[OSM-talk] Tagging and rendering of television masts

[Andy Townsend]

On 21/04/2017 22:56, Andy Mabbett wrote:
> the Sutton Coldfield (England) TV mast:
>
>     https://en.wikipedia.org/wiki/Sutton_Coldfield_transmitting_station
>
> at:
>
>     http://www.opensntreetmap.org/?mlat=37.08321&mlon=-8.13643#map=17/37.0832/-8.1364

That's the one in Portugal, I think?

Sutton Coldfield is at:

https://www.openstreetmap.org/node/6044107

The discussion about how to render things like this in the standard 
style is at 
https://github.com/gravitystorm/openstreetmap-carto/issues/339 (and 
probably other places).

The current tagging (man_made=tower; tower:type=communication) looks OK 
to me.  An alternative might be to do as per Lichfield 
https://www.openstreetmap.org/node/1258302194 
(man_made=communications_tower), which the "standard" style also doesn't 
render.

I currently show them as e.g. 
https://map.atownsend.org.uk/maps/map/map.html#zoom=18&lat=52.600125&lon=-1.833634 
(with a name as well).  One thing that I had given a bit of thought to 
was to have _very_ tall towers appear at lower zoom levels.  It'd 
involve doing a bit of maths in the lua tag transform script, which is 
surely possible, but not something that I've not looked at at all - and 
for Sutton Coldfield it'd need the height tagging as well.

Best Regards,

Andy