On Thu, May 27, 2010 at 7:34 AM, Harald Kucharek <harald.kucha...@gmx.net>wrote:

> I wrote the initial code, some postings about it from October 31st 2006 ff
> should be in the archive of this list. Last time I looked at the code it it
> was heavily rewritten, don't know if it still uses the approach I described
> in my mail.
>

Currently, it finds nodes that are connected by a horizontal way segment and
then applies the average y-coordinate to all of them (same goes for
x-coordinates). This happens in a rotated coordinate system, such that the
segments point approximately in N-S and W-O direction.

Sebastian
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