[Talk-GB] OS OpenData coastlines

Chris Hill osm at raggedred.net
Wed Apr 4 17:50:48 BST 2012


I imported some OS OpenData coastline stuff not long after they came 
out. I wrote up a wiki page about using the OS OpenData vector stuff 
here: http://wiki.openstreetmap.org/wiki/Using_OS_Shapefiles . I expect 
there are better ways than this now.

I know that tracing Bing can be better in some places. Where the 
coastline is changing quickly, such as parts of the fast-eroding east 
coast for example, Bing, being newer, is better in my experience. You 
need local knowledge or a survey to establish where the high-water mark 
is (where coastline should be placed) from the imagery. Sometimes that 
should be part-way up the beach on the strand line but sometimes at the 
base of a cliff or seawall.

-- 
Cheers, Chris
user: chillly




On 04/04/12 17:06, Andy wrote:
> Looking at the wiki, it seems that Ordnance Survey OpenData includes
> high resolution coastline data, much nicer than the PGS data which is
> currently used. Is there an established method for using this vector
> data? I'm not after a mass import of any kind, but it would be nice to
> be able to manually select chunks of it to improve tricky coastline
> areas.
>
> Sorry if I'm dragging up an old issue here, I had a quick look around
> but couldn't find anything conclusive.
>
> Cheers,
> Andy
>
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