[Tagging] RENDER

Peter Wendorff wendorff at uni-paderborn.de
Fri Aug 15 14:31:27 UTC 2014


not a good idea IMHO.
1) what is the feature this tag should refer to? Consider a polygon that
is tagged as a building (building=yes) and a shop (shop=supermarked) and
a Walmart (operator=WalMart), and the mapper added RENDER=blue. What is
it that should be rendered blue? This object? Any supermarket? any
Walmart? Any building? How should any rendering decide if the default
rendering should be used or the one defined by the tag you propose?
2) I want to get Walmarts shown on the map in a different color, thus
all Walmarts I want to see in the map get
RENDER={mycolor-which-is-not-used-yet-in-the-zoomlevel-I'm-interested-in}.
Now the stylesheet maintainer uses that color for another object -
conflict, damn, fail.
3) I want to get Walmarts rendered pink on osm-carto, green on HOT,
orange on the cyclemap - what should go to the render-tag (even if the
styles would follow your proposal?

The only benefit I see in this proposal is just what you said: people
would stop tagging stuff just to get their map to display it the way
they want; but how do you ensure they don't tag stuff to be rendered
with the same style? How do you ensure the map stays usable?

regards
Peter

Am 15.08.2014 um 16:12 schrieb André Pirard:
> Hi,
> 
> It's a well known fact that many people complain to tag in vain because
> what they tag doesn't show on the map (e.g. mini-golf vs tennis pitch),
> because they're told to open a rendering ticket which replies that only
> official tags are supported, and because they open a vote for an
> official tag and nobody signs.
> As a result they are accused of "tagging for the renderer" instead of
> 'being forced to tag for the renderer".
> 
> The solution is simple however.  A RENDER tag that, typically, would
> assign a color to an area.
> I'll let the rendering specialists define what else it can do.
> ⚠ ⚠ ⚠ RENDER only requests *by default* rendering.
> As soon as rendering is defined for an element, it is used instead and
> RENDER is normally ignored.
> 
> For a better map,
> 
> André.
> 
> 
> 
> 
> 
> 
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