[Tagging] landuse=farmland and highway=track

Gerd Petermann gpetermann_muenchen at hotmail.com
Sun Jan 10 10:48:13 UTC 2016


Warin wrote
> On 10/01/2016 8:55 PM, Gerd Petermann wrote:
>> Dave Swarthout wrote
>>> Haha, welcome to the club. This is a problem everyone faces. Here in
>>> Thailand I spend a lot of time breaking up large wood multipolygons
>>> because
>>> in the early days folks did not take the time to do it right. Woods do
>>> not
>>> cover highways (unless its a farm track) nor do they cover water
>>> features
>>> like river valleys or reservoirs. I can tell you this, it's a lot of
>>> work
>>> either way you decide to do it but future mappers will thank you if you
>>> do
>>> it properly in the first place.
>> Oh, yes, I also have that problem with natural=wood polygons, often
>> containing
>> nearly 2000 nodes and typically completely wrong (according to the
>> ortorectified GSI images),
>> covering large parts of residential areas, farmland, water, and so on.
>> In my eyes landuse or natural polygons should never be that
>> complex, when I create one with more than 100 nodes I start
>> feeling uncomfortable.
> 
> :-D      Come to Australia...
> 
> Stuart national Park covers over 340,000 hectares .. most of its
> boundaries are orthogonal though..
> 
> Kosciuszko National Park covers about 690,000 hectares (1.5 million aces)
> ... has a very crinkly boundary!

OK, wood is probably much more complex, but the subject is about farmland.
I guess whenever machines (tractors etc.) are used on it the shapes will be
rather simple.

Gerd




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