[Tilesathome] tiles at home = mission impossible?

Sebastian Spaeth Sebastian at SSpaeth.de
Tue Apr 15 09:45:10 BST 2008


Norbert Hoffmann wrote:

>> But it will take more than two years anyway until half the world has
>> data recorded so why bother ,-) if you want nice-looking tiles even in
>> areas where no data exists just use Mapnik.

Given that most areas are water anyway, and the interesting areas are 
relatively small (such as all of Germany), I am not too concerned about 
the few tiles it needs to render that in low zoom.

> If I want a nice looking *street*map even in areas where data exist, I
> really use mapnik.

If you just need a progress indicator and do not expect prettyness from 
osmarender than you shoudn't be too concerned whether a secondary  road 
is pink or little more redish, right?

> That's why I tried to start a discussion here if the design of the workflow
> of rendering needs improvement. I saw, that one of your goals is to trigger
> lowzoom rendering, when a z12 tile changes. To reach this goal for z8-11,
> you don't want to generate and upload 3 unchanged z9, 15 unchanged z10 and
> 63 unchanged z11.

Sorry for sounding annoyed (I am slightly annoyed), but Norbert come on. 
If you have great ideas  of how to make things run smoother, then step 
forward and implement them. We would all love to have instantanously 
worldwide changes as soon as the style sheet is modified. I just deleted 
the old tiles from the dev server and the simple "rm" took nearly 3 
days. These are enormous amounts of data. Complaining without patches is 
not likely to result in a major effort by somebody else to redesign the 
whole thing. If people actually implement something, they have all the 
right of the world to do it as inefficiently as they can.

> (If a z12 changes and you want to show this up to z8, you can download 256
> tiles or 5 tiles. Its all a question of sw-design. :-)

As we lack a "proper" owner of the t at h server code, there is very little 
happening in that regard. People are busy fire-fighting stuff.

However, patches will be very welcome. An offer for ownership of the t at h 
architecture even more.

Sebastian




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