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Google Maps: Why does MarkerClusterer not work?

Answer 1

+1 A:

I get this error in Firebug:

GOverlay is not defined
ClusterMarker_.prototype = new GOverlay();

Which probably is caused by running your initialize function before Google Maps has finished loading. Try removing the duplicate tag:

<div class="clear"></div>
<body onload="initialize()" onunload="GUnload()">
48<div class="grid_12">

I don't think you're supposed to add each marker to the map when you use MarkerCluser. Try removing this pr marker:

map.addOverlay(markierung1);

gregers 2009-05-26 06:45:19

Thank you for these good tips! The "addOverlay" isn't necessary, you're right. And the "body" tag was duplicate, too. I've corrected both faults.This didn't solve my main problem but I found out how to solve it by chance. The "markerclusterer.js" must be included after including "http://maps.google.com/maps?file=api". These two includes were changed in my code.

2009-05-26 12:36:36

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Google Maps: Why does MarkerClusterer not work?

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