[Tilesathome] Z12 rendering artifact of river / riverbank

[Patrick Kilian]

Hi,

> Take a very close look at the river going from the brige at "Mission" 
> eastbound and you'll see a small "river" within the "riverbank" with a 
> border in grey.
> But westbound the small river is gone.
> If you look at the tags you'll find that the western part has an 
> additional "natural=water" tag which is not correct in my point of view.
> The eastern part is tagged correctly imho.
> It's also interesting that the small "river" is _not_present_ in zoom 
> levels >=13.
> 
> Another thing you can see with a very close look is a thin white line 
> crossing the river in parallel to the bridge, exactly where the two 
> areas of the "waterway=riverbank" come together.
> 
> Any rendering experts here?
I'm currently looking into the waterway rendering in osmarender for
unrelated reasons (support for waterways in tunnels and minimum width)
and the rules are really strange.

What I have so far is in
http://trac.openstreetmap.org/attachment/ticket/1294/waterway-tunnel-v2.patch
Width is not fixed yet.

I'll look into your issue too


Patrick "Petschge" Kilian