[OSM-talk] Mapnik tileset coherency issues

[Frederik Ramm]

Hi,

> What I mean is, say a tile x,y,z is dirty and needs to be  
> rerendered. You would include adjacent tiles on a given z , but  
> also on lower z levels (say a dirty tile x,y at zoom level 12,  
> would also mean all tiles contained by tile x,y at subsequent zoom  
> levels 13,14 ... would be considered dirty in the same job). Could  
> you render this batch of tiles than into a cache, before committing  
> the whole batch to the live tileset, thus ensuring more consistency ?

My understanding is that mapnik is so fast at rendering tiles that  
rendering a whole tileset (level 12 and everything below it) could be  
done in a time short enough as to not require any extra "buffering";  
the inconsistent state would probably only exist for a few minutes.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00.09' E008°23.33'