Thanks for all the ideas. Definitely seems like natural=coastline;cliff is a bad idea and may screw up coastline rendering. Using a collection relation seems like an overly complicated solution. I think I'll use natural=coastline coastline=cliff as suggested by Chris. That makes the most sense to me. Of course it won't render for now. Hopefully one day this or a slightly different tagging scheme will be rendered.
Zeke On Sat, May 1, 2010 at 7:16 AM, Chris Hill <o...@raggedred.net> wrote: > Zeke Farwell wrote: > > Hi, > > > > I'm newly subscribed to the tagging list so I apologize if this has > > been discussed before. Didn't find it in the archives though. I'm > > working on an area of coastline made up of cliffs and beaches > > < > http://www.openstreetmap.org/?lat=36.94817&lon=-122.065787&zoom=18&layers=B000FTF > >. > > There are many sections where the cliffs drop directly into the > > ocean and it seems logical to me that the coastline and the cliff > > should be represented as one single way where this is the case. > Coastlines are at the mean high-water mark. This could be at a variety > of types of surface: cliffs, beach, shingle, sea wall, mud and so on. > The way tagging seem to be heading is to add extra modifying tags. So > the natural=coastline could have an extra coastline=* tag. This could be > something like > > coastline=cliff > coastline=beach > coastline=shingle > coastline=sea_wall > coastline=mud > coastline=mangrove > > This process allows renderers and other processors to continue using the > natural=coastline tag as now, but later they may add rendering or > processing for the extra coastline types. There may also be cliffs or > sea walls inland of the mean high-water mark, but these are already > catered for. > > Cheers, Chris > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > http://lists.openstreetmap.org/listinfo/tagging >
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