NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum

I am updating an area I mapped a few years ago (thank to a recent and accurate Esri World Imagery). On multiple occasions I found that multipolygons I created were converted into simple features (areas), duplicating all their ways.

The comments of the changesets in which they were replaced often refer to “OSM InspectorAreas ring_not_closed”. Since I always check my polygons using JOSM. I wonder if… - Is there a conflict/problem between OSM InspectorAreas and JOSM? - If I forgot to checked OSM, should I have expected the rings being closed in the multipolygon instead of having all those lines duplicated?

The most recent example is changeset 92270556 where I remember having created multipolygons for a group of natural=wood, natural=scrub, natural=water and landuse=commercial.

thank you to enlighten me

asked 16 Dec '20, 23:21

jfd553's gravatar image

jfd553
389202332
accept rate: 0%


I've seen the same thing happen near me, done by the same contributor.

I think what's happening is someone makes a change that breaks a multipolygon, such as inadvertently deleting a way or otherwise disrupting the geometry. Then, kartler175 comes along and changes the multipolygon's outer way to a single closed way, rather than actually fixing the multipolygon.

So, in the end, what's happening is that a contributor is trying to be helpful, but going about it in a less-than-ideal way.

permanent link

answered 17 Dec '20, 18:25

alester's gravatar image

alester
6.6k266100
accept rate: 28%

Thank, it's entirely possible, but since the contributor didn't respond to my comment (on the changeset), I wondered if there was a rule I didn't know about multipolygons, or if there were any known issues with JOSM or OSM Inspector.

(17 Dec '20, 18:47) jfd553
1

FWIW, they have replied to some changeset discussion comments. If it looks like they need a nudge to reply to more, ask the DWG to help (mail data@osmfoundation.org ).

(19 Dec '20, 22:54) SomeoneElse ♦

Follow this question

By Email:

Once you sign in you will be able to subscribe for any updates here

By RSS:

Answers

Answers and Comments

Markdown Basics

  • *italic* or _italic_
  • **bold** or __bold__
  • link:[text](http://url.com/ "title")
  • image?![alt text](/path/img.jpg "title")
  • numbered list: 1. Foo 2. Bar
  • to add a line break simply add two spaces to where you would like the new line to be.
  • basic HTML tags are also supported

Question tags:

×622
×132
×22
×1

question asked: 16 Dec '20, 23:21

question was seen: 1,310 times

last updated: 19 Dec '20, 22:54

NOTICE: help.openstreetmap.org is no longer in use from 1st March 2024. Please use the OpenStreetMap Community Forum