[Tilesathome] Tileset files

[Florian Lohoff]

On Tue, Sep 16, 2008 at 12:09:08PM +0200, spaetz wrote:
> Subject: Re: [Tilesathome] Tileset files
> 
> On Tue, Sep 16, 2008 at 10:33:09AM +0200, Dirk-L?der Kreie wrote:
> > would it overcomplicate things to put some metadata into a tileset file, so 
> > the client can record information about the rendering process (which 
> > datasource, which osmarender, which rasterizer and so forth)?
> 
> Well, you have those tilesets about 16 mio time per layer. since the
> tileset format works with fixed offsets you'd have to reserve 100 bytes
> for a renderer name, 8 bytes for the x,y, a byte for the layer etc.
> 
> Is this really worth the bloat? We know who uploaded a tileset and
> we know when it was rendererd.
> 
> I am not opposing it. Someone just needs to adapt all the tools that
> work with it (mod_tah.c, server, client) to allow for that and allow
> for a gradual switchover too. Can it be done? yes. Does it require
> effort and will destabilize things even more for a time? likely.

I'd vote for uploading a seperate xml with every tileset which mentions
the source of data (ROMA url, date/time, username etc).

There could be kept seperate and deleted 24h afterward or something.
The point could be that the source of problems could be traced back
if we had this information.

Flo
-- 
Florian Lohoff                  flo at rfc822.org             +49-171-2280134
	Those who would give up a little freedom to get a little 
          security shall soon have neither - Benjamin Franklin
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