[OpenLayers-Users] Re: How to Optimize the Display of Large KML files in OpenLayers?

[Rossko]

 >at this site: http://gis.zgroks.com/bbigm.html I am able to display the
same KML file very rapidly using the Google Maps JavaScript API V 3

Here's what Google does for the 'KmlLayer' feature of their v3 API : the KML
url is sent to Google's servers, KML source is retrieved by them, and
rendered into image tiles there.  The client API only requests a dozen or so
tiles, all the intensive processing is done at Google's powerful servers and
none at the client side.
(As a bonus this process gets around same-domain XML restrictions as well.)

To get the same performance, you need some server-side service to remotely
process and render your KML as, say, a WMS.  I think you may be able to do
that with Mapserver? 

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