Google maps API v3: Latitude and longitude in a form on user click
Somehow it’s wery hard to find clickable and dragable maker that can show lat and lang on the web so i decidet to create my own.
In this script and demo page you can see how simple is to get latitude and longitude from user when he click or drag a marker. Try click on map more times on different places and you will see that the first marker is deleted and new one created and the map is centered on marker. That makes this script so special. You can integrate this script so user can point on places they visited or they own etc.
Before javascript don’t forget to input:
<link href="http://code.google.com/apis/maps/documentation/javascript/examples/default.css" rel="stylesheet" type="text/css" /> <script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
This is javascript google maps API v3
var map;
function initialize() {
var myLatlng = new google.maps.LatLng(43.635818,16.237793);
var myOptions = {
zoom: 7,
center: myLatlng,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var infowindow = new google.maps.InfoWindow({
content: "Drag marker to position <br /> or click to place"
});
infowindow.open(map);
google.maps.event.addListener(map, 'click', function(event) {
var clickedLocation = new google.maps.LatLng(event.latLng);
var marker = new google.maps.Marker({
position: event.latLng,
title:"Marker position",
draggable: true,
map: map
});
infowindow.open(map,marker);
map.setCenter(event.latLng);
google.maps.event.addListener(map, 'click', function(event) {
marker.setMap(null);
});
google.maps.event.addListener(marker, 'dragend', function(event) {
var point = event.latLng;
var lat = point.lat();
var lng = point.lng();
document.getElementById("frmLat").value = lat;
document.getElementById("frmLon").value = lng;
});
var point = event.latLng;
var lat = point.lat();
var lng = point.lng();
document.getElementById("frmLat").value = lat;
document.getElementById("frmLon").value = lng;
});
}
And this is HTML part that is connected with javascript Goole maps API
<body onLoad="initialize()">
<div id="map_canvas" style="width: 500px; height: 400px"></div>
Lat: <input type="text" name="lat" id="frmLat" > <br />
Lng: <input type="text" name="lng" id="frmLon" > <br />
</body>
You can download script or see demo page below. If something stuck feel free to comment.
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