[josm-dev] Relation member sort cleanup

[Christiaan Welvaart]

On Thu, 9 Jul 2009, Dirk Stöcker wrote:

> On Thu, 9 Jul 2009, Christiaan Welvaart wrote:
>
>>>>  It was mentioned that the sort feature is not really useful. Why is
>>>>  that, and
>>>>  how could it be made (more) useful?
>>>
>>>  I should have been more verbose. I did not deep-analyse the mechanism but
>>>  it seems you only sort the first block of ways. This does not work for
>>>  splintered relations.
>>
>> Sure, that is a limitation of this simple feature. But I do not see how one
>> could sort a branched two-way route relation into a linear list.
>
> Not branched two-way. Unfinished single way. This will consist of multiple
> snippets which are unconnected, but should be connected by the ways
> inbetween. The sort function should leave a sorting, which makes fixing
> remaining bugs much easier than it is now.
>
> So the general tasks is to leave as many connected parts as possible (i.e.
> minimize unconnected parts).

I partially implemented this, see ticket 2941. The new code tries to 
connect everything, but it does not explicitly try to minimize the number 
of disconnected groups, so it may not be optimal in that respect. Also, 
the distance between groups is not yet used to sort the groups.


     Christiaan