Google Maps - Map Not Loaded - javascript

I'm trying to create a map and load .kmz file using the following code:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no"> <meta charset="utf-8">
<style type ="text/css"> html, body, #map-canvas { height: 100%; margin: 0px; padding: 0px}</style>
<script type="text/javascript" src="https://maps.googleapis.com/maps/api/js?libraries=visualization&key=mykey"></script>
<script type="text/javascript">
function initialize() {
var myOptions = {
center: new google.maps.LatLng(58.33, -98.52),
zoom: 11,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var kmzLayer = new google.maps.KmlLayer('link_to_kmz_file');
kmzLayer.setMap(map);
}
</script>
</head
<body>
<div id="map_canvas"> </div>
</body
</html>
The problem comes up when nothing is loaded and I have no idea why it happens. I should mention my API_KEY is valid, since I use it for creating another maps that does not require .kmz file loading, and I also do not store the .kmz file on localhost but on my own server.
I'd appreciate it if anyone could point me to the solution.
Thanks in advance.

In your HTML, you are using:
<div id="map_canvas"></div>
and in your CSS:
#map-canvas {
...
}
Issue: map-canvas ≠ map_canvas
Since the map needs a height to be displayed, your map won't show until you correct your CSS like hereafter:
#map_canvas {
...
}
+ You need to correct your closing </head> and </body> tags.
+ You need to call the initialize() function.
Add this to your javascript:
google.maps.event.addDomListener(window, 'load', initialize);

you aren't calling initialize() anywhere, just declaring it. Add it to the body onload if you want to call it when body loaded.
<body onload="initialize()">
also your closing body tag is incomplete
</body>
and your closing head tag
</head>

add after your function like this
`<script type="text/javascript">
function initialize() {
var myOptions = {
center: new google.maps.LatLng(58.33, -98.52),
zoom: 11,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
var kmzLayer = new google.maps.KmlLayer('link_to_kmz_file');
kmzLayer.setMap(map);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>`

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

Related

google map mouseevent in firefox shows incorrect coordinates

I have a google map api page that does not return the correct coordinates from the mouse event in firefox when the map div is not at the top left (0,0) of the browser window. If I put any css padding or margin on the map div, the mouseevent origin in google maps still starts from the top left of the browser window and not the map div. The mouseevent works correctly in IE & Chrome returning the correct lat/lng but not Firefox. Anyone have any suggestions to correct?
I created a very simple example at http://jsfiddle.net/fNPvf/15426/ that shows the coordinates as the mouse is moved over the map. You can see at the top left of the map image, the coordinates should be 0,0 but Firefox showing 50,50. The infowindow shows the correct lat/lng of the map center and you can see the difference in coordinates (50 pixel shift to top left) when you move the mouse to that point.
<html>
<head>
<meta charset="utf-8">
<style>
body {font:12px arial; margin:0px}
#map {
height:400px;
width:400px;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
<script>
var map;
coord = new google.maps.LatLng(38.939201, -94.747640)
function initialize() {
var mapOptions = {
zoom: 16,
center: coord
};
map = new google.maps.Map(document.getElementById('map'), mapOptions);
google.maps.event.trigger(map, 'resize');
var coordInfoWindow = new google.maps.InfoWindow();
coordInfoWindow.setContent('38.939201, -94.747640');
coordInfoWindow.setPosition(coord);
coordInfoWindow.open(map);
google.maps.event.addListener(map, "mousemove", function (event) {
document.getElementById("footer").innerHTML = "Mouse X Y:" + event.pixel.toString() + " - Lat Lng:" + event.latLng.toString() + "<br />"
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map" style="margin-left:50px;margin-top:50px;"></div>
<div id="footer" style="margin-left:50px; padding:10px;"></div>
</body>
</html>
Solution:
Add parameter v=3 once calling the google maps api. The fiddle provided by user4974882 is calling 3.exp - doesn't work.
Works:
<script src="https://maps.googleapis.com/maps/api/js?v=3"></script>
Live example
Doesn't work correctly:
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp"></script>
<script src="https://maps.googleapis.com/maps/api/js"></script>
Live example
(both fiddles from user4974882)
Background:
The problem occured with Firefox Version 39. The Mozilla-team implemented some new functionality regarding offsetX/Y (https bugzilla.mozilla.org/show_bug.cgi?id=69787). Unfortunately the Google Maps API already somehow plays around with that (https code.google.com/p/gmaps-api-issues/issues/detail?id=8278) and so - once FF39 was rolled out - the problem popped up.
Problem with latest release of FF v39. Worked previously in v38.0.5.
I can confirm that the following is bugged, given a map with a fixed size and a 64px margin, "Hello World!" will only appear when you place the mouse pointer at -64,-64 relative to the marker. It appears that inside Maps, the pointer position is offset by the x/y of the map element relative to the top left corner of Firefox' client area
This issue has appeared in the last few days
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Simple markers</title>
<style>
#map-canvas
{
width: 640px;
height: 480px;
margin: 64px;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
<script>
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var mapOptions = {
zoom: 4,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World!'
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
When creating a marker use the option {optimized:false}. It solves the issue in firefox 39.0.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Simple markers</title>
<style>
#map-canvas
{
width: 640px;
height: 480px;
margin: 64px;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>
<script>
function initialize() {
var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
var mapOptions = {
zoom: 4,
center: myLatlng
}
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
var marker = new google.maps.Marker({
position: myLatlng,
map: map,
title: 'Hello World!',
optimized: false
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
As stated - this bug crept in with FF 39.
In your example, replace the v=3.exp parameter with just v=3
So it would be
src="https://maps.googleapis.com/maps/api/js?v=3"

Google Maps JavaScript API v3 - how to disable city's local name and have label only in preferred or selected language

does anyone know how to always display single label for a city i.e. disable city's local name if there is equivalent in language that was selected during Google Maps API initialization (e.g. &language=en)?
So to be more specific, not to have double names (English and local names displayed together on the map) as it happens for Ukraine, China, Japan now, when language=en is selected for Google Maps API?
Thank you in advance for any tips!
<!DOCTYPE html>
<html>
<head>
<title>Map</title>
<style>
html, body, #map-canvas {
height: 100%;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.16&language=en"></script>
<script>
function initialize() {
var mapOptions = {
zoom: 5,
center: new google.maps.LatLng(45.6, 29.5)
};
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
code snippet:
function initialize() {
var mapOptions = {
zoom: 5,
center: new google.maps.LatLng(45.6, 29.5)
};
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body,
#map-canvas {
height: 100%;
}
<script src="https://maps.googleapis.com/maps/api/js?v=3.16&language=en"></script>
<div id="map-canvas"></div>

Google maps infowindow display kml object name and link

I have some working code to display a KML layer on Google maps. When you click on the various parts of the layer their respective name pops up in an info window.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 100% }
</style>
<script type="text/javascript"
// Load Google Maps API
src="https://maps.googleapis.com/maps/api/js?key=XXXXXXXXXXX&sensor=false">
</script>
<script type="text/javascript">
function initialize() {
var myLatlng = new google.maps.LatLng(51.875696, -0.624207);
var mapOptions = {
zoom: 6,
center: myLatlng
};
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var kmlLayer = new google.maps.KmlLayer({
url: 'http://XXXXXXX.org/gliding/grid3.kml',
suppressInfoWindows: false,
map: map
});
google.maps.event.addListener(kmlLayer, 'click', function(kmlEvent) {
var text = kmlEvent.featureData.name;
showInContentWindow(text);
});
function showInContentWindow(text) {
var sidediv = document.getElementById('content-window');
}
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas" style="width:100%; height:100%; float:left"></div>
</body>
</html>
I would like the info window to also contain a link to a page with the same name as object clicked on. For example if the user clicks on a shape in the KML layer called Tom the info window says Tom Click Here. If the user clicks the link they are taken to www.XYZ.com/Tom.
I'm sure this is quite simple, but I'm new to javascript and can't get it to work.
This is more a hack than a solution (which means google could change a property name and this would stop working.
However, here you go
google.maps.event.addListener(kmlLayer, 'click', function(kmlEvent) {
var text = kmlEvent.featureData.name;
kmlEvent.featureData.infoWindowHtml += 'Click Here';
showInContentWindow(text);
});

My ImageMapType implementation stucks

I'm trying to implement a basic image map of my own. But I got error with my code. It runs into error on the line I highlighted (with **). The map fallbacks to default roadmap. The error message is just "Error" and I have no clue what is going on.
Can you please help look into it?
Many thanks!
My javascript code:
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 100% }
</style>
<script type="text/javascript"
src="https://maps.googleapis.com/maps/api/js?key=my-api-key&sensor=true">
</script>
<script>
// custom map type
var mapTypeOptions = {
getTileUrl: function(coord, zoom) {
return 'http://http://placehold.it/256x256.gif';
},
tileSize: new google.maps.Size(256, 256),
name: 'Some Place',
};
var customMapType = new google.maps.ImageMapType(mapTypeOptions);
// initalize function
function initialize() {
// try to create a new map with custom map type
var mapOptions = {
center: new google.maps.LatLng(22.33173, 114.16061),
zoom: 17,
minZoom: 17,
mapTypeId: google.maps.MapTypeId.ROADMAP,
};
var map = new google.maps.Map(document.getElementById("map-canvas"), mapOptions);
map.mapTypes.set('ssp', customMapType); // ****
map.setMapTypeId('ssp');
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"/>
</body>
</html>
Looks like your missing a config setting
mapTypeControlOptions: {
mapTypeIds: ["ssp"]
}
Also, you need to define maxzoom for mapTypeOptions.
See the example: https://developers.google.com/maps/documentation/javascript/maptypes#ImageMapTypes
You've also got some validation errors, remove trailing commas before closing an object.

FusionTableLayer Map and Sidebar

The vanilla code you get when creating a map from a Fusion Table looks like document below. Can a sidebar be created from within that also or do I need to dump the javascript and start from scratch?
<!DOCTYPE html>
<html>
<head>
<style>
#map-canvas { width:500px; height:300px; }
</style>
<script type="text/javascript"
src="http://maps.google.com/maps/api/js?sensor=false">
</script>
<script type="text/javascript">
var map;
var layerl0;
function initialize() {
map = new google.maps.Map(document.getElementById('map-canvas'), {
center: new google.maps.LatLng(33.79274320730208, -118.12398762656244),
zoom: 12,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
layerl0 = new google.maps.FusionTablesLayer({
query: {
select: "col4",
from: "1bjD4dXHwKM8AYfEFFDQk8Q2RID18EAJi5pSl0wY"
},
map: map,
styleId: 2,
templateId: 2
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
A sidebar can be added to that code, but it needs to query the table to populate the sidebar. A couple of examples are below. You might also be able to make it work by triggering a click event on the FusionTablesLayer.
Example
Example

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