[Tagging] Draft Proposed Relationship Area Steps

Paul Johnson baloo at ursamundi.org
Fri Mar 6 11:15:18 UTC 2015


Martin, could we get an example of what you're proposing at Pioneer
Courthouse Square <http://mapq.st/1wZZKPG>?  Portland's central transit hub
and main square seems like it would be a suitably complex use scenario that
would make all other examples simpler.

On Thu, Mar 5, 2015 at 5:40 AM, Martin Koppenhoefer <dieterdreist at gmail.com>
wrote:

>
> 2015-03-05 12:29 GMT+01:00 Janko Mihelić <janjko at gmail.com>:
>
>> I'm pretty sure you don't need relations to define wide steps. All you
>> need is an area (area:highway=steps) and one or more ways that connect the
>> bottom and the top (we can decide if the direction of ways sets what is up,
>> or incline=up). Just set the step_count=* tag, and you're good to go.
>>
>
>
> -0.3, for simple cases (those currently defined by the relation) you're
> right that it could be done without a relation, but not with an area, you'd
> have to use 3 ways, one upper, one lower, one connecting. If you use an
> area, you won't know where the steps run and where they don't (save maybe
> the simplest case of an area out of just 4 nodes).
>
>
>
>>
>> In case of more complicated steps, you can add a new tag,
>> step_count:left=* and step_count:right=*, and put those ways on the
>> dividing line, where you have a different number of steps on the left and
>> on the right.
>>
>
>
> -1, this doesn't seem to work. I also can't imagine a situation where this
> would occur actually, looks like a problem in the modelling (lower / upper
> way not modelled correctly). Steps not being there is all a question where
> you see the lateral boundary. Or maybe I am getting this wrong, can you
> point to a real world example?
>
>
>
>>
>> That would be much simpler for everyone, from mappers to data consumers.
>
>
>
> -1, I doubt it would be _much_ simpler, actually you'd have to draw more
> ways and at least the same amount of tags. For data consumers it also seems
> to be more complicated.
>
> Cheers,
> Martin
>
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