On Tue, Jun 15, 2010 at 4:31 PM, John Smith wrote:
> Numbers can be just as bad, what does 10 mean? is 1 the highest or lowest?
Whatever it says in the wiki. See the difference? The more arbitrary
the labelling system, the less likely people are to misuse their own
intuition.
(Ideally, it wouldn
Le 15/06/2010 08:31, John Smith a écrit :
> On 15 June 2010 16:05, Steve Bennett wrote:
>
>> While 3 levels might be enough currently, it might also be better to
>> leave room for more levels. Perhaps make it a scale out of 10, with
>> only numbers 3, 5 and 7 used at the moment.
>>
> Num
2010/6/15 Zeke Farwell :
> Well aeroway=helipad is documented on the wiki. Doesn't render currently
> though.
It does render in t...@h, mapnik doesn't show it.
What about creating a site-relation for airports, where the runways
are entered and the application can then decide how important and
On 15 June 2010 18:26, M∡rtin Koppenhoefer wrote:
> What about creating a site-relation for airports, where the runways
Speaking of runways, what's the correct way to tag the runway designations?
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2010/6/15 Steve Bennett :
> And since
> there isn't much difference between a shoulder and a bike lane
there is a huge difference IMO. The presence of a bike lane suggests
that the road was thought (or later adapted) also for bicycle use, it
will usually be convenient to enter and leave the bike
On 15 June 2010 18:46, M∡rtin Koppenhoefer wrote:
> 2010/6/15 Steve Bennett :
>> And since
>> there isn't much difference between a shoulder and a bike lane
>
>
> there is a huge difference IMO. The presence of a bike lane suggests
> that the road was thought (or later adapted) also for bicycle us
On Mon, Jun 14, 2010 at 11:21 PM, Steve Bennett wrote:
> For starters, in many places roads
> with bike lanes prohibit cycling outside the bike lane. And since
> there isn't much difference between a shoulder and a bike lane, it
> doesn't make sense to distinguish between "bicycle=yes" and
> "bic
2010/6/15 Steve Bennett :
> http://www.nearmap.com/?ll=-37.790341,145.039779&z=19&t=k&nmd=20100416
>
> You tell me which of those is a highway=motorway and which is a highway=trunk.
actually there seems quite some traffic, that's why I would consider
it extremely dangerous to use the shoulder by
Anthony wrote:
>I wouldn't suggest tagging a road with bicycle=yes if bicycles are only
>permitted in a bike lane either. How's a router supposed to know how to
>handle turns if it thinks the bikes are allowed to use the road?
When you cycle, how do *you* handle a (left) turn? In Florida you have
On Tue, Jun 15, 2010 at 2:01 PM, Nathan Edgars II wrote:
> Anthony wrote:
> >I wouldn't suggest tagging a road with bicycle=yes if bicycles are only
> >permitted in a bike lane either. How's a router supposed to know how to
> >handle turns if it thinks the bikes are allowed to use the road?
>
> W
Anthony wrote:
>On Tue, Jun 15, 2010 at 2:01 PM, Nathan Edgars II wrote:
>> When you cycle, how do *you* handle a (left) turn? In Florida you have
>> two options - move over to the left like any other driver, or stop on
>> the right and cross the entire roadway. The router will tell you to
>> turn
On Tue, Jun 15, 2010 at 3:41 PM, Nathan Edgars II wrote:
> With respect to only riding on the shoulder, we're talking about
> freeways, where ramps are almost always on the right side (left in
> some countries).
I won't speak for you, but I was talking about whether or not "bicycles
allowed only
Classifying by runway length does make some sense to me, but I really have
no idea how Mapnik or any other renderer works. Not sure if this would in
fact be easy or not. It also means a renderer needs the runway tagged as a
way or polygon in order to make a decision. What is a renderer to do wi
On 16 June 2010 12:06, Zeke Farwell wrote:
> Classifying by runway length does make some sense to me, but I really have
> no idea how Mapnik or any other renderer works. Not sure if this would in
> fact be easy or not. It also means a renderer needs the runway tagged as a
> way or polygon in or
Nice Airport map OJ W! It's cool seeing nothing but runways rendered at a
fairly high zoom
In response to your "aircraft movements per year" idea, it makes sense, but
it's not like airports have a sign outside advertising this information for
us mappers to plug into the database. Perhaps it's pu
I also have not seen runways tagged as nodes, but I have seen many, many
nodes tagged as aeroway=aerodrome. You're right, probably many of these
could have their runways traced from aerial imagery, but I've also seen
quite a few where I could not make out a runway. Now this is either because
the
On 16 June 2010 12:15, Zeke Farwell wrote:
> I also have not seen runways tagged as nodes, but I have seen many, many
> nodes tagged as aeroway=aerodrome. You're right, probably many of these
> could have their runways traced from aerial imagery, but I've also seen
> quite a few where I could not
Martins example that the "Faroe Islands have 1 small airport/aerodrome with
1 short runway (1250m) with few small buildings in the whole country" shows
that just because an airport is small doesn't mean it isn't important.
Compare the number of airports rendered at Mapnik zoom 10 in the greater
Ch
On 16 June 2010 12:40, Zeke Farwell wrote:
> Compare the number of airports rendered at Mapnik zoom 10 in the greater
> Chicago area to the number of airports at the same zoom when looking at the
Welcome to the wonderful world of cartography, it's as much of an art
as anything else...
__
On Tue, Jun 15, 2010 at 10:48 PM, John Smith wrote:
> Welcome to the wonderful world of cartography, it's as much of an art
> as anything else…
I quite agree. Creating a database that can be used to render a
cartographically pleasing map of any area of the world is a tall order :-D
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On Wed, Jun 16, 2010 at 12:40 PM, Zeke Farwell wrote:
> This is similar to the concept that the definition of highway=primary can
> vary greatly depending on the area of the world you are looking at. I'm not
> sure how we can use things like runway length, size of airport polygon, or
> annual air
On 16 June 2010 14:05, Steve Bennett wrote:
> Absolutely. I think it's important to have clear definitions like
> "importance 3 is given to airports with X runways" *within* geographic
> regions (countries?), but not *across* them. This can be managed
> effectively through wiki pages for each coun
Does anyone see a problem with simply using the same admin_level tag
currently in use with boundary=administrative, in combination with
aeroway=aerodrome? A new aerodrome_importance tag could be created, but
admin_level is already in use so why not make it multi-purpose. All we'd
have to do is co
I'm a little bit worried about using admin_level, as it has
connotations of control, not just level. It could be misinterpreted
as who controls an airfield, rather than how important it is.
What you're trying to do here is give a renderer explicit hints on how
important something is, and what zoo
On 16 June 2010 15:17, Stephen Hope wrote:
> things, and renderers can implement it only once, it's more likely to
> be accepted. Maybe something like Render_hint = 3, hint
> type=aerodrome if we do need to differentiate between the hint types.
This isn't just useful for rendering it could have
On Wed, Jun 16, 2010 at 3:17 PM, Stephen Hope wrote:
> I think this concept is important. People can come up with all sorts
> of algorithms for ranking things according to all sorts of rules, and
> none of them will work on every occasion. We need some explicit
> method of hinting to a renderer
On 16 June 2010 16:12, Steve Bennett wrote:
> developers). It's very easy to simply render or not render based on an
> importance hint, rather than trying to apply the latest rule involving
> air traffic, runways, blah blah, that the community came up with this
> week.
The problem with using subj
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