Ages ago I included ditches, but so many were in loops, so I excluded them. I think the OSM wiki says they should be mapped on the direction of flow. However I'm not sure that's how OSMers have been doing it.
However, I can add a map view which includes ditches, and we can see what it looks like. 🙂 Can you open an issue on GitHub so I don't forget? I'm about to be AFK for a little bit. On Mi, 03 Jul 2024 1:01 +02:00, Clifford Snow <cliff...@snowandsnow.us> wrote: > 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 <ama...@technomancy.org> 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 >> talk@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk > > > -- > @osm_washington > www.snowandsnow.us > OpenStreetMap: Maps with a human touch -- Amanda _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
