> An empty 2-color png has a size of only 116 Bytes so network-traffic should > be also no problem. Once you are below TCP packetsize it doesn't really matter.
Keep in mind that you will have to use a PNG transparency hack to IE users (also I'd go for a bit more than 2color PNG, since that will look crappy). > Rendering-on-demand sounds a good idea or we render on free resources off > external computers. Should be totally doable, I'm rendering all high zoomlevels in WMA on demand (with caching) and the WIOSM layers would be geometrically very simple. _______________________________________________ Maps-l mailing list [email protected] https://lists.wikimedia.org/mailman/listinfo/maps-l
