如何在Google地图API中查找最近的城市 [英] How to find the nearest cities in Google map API

问题描述

我想找到澳大利亚哪个城市最近的城市，我给了示例在此查看示例。我尝试过使用Google API，但没有用。我该如何实现这一目标。你可以帮我吗？
$ b $ p代码是

  var map = new google.maps.Map（document.getElementById（map_canvas），myOptions）; 
 
 var request = {
位置：fenway，
半径：500，
类型：['store'] 
}; 
 var service = new google.maps.places.PlacesService（map）; 
 service.search（request，callback）; 
 
函数回调（结果，状态）{
 if（status == google.maps.places.PlacesServiceStatus.OK）{
 for（var i = 0; i< results.length; i ++）{
 var lat = results [i] .geometry.location.lat（）; 
 var geocoder = new google.maps.Geocoder（）; 
 var lng = results [i] .geometry.location.lng（）; 
 var latlng = new google.maps.LatLng（lat，lng）; 
 geocoder.geocode（{
'latLng'：latlng 
}，function（result，status1）{
 if（status == google.maps.GeocoderStatus.OK）{
 if（result [1]）{
 console.log（result [1]）; 
} 
} else {
 alert（Geocoder failed due to： + status1）; 
} 
}）; 
 
 
 
 
 $ / code> 

我想靠近不喜欢商店的城市等等。我必须在澳大利亚找到郊区。我给出的郊区附近有什么？


解决方案

我撰写了一段代码段，通过结合 Google地图地理编码API 和 GeoNames.org API （除了 file_get_contents cURL 请求）。

/ *
*根据城市名称和半径以KM
* /

获取城市//将地理编码对象作为来自Google地图地理编码API的数组获取
$ geocodeObject = json_decode（file_get_contents（'https://maps.googleapis.com/maps/api/geocode/json?address= {CITY NAME}，{COUNTRY CODE}'），true）;

//从地理编码对象获取经度和纬度
$ latitude = $ geocodeObject ['results'] [0] ['geometry'] ['location'] ['lat'];
$ longitude = $ geocodeObject ['results'] [0] ['geometry'] ['location'] ['lng'];

//设置请求选项
$ responseStyle ='short'; //响应的长度
$ citySize ='cities15000'; //城市必须有
$ radius = 30的公民的最小数量; //半径KM
$ maxRows = 30; //获取的最大行数
$ username ='{YOUR USERNAME}'; // GeoNames帐户的用户名

//根据GeoNames API中的数组获取邻近城市$ b $ nearbyCities = json_decode（file_get_contents（'http：//api.geonames。 ？组织/ findNearbyPlaceNameJSON LAT = $纬度。 '和; LNG =' $经度。 '和;风格=' $ responseStyle。 '和;城市=' $ citySize。 '和;半径=' $半径'& maxRows ='。$ maxRows。'& username ='。$ username，true））;

//在附近城市获取城市详细信息
foreach（$ nearbyCities-> geonames as $ cityDetails）
{
//在附近城市做些事

$ / code>

请谨慎处理您的请求数量，因为API的数量有限

有关API访问的更多信息，请访问以下网址： b $ b

https://developers.google.com/maps/documentation / geocoding / intro＃GeocodingResponses

http://www.geonames.org/export/web-services.html

I want to find the nearest cities in the Australia which city i gave for example In this look out the examples. I tried wit h Google API but no use .How can i achieve like this. Could you help me?

code is

var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);

     var request = {
         location: fenway,
         radius: 500,
         types: ['store']
     };
     var service = new google.maps.places.PlacesService(map);
     service.search(request, callback);

     function callback(results, status) {
         if (status == google.maps.places.PlacesServiceStatus.OK) {
             for (var i = 0; i < results.length; i++) {
                 var lat = results[i].geometry.location.lat();
                 var geocoder = new google.maps.Geocoder();
                 var lng = results[i].geometry.location.lng();
                 var latlng = new google.maps.LatLng(lat, lng);
                 geocoder.geocode({
                     'latLng': latlng
                 }, function (result, status1) {
                     if (status == google.maps.GeocoderStatus.OK) {
                         if (result[1]) {
                             console.log(result[1]);
                         }
                     } else {
                         alert("Geocoder failed due to: " + status1);
                     }
                 });

             }
         }
     }

I want near cities not like the stores etc. I have to find the suburbs in the Australia what are near to the suburb which i given

解决方案

I've written a code snippet that allows you to retrieve all nearby cities by combining the Google Maps Geocoding API and GeoNames.org API (besides a file_get_contents your could also do a cURL request).

/*
 * Get cities based on city name and radius in KM
 */

// get geocode object as array from The Google Maps Geocoding API
$geocodeObject = json_decode(file_get_contents('https://maps.googleapis.com/maps/api/geocode/json?address={CITY NAME},{COUNTRY CODE}'), true);

// get latitude and longitude from geocode object
$latitude = $geocodeObject['results'][0]['geometry']['location']['lat'];
$longitude = $geocodeObject['results'][0]['geometry']['location']['lng'];

// set request options
$responseStyle = 'short'; // the length of the response
$citySize = 'cities15000'; // the minimal number of citizens a city must have
$radius = 30; // the radius in KM
$maxRows = 30; // the maximum number of rows to retrieve
$username = '{YOUR USERNAME}'; // the username of your GeoNames account

// get nearby cities based on range as array from The GeoNames API
$nearbyCities = json_decode(file_get_contents('http://api.geonames.org/findNearbyPlaceNameJSON?lat='.$latitude.'&lng='.$longitude.'&style='.$responseStyle.'&cities='.$citySize.'&radius='.$radius.'&maxRows='.$maxRows.'&username='.$username, true));

// foreach nearby city get city details
foreach($nearbyCities->geonames as $cityDetails)
{
    // do something per nearby city
}

be carefull with your requests amount because the API's are limited

For more information about the API's visit the following url's:

• https://developers.google.com/maps/documentation/geocoding/intro#GeocodingResponses
• http://www.geonames.org/export/web-services.html

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