On 20.03.2012 20:46, John F. Eldredge wrote:
ThomasB<[email protected]> wrote:
I am wondering how a way with only one node can exist in the database.
I have
deleted it but how many still exist?
http://www.openstreetmap.org/browse/way/154820504/history
Since it takes at least two points to define a line, a way with only one node
would be zero units long, and effectively nonexistent.
The API has not problem with ways having only a single node. Also having
the same node multiple times is no problem from the point of the API.
Some editors create these ways. The most prominent one is Potlatch. The
Ticket is open since two years. xybot trys to correct some of the
problems until a bugfix is made in potlatch.
https://trac.openstreetmap.org/ticket/2501
We had the topic a while ago on the german list:
http://lists.openstreetmap.org/pipermail/talk-de/2012-March/093681.html
A much longer while ago I had deleted all ways having no nodes at all.
Not sure if more of them exist now.
Stephan
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