DE</long_name>
   <short_name>SP4 7DE</short_name>
   <type>postal_code</type>
  </address_component>
  <address_component>
   <long_name>Salisbury</long_name>
   <short_name>Salisbury</short_name>
   <type>postal_town</type>
  </address_component>
  <address_component>
   <long_name>Wiltshire</long_name>
   <short_name>Wiltshire</short_name>
   <type>administrative_area_level_2</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.1802192</lat>
    <lng>-1.8270873</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>51.1658495</lat>
     <lng>-1.8606635</lng>
    </southwest>
    <northeast>
     <lat>51.1865446</lat>
     <lng>-1.8147963</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>51.1658495</lat>
     <lng>-1.8606635</lng>
    </southwest>
    <northeast>
     <lat>51.1865446</lat>
     <lng>-1.8147963</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJ58eYzzvmc0gR-x4igRCCDgI</place_id>
 </result>
 <result>
  <type>administrative_area_level_4</type>
  <type>political</type>
  <formatted_address>Amesbury, Wiltshire, UK</formatted_address>
  <address_component>
   <long_name>Amesbury</long_name>
   <short_name>Amesbury</short_name>
   <type>administrative_area_level_4</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>Wiltshire</long_name>
   <short_name>Wiltshire</short_name>
   <type>administrative_area_level_2</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>England</long_name>
   <short_name>England</short_name>
   <type>administrative_area_level_1</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.1749580</lat>
    <lng>-1.7790983</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>51.1494527</lat>
     <lng>-1.8535583</lng>
    </southwest>
    <northeast>
     <lat>51.1919313</lat>
     <lng>-1.7117001</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>51.1494527</lat>
     <lng>-1.8535583</lng>
    </southwest>
    <northeast>
     <lat>51.1919313</lat>
     <lng>-1.7117001</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJMxey-_nlc0gRfdhQ9YfIO7A</place_id>
 </result>
 <result>
  <type>postal_code_prefix</type>
  <type>postal_code</type>
  <formatted_address>SP4, United Kingdom</formatted_address>
  <address_component>
   <long_name>SP4</long_name>
   <short_name>SP4</short_name>
   <type>postal_code_prefix</type>
   <type>postal_code</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.1870058</lat>
    <lng>-1.7711005</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>51.0708387</lat>
     <lng>-1.8606635</lng>
    </southwest>
    <northeast>
     <lat>51.2759513</lat>
     <lng>-1.6287743</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>51.0708387</lat>
     <lng>-1.8606635</lng>
    </southwest>
    <northeast>
     <lat>51.2759513</lat>
     <lng>-1.6287743</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJ4dSKGIjjc0gRQoURkIFH8Ww</place_id>
 </result>
 <result>
  <type>postal_town</type>
  <formatted_address>Salisbury, UK</formatted_address>
  <address_component>
   <long_name>Salisbury</long_name>
   <short_name>Salisbury</short_name>
   <type>postal_town</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.1232079</lat>
    <lng>-1.8390956</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>50.9187178</lat>
     <lng>-2.2108535</lng>
    </southwest>
    <northeast>
     <lat>51.2759513</lat>
     <lng>-1.5617645</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>50.9187178</lat>
     <lng>-2.2108535</lng>
    </southwest>
    <northeast>
     <lat>51.2759513</lat>
     <lng>-1.5617645</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJy0okEgrCc0gRCVJTyWezH-k</place_id>
 </result>
 <result>
  <type>administrative_area_level_2</type>
  <type>political</type>
  <formatted_address>Wiltshire, UK</formatted_address>
  <address_component>
   <long_name>Wiltshire</long_name>
   <short_name>Wiltshire</short_name>
   <type>administrative_area_level_2</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>England</long_name>
   <short_name>England</short_name>
   <type>administrative_area_level_1</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>51.2462714</lat>
    <lng>-1.9922127</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>50.9449920</lat>
     <lng>-2.3655985</lng>
    </southwest>
    <northeast>
     <lat>51.7031417</lat>
     <lng>-1.4857261</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>50.9449920</lat>
     <lng>-2.3655985</lng>
    </southwest>
    <northeast>
     <lat>51.7031417</lat>
     <lng>-1.4857261</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJKcgiicI3cUgRNJe9kfg0iGQ</place_id>
 </result>
 <result>
  <type>administrative_area_level_1</type>
  <type>political</type>
  <formatted_address>England, UK</formatted_address>
  <address_component>
   <long_name>England</long_name>
   <short_name>England</short_name>
   <type>administrative_area_level_1</type>
   <type>political</type>
  </address_component>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>52.3555177</lat>
    <lng>-1.1743197</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>49.9588004</lat>
     <lng>-5.7169817</lng>
    </southwest>
    <northeast>
     <lat>55.8111127</lat>
     <lng>1.7629159</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>49.8647517</lat>
     <lng>-6.4177822</lng>
    </southwest>
    <northeast>
     <lat>55.8111127</lat>
     <lng>1.7629159</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJ39UebIqp0EcRqI4tMyWV4fQ</place_id>
 </result>
 <result>
  <type>country</type>
  <type>political</type>
  <formatted_address>United Kingdom</formatted_address>
  <address_component>
   <long_name>United Kingdom</long_name>
   <short_name>GB</short_name>
   <type>country</type>
   <type>political</type>
  </address_component>
  <geometry>
   <location>
    <lat>54.9713902</lat>
    <lng>-2.7427767</lng>
   </location>
   <location_type>APPROXIMATE</location_type>
   <viewport>
    <southwest>
     <lat>49.8669688</lat>
     <lng>-8.6493572</lng>
    </southwest>
    <northeast>
     <lat>60.8565530</lat>
     <lng>1.7627096</lng>
    </northeast>
   </viewport>
   <bounds>
    <southwest>
     <lat>34.5625145</lat>
     <lng>-8.6493572</lng>
    </southwest>
    <northeast>
     <lat>60.9023960</lat>
     <lng>33.9165550</lng>
    </northeast>
   </bounds>
  </geometry>
  <place_id>ChIJqZHHQhE7WgIReiWIMkOg-MQ</place_id>
 </result>
</GeocodeResponse>

还有其他具有不同功能和限制的地理编码服务可供使用-想到了地名。

暂无
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