natural=* covered by freshwater or oceans treated inconsistently?

[ghost]

works nicely:
https://www.openstreetmap.org/way/336816028#map=17/46.18740/8.75470
there is bare rock on both sides of the rivers and also underwater. The rendering is fine.

The same does not appear to work for natural=bare_rock which is across natural=coastline
and partly underwater - the whole area is rendered as rock and water is not shown
in that place.

What is right? Should we use something like natural=underwater:bare_rock ? Could
the rendering be made consistent whether the water is natural=water or natural=coastline?

[matkoniecz]

I would expect that rock areas under ocean/seas would not be tagged as natural=bare_rock, but http://wiki.openstreetmap.org/wiki/Tag%3Anatural%3Dbare_rock is not making it explicit.

Could the rendering be made consistent whether the water is natural=water or natural=coastline?

The problem is that ocean/seas are not rendered - at start everything is water, then land areas are painted over blue background. Then landcovers are rendered, with small water areas rendered on top.

It seems that this issue fits rather wiki/tagging mailing list - see my proposal on http://wiki.openstreetmap.org/wiki/Talk:Tag:natural%3Dbare_rock (please, continue discussion about how things should be tagged there, not on this bugtracker),

[ghost]

I have already asked the mailing list some time ago
http://permalink.gmane.org/gmane.comp.gis.openstreetmap.tagging/23465

Fact is, there is an inconsistency between oceans and lakes/rivers in carto. Can that
be fixed? Should that be documented as unfixable?

[matkoniecz]

Should that be documented as unfixable?

I think #426 is good enough for that purpose.

[matkoniecz]

See also #115 for very similar problem, but with reporter expecting opposite handling of natural=* key.

[ghost]

there is also natural=cliff which is rendered across rivers and ought to be, otherwise waterfall rendering would be pretty bad (nonexistent)..

Otoh for features like natural=wood, landuse=forest or natural=bare_rock it seems like a terrible fate to have to split them at every stream/riverbank.

So if needed for consistency it would be easier to add/honour a special tag for waterfall cliffs than dealing with forests being split at every creek.

[matkoniecz]

Creeks are not a problem as these are mapped as lines, not as areas (water as lines is displayed after various areas).

[ghost]

The areas do not seem to be a problem either.. afaics it just works. It would be even stranger to differentiate between plain rivers (lines) and rivers with riverbanks (areas).

[ghost]

Another somewhat related discussion http://wiki.openstreetmap.org/wiki/User_talk:RicoZ#Water_level_-_Over.2CUnder.2CIn_Between...

[jeisenbe]

This will be solved by #3738, I believe.

[jeisenbe]

The issue with bare_rock in particular is also solved by #3851

[jeisenbe]

Since #3738 natural=water, waterway=riverbank and the oceans (areas outside of the coastline) are rendered together, above the landcover layer, so the original issue is fixed