[OSM-talk] Creating a multipolygon encompassing Black Sea

Andrew Hain andrewhainosm at hotmail.co.uk
Sun Jun 20 10:37:40 UTC 2021


I assume that someone in your position would never stoop so low as to threaten to vandalise the map and that therefore that clearly isn’t what your message means.

--
Andrew
________________________________
From: Frederik Ramm <frederik at remote.org>
Sent: 19 June 2021 21:03
To: talk at openstreetmap.org <talk at openstreetmap.org>
Subject: Re: [OSM-talk] Creating a multipolygon encompassing Black Sea

Hi,

On 6/19/21 17:51, mappinglander wrote:
> I actually thought about creating a multipolygon for Black Sea, for
> helping to data consumers and therefore visualizing more easily by
> creating a multipolygon for Black Sea, which is currently tagged as a
> node at https://www.openstreetmap.org/node/7015642404
> <https://www.openstreetmap.org/node/7015642404>

Don't do it. I generally replace such giant sea polygons with nodes when
I find them. They make editing unnecessarily difficult for anyone
editing along the coast - any split in the coastline creates a new
version of a giant, several-thousand-member polygon.

The OSM carto style currently has a shortcoming in that large water
polygons get a nice large label whereas points describing a large water
body don't. This should be sorted out in rendering, and should not lead
people to create giant multipolygons.

Bye
Frederik

--
Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"

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