The API documentation gave me hopes last night with "bindInfoWindowHtml".
But it doesn't seem to replace the default infoWindow, even when you provide your own class etc.
I have tried using other ideas like the labeledmarker. But it doesn't support draggable markers. Hence can't use it in my application.
Here is the sample code which shows the info. window inside, the original bubble.
Isn't there a way to override that window as well !
`
<style type="text/css">
.infoWindowCustomClass
{
width: 500px;
height: 500px;
background-color: #CAEE96;
color: #666;
}
</style>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>Google Maps JavaScript API Example</title>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false&key="" type="text/javascript"></script>
<script type="text/javascript">
function load() {
if (GBrowserIsCompatible())
{
// Create our "tiny" marker icon
var blueIcon = new GIcon(G_DEFAULT_ICON);
blueIcon.image = "http://www.google.com/intl/en_us/mapfiles/ms/micons/blue-dot.png";
// Set up our GMarkerOptions object
markerOptions = { icon:blueIcon };
var map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(33.968064,-83.377047), 13);
markerOptions.title = "fart";
var point = new GLatLng(33.968064,-83.377047);
var marker = new GMarker(point);
var tempName = document.getElementById("infoWindowCustom");
marker.bindInfoWindowHtml(tempName);
map.addOverlay(marker);
}
}
</script>`
And here is the DIV -
<DIV id="infoWindowCustom" name="infoWindowCustom" class="infoWindowCustomClass">
Name : <TEXTAREA NAME="nameID" ID="nameID" ROWS="2" COLS="25"></TEXTAREA>
Comments : <TEXTAREA NAME="commentsID" ID="commentsID" ROWS="4" COLS="25"></TEXTAREA>
</DIV>
Solved it as below -
Instead of binding it as above, I take the lang/lats and launch a div at that place.
That seems to work just fine.
Related
I have created a simple html using the draggable marker example from here maps. I have adapted it to support IE 11 by adding reference to legacy js, meta tag and using P2D engine in map options. Also added two url parameters for coordinates. It works perfectly in IE11 and it loads and shows pan and zoom buttons in ms-access webbrowser but it keeps static, it's not draggable, but pan and zoom works.
The curious thing is that if I navigate to wego.here.com in the same webbrowser control then the map is draggable. So they're doing something else in the here maps main page that I'm not doing in my script.
I have also tried using Microsoft Web Browser from the activex controls list in access.
I need it to be draggable so I can pick the coordinates after the user changes the marker position.
This is my script:
<html>
<head>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
<title>Draggable Marker</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no" />
<link rel="stylesheet" type="text/css" href="https://js.api.here.com/v3/3.1/mapsjs-ui.css" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-core.js" type="text/javascript" charset="utf-8"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-core-legacy.js" type="text/javascript" charset="utf-8"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-service.js" type="text/javascript" charset="utf-8"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-service-legacy.js" type="text/javascript" charset="utf-8"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-ui.js" type="text/javascript" charset="utf-8"></script>
<script src="https://js.api.here.com/v3/3.1/mapsjs-mapevents.js" type="text/javascript" charset="utf-8"></script>
<style>
html, body { margin:0px; padding:0px; width: 100%; height: 100%; }
.main { height: 100%; }
</style>
</head>
<body id="markers-on-the-map">
<div class="main" style="width:100%" id="map"></div>
<input type="hidden" id="long" name="long">
<input type="hidden" id="lat" name="lat">
<script>
function addDraggableMarker(map, behavior){
var marker = new H.map.Marker({lat:latitud, lng:longitud}, {volatility: true});
// Ensure that the marker can receive drag events
marker.draggable = true;
map.addObject(marker);
// disable the default draggability of the underlying map
// and calculate the offset between mouse and target's position
// when starting to drag a marker object:
map.addEventListener('dragstart', function(ev) {
var target = ev.target,
pointer = ev.currentPointer;
if (target instanceof H.map.Marker) {
var targetPosition = map.geoToScreen(target.getGeometry());
target['offset'] = new H.math.Point(pointer.viewportX - targetPosition.x, pointer.viewportY - targetPosition.y);
behavior.disable();
}
}, false);
// re-enable the default draggability of the underlying map
// when dragging has completed
map.addEventListener('dragend', function(ev) {
var target = ev.target;
if (target instanceof H.map.Marker) {
$('#long').val(ev.target.b.lng);
$('#lat').val(ev.target.b.lat);
behavior.enable();
}
}, false);
// Listen to the drag event and move the position of the marker
// as necessary
map.addEventListener('drag', function(ev) {
var target = ev.target,
pointer = ev.currentPointer;
if (target instanceof H.map.Marker) {
target.setGeometry(map.screenToGeo(pointer.viewportX - target['offset'].x, pointer.viewportY - target['offset'].y));
}
}, false);
}
/**
* Boilerplate map initialization code starts below:
*/
//Step 1: initialize communication with the platform
// In your own code, replace variable window.apikey with your own apikey
var platform = new H.service.Platform({
apikey: '?????????????????????????????????'
});
var defaultLayers = platform.createDefaultLayers();
//url parameters
var query_string = {};
var query = window.location.search.substring(1);
var vars = query.split("&");
for (var i=0;i<vars.length;i++) {
var pair = vars[i].split("=");
if (typeof query_string[pair[0]] === "undefined") {
query_string[pair[0]] = decodeURIComponent(pair[1]);
} else if (typeof query_string[pair[0]] === "string") {
var arr = [ query_string[pair[0]],decodeURIComponent(pair[1]) ];
query_string[pair[0]] = arr;
} else {
query_string[pair[0]].push(decodeURIComponent(pair[1]));
}
}
var latitud=query_string.lat;
var longitud=query_string.long;
//Step 2: initialize a map - this map is centered over Boston
var map = new H.Map(document.getElementById('map'),
defaultLayers.raster.normal.map, {
center: {lat:latitud, lng:longitud},
engineType: H.map.render.RenderEngine.EngineType.P2D,
zoom: 12,
pixelRatio: window.devicePixelRatio || 1
});
// add a resize listener to make sure that the map occupies the whole container
//window.addEventListener('resize', () => map.getViewPort().resize());
window.addEventListener('resize', function () {map.getViewPort().resize(); });
//Step 3: make the map interactive
// MapEvents enables the event system
// Behavior implements default interactions for pan/zoom (also on mobile touch environments)
//var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));
// Step 4: Create the default UI:
var ui = H.ui.UI.createDefault(map, defaultLayers, 'en-US');
// Add the click event listener.
addDraggableMarker(map, behavior);
</script>
</body>
</html>```
Check please on this static page
: your code works for my IE11
I'm trying to print a specific zone on an Arcgis maps with the JS API (not the extend that is displayed).
I didn't find any method or option to do this so I tried to change the extend and then print the map :
var extent = new esri.geometry.Extent(
-620526.0922336339,
5993991.149960931,
108988.90572005256,
6293624.300838808,
myMap.spatialReference
);
myMap.setExtent(extent, true).then(function() {
console.log('setExtend is finished');
var template = new esri.tasks.PrintTemplate();
template.exportOptions = {
width : 500,
height : 500
};
template.format = 'jpg';
template.layout = 'MAP_ONLY';
var params = new esri.tasks.PrintParameters();
params.map = myMap;
params.template = template;
var printTask = new esri.tasks.PrintTask(urlToThePrintServer);
printTask.execute(params);
});
Since setExtent is asynchonous and return a defered I have to use the 'then' method.
I can see the map moving but the defered doesn't seem to works ... (I don't see the console.log()).
is there another way to print a specific extend of a map ?
if not why is the 'then' method never called ?
(I'm using the 3.12 JS API)
Your code looks good to me, though obviously you didn't post all your JavaScript or any of your HTML. Maybe you're not requiring the modules you need. Or maybe your code is trying to run before the map is loaded, though that's unlikely because as you say, the map does move. Or maybe something else is wrong.
I put a full working example at http://jsfiddle.net/06jtccx0/ . Hopefully you can compare that to what you're doing and figure out what is wrong with your code. Here's the same code for your convenience:
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
<title>Simple Map</title>
<link rel="stylesheet" href="http://js.arcgis.com/3.13/esri/css/esri.css">
<style>
html, body, #map {
height: 100%;
width: 100%;
margin: 0;
padding: 0;
}
body {
background-color: #FFF;
overflow: hidden;
font-family: "Trebuchet MS";
}
</style>
<script src="http://js.arcgis.com/3.13/"></script>
<script>
var myMap;
var urlToThePrintServer = "http://sampleserver6.arcgisonline.com/arcgis/rest/services/Utilities/PrintingTools/GPServer/Export%20Web%20Map%20Task";
require(["esri/map", "dojo/domReady!"], function(Map) {
myMap = new Map("map", {
basemap: "topo", //For full list of pre-defined basemaps, navigate to http://arcg.is/1JVo6Wd
center: [-122.45, 37.75], // longitude, latitude
zoom: 13
});
myMap.on("load", function(map) {
var extent = new esri.geometry.Extent(
-620526.0922336339,
5993991.149960931,
108988.90572005256,
6293624.300838808,
myMap.spatialReference
);
myMap.setExtent(extent, true).then(function() {
console.log('setExtend is finished');
require([
"esri/tasks/PrintTemplate",
"esri/tasks/PrintParameters",
"esri/tasks/PrintTask"
], function(
PrintTemplate,
PrintParameters,
PrintTask
) {
var template = new PrintTemplate();
template.exportOptions = {
width : 500,
height : 500
};
template.format = 'jpg';
template.layout = 'MAP_ONLY';
var params = new PrintParameters();
params.map = myMap;
params.template = template;
var printTask = new PrintTask(urlToThePrintServer);
printTask.execute(params, function(response) {
console.log("The printed document is at " + response.url);
window.open(response.url);
});
});
});
});
});
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>
I am tryign to figure out MVCArray() in google maps v3. I'm using code written by GeoJason as an example. I attached a click event to the markers to get its LatLng postion. It works well but I need to update the MVCArray on the new postion if a marker is dragged to a new location. This part has me stumped.. Anyone know how to do this or can point me to a good resource which explains using MVCArray's? (besides coode docs, its not designed for newbies.. lol)
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=iso-8859-1" />
<title>GeoJason - Line Length and Polygon Area with Google Maps API v3 Demo</title>
<meta name="keywords" content="" />
<meta name="description" content="Demo of how to get Line Length and Polygon Area with Google Maps API v3" />
<link rel="stylesheet" type="text/css" href="style/default.css" />
<!-- Script -->
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=true"></script>
<script type="text/javascript" src="js/jquery/jquery-1.4.2.js"></script>
<script type="text/javascript">
var map;
var markerImageDefault = new google.maps.MarkerImage('images/markers/measure-vertex.png',null, null, new google.maps.Point(5,5));
var markerImageHover = new google.maps.MarkerImage('images/markers/measure-vertex-hover.png',null, null, new google.maps.Point(8,8));
var measure = {
ll:new google.maps.MVCArray(),
markers:[],
line:null,
poly:null
};
function Init(){
map = new google.maps.Map(document.getElementById('map-canvas'), {
zoom: 15,
center: new google.maps.LatLng(34.96762, -80.47372),
mapTypeId: google.maps.MapTypeId.ROADMAP,
/* Make the map cursor a crosshair so the user thinks they should click something */
draggableCursor:'crosshair'
});
google.maps.event.addListener(map,'click',function(evt){
measureAdd(evt.latLng);
});
}
function measureAdd(ll){
var marker = new google.maps.Marker({
map:map,
position:ll,
draggable:true,
/* Let the user know they can drag the markers to change shape */
title:'Drag me to change the polygon\'s shape',
icon: markerImageDefault
});
var count = measure.ll.push(ll);
var llIndex = count-1;
if (count>2) /* We've got atleast 3 points, we can measure area */
measureCalc();
/* when dragging stops, and there are more than 2 points in our MVCArray, recalculate length and area measurements */
google.maps.event.addListener(marker,'dragend',function(evt){
if (measure.ll.getLength()>2)
measureCalc();
});
/* when the user 'mouseover's a marker change the image so they know something is different (it's draggable) */
google.maps.event.addListener(marker,'mouseover',function(evt){
marker.setIcon(markerImageHover);
});
google.maps.event.addListener(marker,'mouseout',function(evt){
marker.setIcon(markerImageDefault);
});
// This will allow us to click on the first element to close the polygon
google.maps.event.addListener(marker,'click',function(evt){
//alert(ll + " : " + measure.markers[0].position);
console.log(ll.LatLng);
if(ll == measure.markers[0].position) // Only for the first item
{
alert("You clicked!");
}
});
/* when we drag a marker it resets its respective LatLng value in an MVCArray. Since we're changing a value in an MVCArray, any lines or polygons on the map that reference this MVCArray also change shape ... Perfect! */
google.maps.event.addListener(marker,'drag',function(evt){
measure.ll.setAt(llIndex,evt.latLng);
});
measure.markers.push(marker);
/* find out of the user placed a marker at the end of the polygon. */
if (measure.ll.getLength()>1){
/* We've got 2 points, we can draw a line now */
if (!measure.line){
measure.line = new google.maps.Polyline({
map:map,
clickable:false,
strokeColor:'#FF0000',
strokeOpacity:0.5,
strokeWeight:3,
path:measure.ll
});
}
if (measure.ll.getLength()>2){
/* We've got 3 points, we can draw a polygon now */
if (!measure.poly){
measure.poly = new google.maps.Polygon({
clickable:false,
map:map,
fillOpacity:0.25,
strokeOpacity:0,
paths:measure.ll
});
}
}
}
}
function measureReset(){
/* Remove Polygon */
if (measure.poly) {
measure.poly.setMap(null);
measure.poly = null;
}
/* Remove Line */
if (measure.line) {
measure.line.setMap(null);
measure.line = null;
}
/* remove all LatLngs from the MVCArray */
while (measure.ll.getLength()>0) measure.ll.pop();
/* remove all markers */
for (i=0;i<measure.markers.length;i++){
measure.markers[i].setMap(null);
}
$('#measure span').text('0');
}
function measureCalc(){
var points='';
measure.ll.forEach(function(latLng,ind){
/* build a string of points in (x,y|x,y|x,y|x,y) format */
points+=latLng.lng()+','+latLng.lat()+'|';
});
points=points.slice(0,points.length-1);
/* send a getJSON request to our webserver to get length and area measurements */
$.getJSON('http://api.geojason.info/v1/ws_geo_length_area.php?format=json&in_srid=4326&out_srid=2264&points='+points+'&callback=?',function(data){
if (parseInt(data.total_rows)>0){
/* calculate and inject values in their corresponding "span"s */
//var length = parseFloat(data.rows[0].row.length);
var area = parseFloat(data.rows[0].row.area);
//$('#measure-area-sqft').text(area.toFixed(0));
$('#measure-area-acres').text((area/43560).toFixed(3));
//$('#measure-length-feet').text(length.toFixed(0));
//$('#measure-length-meters').text((length*0.3048).toFixed(1));
}
});
}
</script>
</head>
<body onload="Init();">
<div id="header">Home - Back to Demos</div>
<h2>Line Length and Polygon Area with Google Maps API v3</h2>
<div id="map-canvas"></div>
<div id="content">
<p></p>
<div><input type="button" onclick="measureReset();" value="Clear Measure" /></div>
<div id="measure">
<div>Length: <span id="measure-length-feet">0</span> ft.</div>
<div>Length: <span id="measure-length-meters">0</span> met.</div>
<div>Area: <span id="measure-area-sqft">0</span> ft.²</div>
<div>Area: <span id="measure-area-acres">0</span> ac.</div>
</div>
</div>
</body>
</html>
I guess you need to bind each marker position to a vertex in your polyline (use bindTo method ) - a good example is here
http://gmaps-utility-gis.googlecode.com/svn/trunk/v3test/mvc/poly_bind.html
simple examples here
http://gmaps-samples-v3.googlecode.com/svn/trunk/rectangle-overlay/rectangle-overlay.html
http://gmaps-samples-v3.googlecode.com/svn/trunk/circle-overlay/circle-overlay.html
I am working on location based service. I couldn't find any clear answer related to my following queries and so am asking-
How to enable HTML5 geolocation in our own server? Or is there any central geolocation DB there which will provide location service by default (like DNS)?
I was stunned seeing the accuracy of geolocation in google map (http://html5demos.com/geo) in my laptop (obviously GPS free) which is within ~20M range. What is the technology? How to implement that in our own system?
When I used to search my IP location, it used to show the ISP office in the map which is ~15 KM further as opposed to recent situation where it is showing almost exact location. What might be the reason? could it be because I use my android phone using the same Wireles router and it takes the location from there? Or in HTML5 they started locating specific IP addresses (which seems somewhat unlikely).
You can find a lot of information on how this works and how to use it in your own websites in the excellent Dive Into HTML 5. This book recommends using Modernizr, a simple example of which is provided:
function get_location() {
if (Modernizr.geolocation) {
navigator.geolocation.getCurrentPosition(show_map);
} else {
// no native support; maybe try Gears?
}
}
The primary way it is working on your laptop is by using the known positions of local wireless
access points. This varies a little from browser to browser - firefox has a good explanation here. They use positioning services from Google, which were created by mapping done by Google's Street View cars.
function GetGeolocation() {
navigator.geolocation.getCurrentPosition(GetCoords, GetError);
}
now check the GetCords function
function GetCoords(position){
alert('latitude: '+ position.coords.latitude);
alert('longitude: '+ position.coords.longitude);
alert('accuracy: '+ position.coords.accuracy);
FindmeOnMap(position.coords.latitude, position.coords.longitude);
}
// Check for geolocation support
if (navigator.geolocation) {
// Use method getCurrentPosition to get coordinates
navigator.geolocation.getCurrentPosition(function (position) {
// Access them accordingly
alert(position.coords.latitude + ", " + position.coords.longitude);
});
}
From
http://robertnyman.com/2010/03/15/geolocation-in-web-browsers-to-find-location-google-maps-examples/
It's actually pretty simple. The above example from Dive into HTML is incomplete, as it doesn't show the show_map function, which is a user-created function that actually reads the incoming data and does something with it. Here's a more complete example:
<!DOCTYPE HTML>
<html lang = "en">
<head>
<title>location.html</title>
<meta charset = "UTF-8" />
<script type = "text/javascript">
//<![CDATA[
function getLoc(){
navigator.geolocation.getCurrentPosition(showMap);
} // end getLoc
function showMap(position){
var lat = position.coords.latitude;
var long = position.coords.longitude;
var linkUrl = "http://maps.google.com?q=" + lat + "," + long;
var mapLink = document.getElementById("mapLink");
mapLink.href = linkUrl;
var embedMap = document.getElementById("embedMap");
embedMap.src = linkUrl + "&z=16&output=embed";
} // end showMap
//]]>
</script>
</head>
<body onload = "getLoc()">
<h1>Geolocation Demo</h1>
<p>
<a id = "mapLink"
href = "http://maps.google.com">click for a map</a>
</p>
<iframe id = "embedMap"
width="800"
height="500"
frameborder="0"
scrolling="no"
marginheight="0"
marginwidth="0"
src= "">
</iframe><br />
</body>
</html>
This example (from my upcoming HTML5 book) has a getLoc() function called by the body onload mechanism. This uses the navigator.geolocation.getCurrentPosition() function to request a permission vector. It will pop up a permission dialog, which will be rejected if the user chooses not to share her current position. If the user does play along, the indicated callback function (in my case showMap) will be displayed.
The callback function automatically accepts a special position object as its only parameter. This object has a number of potentially useful attributes, but latitude and longitude are the most helpful. You can use these values to simply print out the current position. You can also concatenate these values into a Google maps URL to get a quick Google map of the current location. I also embedded a Google map into my current page, and changed the URL of the embedded (iframe) map to get immediate feedback.
Hope this helps!
Try This Code
<!DOCTYPE html>
<html>
<head>
<title>Geolocation</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map-canvas {
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<!--
Include the maps javascript with sensor=true because this code is using a
sensor (a GPS locator) to determine the user's location.
See: https://developers.google.com/maps/documentation/javascript/tutorial#Loading_the_Maps_API
-->
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=true"></script>
<script>
// Note: This example requires that you consent to location sharing when
// prompted by your browser. If you see a blank space instead of the map, this
// is probably because you have denied permission for location sharing.
var map;
function initialize() {
var mapOptions = {
zoom: 6
};
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
// Try HTML5 geolocation
if(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var pos = new google.maps.LatLng(position.coords.latitude,
position.coords.longitude);
var infowindow = new google.maps.InfoWindow({
map: map,
position: pos,
content: 'Location found using HTML5.'
});
map.setCenter(pos);
}, function() {
handleNoGeolocation(true);
});
} else {
// Browser doesn't support Geolocation
handleNoGeolocation(false);
}
}
function handleNoGeolocation(errorFlag) {
if (errorFlag) {
var content = 'Error: The Geolocation service failed.';
} else {
var content = 'Error: Your browser doesn\'t support geolocation.';
}
var options = {
map: map,
position: new google.maps.LatLng(60, 105),
content: content
};
var infowindow = new google.maps.InfoWindow(options);
map.setCenter(options.position);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
I'm trying to put a Google map in my page and make it so that when the page loads the map will display exactly the location of the user. In order to do so, I've taken the google maps API code and inserted it into my HTML5 page. At first the browser did ask for permission to share my location but it isn't actually showing this location on the map; I've tried with two or more combinations of functions but it is still not working.... please, I need help! If anyone can tell me what is wrong with the code please do:
<html lang="en" manifest="halma.manifest">
<head>
<meta charset="utf-8">
<title>helmas</title>
<link rel="stylesheet" type="text/css" href="css2.css">
<script src="jquery-1.4.2.min.js" type="text/javascript"></script>
<script src="http://maps.google.com/maps?file=api&v=2&sensor=false&key=ABQIAAAAycdS3aS7dItIegOaJzT2RBT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSiGkO1l1KdZvNzo-8b-o7M21o4UA"></script>
<!--[if IE]>
<script src="excanvas.js"></script>
<![endif]-->
</head>
<<body onload="loadMap()" onunload="GUnload()">
<article>
<div id="map" style="width:100%;height:800px;"></div>
<script>
if (navigator.geolocation) {
// try to get the users location
}
if (navigator.geolocation) {
var timeoutVal = 10 * 1000 * 1000;
navigator.geolocation.watchPosition(showPositionOnMap, errorMessage,
{ enableHighAccuracy: true, timeout: timeoutVal, maximumAge: 0 });
}
else {
alert("Geolocation is not supported by this browser");
}
var map = null;
function loadMap() {
map = new GMap2(document.getElementById("map"));
map.setCenter(new GLatLng(52.2021, 0.1346 ), 12); // (sets the map centre to Cambridge UK)
map.setUIToDefault();
}
function showPositionOnMap(position) {
var geoCoords = new GLatLng(position.coords.latitude, position.coords.longitude);
map.addOverlay(new GMarker(geoCoords));
}
function errorMessage(error) {
var errors = {
1: 'Permission denied',
2: 'Position unavailable',
3: 'Request timeout'
};
alert("Error: " + errors[error.code]);
}
</script>
Perhaps the sensor parameter in the maps invocation needs to be set to "true" - at the moment you have it set to "false". So your script tag should contain this url
<script src="http://maps.google.com/maps?file=api&v=2&sensor=true&key=ABQIAAAAycdS3aS7dItIegOaJzT2RBT2yXp_ZAY8_ufC3CFXhHIE1NvwkxSiGkO1l1KdZvNzo-8b-o7M21o4UA"></script>
For more info:
Google Maps Api sensor location