[Tagging] tagging the multipolygon model (was landuse and military)

Martin Koppenhoefer dieterdreist at gmail.com
Fri Oct 16 11:36:02 BST 2009

2009/10/15 Ben Laenen <benlaenen at gmail.com>:
> Anthony wrote:
>> The problem with the landuse tag is it's being used for multiple
>> things.  On one hand, it's being used to describe what the land is
>> being used for - if people are using the land as their residence, the
>> land is tagged landuse=residential.  On the other hand, it's being
>> used to describe what sorts of things are present on the land - if
>> there are lots of trees, it's being tagged landuse=forest.

> The only way I see we can solve all this is to get a new tag which is
> exclusively used for ground cover. Such a tag would then stop having all
> ambiguity, and stop all discussions like "is a lake in a wood part of the wood
> or not?".

+1, I agree. Inside a landuse=residential we could than map the
different surfaces. I'd suggest to use the key surface for the
ground-cover, or is there a problem with it?

> But it's not the easiest option of course and has practical problems:
> * so what will we do with the current tags?

they will obviously remain where and what they are. Don't see a problem here.

> * and how could renderers still be able to make sense of all of it to render
> something nice?

they will have to decide, what to render, as they are already doing.
They could also decide according to zoom-level, which would be the
right decision (and detail) to show.

> * it probably needs professional input to get a good list of all different
> kinds of ground cover

or some time to let it develop.


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