[OSM-dev] [Tilesathome] I'd like a list of the file size of all z12 tilesets
Ævar Arnfjörð Bjarmason
avarab at gmail.com
Mon Jun 1 04:42:31 BST 2009
2009/5/31 Ævar Arnfjörð Bjarmason <avarab at gmail.com>:
> 2009/5/21 Ævar Arnfjörð Bjarmason <avarab at gmail.com>:
>> On Wed, May 20, 2009 at 6:53 PM, Sebastian Spaeth <sebastian at sspaeth.de> wrote:
>>> Ævar Arnfjörð Bjarmason wrote:
>>>> I want to play with producing a heat map of the globe where "heat" is
>>>> determined by the relative size of t at h tilesets at z12.
>>>>
>>>> I could also use the tiles themselves, but I suppose the tilesets will
>>>> be a better indicator of complexity. But whatever's easy.
>>>>
>>>> Could someone with access to the t at h servers pretty please generate
>>>> this for me? :)
>>>
>>> 20:51 < spaetz> http://tah.openstreetmap.org/media/filesizes.bz2
>>> 20:52 < spaetz> result of ls --file-type -l -R > filesizes
>>> 20:52 < spaetz> takes some grepping, and cutting to get the raw sizes,
>>> but the
>>> info is in there.
>>
>> I converted it to something better using a hacky ad-hoc script (attached):
>>
>> http://u.nix.is/~avar/tile-sizes.txt.bz2
>
> I went ahead and created a renderer so it now makes a heat map, it's
> under applications/rendering/tah-heatmap in svn:
>
> http://trac.openstreetmap.org/changeset/15441
>
> Example output here:
>
> http://u.nix.is/~avar/osm-heatmap.png
Using 32 times the median as the maximum value makes things somewhat better:
http://u.nix.is/~avar/osm-heatmap-black-2.png
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