[OSM-talk] Updating of slippy map

[Steve Chilton]

Can you please tell me jow to specify particular tiles/areas to request? I am doing surveying in the Lea Valley (in E London) and would like to be able to request an updated render of that area if possible.
 
Cheers
STEVE

	-----Original Message----- 
	From: talk-bounces at openstreetmap.org on behalf of Dirk-Lüder Kreie 
	Sent: Fri 12/15/2006 11:05 PM 
	To: talk at openstreetmap.org 
	Cc: 
	Subject: Re: [OSM-talk] Updating of slippy map
	
	

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	Steve Chilton schrieb:
	> Thanks for the offer. I will see how I get on first before troubling you.
	> Incidentally, can you expand on your "data is of mixed quality" comment?
	> Is there something the project should be addressing here?
	> 
	> Cheers
	> STEVE
	
	No sorry that was due to a lack of words (I'm not a native english
	speaker). The tiles are not from a single dataset like the mapnik layers
	that are generated from a single database dump, but the tiles represent
	what was available when the tile was rendered. Additionally the tiles
	are rendered at very different times so you might get tiles a few hours
	old next to tiles weeks old (but not necessarily outdated).
	Then there have been some changes in the rendering, patches to
	osmarender for example, that affected the visual outcome, together with
	the fact that some tiles get updated more often than others that *may*
	lead to a strange appearance on the map.
	
	And you are not really troubling me with requests. I am working on a
	jobserver (first only for my 4-5 renderers) that can take requests
	automatically.
	Furthermore experience shows that the tiles at home crowd can render faster
	than the Requests api can generate new jobs, so there are times where I
	am glad to have some meaningful render-work for my machines, i.e. your
	requests...
	
	HTH
	Dirk-Lüder "Deelkar" Kreie
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