[Talk-ca] Sinking islands...

[Bégin, Daniel]

You are right :-(
 
Two solutions are possible for the next release...
- Convert natural=land area into point feature - the easy solution to always keep the name available;
- Associate the name to the inner component - If it renders properly. 
 
The second one is much more complex (from my side). Can someone try it and send me the conclusion? 
 
Daniel

________________________________

From: G. Michael Carter [mailto:mikeycarter1974 at gmail.com] On Behalf Of G. Michael Carter
Sent: September 23, 2010 10:14
To: Bégin, Daniel
Cc: Talk-CA OpenStreetMap
Subject: Re: [Talk-ca] Sinking islands...


I notice for islands with names the name tag is on the natural=land.   

On 23/09/10 10:00 AM, Bégin, Daniel wrote: 

	Bonjour Michael,
	
	2010-08-16 11:54 [Talk-ca] Canvec.osm Product - Running!
	I wrote  "natural=land  area features are a duplicate of natural=water inner polygon. It will be removed for the next release.  Point features will still be there."  
	
	I understand that natural=land has priority in the rendering. Rendering will then "move" any overlapping features "under" the natural=land feature. It means you are better remove natural=land area before importing.
	
	The standard case for an island is 
	- an inner component of a relation type=multipolygon : natural=water
	- a polygon : natural=land
	- a polygon : natural=wood
	
	Remove the polygon natural=land and the polygon natural=wood will render properly  in the hole created by the inner component of the natural=water multipolygon.
	
	Daniel
	
	-----Original Message-----
	From: talk-ca-bounces at openstreetmap.org [mailto:talk-ca-bounces at openstreetmap.org] On Behalf Of G. Michael Carter
	Sent: September 23, 2010 09:09
	To: Talk-CA OpenStreetMap; talk-us at openstreetmap.org
	Subject: [Talk-ca] Sinking islands...
	
	
	  I was importing data in the Georgian Bay area and I noticed 
	something.   If an island is natural=land it renders in mapnik as white, 
	regardless of the outer multipolygon.   if you have natrual=wood or 
	possibly others, it sinks if it's not role=inner.
	
	This is at least what I've observed so far.   It's rather hard to figure 
	out when the mapnik tiles get cached and don't refresh in a timely fashion. :-)
	
	
	
	
	
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G. Michael Carter
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