[Tagging] tagging single trees
John F. Eldredge
john at jfeldredge.com
Tue Sep 7 13:38:23 BST 2010
It seems reasonable to me that a node simply tagged as a tree, with no other information, could be single or not-single, a landmark or not a landmark. If the mapper wants to convey additional information about a particular tree, this should be done with additional tags. Incidentally, "urban tree" does not necessarily imply "no other trees nearby". For example, Nashville, Tennessee, USA, where I live, is a city of over 600,000 people. It also contains tens of thousands of trees, the vast majority of which have other trees within 50 meters, and therefore wouldn't be classed as single trees, using the German definition.
Subject :Re: [Tagging] tagging single trees
From :mailto:emacsen at gmail.com
Date :Tue Sep 07 06:03:56 America/Chicago 2010
On Mon, Sep 6, 2010 at 2:55 PM, NopMap <ekkehart at gmx.de> wrote:
> That is not a solution. For 4 years people have done valid tagging, using
> the definition in the wiki for significant trees. If you change the meaning,
> no denotation=landmark will magically appear there, so the information gets
As Richard points out, the information is already lost due to ambiguity.
> I have done a statistical analysis of the distribution of tree nodes in
> Germany. The result indicates that 4585 trees are actually single trees.
> (They don't have another tree within 50m). That makes about 15.8 %. Assuming
> the same rate globally, you'd throw away the information for about 59000
> nodes that actually describe a lone and significant tree.
That's just Germany. What about the rest of the world?
From here on, in other mails, you use the German numbers as if they're
the only numbers.
It doesn't seem anyone's mind is being changed at this point, so I'd
like to second Martin's suggestion that we move to the voting phase.
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John F. Eldredge -- john at jfeldredge.com
"Reserve your right to think, for even to think wrongly is better than not to think at all." -- Hypatia of Alexandria
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