[Routing] default-sizes for city/town/village/...

[Marcus Wolschon]

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Eddy Petrișor schrieb:
> 2009/3/27 Eddy Petrișor <eddy.petrisor at gmail.com>:
>> 2009/3/27  <marcus.wolschon at googlemail.com>:
>>> * Is there a way to use is_in or other hints to make this more
>>> accurate?
>> how about extending the bounding box to
>>
>> Xdelta = max (DEFAULT_*_SIZE, max(abs (Cx - Pix) | for every i
>> node)) Ydelta = max (DEFAULT_*_SIZE, max(abs (Cy - Piy) | for
>> every i node))
>>
>> Where: - (Cx, Cy) is the origin of the place and - (Pnx, Pny) is
>> the position of n-th node that contains place's name in the is_in
>>  value*.
>
> Note that you should consider every node of each way that has
> contains place's name in is_in. Considering only the ends of the
> way is not correct since for a curved way the nodes in the middle
> might be more outwards than the ends.

Indeed I could do that while building the  Address-Database.
It would never shrink the place if an updated node with a
changed location comes in  but that should nave little effect.

In don`t think it will change much as is_in is practically
unused.
It would also slow down map-imports even more
as for every node and way with an is_in or is_in:city
I need to do a name-normalisatio and "where name like"
- -lookup in the HSQLDB.
Loading all nodes of an incomming way should not slow
down things as they get loaded anyway to set their
back-references to the ways that use them and nodes
are stored in a memory-sensitive cache when being loaded.

But still a good idea. It may help in seldom cases

Marcus
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