[OSM-dev] surveillance cams not shown in any render

Shaun McDonald shaun at shaunmcdonald.me.uk
Fri Dec 12 13:53:50 GMT 2008

On 12 Dec 2008, at 13:03, Eddy Petrișor wrote:

> 2008/12/11 Shaun McDonald <shaun at shaunmcdonald.me.uk>:
>> On 11 Dec 2008, at 19:48, Ulf Lamping wrote:
>>> Eddy Petrișor schrieb:
>>>> Solution 1: add an extra tag traffic which can be "yes" for such  
>>>> cameras
>>>> Solution 2: new value for man_made:   
>>>> man_made="traffic_surveillance"
>>>> for such cameras
>>> Solution 3: Use highway=speed_camera which is already used ~500  
>>> times
>>> and also will show up at least in JOSM.
>> Real solution: use a custom rendering of the map data:
>> http://osm.vdska.de/
> Why would I prefer to use a custom rendering instead of clarifying the
> tags, usage and quirks and push for rendering support in Mapnik and
> Osmarender?

There is a limit to the amount that you can render on the map. This is  
what I would call a specialised feature, thus shouldn't be on a  
general map that Mapnik and Osmarender are. There are many things that  
the cycle map renders, which Mapnik and Osmarender don't render, for  
example national cycle routes and bicycle parking.

In the future there will be more specialised maps out there, rather  
than cramming so much information on the one map, that you can't read  
or know what all the symbols mean.


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