[Tagging] As the crow flies

Jo winfixit at gmail.com
Sat Feb 23 19:21:01 UTC 2013

2013/2/23 Peter Wendorff <wendorff at uni-paderborn.de>

> Am 23.02.2013 20:02, schrieb Jo:
>  It seems that you would like a specific role, which you can add to 2
>> members of a route relation (I'd add it to the two ways around your
>> imaginary gap).
>> If you do it that way, you don't need a non-existing member. And you
>> don't need to add nodes to a relation which consists of ways.
> -1
> 1) If you do it like that and any validation finds gaps on both ends of a
> member way with this role, it's impossible to say which one is intentional
> and which is not (or if both are intentional).
> 2) using the role for this creates conflicts if e.g. the way in fact has
> already a role like forward or backward for example.


>  This doesn't just have implications for the validator, but it also might
>> involve changing the code which sorts the member ways.
> right. but currently nodes aren't sorted anyway at least in JOSM, so
> that's a basic problem that should be solved, I think.

I work with routes a lot and to keep my sanity, I always sort them to find
out whether they are continuous. That's why I didn't think of it that they
don't necessarily have to be sorted to be valid routes.

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