[Tilesathome] tiles at home = mission impossible?

[Frederik Ramm]

Hi,

> That was a rerender of all (at that time existing!) tiles and before the
> design of lowzoom changed. If you would try this now, you would have to
> wait for more than 2 years. The design specs for lowzoom now say: We need
> everything (independent of the existence of data).

But even if the lowzoom process triggers re-rendering, it doesn't 
actually refuse to create a z8 tile just because one of the z12 tiles is 
missing, or does it? So why do you say "have to wait"?

And as for the t at h design: The bottleneck is downloading data from the 
API. It would be a waste to download the data and then only render a 
little bit, and come back later to render the rest (requiring a new 
download).

What we currently have means that the lowzoom tiles are not always up to 
date; sometimes you zoom in to find something has been added that's not 
yet on the lowzoom tile. Which is not too bad, you're used to that when 
dealing with online maps. But imagine someone has rendered an extra z12 
captionless tile for lowzoom but has not bothered to do the detailed 
tiles... you zoom in and suddenly stuff that was visible on the lowzoom 
tiles is gone ;-)

Bye
Frederik