[Tagging] What is a terrace after all?

Marc Gemis marc.gemis at gmail.com
Wed Sep 12 04:46:06 UTC 2018

> In your case you may have a way with 4 nodes. And you want to divide it
> up into seperate things. OK?
> I put 2 new nodes on the way.
> Then I break the way at these new nodes.
> Then I close the resultant 2 ways (one old but modified and one new) by
> extending both ways to close them.
> This results in
> the old way getting 2 new nodes and loosing 2 old nodes, and
> a new way with 2 old nodes and 2 new nodes.
> Thus all the old things are still there ... but now thee are added
> things to make more detail.

In case you are using JOSM, I recommend installing the utilsplugin2
[1], it has a split area (alt-X) function that speeds up this process.
Also, the terracer plugin [2] will keep some history, since the
original rectangle is turned into one of the new "sub-buildings".

[1] https://wiki.openstreetmap.org/wiki/JOSM/Plugins/utilsplugin2
[2] https://wiki.openstreetmap.org/wiki/JOSM/Plugins/Terracer

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