This is a static archive of our old OpenStreetMap Help Site. Please post any new questions and answers at community.osm.org.

Hole or island

0

Is a hole in a multipolygon representing a lake (or river section) an island or just an empty space in that water object?

asked 29 Sep '16, 19:12

sanser's gravatar image

sanser
695383955
accept rate: 5%

2

What is an empty space in a water object? Can you show us an example of a multipolygon you are unsure about?

(29 Sep '16, 20:51) scai ♦

One Answer:

1

It's a dry space ;-)
Additional tags like place=island/islet are optional, not mandatory. This makes no real difference, just avoids possible confusion for later editors.
All holes you stamp into a multipolygon area are completely free space again, just like the space outside that MP.

answered 04 Oct '16, 22:55

wycbtma's gravatar image

wycbtma
1163
accept rate: 33%

Thanks. Exactly what I have expected.

(05 Oct '16, 20:11) sanser

Source code available on GitHub .