Google地图会对字符串进行地理编码

Question

Google地图会对字符串进行地理编码

use*_*726 6 javascript google-maps geocoding google-maps-api-3

我刚接触谷歌地图api并完成了地理编码示例:

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

我希望能够在我的代码中对字符串进行地理编码,并在该位置放置标记,而不是用户搜索位置.到目前为止我的代码是:

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <title>Geocoding service</title>
    <style>
      html, body, #map-canvas 
      {
        height: 100%;
        margin: 0px;
        padding: 0px
      }
    </style>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
    <script>
   //global variables 
var geocoder;
var map;
var Ireland = "Dublin";

function initialize() 
{
  geocoder = new google.maps.Geocoder();
  var latlng = new google.maps.LatLng(53.3496, -6.3263);
  var mapOptions = 
  {
    zoom: 8,
    center: latlng
  }
  map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
  codeAddress();//call the function
}

function codeAddress() 
{
  var address = document.getElementById("Ireland").value;
  geocoder.geocode( {"Ireland":address}, function(results, status) 
  {
    if (status == google.maps.GeocoderStatus.OK) 
    {
      map.setCenter(results[0].geometry.location);//center the map over the result
      //place a marker at the location
      var marker = new google.maps.Marker(
      {
          map: map,
          position: results[0].geometry.location
      });
    } else {
      alert('Geocode was not successful for the following reason: ' + status);
   }
  });
}

google.maps.event.addDomListener(window, 'load', initialize);

    </script>
  </head>
  <body>
    <div id="map-canvas"></div>
  </body>
</html>

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它可能是一些简单的东西,但正如我所说的谷歌地图和HTML新,并希望任何帮助,所以请不要投票.谢谢

Answer 1

geo*_*zip 12

这将更改codeAddress函数以获取参数并对该参数进行地理编码.如果您将Ireland变量作为参数传递,它将对"都柏林"进行地理编码.

var Ireland = "Dublin";

function initialize() 
{
  geocoder = new google.maps.Geocoder();
  var latlng = new google.maps.LatLng(53.3496, -6.3263);
  var mapOptions = 
  {
    zoom: 8,
    center: latlng
  }
  map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
  codeAddress(Ireland);//call the function
}

function codeAddress(address) 
{
  geocoder.geocode( {address:address}, function(results, status) 
  {
    if (status == google.maps.GeocoderStatus.OK) 
    {
      map.setCenter(results[0].geometry.location);//center the map over the result
      //place a marker at the location
      var marker = new google.maps.Marker(
      {
          map: map,
          position: results[0].geometry.location
      });
    } else {
      alert('Geocode was not successful for the following reason: ' + status);
   }
  });
}

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Answer 2

Jen*_*ohn 5

试试这个。

 <!doctype html>
    <html lang="en">
    <head>
    <meta charset="utf-8">
    <title>Google Map Address</title>
    <script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
    <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>

    <script type="text/javascript">

            var geocoder = new google.maps.Geocoder();
    var address = "Dublin";

    geocoder.geocode( { 'address': address}, function(results, status) {

      if (status == google.maps.GeocoderStatus.OK) {
        var latitude = results[0].geometry.location.lat();
        var longitude = results[0].geometry.location.lng();


        initialize(latitude,longitude);

                } 

        }); 


    function initialize(latitude,longitude) {
        var latlng = new google.maps.LatLng(latitude,longitude);

        var myOptions = {
          zoom: 14,
          center: latlng,
          mapTypeId: google.maps.MapTypeId.ROADMAP,
          mapTypeControl: false
        };
        var map = new google.maps.Map(document.getElementById("map_canvas"),myOptions);

        var marker = new google.maps.Marker({
          position: latlng, 
          map: map, 
            title:"location : Dublin"
        }); 
      }


</script>

    </head>
    <body>

    <h2>Google Map Address</h2>

    <div id="map_canvas" style="width:710px; height:300px"></div>   

            </body>
    </html>

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