[Talk-us] Islands in Lakes/Rivers

[Eric Brelsford]

Hi Ian,

In situations like this, I make a node on the outer coast with a way that
goes to and around the island (in the correct direction, of course), then
returns to the node on the coast.  You're left with a body of water with a
hole in it.

It might help to see an example:

http://www.openstreetmap.org/?lat=40.65975&lon=-73.96746&zoom=15&layers=B0FT

I know it seems *slightly* hacky, but I've seen it recommended on the main
list, too.


eric

Date: Thu, 28 Feb 2008 07:48:38 -0600
> From: "Ian Dees" <ian.dees at gmail.com>
> Subject: [Talk-us] Islands in Lakes/Rivers
> To: talk-us at openstreetmap.org
> Message-ID:
>        <3baad6b80802280548hfd637c1u114553aac90001c0 at mail.gmail.com>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi list,
>
> I've been casually working on the Minneapolis area, and one of the
> problems
> I keep running in to is how to tag islands in the Mississippi river so
> that
> they come out as land in the tiles and not more water. Take a peek at the
> following area:
>
>
> http://www.openstreetmap.org/?lat=44.98754&lon=-93.26285&zoom=17&layers=0BFT
>
> The view is centered on Nicollet Island, which should be rendered as a
> land
> mass, not water. The island's perimeter follows the "water to the right"
> rule and is tagged as follows:
> natural = coastline
> waterway = riverbank
>
> The surrounding river also follows the "water to the right" rule and is
> tagged as follows:
> natural = waterway
> waterway = riverbank
>
> What do I need to modify so that the island shows up correctly?
>
> Thanks,
> Ian
>
>
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