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POusing the google maps API - marker cluster
 

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  1. POusing the google maps API - marker cluster
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    <p>I really am a JS noob - I have never really used itbefore and am struggling using the marker clusterer google provide. I have rad the documentation</p> <p>here is the code</p> <pre><code>&lt;script src="http://localhost/wheredidmytweetgo/js/markercluster.js" type="text/javascript"&gt;&lt;/script&gt; &lt;script type="text/javascript"&gt; //&lt;![CDATA[ function load() { if (GBrowserIsCompatible()) { var map = new GMap2( document.getElementById("map")); map.addControl(new GSmallMapControl()); map.setCenter( new GLatLng( 56.65622649350222, -19.86328125), 2); var mc = new MarkerClusterer(map); function createMarker(point, text, title) { var marker = new GMarker(point,{title:title}); GEvent.addListener( marker, "click", function() { marker.openInfoWindowHtml(text); }); return marker; } &lt;?php foreach ($cluster_location as $location) { ?&gt; var marker = createMarker( new GLatLng(&lt;?php echo $location ?&gt;), 'Marker text &lt;?php echo $location ?&gt;', 'Example Title text &lt;?php echo $location ?&gt;'); map.addMarker(marker); &lt;?php } ?&gt; } } </code></pre> <p>cluster location is just an array of lat and longs - My code is working fine when just using the add.overlay however there are too many to make the map readable hence the need for clustering. I do load the clustering JS which I have I have included. I create the clusterer object and pass in map as defined.</p> <pre><code>var markers = []; //create array </code></pre> <p>I know I can create a JS array and pass this in to </p> <pre><code>var mc = new MarkerClusterer(map, markers); </code></pre> <p>But I simply dont have the JS knowledge to create an array at this time (I intend to learn) and the Google documentation advises you can iterate and add one at a time using <code>addMarker</code></p> <p>Hi Tom - Thanksfor the info - I have tried doing what you advised and have came up with the below:</p> <pre><code>&lt;script src="http://maps.google.com/maps/api/js?sensor=false"&gt;&lt;/script&gt; &lt;script type="text/javascript" src="http://localhost/wheredidmytweetgo/js/markercluster.js"&gt; &lt;/script&gt; &lt;script type="text/javascript"&gt; function initialize() { var center = new google.maps.LatLng(37.4419, -122.1419); var map = new google.maps.Map(document.getElementById('map'), { 'zoom': 13, 'center': center, 'mapTypeId': google.maps.MapTypeId.ROADMAP }); var markers = []; &lt;?php foreach ($cluster_location as $location) { ?&gt;{ var marker = new google.maps.Marker({'position': &lt;?php echo $location;?&gt;}); markers.push(marker); } &lt;? } ?&gt; var markerCluster = new MarkerClusterer(map, markers); } google.maps.event.addDomListener(window, 'load', initialize); &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;h3&gt;A simple example of MarkerClusterer (100 markers)&lt;/h3&gt; &lt;p&gt; &lt;a href="?compiled"&gt;Compiled&lt;/a&gt; | &lt;a href="?"&gt;Standard&lt;/a&gt; version of the script. &lt;/p&gt; &lt;div id="map-container"&gt;&lt;div id="map"&gt;&lt;/div&gt;&lt;/div&gt; &lt;/body&gt; &lt;/html&gt; </code></pre> <p>But my map still loads empty. I'm using literally the most basic google provided code now and just loading my own markers in. I know my markers positioning should be okay because when I go to view my page source I can see </p> <pre><code>{ var marker = new google.maps.Marker({'position': 40.0994425,-74.9325683}); markers.push(marker); }); </code></pre> <p>for each marker. any more help would really be appreciated!</p>
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    1. USDaniel Benzie
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