[OSM-talk] Fw: calling all python coders for slippy map help

raphael Jacquot sxpert at sxpert.org
Fri Nov 17 12:59:36 GMT 2006


Nick Black wrote:
> What about basing tile regeneration on tiles areas that have been
> edited heavily, so only areas with recent edits are regenerated and
> set a threshold of n edits per tile to cause regeneration?   A
> potential problem with this would be the need to regenerate the lowest
> zoom levels every time anyway, but the higher the zoom level the more
> important is is that the tiles are up to date.  If its the lower zoom
> levels that cover large areas that take up the most time, could they
> be scheduled to be regenerated less frequently?
> 
> Nick

use the fact that the lower the zoom level the longer it takes to render 
a tile. and create a work queue for each level. the render process would 
then just grab the next tile to update in the work queue...




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