[OSM-talk] Mapnik Rendering of Tiled Objects
S.L.Chilton at mdx.ac.uk
Sun Aug 12 20:05:38 BST 2007
If I bring in lakes at an earlier zoom in the osm.xml stlye sheet is there any way that you can do any check on the effect on rendering?
Maybe bring in at z9 only first to see, and do no other changes so that it can easily be reverted.
Is there going to be conflict in some areas? For instance Great Lakes come in at 7,8,9 (is this data from other source)?
From: talk-bounces at openstreetmap.org on behalf of Jon Burgess
Sent: Sun 8/12/2007 4:14 PM
To: Adam Schreiber
Cc: Talk Openstreetmap
Subject: Re: [OSM-talk] Mapnik Rendering of Tiled Objects
On Fri, 2007-08-10 at 14:47 -0400, Adam Schreiber wrote:
> With a lake that has been tiled because it's bigger than a zoom 12
> tile, is there a way to let mapnik know that it should be rendered at
> lower zoom levels? For all of t at h's issues at low zoom, it shows the
> lake at zoom 6 as it should.
The Mapnik osm.xml style file lists how things should be displayed and a
range of applicable zoom levels. In the case of lakes, it says they
should only be rendered for zoom 10+.
If we want lakes rendered at lower zooms then we just need to adjust the
appropriate range of zooms in the osm.xml. As was discussed on IRC, the
suggestion currently is to add them for all zooms. This should be OK so
long as it does not take an unreasonable amount of time to render the
low zoom tiles.
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