[OSM-dev] Bulk downloading of Mapnik tiles

[Stephan Plepelits]

On Mon, Mar 16, 2009 at 08:34:19PM +0100, Chris Browet wrote:
>      Probably not, because lots of the tiles would need to be rendered
>      especially for you.  _t_i_l_e_s_._o_p_e_n_s_t_r_e_e_t_m_a_p_._o_r_g basically only renders
>      tiles that are "looked at" at all, so bulk-requesting areas will
>      force
>      large areas to render to the highest detail.
> 
> Not true, AFAIK. Tiles are rendered as a whole once a week.
> I think there is a confusion with T at H (_t_a_h_._o_p_e_n_s_t_r_e_e_t_m_a_p_._o_r_g)
No, it's true. The tiles are rendered "on demand", using mod_tile. So if
nobody looks at a tile, it's not being rendered. Rendering everything to
the highest detail would take awful long.

Every Wednesday the database is updated to the newest version, from that
time on you get new tiles (or if the load is to high still an old version
or no picture if it has never been rendered before).

greetings,
        Stephan
-- 
Seid unbequem, seid Sand, nicht Öl im Getriebe der Welt! - Günther Eich
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| Stephan Plepelits,                                                  |
| Technische Universität Wien   -    Studium Informatik & Raumplanung |
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