Hi,
I started trying the first options but it is way to slow. Probably
because some never requested tiles also have to be rendered on the
server first?
Exact. I don't think it's a good idea anyway without asking the
server admin.
That will put a constant load on the server and prevent other users
to have a
responsive answer to their browsing.
I just found this similar post:
http://lists.openstreetmap.org/pipermail/dev/2009-March/014331.html
I guess I should go with rendering tiles on my own.
I already have the planet file
loadet into a PostGIS-DB
Does anybody know how many GB the whole world is? Or Germany?
Doesn't your Operating System support "display disk usage" of a
directory ?
Maybe I don't understand your question...
I'm working on the europe extract and I count around 3 times the
uncompressed
osm file or 30 times the compressed one (using osm2pgsql in slim mode)
but dispending of your method it may vary very much.
Or you mean tiles on disk usage ?
yes, that is what I meant. The size for the tiles. I could also
calculate it myself, assuiming an average files size of 13kB per
256x256 png
How long would it take to render on a quite powerfull desktop-
machine?
3 seconds for zoom 0
3 times the age of the universe at zoom 30
That all dispend on the max zoom you want.
As a rapid guess on germany at max-zoom 16 I bet it would take
around 2 days
I would want it for zoom up to zoom level 17.
Or are there any other ideas on how to get such a big amount of data?
See why almost no-one renders in advance every thing up to zoom 18 by
reading :
http://wiki.openstreetmap.org/wiki/Mod_tile
http://wiki.openstreetmap.org/wiki/Slippy_Map
I know why it does not make sense to render everything in advance, but
in my case I need the data instantly because the map will move very
fast.
Thanks a lot for your help. I guess I will just try Mapnik. Does
anyone know if there is a mobile style for Mapnik which looks similar
to the Cloudmade mobile style?
-Ivo
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