Thanks for reminding me about your waterway map. There are a bunch of streams that I need to fix.
Could you help me with one issue I have? When a stream connects to a waterway=ditch, waterway map doesn't accept that was a continuation. Where I live, in a rural agricultural area, it is common for streams to in a ditch. For example, see https://waterwaymap.org/#tiles=planet-grouped-ends&map=15.19/48.514461/-122.354132 where the stream connects to a ditch, then flows into the Samish River. Can the program accept a ditch as a continuation? Thanks, Clifford On Tue, Jul 2, 2024 at 6:07 AM Amanda McCann <[email protected]> wrote: > [WaterwayMap.org](https://waterwaymap.org/), shows how rivers & streams > are connected in OSM. It's proven pretty popular with mappers. It's been > pretty undirected from the start, and I'm happy to say it's really going > downhill now. > > Previously waterways were joined together purely based on topology, > ignoring direction. River bifurcations occur more often than I thought, and > connect large water systems together. e.g. [casiquiare canal]( > https://github.com/amandasaurus/waterwaymap.org/issues/55) or the > [Garonne/Ebro](https://en.osm.town/deck/@amapanda/112240136848653730) > (causing [tagging questions]( > https://community.openstreetmap.org/t/is-there-a-common-tag-for-underground-infiltrated-watercourses/111558) > ). > > So, I've added a new calculation which groups ways together **based on the > direction they flow**, and which “end point” they flow into. All rivers & > streams which flow into the same river mouth will get coloured the same. > > ## [Explore the Downhill Waterway Map]( > https://waterwaymap.org/#tiles=planet-grouped-ends) _(or select “Natural > Waterways (downhills)” from the Settings)_ > > It's got some bugs. 🐞 (but they're cute aquatic bugs) > > When a river splits, the total upstream is split equally, and mapping > mistakes can cause a lot of upstream value to stop some random field > somewhere. All river segments upstream can be assigned to that end point, > and appear split off from other parts of the river downstream. It's already > been [seen]( > https://discord.com/channels/413070382636072960/413070502580453387/1257454307977203773) > in the [Murray-Darling river system in Australia]( > https://waterwaymap.org/#map=5.64/-31.123/145.889&tiles=planet-grouped-ends&len=500..inf). > Use the [Waterway Ends map](https://waterwaymap.org/ends) (prev. on > [forum 💬]( > https://community.openstreetmap.org/t/the-end-of-waterway-map/108632)) to > find where it ends. I hope that people will fix up these mapping mistakes, > and this will happen much less. Perhaps I can improve this by looking at > the `name` of the waterway. > > The [software which converts the geojson to vector tiles]( > https://github.com/felt/tippecanoe) has to drop some line segments, > causing gaps at certain zoom levels. Could this type of map be better with > raster tiles? 😳🙊 > > I'll be talking about WaterwayMap.org at [SotM Europe 2024]( > https://stateofthemap.eu/) in Łódź, Poland on [Sun. 10:00am]( > https://cfp.openstreetmap.org.pl/state-of-the-map-europe-2024/talk/K8LF7U/). > if you're around say hi. 🙂 (But first, the Alps are calling… 🥾🎒🏔️) > > > # See also > > * [News about WaterwayMap.org]( > https://en.osm.town/@amapanda/tagged/WaterwayMapOrg) can be found on > Mastodon/Fediverse (incl. [Atom/RSS feed]( > https://en.osm.town/@amapanda/tagged/WaterwayMapOrg.rss)): > * This code is on Github: [`amandasaurus/waterwaymap.org`]( > https://github.com/amandasaurus/waterwaymap.org). [New issue reports]( > https://github.com/amandasaurus/waterwaymap.org/issues/new) are welcome. > * The programme which generates it is [`osm-lump-ways`]( > https://github.com/amandasaurus/osm-lump-ways) > * [WaterwayMap on the OSM Forum]( > https://community.openstreetmap.org/tag/waterwaymaporg) > * [Waterway Loops](https://waterwaymap.org/loops) ([forum 💬]( > https://community.openstreetmap.org/t/the-wonders-of-early-medieval-fore-abbey-and-osm-river-topology-today-i-e-waterwaymap-org-is-going-around-in-circles/107497)) > which show probably tagging mistakes. > > ⓐⓜⓐⓝⓓⓐ 🌻 > > _______________________________________________ > talk mailing list > [email protected] > https://lists.openstreetmap.org/listinfo/talk > -- @osm_washington www.snowandsnow.us OpenStreetMap: Maps with a human touch
_______________________________________________ talk mailing list [email protected] https://lists.openstreetmap.org/listinfo/talk
