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Ben_on_Lemmy@lemmy.ml

What are the edits like this, and what do they mean? (lemmy.dbzer0.com)

submitted 1 year ago by Tippon@lemmy.dbzer0.com to c/openstreetmap@lemmy.ml

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I've just opened the OSM site on my PC to have a look at the history in my area, and I've seen this apparently massive edit. It covers most of the US, a lot of Canada, and a significant chunk of Europe and the UK.

wheelmap_visitor says that 'This is a proxy user for all wheelchair tag changes happening on Wheelmap by anonymous users of the website and app Wheelmap.org.' so does this mean that if someone has made edits to areas inside the rectangle at some point recently that they all get included in this edit?

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[–] beejjorgensen@lemmy.sdf.org 4 points 1 year ago (1 children)

The rectangle is the bounding box for all the edits in that changeset. What I'm guessing happens here is that wheelmap.org bundles a bunch of random edits from global users into a single changeset and then submits it. Since its users are from random places around the globe, it's likely the bounding boxes are going to be large.

But just because the bounding box is physically large doesn't mean the edits are large. For example, a single edit near Los Angeles coupled with a single edit near Copenhagen would produce the bounding box in your screenshot.

[–] Tippon@lemmy.dbzer0.com 1 points 1 year ago

I thought it might be something like that. Thanks for clarifying :)

[–] Voyager@psychedelia.ink 3 points 1 year ago

Look at the list of ways and nodes on the left panel. They edited some features on one side of the map, and without commiting the changes, started editing somewhere really far away. Then both changes ended in a single changeset which tries to border around the edited features.

https://wiki.openstreetmap.org/wiki/Changeset

[–] andyli@lemmy.world 1 points 1 year ago

This is a longstanding issue that wheelmap knew and promised to solve.

Some info from the OSM talk mailing list.