Tell me more ×
Geographic Information Systems Stack Exchange is a question and answer site for cartographers, geographers and GIS professionals. It's 100% free, no registration required.
up vote 4 down vote favorite

I'm trying to register a listener event on "loadend" for my google maps layer on OpenLayers. But for some reason it's not firing. There must be something small i'm overlooking. What is wrong with my code?

Code:

<!DOCTYPE html> 
<html> 
    <head> 
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> 
    <meta name="viewport" content="width=device-width; initial-scale=1.0; maximum-scale=1.0; user-scalable=0;"> 
    <meta name="apple-mobile-web-app-capable" content="yes"> 
        <title>OpenLayers Google (v3) Layer Example</title> 
    <link rel="stylesheet" href="../js/OpenLayers/theme/default/style.css" type="text/css" /> 
    <link rel="stylesheet" href="style.css" type="text/css" /> 
    <style>
    .olLayerGoogleCopyright{ display: none};
    </style>
        <script src="http://maps.google.com/maps/api/js?v=3.5&amp;sensor=false"></script> 
        <script src="../js/OpenLayers/OpenLayers.js" type="text/javascript"></script> 
        <script>
        var map;
        var gmapLayer;

        function init() {
            map = new OpenLayers.Map('map');

            gmapLayer = new OpenLayers.Layer.Google(
            "Google Streets", // the default
            {numZoomLevels: 20, 'sphericalMercator': true }
            );

            gmapLayer.events.register("loadend", gmapLayer, function (e) {
                console.log(e);

            });        

            map.addLayer(gmapLayer);

            // Google.v3 uses EPSG:900913 as projection, so we have to
            // transform our coordinates
            map.setCenter(new OpenLayers.LonLat(10.2, 48.9).transform(
            new OpenLayers.Projection("EPSG:4326"),
            map.getProjectionObject()
            ), 12);

        }

        </script> 
    </head> 
    <body onload="init()"> 

        <div id="map" class="smallmap"></div>

    </body> 
</html>
share|improve this question

1 Answer

up vote 4 down vote accepted

OftenThe Google layers work differently from other layer types as they are loaded through the Google API rather than OpenLayers code.

The loadend issue is logged as a bug in the OpenLayers bug tracker, but its status has since been changed to a (non-completed) feature.

Instead you could try capturing the tilesloaded event from the Google API, and put your custom function when this event is called.

If you have a Google map layer, then you also have the Google API loaded, and access to the Google map object so you should be able to use something like:

GEvent.addListener(gmaplayer.mapObject, "tilesloaded", function() {
  console.log("Tiles loaded");
});
share|improve this answer
Thanks, that did the trick – CaptDragon Jun 7 '11 at 12:52

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.