[Tagging] tagging single trees

[David Groom]

----- Original Message ----- 
From: "NopMap" <ekkehart at gmx.de>
To: <Tagging at openstreetmap.org>
Sent: Friday, September 10, 2010 4:54 AM
Subject: Re: [Tagging] tagging single trees


>
>
> Hi!
>
>
> M∡rtin Koppenhoefer wrote:
>>
>> so 2 trees are a "cluster"? IMHO that's also agains your own
>> intentions, because 2 trees can be as significant as one. Even three
>> or four. Traditionally, oaks appear in small groups of 3 to 5
>> ("Eichengruppe"). They are mostly landmarks or at least good points
>> for orientation.
>>
>> Why don't you simply tag the landmark trees as landmarks and keep the
>> trees being trees? WIll we have all trees that have at least another
>> tree within 50 metres as "cluster" in our database in the future, i.e.
>> thousands or even millions of them?
>>
>
> Because you only can assume that something probably is a landmark.
>
> But it is a fact that a tree ist not standing alone. I'd rather mark facts
> with a tag.

Maybe I'm missing something in this discussion, but what exactly is so 
important about the fact that the tree is standing alone that it needs to 
specifically be tagged as standing (or not standing) alone?

Many OSM features stand alone, but there has not in the past been a need to 
make any special notice of this, or tag their proximity to the same features 
nearby.

David

>
> And it is a heuristic. Of course it is possible that there may be special
> cases where it is not correct. But if you look at the massive heaps of 
> trees
> they are whole citys mass imported from some data source without further
> tagging, probably none of them are landmarks. So I am content if it is 
> only
> 99% correct.
>
> If you want to oppose this approach, please show me a few 100 examples 
> where
> it went awry. A debate only makes sense if the debate does not take more
> time than fixing the exceptions. And it does not make sense at all if the
> problems are only theoretical.
>
> bye
>               Nop
>
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>