[OSM-talk] Coastlines

[Andy Robinson]

Andy,

Warm welcome to OSM.

natural=coastline is the preferred method of setting the coastline which as
I recall should ideally be set at the high water mark line.

If you are mapping where nobody has been before you then the coastline you
are seeing in JOSM is a result of various import scripts running to bring in
freely available data. However if you were to take you GPS and walk along
the water line you will almost certainly produce a more accurate result so
remove or adjust the segments/ways that are wrong so that you have just one
line that you are happy with. This single line doesn't need to be one way,
in fact it is better to make it up from a series of ways so that no
individual way is overly long.

Hope that helps.

Which part of the coast are you on?

Cheers

Andy Robinson
Andy_J_Robinson at blueyonder.co.uk 

>-----Original Message-----
>From: talk-bounces at openstreetmap.org [mailto:talk-
>bounces at openstreetmap.org] On Behalf Of Andy Street
>Sent: 19 January 2007 6:59 PM
>To: talk at openstreetmap.org
>Subject: [OSM-talk] Coastlines
>
>Hi,
>
>I'm a newbie just starting out mapping for OSM. Some of the areas I
>have been looking at are near the coast and when viewing these with
>the Mapnik db layer the coastal shading is inaccurate with some land
>shown in the darker colour. I opened up an area in JOSM and discovered
>that some of the coastline was defined as a way while others were just
>segments.
>
>Before I begin editing can someone confirm that creating ways (tagged
>natural=coastline) is the preferred way to define the coastline?
>
>Thanks,
>
>Andy
>
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