[Openstreetmap] landsat background to the static renderer

[Tom Carden]

Nick Whitelegg wrote:
> Sorry if I didn't make myself clear - osm-editor also grabs the data from
> NASA over HTTP, so that feature's common, yet the trip from the OSM server
> to NASA and back seems much quicker than the trip from osm-editor on my 
> box
> (over broadband) and back. Do you have a much faster connection than
> standard 1Mbps broadband?
>

When you visit openstreetmap.org your browser fetches the satellite image 
direct from NASA.  The OSM server's connection to NASA is irrelevant - there 
isn't one.  If you look at the html, and search for nasa, you can see the 
URL it uses.

Differences between your app's connection speed and your browser's 
connection speed, assuming the same URLS, are probably due to the fact that 
most browsers start rendering an image as soon as they get enough data to 
show, whereas your app (I haven't looked) probably doesn't.

It also makes a difference what size image you ask for, and I assume the 
time of day makes a difference too (though I haven't tested it).

Best,

Tom.