ClusterMarker isn't really designed for handling large numbers of markers, it's designed for handling the situation where bunches of markers would overlap.
To handle large numbers of markers, you should be looking at Clusterer or MarkerManager or server-side clustering. To decide if you need to use server-side clustering, multiply the maximum number of markers that you want to be able to handle by the amount of data that you need to transfer for a typical marker (that will vary depending on how much data you're displaying in the infowindow). Multiply the result by 10 to get the transfer size in bits and divide it by the bit speed of a typical user's broadband connection. That gives you a rough idea of the time it will take to transfer the data: E.g. 8000 markers with typically 1000 bytes of data each, is about 8 megabytes, which is 80 megabits, which is 80 seconds on a 1 Megabit broadband connection. If you consider an 80 second delay unacceptable, then you'd have to do you clustering on the server. -- Mike Williams http://econym.org.uk/gmap -- You received this message because you are subscribed to the Google Groups "Google Maps API" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-maps-api?hl=en.
