[Talk-ee] Administrative division

[Jaak Laineste]

> > Anyway, one of the issues (even looking at them takes a while) in the
> > area errors file seems to stem from incorrect node selection for
> > merging
> > -- I've got no clue how this can happen. Seems like a spike between
> > two nodes close to each other. This might even be detectable in a
> script.
> > For each way check the sequence of nodes. If node n is much closer to
> > node n+2 than to node n+1, then delete node n+1 from the sequence.
> >
> > Okay ... as usual I gave it a try and hacked some proof of concept
> ...
> > http://andre.grueneberg.de/osm/remove_spikes.pl ... at least it's
> > removing 3543 "suspicious nodes" ...
> > But maybe I'm totally off the track ...
> 

I did not try your removal script yet, but I made some samples of different
spike cases what I've spotted. The easy one is also most common, but also 2
polygons involved happens in maybe 20% of cases. Island case is quite rare.

/Jaak
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