I normally plot and tag a pub building as an area. I've noticed a few points appearing for existing pubs. They may be coming from the new OSM online editing programs.<br><div class="gmail_quote"><div dir="ltr">On Fri, 11 Mar 2016 at 22:48, Neil Matthews <<a href="mailto:ndmatthews@plus.net">ndmatthews@plus.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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It's not my preferred style -- I prefer to draw the building and tag
that. I'd expect to put the name and address on the building too!<br>
<br>
If I tag a large area, then there's a high likelihood that it'll
adversely affect routing. Conversely tagging large areas makes the
map look more complete.<br>
<br>
However, if I can't rely on a rendering to help me locate a public
house (emphasis on the house :-) accurately on a map, especially at
the end of a long day mapping, then that doesn't rely help. And
since I use mapnik renderings and OSMAnd+ it's important that they
work well -- especially as that way I find other non-obvious issues.<br>
<br>
Schools are somewhat different in that they aren't generally open to
the public -- it's probably more important to map the entrances on
the perimeter -- as more and more schools are fencing kids in and
public out.<br>
<br>
But maybe we should use bar to mean where you actually get served?
And pub for the whole area.<br>
<br>
Cheers,<br>
Neil</div><div bgcolor="#FFFFFF" text="#000000"><br>
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<div>On 11/03/2016 17:26, SK53 wrote:<br>
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<div>Earlier today browsing Pascal Neis summary of
changesets I noticed a comment about reverting a duplicate
pub node, and glanced at the <a href="http://www.openstreetmap.org/changeset/37749403" target="_blank">changeset</a>.<br>
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The pub had indeed been added again (and subsequently
removed). However what caught my attention was that the
amenity=pub tag had been applied to the entire area of the
pub grounds (car park, buildings etc.). A quick query on IRC
and Andy (SomeoneElse) also maps pubs this way, however
rarely with as much detail as this particular one. The
general alternative is to map pubs as areas on the building
of the pub.<br>
<br>
</div>
The obvious advantages of mapping the entire area of the pub
property are largely to do with the immediate association of
car parks, beer gardens, children's playgrounds with the pub
and thus ready interpretation of things like access tags and
resolution as to which car park belongs to the pub. This
approach is clearly less cumbersome than using a relation,
such as associatedCarpark (invented I believe by Gregory
Williams in Kent).<br>
<br>
</div>
<div>The disadvantages, at least to my mind, are:<br>
<ul>
<li>Non-intuitive. Certainly I have never thought of mapping
pubs this way, although I can see the point. I doubt that
a newcomer to OSM would find this the straightforwardly
obvious approach.</li>
<li>Pubs are licensed premises. The premises licensed
usually relate to the building.</li>
<li>Where do we place tags associated with the pub premises
which may apply also to other parts of the pub property
(an obvious one would be opening_hours).</li>
<li>Peculiar rendering. In this case a pub icon in a car
park. Even if we fully accept "not tagging for the
renderer", let's consider how we can tell renderers to
improve icon placement. Andy suggested on IRC a label
node, but this implies a relation: do we want to replace a
simple node &/or area tag with a node, an area & a
relation? And then ask the Carto-CSS team to deal with it?
It seems to me that this pushes the bar too high not just
for inexperienced mappers but also those of us who have
been at it for a while. In the meantime the CartoCSS
rendering will look rather daft in such cases.<br>
</li>
<li>Consistency. In general pubs will get mapped initially
as nodes over the pub building, and attributes on a node
easily transfer to a building outline + (usually)
building=pub. In particular the node & area centroid
will tend to be very close. Thus the two different ways of
mapping relate to each other in a clear way.</li>
</ul>
<p>This issue of course is more general than pubs. For
instance we map schools, colleges, universities and
hospitals as areas and place all the relevant tags on the
area. Churches & other places of worship, on the other
hand, tend to have the amenity tag placed on the building.
(This makes sense as in many cases it is the building which
is the place of worship not the grounds). Also, I certainly
will map a supermarket as the building rather than the whole
area including car parks, petrol stations etc.</p>
<p>Obviously I prefer for supermarkets, places of worship and
pubs that the area mapped should be the building. However I
can equally see that there are certain issues which are
otherwise intractable where mapping the whole area offers
some advantages.</p>
<p>One approach which would reflect my own mapping approach
would be to tag the complete area associated with the pub as
landuse=retail, with a tag such as retail=pub. This would
require no more additional OSM elements than used at the
moment, and would provide for the identification of
associations with car parks etc (and would work fine with
multipolygons for pubs where the car park is across the road
or otherwise removed from the pub.</p>
<p>This is an example of how as more stuff gets mapped
different styles evolve. Neither is specifically wrong or
right, but it would be nice if we could find a consistent
style which satisfies most needs. <br>
</p>
<p>Cheers,</p>
<p>Jerry<br>
</p>
<p><br>
</p>
<p><br>
</p>
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