[talk-au] Tagging for the router
rory at technomancy.org
Tue Sep 6 10:57:00 UTC 2016
On 31/08/16 13:44, Andrew Davidson wrote:
> Turn restrictions are, after all, entirely tagging for the router (it's
> not like they get rendered on the map).
"Tagging for the renderer" (similar to "tagging for the router") is a
bad thing when people add _incorrect_ data in order to get it to show up
nicely on the map.
If the playground at a local school had a red tarmac play area, and you
map it as building=industrial because that gets the correct reddish
colour, *thats* tagging for the renderer. You've added bad data so that
you could get a nice map. Instead you should change the renderer
In this case, if you're not legally allowed to make that u turn, then
adding a no_u_turn restriction isn't *incorrect*. Perhaps routers should
know about all the local restrictions, or deduce it from the geometry,
but adding such a turn restriction isn't added incorrect data.
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