Latitude, Longitude Grabber

问题

What I would like to do is create app where when anyone clicks on the map object and two fields get filled with latitude and longitude at every click. Is there sample code of Google Maps V3 JavaScript API (Geocoding API) somewhere out there that does something like that?

回答1:

You can achieve this with google.maps.event' LatLng property:

Something like this would show how it works. Here is a JSFiddle Demo:

google.maps.event.addListener(map, 'click', function(event){
       alert('Lat: ' + event.latLng.lat() + ' Lng: ' + event.latLng.lng());
});

Where map is your google map object. Yes the example is in V2 i think, and if you would like to create a marker on click you can simply create it within the click callback function.

回答2:

Here is a complete code for version 2 which i had been using for a long time and i have published in the site.

http://vikku.info/programming/google-maps-v2/get-lattitude-longitude-onmouseover-and-onmouseclick-google-map-v2.htm

just click view source code from your browser and copy save the contents. it will work perfectly. only thing is you need to change the map api key.

Here is the code for google map version 3

http://vikku.info/programming/google-maps-v3/get-lattitude-longitude-onclick-and-onmouseover-google-map-v3.htm

回答3:

function onload()
{
 var map= new google.maps.Map(document.getElementById('map'), {
center: new google.maps.LatLng(37.4419, -122.1419),
zoom: 14,
mapTypeId: google.maps.MapTypeId.ROADMAP,
disableDefaultUI: true
});
google.maps.event.addListener(map, 'click', function(event){
       alert('Lat: ' + event.latLng.lat() + ' and Longitude is: ' + event.latLng.lng());

}

After loading code you can write this code to get latitude and longitude of fix points. please try

回答4:

var map = [google map];

google.maps.event.addListener(map, 'click', function (mouseEvent) {
    alert(mouseEvent.latLng.toUrlValue());
});

来源：https://stackoverflow.com/questions/5571641/latitude-longitude-grabber