[josm-dev] JOSM extension for orthogonalizing ways

[Harald Kucharek]

-------- Original-Nachricht --------
> Datum: Fri, 31 Oct 2008 08:28:52 +0100
> Von: Frederik Ramm <frederik at remote.org>
> An: harald.kucharek at gmx.net
> CC: josm-dev at openstreetmap.org
> Betreff: Re: [josm-dev] JOSM extension for orthogonalizing ways

> Hi,
> 
> Harald Kucharek wrote:
> > Now, my question is: Is there interest by the maintainers of JOSM to put
> > my function into JOSM, maybe replacing the current "aligning nodes in a 
> > rectangle" function of JOSM?
> 
> Sure, sounds great. I assume if used on a 5-node way it will roughly do 
> the same as the current align-in-rectangle, right?

Yes. We have different approaches, so results differ slightly. What gives the better result depends on what you want to align and how you expect the outcome. While I use the weighted average of directions as the orientation of the grid, you look for the edge closest to the average and take its orientation. And you use a different approach to orient the other segments.
> 
> I did the align-in-recangle initially, and I have been asked by users 
> whether it would be possible to, instead of have the algorithm compute 
> the general direction, pre-select one edge somehow for all others to 
> follow. I haven't had the time to look into that though, maybe it is 
> something you want to tackle on your next holiday ;-)

In holiday I map. Programming is for the rainy season ;-)
As - if I understand correctly - it is not possible in JOSM to select just a segemt of a way, I only have two sponaneous ideas:
-the collection must also contain two nodes that would establish the direction
-the collection must also contain one way constisting of only two nodes, which would establish the direction
This would also allow to draw a larger "helpline" just for orientation and then align the other objects to it. Then the helpline can be deleted.

> 
> I'll look at the patch and apply it if I don't see a major problem.
> 
> Bye
> Frederik
> 
> -- 
> Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"

Almost neighbours. I live Südstadt, near Werderplatz.

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