[Tagging] [OSM-talk] Tagging "wide" steps (tribune / terrace)

M∡rtin Koppenhoefer dieterdreist at gmail.com
Tue Jun 8 15:21:50 BST 2010


2010/6/8 fly <lowflight66 at googlemail.com>:
> Interesting relation.


thanks, it is capable to model a lot more (lanes, road surface without
explicit "inner" borders, detailed barriers with less effort, ...),
but unfortunately I'm not a programmer to prove it could work.


> We need some examples as data to have a look at. Maybe also a rendered example
> would be nice.


current renderengines of OSM won't be able to do this, because the
polygons are not closed (maybe this could be done by simple
preprocessing).


> I still wonder if the render-software will be able to reduces the steps by
> itself. I have a stairway with 12 steps on the left and 7 steps on the right. If
> a tag the top and the bottom and both side with appropriat step_count it should
> fade out five steps going to the right.


no, that will be necessary for you to model/define: you will have to
model 2 stairways: one with 12 and one with 7 steps.


> How do I tag that there are two step to fade on top and three on the bottom ?


this is done by alignment/positioning of the upper and lower borders.


> Would it work to get a whole street in this relation ? With foot- and cycleways,
> seperated direction lanes , barriers in between and maybe some bus lanes ? Or
> would that relation get to big ? If I take a whole motorway and tag it like this.


if it gets too big, simply make several of them, like we do always,
and eventually group them with a "superrelation"


cheers,
Martin




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