[OSM-dev] Conflict management

Robert (Jamie) Munro rjmunro at arjam.net
Thu Mar 20 11:29:36 GMT 2008


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Gervase Markham wrote:
| Milo van der Linden wrote:
|> If the possibility would be built into the general map at
|> www.openstreetmap.org to detect the browser language and show the render
|> for that particular language, half the problems would be gone.
|
| One problem with this is that the tileserver would have to render, store
| and serve multiple tiles for each location. That would increase the
| amount of time it spent rendering and the amount of disk space required.

Storing is only needed at low zoom levels. At higher levels, it can
render on demand - so it doesn't need to store tiles that never get
viewed, and can purge the highest zoom tiles if it is short of space.
Since rolling out mod_tile, it's had plenty of spare capacity.

In many places, only one language will be available, or the default
language + 1 other, so in theory we would only need to keep one tile for
the default language and serve that for most languages. I guess we would
query PostGIS to ask what languages are in the area, if the target
language isn't there, we serve the default tile and link it as the
specific language tile as well.

Robert (Jamie) Munro
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