[Tagging] tree rows vs individual trees

Tom Pfeifer t.pfeifer at computer.org
Sat Feb 9 14:23:17 UTC 2019


On the natural=tree page I stumbled over the phrase:

"Tree rows ... This approach can also be combined with individually mapped trees for further details."

On natural=tree_row I found it was part of the 2010 proposal which said:
"if individual trees in a tree row are mapped, the tree nodes should be part of the tree row way. 
Usually, however, it's not necessary to map the individual trees in a tree row."

In the discussion this was reasoned with:
"...connecting the trees with a way allows renderers to generalize the tree row into a single 
entity, rather than showing each tree separately"

IMHO this violates the one object - one OSM element principle. Either I choose the coarser approach 
to map a way for the row, or I refine it to individual trees, but should not use the row anymore.

If a renderer wants to cluster any trees that can be done algorithmically.

I suggest to remove the idea that tree and tree_row could be combined,
or even declare it should not be done.

tom



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