Hi,
Recently, Chesapeake Bay (the largest estuary in the United States with a surface area of over
10,000 sqkm) has been changed from "natural=coastline" tagging to form a large
"natural=water;water=lagoon" multipolygon instead. The area has also been split into the
bay itself, the Pocomore So
By the way, an... amusing test case for all things related to water and
label placement is Lake Mälaren, the lake that Stockholm is separating
from the sea, and all its (named!) nooks and crannies:
https://www.openstreetmap.org/relation/1433877 . I've had at least 3
different bits of it poking
On Wed, 25 Nov 2020 at 08:45, Ture Pålsson via Tagging <
tagging@openstreetmap.org> wrote:
>
> (And I agree with Kevin about reconstructing an area from a point +
> surrounding coastline. I'd like to see at least an outline of an
> algorithm for that! Having said that, I also recognise that
> gazi
I mentioned the problem of mapping "fuzzy" areas to a friend, who
replied along the lines of "why, of course such areas should be mapped
as functions, taking a point as input and returning a real between 0
(definitely outside) and 1 (definitely inside)!".
I'd rather not have to implement that,
On Tue, Nov 24, 2020 at 9:23 AM Christoph Hormann wrote:
> The problem we have here is that of a widening gap between the goals and
> aspirations of the mapper community - which naturally grow as OSM grows in
> ambitions - and the abilities and engagement in the non-mapping part of the
> communit
> there were some attempts to suggest universally mapping bays with polygons
> rather than nodes previously:
>
>
> https://lists.openstreetmap.org/pipermail/tagging/2014-October/thread.html#19775
>
> which however never reached consensus because of the weighty arguments
> against this idea and beca
There seems to be quite a lot of anger and animosity in here - paired and in
parts probably caused by a very selective and in parts flat out wrong
perception of history so i will try to sketch quickly how the development of
mapping of names of parts of waterbodies (that is mostly bays and strait
On Mon, Nov 23, 2020 at 2:57 PM Frederik Ramm wrote:
> Now, you might smirk and say "let's fix the tools then", but until the
> tools are fixed - which might take years -, you've made life a hell of a
> lot harder for anyone editing or quality monitoring in the whole area.
>
> And all for what -
Hi,
I would like to make one point that has been touched on but not said
clearly, I think.
Some proponents of the recent changes to Chesapeake bay have used
reasoning like: "Only by mapping the bay as a polygon can $SOFTWARE
properly determine that a given location is in the bay, as opposed to in
I've spent a significant amount of time painstakingly re-mapping the
crudely-drawn PGS coastal boundaries of Rhode Island to conform to the wiki
definition of natural=coastline, having it traverse all the little bays,
coves, inlets, etc. I've also been adding named bodies of water as
polygons outs
Hi,
On 23.11.20 15:10, David Groom wrote:
> Using this logic the Mediterranean Sea, the Red Sea, and the Persian
> Gulf should all have the coastline tags removed from their defining ways
> and converted to water areas! Italy, Greece, Libya, Egypt and a large
> group of other counties would find
See comments below:
David
-- Original Message --
From: "Eric H. Christensen via Tagging"
To: "tagging@openstreetmap.org"
Cc: "Eric H. Christensen"
Sent: 18/11/2020 20:19:51
Subject: [Tagging] coastline v. water
After a few days of much work, a recent
Hi,
On Sat, Nov 21, 2020 at 07:09:45PM +, Eric H. Christensen via Tagging wrote:
> You cannot point to other area that may, in fact, be improperly mapped as an
> example when they are like that because locals have been shouted down for
> doing it correctly. The fact that this keeps coming ba
You cannot point to other area that may, in fact, be improperly mapped as an
example when they are like that because locals have been shouted down for doing
it correctly. The fact that this keeps coming back up literally means that
there is not universal agreement that "marginal seas", whatever
Eric,
I don't think the previous discussion is quite as inconclusive as your
evaluation.
While it is true that there is not widespread agreement on where the
natural=coatline ways should transect a river mouth or river estuary, there
is nearly universal agreement that marginal seas, including bays
‐‐‐ Original Message ‐‐‐
On Wednesday, November 18th, 2020 at 11:34 PM, Brian M. Sperlongano
wrote:
> This was fascinating reading. I do agree that we ought to have a definition
> for what gets tagged natural=coastline, and I think it's fine if that
> definition has some subjectivity
‐‐‐ Original Message ‐‐‐
On Wednesday, November 18th, 2020 at 5:04 PM, Christoph Hormann
wrote:
> > Eric H. Christensen via Tagging tagging@openstreetmap.org hat am 18.11.2020
> > 21:19 geschrieben:
>
> > [...]
>
> First: the matter has been discussed at length previously so i would ad
This was fascinating reading. I do agree that we ought to have a
definition for what gets tagged natural=coastline, and I think it's fine if
that definition has some subjectivity.
I would offer something as simple as:
"The coastline should follow the mean high tide line. In some cases this
rule
> Eric H. Christensen via Tagging hat am 18.11.2020
> 21:19 geschrieben:
>
> [...]
First: the matter has been discussed at length previously so i would advise
anyone who wants to form an opinion on the matter to read up on past discussion
where essentially everything relevant has been said al
On 2020-11-18 21:31, Joseph Eisenberg wrote:
> Consider that the natural=coastline is defined as representing the mean high
> water springs line, that is, the line of the highest tides.
Sorry to pick nits, but tides can be higher than MHWS; the "mean"
implies a long-term average, which will ofte
‐‐‐ Original Message ‐‐‐
On Wednesday, November 18th, 2020 at 3:31 PM, Joseph Eisenberg
wrote:
> Consider that the natural=coastline is defined as representing the mean high
> water springs line, that is, the line of the highest tides. If the line on an
> open ocean beach is at the hi
Chesapeake Bay, as the name “Bay” suggests, is a bay at the edge of the
Atlantic Ocean. It is a shallow estuary, similar to many othe partially
enclosed margins seas, e.g. the Salish Sea (including Puget Sound) in
Washington/British Columbia, San Francisco Bay in California, the Tampa Bay
in Florid
After a few days of much work, a recent collaborative project to turn the
Chesapeake Bay from a nothing space outlined by natural=coastline to what we
considered to be a more accurate relation of natural=water, we've received some
negative feedback.
The difference of opinion seems to lie in the
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