[OSM-talk] Coasline error checker

[David Groom]

----- Original Message ----- 
From: "Martijn van Oosterhout" <kleptog at gmail.com>
To: "David Groom" <reviews at pacific-rim.net>
Cc: <talk at openstreetmap.org>
Sent: Monday, January 07, 2008 9:21 AM
Subject: Re: [OSM-talk] Coasline error checker


> On Jan 6, 2008 3:11 PM, Martijn van Oosterhout <kleptog at gmail.com> wrote:
>> There were quite a lot of changes, this one seems to have been for the
>> worse. I'll see if I can find the problem...
>
> Right, it turns out the system thought the islands contained
> themselves. As usual once the problem is determined the solution is
> obvious.
>
> I think the direction checker has reached a point where it's probably
> possible to programmatically invert any islands it has determined are
> the wrong way round.

I think it still gets it wrong a few times and highlight errors in islands 
in the sea when there is no error, see

http://tile.openstreetmap.nl/coastlines.html?lat=20.777844319065146&lon=58.738776835953225&zoom=16

I could point to a few more as well. But in general the script is working 
very well nad is really usefull.

David


> The case where it's really going to do the wrong
> thing is where people have turned a section of coastline into
> waterway=riverbank, but forgot to change the islands in the river.
> "Fixing" it in that case will turn them into lakes. I don't think
> there is all that much we can do about that...
>
> Have a nice day,
> -- 
> Martijn van Oosterhout <kleptog at gmail.com> http://svana.org/kleptog/
>