>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? -- View this message in context: http://osgeo-org.1803224.n2.nabble.com/How-to-Optimize-the-Display-of-Large-KML-files-in-OpenLayers-tp7024496p7025913.html Sent from the OpenLayers Users mailing list archive at Nabble.com. _______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
