[OSM-talk] Slippy map - Mapnik layer UK coastlines
artem at mapnik.org
Fri Mar 23 13:48:43 GMT 2007
On 23 Mar 2007, at 11:48, David Groom wrote:
> It seems that the UK coastline is beginning to render better in the
> layer of the slippy map (it's a solid blue fill, rather than the
> odd shaped
> grey polygons).
> However it does appear that the source for the coastline might be a
> out of date planet file.
> In some places, eg
> ,there is an exact correlation between coastline which is shown in the
> Mapnik and Osmarender layers.
> In other places eg ,
> ,the coastline outline in the Osmarender layer seems to be much
> more recent
> than the Mapnik layer.
For most of the world I was using original shoreline data, hence it's
not as smooth as it should. Polygons are only available for England
and Wales, the rest gets blue shoreline lines. To have proper
polygons for the whole planet :
1. We need to agree that storing countries boundaries as polygons is
2. We have to decide if storing these polygons in main OSM database
is a good idea or not. I personally think it'll be better to store
3. Start creating polygons. I have all the tools and I'm happy to
help anyone, but it is a big task which requires community
On the other hand, If one person capable of fixing most of the UK
coastline it should be peanuts for OSM as a whole. If you want to see
nice blue sea and land just do it, don't wait!
> talk mailing list
> talk at openstreetmap.org
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