On: How big is the Google Earth database?

[brianwawok]

Would it?

If full detail zoom took 1 MB... that same area zommed out 2x would take 256KB.. zoomed out by 2 is 64 KB... zoomed out by 2x is 16 KB... Don't know all the zoom levels, but for a rough guess the zoomed in level should be pretty close to the total (within 30% or so).

[Bjartr → brianwawok]

Depends on if it's precalculated or dynamically generated from the full res and then cached.

[Retric → Bjartr]

Clients are clearly doing some scaling. So worst case is clearly less than 35% overhead for multiple zoom levels.

PS: Sum (0 to N) of (1/4)^N = 1.33333...

[brianwawok → Retric]

Thanks for adding the maths I did the lazy guess ;)