[Tagging] Reviving the path discussion - the increasing importance of trails in OSM

[Peter Elderson]

Tomas Straupis:

> 2020-05-23, št, 04:51 Jarek Piórkowski rašė:
> > See also: not rendering roads or hamlets in very sparsely populated
> > areas because we have one map style which needs to accommodate central
> > European densities.



>   OSM-Carto is a very well done DATA VISUALISATION. It is not a
> cartography. What you're asking cannot be done with only tagging as
> you will have ways which look exactly the same but will have to be
> removed in one place and will remain in the map in another place. What
> you're asking is accomplished in CARTOGRAPHY by "road network
> pruning". It checks density/class of roads and removes minor ones at
> the places of high density. It is one of cartographic generalisation
> functions. All important generalisation functions take additional
> heavy pre-processing and that is probably a reason why OpenStreetMap
> does not have any Cartography projects yet.
>
> Very well put! If I understand correctly, to do this without heavy
pre-processing, the information would have to be in the tags?
Would it have to be in the tags of every individual way, or would a tag on
an encompassing area (e.g. landuse=residential) be sufficient?



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