[OSM-talk] Proposed Relations

[Karl Newman]

On Mon, Nov 3, 2008 at 4:34 PM, Frederik Ramm <frederik at remote.org> wrote:

> Hi,
>
> Shaun McDonald wrote:
> > Relations are unordered. You could load the relation and all the ways
> > referenced by it, then check to see if each way has another way that has
> > the same start and end nodes, through a process of stitching.
>
> 1. Shaun is right BUT
>
> 2. I want relations to become ordered and will try to sneak this into
> API 0.6; there will be no noticeable change for any API client, just
> that it so happens that things are returned in the order you put them
> in, rather than in any order. The rationale behind that is that people
> start (ab)using the role attribute for that (e.g. a bus route with nodes
> that have the roles "stop1", "stop2", "stop3" etc.), which of course is
> a pain to modify.
>

If you're sneaking relation changes into the API, could you also allow a
member to be repeated? This would be useful in describing a prohibited
U-turn on a single carriageway. The same way would need to be in both the
"from" and "to" roles, which I believe is currently prohibited.

Karl
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