Google地图:在下拉菜单中更改地图标记位置 [英] Google Maps : change map marker location on dropdown

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问题描述

我想要根据下拉变化来更改地图标记的位置,我正在做的是我在latdown事件中获取经纬度,并希望将这些坐标传递给我当前的标记,这是我的代码


$ b $

  $(#location)。change(function(){
var addr =($('#location'))。 val());

var geocoder = new google.maps.Geocoder();
geocoder.geocode({'address':addr},function(results,status){
if(status == google.maps.GeocoderStatus.OK){
alert(location:+ results [0] .geometry.location.lat()++ results [0] .geometry。 location.lng());
geoMarker.setMarkerOptions({
duration:duration,
easing:$('#easingOption')。val()
});
$ else {
alert(Something wrong wrong+ status);
}
});
});

HTML:

 < select id =location> 
< option>迪拜< / option>
< option> Sharjah< / option>
< / select>

它提示当前坐标,但我需要知道如何将这些坐标传递到我的标记位置 p>

解决方案

您需要根据地理编码操作的结果设置标记的位置。

  $(#location)。change(function(){
var addr =($('#location')。val());
$ b $ var geocoder = new google.maps.Geocoder();
geocoder.geocode({'address':addr
},function(results,status){
(if status == google.maps.GeocoderStatus.OK){
map.setCenter(results [0] .geometry.location);
geoMarker.setPosition(results [0] .geometry.location) ;
} else {
alert(Something wrong wrong+ status);
}
});
});

概念证明小提琴



程式码片段:

  var geocoder; var map; var geoMarker;函数initialize(){var map = new google.maps.Map(document.getElementById(map_canvas),{center:new google.maps。 LatLng(37.4419,-122.1419),zoom:13,mapTypeId:google.maps.MapTypeId.ROADMAP}); geoMarker = new google.maps.Marker(); geoMarker.setPosition(map.getCenter()); geoMarker.setMap(地图); $(#location)。change(function(){var addr =($('#location')。val()); var geocoder = new google.maps.Geocoder(); geocoder.geocode({'address ':addr},function(results,status){if(status == google.maps.GeocoderStatus.OK){map.setCenter(results [0] .geometry.location); geoMarker.setPosition(results [0] .geometry .location);} else {alert(Something got wrong+ status);}});});} google.maps.event.addDomListener(window,load,initialize);  

html,body,#map_canvas {height:100%;宽度:100%; margin:0px; < script src =https://


I want to change map marker position on basis of dropdown change even,What I'm doing is I get lat,long on dropdown event and want to pass these coordinates to my current marker , this is my code

$("#location").change(function () {
    var addr = ($('#location').val());

    var geocoder = new google.maps.Geocoder();
    geocoder.geocode({ 'address': addr }, function (results, status) {
        if (status == google.maps.GeocoderStatus.OK) {
            alert("location : " + results[0].geometry.location.lat() + " " + results[0].geometry.location.lng());
            geoMarker.setMarkerOptions({
                duration: duration,
                easing: $('#easingOption').val()
            });
        } else {
            alert("Something got wrong " + status);
        }
    });
});

HTML :

<select id="location">
    <option>Dubai</option>
    <option>Sharjah</option>
</select>

It alerts current coordinates but I need to know how do I pass these coordinates to my marker position

解决方案

You need to set the position of the marker based on the results of the geocode operation.

$("#location").change(function() {
  var addr = ($('#location').val());

  var geocoder = new google.maps.Geocoder();
  geocoder.geocode({'address': addr
  }, function(results, status) {
    if (status == google.maps.GeocoderStatus.OK) {
      map.setCenter(results[0].geometry.location);
      geoMarker.setPosition(results[0].geometry.location);
    } else {
      alert("Something got wrong " + status);
    }
  });
});

proof of concept fiddle

code snippet:

var geocoder;
var map;
var geoMarker;

function initialize() {
  var map = new google.maps.Map(
    document.getElementById("map_canvas"), {
      center: new google.maps.LatLng(37.4419, -122.1419),
      zoom: 13,
      mapTypeId: google.maps.MapTypeId.ROADMAP
    });
  geoMarker = new google.maps.Marker();
  geoMarker.setPosition(map.getCenter());
  geoMarker.setMap(map);

  $("#location").change(function() {
    var addr = ($('#location').val());

    var geocoder = new google.maps.Geocoder();
    geocoder.geocode({
      'address': addr
    }, function(results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        map.setCenter(results[0].geometry.location);
        geoMarker.setPosition(results[0].geometry.location);
      } else {
        alert("Something got wrong " + status);
      }
    });
  });

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

html,
body,
#map_canvas {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js"></script>
<select id="location">
  <option>Dubai</option>
  <option>Sharjah</option>
</select>
<div id="map_canvas"></div>

这篇关于Google地图:在下拉菜单中更改地图标记位置的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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