Tricky - it appears to be a rule that all the famous sea caves are
accessible by foot at low tide (there's probably a geological reason, like
why sea cliffs tend to have a ledge below exposed at low tide). That said,
some sea arches have inward-sloping sides - e.g. Stair Hole
On 2019-07-11 22:45, Borbus wrote:
> On Thu, Jul 11, 2019 at 9:19 PM Colin Smale wrote:
>> * Coastal admin boundaries (the "Extent of the Realm") are usually MLWS,
>> but there are such things as "seaward extensions" which extend the
>> "realm" further into the water. Check out for example
Good point. Do you know of one? Let's have a look at how the OS deal
with it.
On 2019-07-11 22:52, Edward Catmur wrote:
> On Thu, Jul 11, 2019 at 9:19 PM Colin Smale wrote:
>
>> * Where the coastline is essentially vertical (harbour walls, steep cliffs)
>> MHWS and MLWS can coincide in OS
On Thu, Jul 11, 2019 at 9:19 PM Colin Smale wrote:
> * Where the coastline is essentially vertical (harbour walls, steep
> cliffs) MHWS and MLWS can coincide in OS data (sharing nodes but not ways),
> but of course low water can never be landward of high water.
>
Is this necessarily the case?
On Thu, Jul 11, 2019 at 9:19 PM Colin Smale wrote:
> I would recommend you don't refer to "the two coastlines" as this will
> just lead to confusion. The one true coastline is the high water line,
> taken to be MHWS (in England and Wales). The low water mark is also
> useful because that is where
Hi,
Great!
Don't worry about having "too many nodes" - the OS data is already
generalised a bit (I think they target 1:1) so it could be a lot
"worse". I spend a lot of time curating the admin boundaries;
occasionally I will update a bit of coastline from OS data when I am "in
the area".
You'll probably get comments about import guidelines but I did similar for
Tendring about 9 years ago before there were any. I think your use of the word
import in this scenario may be misleading as you're not bulk importing the
whole coastline but selectively improving sections of coastline by
Hi,
I've recently done an import of coastline data from OS VectorMap into OSM
around The Wash. I did this because I'm interested in coastal regions and
the coastline was a complete mess in that area. I'm sure it's similar in
other parts of GB as well.
The mess often happens because mappers don't
Thanks both
On Wed, 10 Jul 2019 at 21:53, Peter Neale via Talk-GB <
talk-gb@openstreetmap.org> wrote:
> ...Or, looking at their website, it is a charity, so perhaps that makes it
> a "social facility"?
>
> Oh BTW, it is "St John Ambulance", not "St John's Ambulance" (I don't know
> why, but it
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