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How do I map an island in a lake using iD and the multipolygon tag?

I am asking with reference to this other question (islands-in-lakes-not-showing), I found it would not render an island because it did not have a mutipolygon tag. I fixed it with Potlatch2. The original questioner is new and using iD. I tried iD to find out how but no luck.

asked 19 May '13, 08:47

andy%20mackey's gravatar image

andy mackey
accept rate: 4%

edited 25 Aug '14, 21:22

aseerel4c26's gravatar image

aseerel4c26 ♦


Although the "iD cannot handle relations so far" answer was 100% correct at the time, it now can (sort-of) handle multipolygon relations.

Here's what I think you need to do:

  1. Add the area for the outer (the lake in your case) and tag it as a lake
  2. Add the area for the inner. You don't need to add any tags here.
  3. shift-select both.
  4. The radial menu should have a "+" on that ("merge", keyboard shortcut C). Press that. You should have created a multipolygon.
  5. Of course, save, if you are satisfied.

One that I created on the test server using this method is here:

(it won't render because it's on the test server).

The method above does leave an "area=yes" tag on the inner which, while not wrong, is unnecessary. There may also be a better way to do it - I don't know because unfortunately there's no help in iD worthy of the name and wiki documentation is sadly lacking (I suspect most wiki editors are JOSM users). I did raise this, but the iD authors' priorities are elsewhere.

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answered 18 Jun '14, 23:31

SomeoneElse's gravatar image

SomeoneElse ♦
accept rate: 16%

edited 25 Aug '14, 21:19

aseerel4c26's gravatar image

aseerel4c26 ♦

As far as I know iD cannot handle relations so far.

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answered 19 May '13, 09:10

malenki's gravatar image

accept rate: 6%

edited 20 May '13, 02:21

aseerel4c26's gravatar image

aseerel4c26 ♦


Seems so, yes. Relation editing is planned for version 1.1 (we now have 1.0.1) (see roadmap for version 1.1 and iD issue list).

(19 May '13, 20:31) aseerel4c26 ♦

Thanks for info guys. I will try out iD some more as it seems quite good. I will tic an answer to "relations" when it is implemented.

(19 May '13, 23:39) andy mackey

@andy mackey: the 1.1 beta is released for testing. You can try now.

(07 Jun '13, 22:17) aseerel4c26 ♦

thabks i'll try it in a day or so

(07 Jun '13, 23:26) andy mackey

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question asked: 19 May '13, 08:47

question was seen: 8,607 times

last updated: 25 Aug '14, 21:22

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