id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
18031	Complain about natural=rock used for large areas and suggest natural=bare_rock instead	mkoniecz	team	"==== What steps will reproduce the problem?
1. Create large closed way to represent rock surface (like https://www.openstreetmap.org/way/32639987 or https://www.openstreetmap.org/way/375390567 ) and tag it with `natural=rock`
2. Run validator

==== What is the expected result?
Validator suggest using `natural=bare_rock` instead

==== What happens instead?
Nothing

==== Please provide any additional information below. Attach a screenshot if possible.
I am not sure what would the largest rock that is ""notable rock feature or small group of rocks, attached to the underlying bedrock"" but if this idea is in principle accepted I may research it.

OSM Wiki claims that

> natural=rock describes a notable rock feature or small group of rocks, attached to the underlying bedrock, mainly as a single node element.

> On the contrary, single boulders not attached to the bedrock are better tagged as natural=stone.

> For larger bedrock areas you may use natural=bare_rock. 

https://wiki.openstreetmap.org/wiki/Tag:natural%3Drock

Triggered by https://github.com/gravitystorm/openstreetmap-carto/pull/3832

{{{
URL:https://josm.openstreetmap.de/svn/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2019-08-11 22:00:20 +0200 (Sun, 11 Aug 2019)
Build-Date:2019-08-12 01:30:56
Revision:15296
Relative:URL: ^/trunk

Identification: JOSM/1.5 (15296 en) Linux Ubuntu 16.04.6 LTS
Memory Usage: 442 MB / 869 MB (105 MB allocated, but free)
Java version: 1.8.0_201-b09, Oracle Corporation, Java HotSpot(TM) 64-Bit Server VM
Screen: :0.0 1920x1080
Maximum Screen Size: 1920x1080
libcommons-logging-java: libcommons-logging-java:all-1.2-1+build1
fonts-noto: fonts-noto:-
Dataset consistency test: No problems found

Plugins:
+ OpeningHoursEditor (34977)
+ PicLayer (35030)
+ buildings_tools (34982)
+ continuosDownload (82)
+ ejml (35049)
+ geotools (34908)
+ imagery_offset_db (34908)
+ jts (35064)
+ log4j (34908)
+ measurement (35051)
+ reverter (35084)
+ todo (30306)

Validator rules:
+ ${HOME}/Documents/install_moje/OSM software/josm/data/validator/deprecated.mapcss
+ ${HOME}/Documents/install_moje/OSM software/josm/data/validator/unnecessary.mapcss
+ ${HOME}/Documents/install_moje/OSM software/josm/data/validator/combinations.mapcss

Last errors/warnings:
- W: No configuration settings found.  Using hardcoded default values for all pools.
}}}
"	enhancement	new	normal		Core validator			template_report natural bare rock