[OSM-talk] Extra zoom level needed?

Maarten Deen mdeen at xs4all.nl
Mon May 17 13:37:09 BST 2010


On Mon, 17 May 2010 14:32:34 +0200, Fabio Alessandro Locati
<fabiolocati at gmail.com> wrote:
>> Adding a zoomlevel adds 4 tiles for each tile in the previous
zoomlevel.
>> You'll go from 91 billion tiles to 366 billion.
>> This meaning you need 4 times the load to generate, 4 times the storage
>> to
>> hold them, 4 times the traffic to display them.
> Mathematically speaking is true, but maybe is not true in real world.
> I have seen a lot of times people not using the last level of zoom
> (how many times you have to see a whole road or even more then one
> road? ) therefore the traffic will not be 4 times more. Also, even
> considering '4 times more' as true, we have to consider that is only 4
> times more the traffic generated by the zoom level 18, not the whole
> OSM traffic.

True. It will probably generate more traffic (it will in cases where
people zoom in to an area) but 4 times is probably overstating it (I was
extrapolation on the "4 times" bit too eagerly).

Regards,
Maarten




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