[OSM-dev] OT: generate_tiles.py generates blank images

John McKerrell john at mckerrell.net
Wed Oct 1 20:31:58 BST 2008


In case it helps, I've attached my version of generate_tiles.py and  
the XML file I'm using. I'm also using world_boundaries basically for  
test data but obviously when I've got it all working I'll remove that.

John

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On 1 Oct 2008, at 18:54, John McKerrell wrote:

> Hi
>
> First off, I'm afraid this isn't actually OSM related, but I'm hoping
> you'll help me out anyway.
>
> I'm trying to generate some tiles for postcode boundaries of a single
> UK city using mapnik. I've successfully generated a single image but
> when I try passing the same XML file into generate_tiles.py I just get
> blank data back. Does anyone have any suggestions for why? I'm pretty
> sure I'm passing the right bb in, it's (minlon,minlat,maxlon,maxlat)
> right? Here's what I'm using for swansea:
>
> 	bbox = (-4.09104,51.55263,-3.84899,51.67649)
>
> Any help would be much appreciated, am trying to avoid going with
> modtile for now as I'm generating the tiles for a client and can't
> control the servers they'd be hosted on, and I haven't setup modtile
> before.
>
> Cheers,
>
> John
>
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