Robert, Thanks for replying so quickly. I need these layers to be toggleable and in fact already have a checkbox expandable/collapsible tree in place, you can see an example of a previous version I created. Since then, I have completely changed the interface from my own custom design to ExtJS. But the idea, and the number of layers/points is basically the same:
http://www.chds.us/?dystopia:map Unfortunately what you see there is only 1/9th of what it will be (adding 8 more square land masses to create an island). So as you might imagine, optimizing the vector overlays is going to be a big hassle. I plan on implementing clustering, zoom filtering, and so on later on, but for now I am working on optimizing the layer loading and feature generation. The biggest problem at this point is if you check the Points of Interest parent (which checks all of its children, lots of points). But in short, the layers are loaded from KML. But when i tested just creating the layers, the 9 second lag time was really annoying me. Not to mention it hangs a bit. Thanks agian, Jake -- View this message in context: http://n2.nabble.com/Problem-loading-layers-tp4430938p4432031.html Sent from the OpenLayers Dev mailing list archive at Nabble.com. _______________________________________________ Dev mailing list Dev@openlayers.org http://openlayers.org/mailman/listinfo/dev