[OSM-talk] Marina discussion transcript (Was: Mapnik rendering of Marinas changed)

[David Murn]

On Sun, 2010-04-18 at 20:56 +0200, Jonas Häggqvist wrote:
> On 17-04-2010 14:38, Patrick Kilian wrote:
> > Hi all,
> >> Count me as a complainer... I was wondering about that blue dashed line
> >> too - it does not fit well with the surrounding estuary and open sea.
> >>
> >> I'm in the process of mapping a marina and I spontaneously only tagged
> >> as a leisure=marina the water portion that is occupied by the harbour.
> > Open a trac ticket for mapnik then. Neither Steve nor the others in that
> > discussion had a strong opinion. Note that I didn't take part in that
> > discussion but merely witnessed it.
> 
> http://trac.openstreetmap.org/ticket/1681 contains a few back and forths, 
> but as Patrick says, there was also some discussion on IRC (I wouldn't 
> call it discussion, since there wasn't any disagreement, and a lot of 
> indifference).

For those interested, here is the transcript from that conversation:


<steve8> any other - non-layering - tracs you want me to have a look at?
<rasher> http://trac.openstreetmap.org/ticket/1681 <-- Marina areas are
tagged using sea colour. The wiki says the marina area is for the land
belonging to the marina. At any rate, using the exact colour of the sea
seems wrong, even if you want to use it for the sea area
<rasher> s/tagged/drawn/
<Ldp> rasher: actually, I'd expect leisure=marina to also cover the
water-based portion
<rweait> Ldp: rasher: how about just a boundary line with no fill?
Parks have the same issue.
<rasher> Maybe a boundary line does make more sense - then it wouldn't
matter if it's used for land or sea
<Ldp> rweait: and a symbol
<rasher> Genious
<rweait> how about a, ... nah, never mind.
<steve8> boundary, symbol and transparent background ....
<Ldp> but we have so many dashed lines on the map already. It's hard to
come up with easily distinguishable new ones
<steve8> yep
<steve8> rasher: have had a look at the marina example and will have a
doodle with it
<rasher> At any rate, simply rendering it indistinguishable from plain
sea seems a bit useless to me
<rasher> I wonder why the original submitter suggested that
<steve8> cos he/she was tagging teh water bit only probs
<rasher> But still, wouldn't it then make sense to colour it
lighter/darker to see which area belonged to the marina?
* rasher shrugs
<rasher> (yet another) A border of some sort is my current favourite
solution I guess
<Ldp> rasher: right, but I have an idea of using a different blue for
tidal water, and since you can have tidal marinas, that can be
problematic
<rasher> Oh dear
<steve8> there is also a issue of non-rendering breakwaters in that
example, which I thought I had fixed
<Ldp> probably because the marina area is overpainting them
<rasher> I'm not dead-set on using the leisure=marina to mean the
landarea by the way. Just waited to see what would happen with that
bugreport
<rasher> Ldp: nope - the marina area doesn't extend that far
<Ldp> where are the breakwaters then?
<Ldp> ah, wrong area
<rasher> Along the "Fjordbroen" pier
<Ldp> I was looking at the OP example
<rasher> Ah
<Ldp> steve8: are you sure your breakwater change has been deployed
already?
<steve8> ldp: just going to look
<steve8> right - marinas, breakwaters, orchards and living_streets is
enough for now