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Is there an instruction on what not to put in a multipolygon relation?

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I use OSM-Inspector:multipolygon to check my inputs and correct accordingly.

While doing so I also correct other contributions if I think I can improve/correct them. Sometimes I find some very complex geometrical structures that, in my opinion, show that either I or some other contributors do not fully understand the multipolygon construct.

I have read and reread the help pages on this issue but nowhere could I find a list of objects that should not be considered as holes within a multipolygon. I have found buildings=, leisure=, sport=, etc. defined as "inner". I thought these objects are to be excluded from the multipolygon relation. NOTE: For example OSM-Inspector does not find buildings defined as "inner" to be an error!

So are the instructions clearly written, i.e. I missed them! My mistake: Sorry: Bad question!

Or should the instructions include a list of objects that are not to be part of an multipolygon area!

asked 14 Apr '12, 09:39

dcp's gravatar image

dcp
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accept rate: 0%


One Answer:

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There is no such instruction; this is usually left to the mapper's judgement.

See "House in the forest" for an answer to a similar question.

answered 14 Apr '12, 09:43

Frederik%20Ramm's gravatar image

Frederik Ramm ♦
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accept rate: 23%

Wouldn't it be desirable to have such instructions that would, I think, improve standardization.

(14 Apr '12, 14:39) dcp

Source code available on GitHub .