Right. With the current wiki meaning, the natural=coastline should be placed in the line between Punta del Este and Punta Rasa. These are verifiable physical facts. The limit has to be put in some place, and it is clear to all local mappers that the best option to put the limit is there. It is like an average of where the river stops the ocean. Here you can see the very different physical characteristics of both coasts, wind, currents, salinity, waves, tides, etc, as one is an ocean shore and the other a riverbank.
This is not a problem of the data, is about how the render look in low zooms. The coastline problem is in other rivers, like Elbe River, that it is placed 70 km inland, but as that does not bother the render seems that nobody cares. Regards, M. ----- Mensaje original ----- > De: "Joseph Eisenberg" <joseph.eisenb...@gmail.com> > Para: "Tag discussion, strategy and related tools" <tagging@openstreetmap.org> > Enviados: Martes, 4 de Agosto 2020 12:21:48 > Asunto: Re: [Tagging] Rio de la Plata edit war > We are not talking about a concept like "the coastline", we are talking about > the tag "natural=coastline", which in OpenStreetMap has been defined (for over > 12 years) as " The mean high water (springs) line between the sea and land > (with the water on the right side of the way) ". > "The natural = coastline tag is used to mark the mean high water springs line" > https://wiki.openstreetmap.org/wiki/Tag:natural=coastline > Mean high water springs is " the highest line the water reaches in normal > circumstances". > The problem is that we did not have a clear definition of where this line > should > cross a river or estuary. > However, it is widely agreed > thahttps://wiki.openstreetmap.org/wiki/Tag:natural=coastlinet the highest > tide line is the feature that > should be mapped on the edge of marine water bodies which have tides, > including > bays, fjords, lagoons and so on. > This means that the line tagged with natural=coastline is on the inland side > of > all marine water, including mangroves, salt marshes, and tidal channels, as > far > as possible. It makes sense that in estuaries, the route of the ways tagged > natural=coastline should also extend up to the limit of marine influence. In > some cases this has been taken to mean the limit of the tides, in others it is > the limit of mixing of salt and fresh water. > We are not mapping the low tide line or political baseline with > natural=coastline: the baseline is often far out to sea. Looking at the > Phillipines and Indonesia, the baseline has very little relation to the > physical geographical tide lines, since it merely connects the outer edges of > islands in the archipelago. > Similarly, in Uruguay and Argentina, the local governments have defined the > baseline as far out to sea as possible, so that they can claim a larger area > of > ocean as an exclusive economic zone. This should not influence tagging in > OpenStreetMap, which needs to be based on real, verifiable, physical > characteristics. > – Joseph Eisenberg > On Tue, Aug 4, 2020 at 7:57 AM < mural...@montevideo.com.uy > wrote: >> ----- Mensaje original ----- >> > De: "Christoph Hormann" < o...@imagico.de > >> > Para: "Tag discussion, strategy and related tools" < >> > tagging@openstreetmap.org > >> > Enviados: Martes, 4 de Agosto 2020 11:17:32 >> > Asunto: Re: [Tagging] Rio de la Plata edit war >> > On Tuesday 04 August 2020, mural...@montevideo.com.uy wrote: >> >> I linked several scientific studies that clearly shows and are >> >> verifiable geographic evidence that this is not an oceanic coast, its >> >> a riverbank [...] >> > I am not going to start a discussion here on the semantics of terms >> > like 'ocean', 'riverbank', 'coast' or similar which are inherently >> > culture specific and political. >> > So i repeat my request: >> > could you formulate a generic rule for coastline placement similar to >> > what i formulated in >> > https://wiki.openstreetmap.org/wiki/Proposed_Features/Coastline-River_transit_placement >> > that >> > (a) allows for the coastline placement you favor in case of the Rio de >> > la Plata >> > (b) is based on verifiable physical geography criteria that can >> > practically be checked by mappers and >> > (c) that is compatible to most of the current coastline placements at >> > river mouths around the world? >> > If you can do that we can try to have a productive discussion without >> > delving into the swamp of politics and cultural differences and maybe >> > can find a consensus position that everyone can be satisfied with. >> It's all about semantics. >> How could I answer your question if you are not able to define what you mean >> by >> natural=coastline? >> We must first agree on what features we call it coastline, and then I can >> explain where I think it should be drawn. >> Regards, >> M. >> --------------------------------------------------------------------------------------------------------------------------------------- >> Con el nuevo beneficio fiscal, tu facturación electrónica puede ser sin >> costo. >> Informate si aplicás aquí. >> mvdfactura.uy >> --------------------------------------------------------------------------------------------------------------------------------------- >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging --------------------------------------------------------------------------------------------------------------------------------------- Con el nuevo beneficio fiscal, tu facturación electrónica puede ser sin costo. Informate si aplicás aquí. mvdfactura.uy --------------------------------------------------------------------------------------------------------------------------------------- _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
