[Tagging] message=*

[Paul Desgranges]

The idea of the "size <https://wiki.openstreetmap.org/wiki/Key:size>" 
attribute was to provide the length*height*width of the advertising 
device itself (without the support), while the "height" attribute of the 
advertising device gave the total height ("height above ground") of the 
advertising device ("Height" previously had this meaning).

Can we keep the "height 
<https://wiki.openstreetmap.org/wiki/Key:height>" meaning generally 
speaking : "height" is "height of the feature", but have a specific 
meaning of "height" for advertising device : "height above ground" (if 
it is clear and well explained in this context) ? And in that case use 
the "size" attribute to provide the form factor of the advertising device ?

Thanks

Le 06/04/2017 à 19:36, Martin Koppenhoefer a écrit :
>
> 2017-04-06 18:35 GMT+02:00 Paul Desgranges <paul.desgranges at gmail.com 
> <mailto:paul.desgranges at gmail.com>>:
>
>     If "height" is "height of the feature" and not "height above
>     ground", not a problem but how can we store this second height
>     "height above ground" ? For example for an advertising device ,
>     the display surface of the advertising is supported by legs, then
>     we need to distinguish the height of the surface dedicated to the
>     advertising from the height of the device including the support.
>     Classic advertising billboard is 4m width * 3 m height, and is
>     supported on 3 m legs , therefore the total heigth is 6 m.
>
>
>
> yes, we'll need a tag for height above ground. There is min_height, 
> but it seems to require a building for some strange reason, and more 
> strangely, to redefine "height": 
> https://wiki.openstreetmap.org/wiki/Key:min_height
>
> it really is a pity, it is the analogous problem of building:levels 
> which according to the wiki are not indicating the number of building 
> levels but the number of building levels plus some imaginary, non 
> existent building levels. It's really crazy.
>
> Cheers,
> Martin
>
>
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