[OSM-talk] administrative boundaries that run along roads - in the Mapnik layer

[Lukasz Stelmach]

Steve Chilton wrote:

This is kind of workaround only. The real solution would be putting 
features on different layers automatically. For examples POIs 
(nodes) should be always above anything else while areas always 
below. Unless, of course, layer= says different. This should be 
supported by rendering engines not users.

> Where I have been mapping admin boundaries I put them all in as layer=1 - this brings them above most things in the mapnik rendering.
> See: http://www.openstreetmap.org/?lat=51.60655&lon=-0.05558&zoom=15&layers=B0FT
>  
> Cheers
> STEVE
> 
> 	-----Original Message----- 
> 	From: talk-bounces at openstreetmap.org on behalf of Adrian Frith 
> 	Sent: Sun 2/10/2008 7:06 PM 
> 	To: talk at lists.openstreetmap.org 
> 	Cc: 
> 	Subject: [OSM-talk] administrative boundaries that run along roads - in the Mapnik layer
> 	
> 	
> 
> 	Hi All,
> 	
> 	In Cape Town we've been mapping the suburb boundaries (which are
> 	official) as boundary=administrative admin_level=10. These boundaries
> 	run often down the middle of roads, railways or rivers. They show up
> 	very nicely on the Osmarender/T at H layer as dashed red lines - see for
> 	example
> 	http://www.openstreetmap.org/?lat=-33.95&lon=18.45&zoom=12&layers=0BFT
> 	
> 	On the Mapnik layer, however, they show up only where they do *not* run
> 	along roads or railways - it seems that the other features are rendered
> 	on top of the boundaries. Should we not be rendering administrative
> 	boundaries above real features?
> 	
> 	My understanding is that this would require a change to the z_order code
> 	in osm2pgsql. Is that correct?
> 	
> 	Regards,
> 	Adrian
> 	
> 	
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> 
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> 


-- 
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 >Łukasz<                 Już nie katolicka lecz złodziejska.  (c)PP



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