this post was submitted on 25 May 2026
19 points (100.0% liked)

OpenStreetMap community

5514 readers
14 users here now

Everything #OpenStreetMap related is welcome: software releases, showing of your work, questions about how to tag something, as long as it has to do with OpenStreetMap or OpenStreetMap-related software.

OpenStreetMap is a map of the world, created by people like you and free to use under an open license.

Join OpenStreetMap and start mapping: https://www.openstreetmap.org/.

There are many communication channels about OSM, many organized around a certain country or region. Discover them on https://openstreetmap.community/

https://mapcomplete.org/ is an easy-to-use website to view, edit and add points (such as shops, restaurants and others)

https://learnosm.org/en/ has a lot of information for beginners too.

founded 6 years ago
MODERATORS
 

Hello dear friends!

Pls, may wonder how can i, and ever i create a polygon (woods) by drawing a line (white one without tags) in web0-editor iD?

if i delete dependencies from lake-coast (wich is multypolygon by itself) and then cut it on fist and second forming dot's - then i can create new multypolygon from 2 lines but after doing so - lake is gone completely

Hope for help

  • Maybe anyone can reccomend YouTube or other sources tutorial video's for web-editor iD?

Thank you

you are viewing a single comment's thread
view the rest of the comments
[–] diverging@piefed.social 1 points 21 hours ago (1 children)

What they are suggesting is certainly possible. A segment can be shared between two different relations.

The process would be: 1) Draw the line around the boundary of the forest, connecting the endpoints to points on the lake. 2) Split the way that is part of the lake at the two endpoints of that new line. 3) Select each way you want to be in the new multipolygon and create a new relation.

Doing this makes it so that there is a single way with two relations on it, instead of two ways (each with a single relation) that share a bunch of points.

[–] iuvi@lemmy.ca 1 points 16 hours ago (1 children)

Yeah, i do this way always , but maybe i don't get write it correct in English (not my born language) Let me try to change a chapter:

The way you described used by me all the time, line touches polygon in two points where it can be cutted and worked on forward very well (anyway thanks!)

But, if you draw a line that touches multypolygon - cut tool ain't works in places it touches multypolygon (not allowed - showed as gray)

[–] diverging@piefed.social 1 points 15 hours ago (1 children)

You may have to download the the data for the whole lake. Select the way you want to split. Under relations you should see Lake Алла-Аккаярви and to the right a download button, a delete button, and button with a square and a dot in the center that highlights the whole lake. Just press the download button and you should be able to split it.

[–] iuvi@lemmy.ca 1 points 3 hours ago

Thanks , i will try it 👍