"It would be nice if the default rendering at www.openstreetmap.org would also recognize the intermittent tag."
Implementing that I mentioned in top post is for default style - see https://github.com/gravitystorm/openstreetmap-carto/pull/1000 2015-01-14 18:00 GMT+01:00 Tod Fitch <t...@fitchdesign.com>: > On Jan 14, 2015, at 8:28 AM, Wolfgang Zenker wrote: > > > * Mateusz Konieczny <matkoni...@gmail.com> [150114 15:45]: > >> waterway=wadi is used (18 180 times) and has some support (for example > JOSM > >> and default map style). > > > >> During implementing rendering of intermittent=yes I discovered major > >> problem with this tag - > >> the same waterway=wadi may be used for completely dried up waterway, > >> intermittent stream, intermittent major river and intermittent ditch. > > > >> Therefore - it seems that using waterway=river/canal/stream/ditch/drain > + > >> intermittent=yes is clearly superior to using waterway=wadi. > > > > In my experience a wadi will go from "completely dried up waterway" or > > "small stream" to a raging river within a few seconds after some > > rainfall upstream, and back to its former self within a few hours. > > Depending on the location, these rainfall events might very well be > > a few years apart. When I tag an "intermittent stream" I usually > > have something more benign in mind, like a stream that only exists > > during the spring snow melt and is dry the rest of the year, but > > maybe that is only my interpretation of an intermittent stream. > > > > Wolfgang > > > Your description of wadi matches many things locally called a "wash" in > the U.S. desert southwest. Yet when I suggested that I tag those as wadi I > was shot down. :) > > I've taken to tagging them as waterway=river/stream (depending on width) > and intermittent=yes. And, yes, in these cases "intermittent" may mean that > it only carries water for an hour or two every couple of years. > > The United States Geological Survey (USGS) topographic maps will show them > as either a line of sand or an intermittent waterway depending, I think, on > whim of the cartographer. > > A while back I submitted a change to the rendering for OsmAnd to recognize > intermittent=yes as without that desert areas look way to wet. For the > paper maps that I generate I've also created a Mapnik style that recognizes > intermittent=yes and uses the USGS style intermittent rendering. It would > be nice if the default rendering at www.openstreetmap.org would also > recognize the intermittent tag. > > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging >
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