FW: FW: [Openstreetmap] Recent improvements to the editing applet

[Thomas Walraet]

Erik Johansson wrote:
> 
> I don't think there is much speed up to be gained from this method,
> and the bandwidth will be doubled. But you are right it's alot cleaner
> way fo doing things.

The bandwith overhead is not that simple to evaluate.

Landsat picture will stay longueur in browser and proxy caches. Road 
picture will be real small (few color, large uniform color surfaces)

And it allow to easily balance the load by putting landsat and roads on 
different servers.


Another idea : by using separate pictures, it could be easier to code a 
system to re-use landsat images from one zoom level to another. (It was 
suggested somewhere on the wiki)