Re: [Tagging] Nuclear Key

2011-04-03 Thread Ulf Lamping

Am 03.04.2011 04:26, schrieb David Murn:

On Sat, 2011-04-02 at 12:11 +0200, Ulf Lamping wrote:

*... and I'll especially call it wiki fiddling if the currently widely
used tags are removed from the wiki without even keeping a note of the
old tags.*


Doesnt the fact that the proposal exists, outlining the change from the
old to new tags, cover the 'note of the old tags' that you ask for?


No. If a tag is in wide use, it's not ok to remove that information from 
the corresponding wiki page. Period. It's not enough that you may find 
it at some proposal pages.



Should all tagging proposals be put through a proposal, a discussion,
RFC and voting stages, and then be passed onto another group of 'people
who know exactly what theyre doing' (but apparently dont use the tag, or
participate in the tagging discussions), so that they can either vote or
veto it?


No, it's not about power in the project. If someone changes a wiki page 
of a widely used tag, it's a *must* to keep information of the current 
way. Otherwise people finding the tag in the osm data, they are forced 
to search, which is not ok. The wiki page should inform the user about 
the current status of the tag, mentioning both there's a way the tag was 
used for quite a while and there's a proposed new way of doing things.


If the author is not able to write this down in an informative way, 
he/she shouldn't change the wiki.



P.S.: I have helped to transform the formerly used tagging schema, e.g.
man_made=power_wind to the current one because the initial way really
lacked a lot of things. The recent change causes a lot of trouble and
doesn't add a lot of benefit the way it is done.


I dont remember seeing your name in any of the discussions, and a quick
search through the wiki doesnt find your name linked with power or
generators.  Out of interest, how come its okay for you to transform a
tagging schema, but its not okay for a community-agreed change to the
scheme to take place?


It's community agreed if the majority of mappers use this tag, not when 
some people voted upon it.



Did your 'transform'ing of the schema get
presented on tagging@ on the power page, or have any voting?  If not,
how can you call this case wiki-fiddling and yours not?


At that time, the tagging@ list didn't even existed.

Regards, ULFL

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Re: [Tagging] Nuclear Key

2011-04-02 Thread Ulf Lamping

Am 02.04.2011 11:03, schrieb David Murn:

On Fri, 2011-04-01 at 14:42 +0200, M∡rtin Koppenhoefer wrote:


This (new ?) schema seems not often used (some plant has the 2).


Excellent example of wiki fiddling ...



at least this was discussed and voted about:


Im sure I remember seeing this discussed either on here or possibly on
the talk list, and I personally received an email from the proposer
since Ive added some power stations and presumably the proposer emailed
a bunch of people he thought would be interested.

If someone comes up with a proposal, discusses it on mailing lists,
emails current users of the tag, casts and finishes a vote, how on earth
can you call it wiki-fiddling?  Just because someone changed the wiki to
something some people disagree with, doesnt mean its a case of
'wiki-fiddling'.


Yes, but if someone tries to change an existing and working schema with 
something slightly different - that could be integrated with minor 
changes into the existing schema - I'll call that wiki fiddling, 
regardless if a vote was done or not.


This way we'll have to change each and every tag every year because 
someone finds the new and improved way to do things as the current tag 
fashion expects him to.


*... and I'll especially call it wiki fiddling if the currently widely 
used tags are removed from the wiki without even keeping a note of the 
old tags.*


Please keep your hands off existing documentation of widely used tags, 
unless you know exactly what you are doing ...


Regards, ULFL

P.S.: I have helped to transform the formerly used tagging schema, e.g. 
man_made=power_wind to the current one because the initial way really 
lacked a lot of things. The recent change causes a lot of trouble and 
doesn't add a lot of benefit the way it is done.


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Re: [Tagging] Mountain passes

2011-02-14 Thread Ulf Lamping

Am 14.02.2011 13:40, schrieb M∡rtin Koppenhoefer:

2011/2/14 Nathan Edgars IInerou...@gmail.com:


http://mapper.acme.com/?ll=36.76925,-82.20018z=16t=T If this isn't
mountain_pass=yes, what should it be mapped as?



IMHO natural=pass would be the most logical way to do it. Natural
describes in it's vast majority geographical features as which I would
see a pass as well.


While I agree that this would be logical, the crowd has chosen otherwise ...

Regards, ULFL

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Re: [Tagging] Mountain passes

2011-02-14 Thread Ulf Lamping

Am 14.02.2011 14:22, schrieb M∡rtin Koppenhoefer:

2011/2/14 Steve Bennettstevag...@gmail.com:

On Mon, Feb 14, 2011 at 11:32 AM, Ulf Lamping
ulf.lamp...@googlemail.com  wrote:

That was the start of the discussion in 2007, but was changed due to the
changes (around the same time) of highway=tunnel / highway=bridge to
tunnel=yes / bridge=yes - so using the same logic for passes seemed like a
good idea then ...


Ah, yes, good point. Although it's slightly complicated by a pass
theoretically being a point rather than a stretch of road. And that
presumably makes it hard to render - you'd need to work out which way
the point is oriented.



IMHO you don't. Simply render Simplonpass, 2005 m at the given point
in a pleasant font. Done.


Rendering a single point and a label is often found on topological maps.

For street maps, you'll usually have a bridge like symbol which needs 
an orientation of the corresponding way to be drawn properly (as 
Osmarender is already doing).



Obviously, it would be much better than nothing if mapnik at least 
would just render a point with a label ... :-)


Regards, ULFL

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Re: [Tagging] Mountain passes

2011-02-14 Thread Ulf Lamping

Am 14.02.2011 22:22, schrieb Nathan Edgars II:

On 2/14/2011 4:05 PM, yvecai wrote:

Actually, Mapnik would render a 'pointSymbolizer', how would it look
like? Just a label could be enough.


Why not simply use the same style as place=locality?


Because I would like to see the elevation in the label - at least in 
higher zoomlevels.


Basically the same behaviour as natural=peak would be my favourite.


They fit the
definition (in fact there seems to be no reason not to apply that tag to
passes other than redundancy).


Well, tagging every unpopulated named place with place=locality is 
really misleading. A football stadium is usually unpopulated and has a 
name :-)


If we have a specific tag for a specific feature we shouldn't add more 
generic stuff to it IMHO. Makes it more difficult to render without a 
real benefit.


Regards, ULFL

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Re: [Tagging] Mountain passes

2011-02-13 Thread Ulf Lamping

Am 13.02.2011 20:57, schrieb j...@jfeldredge.com:

I guess this partly comes down to the questions of how you define a way, and 
how you define a pass.  If a particular pass becomes little-used, because a 
tunnel or a lower pass provides an easier way to get past the mountains, does 
that make it stop being a pass?  What if the pass is a boundary between two 
nations, and the border crossing is closed because one or both nations don't 
maintain a customs station there?  Does that make the pass stop being a pass, 
in the geographic, rather than political, sense?

---Original Email---
Subject :Re: [Tagging] Mountain passes

From  :mailto:dieterdre...@gmail.com

Date  :Sun Feb 13 13:36:08 America/Chicago 2011


2011/2/13 Nathan Edgars IInerou...@gmail.com:

According to http://wiki.openstreetmap.org/wiki/Key:mountain_pass passes
only make sense on ways. But it's possible to have a pass with no way
crossing it (not even an informal footpath) or with multiple ways crossing
(a dual carriageway, or parallel highway and railway). How should these
cases be handled?



no, it is IMHO not possible that a pass has no way that crosses it,
otherwise it wouldn't be a pass.


In the narrower sense you are correct, but:

http://en.wikipedia.org/wiki/Col_de_Bretolet

A pass (french: Col) that has no way to either side, but a way over a 
ridge from the Col de Cou ;-)



If there is more then 1 one way I
guess you would have to tag all of them.


Especially in the U.S., I've seen some dual carriageways with two pass 
nodes, e.g.:

http://osm.org/go/T2U0CV8Ye-?layers=O


Maybe natural=pass (or mountain_pass) on a node might be more logical
for the feature if you bear in mind that the wiki suggests to tag ele
with it.


The underlying problem what makes a pass a pass is *very* difficult to 
answer, e.g. there's a lengthy Wikipedia discussion about it. If a pass 
is closed due to political differences but there's a way over it, this 
is an easy one (mountain_pass=yes and access=no).


The difficult question: What is generally a way in this regard? If you 
can travel the pass by car, 4*4, horse, MTB, hiking, via ferrata or 
extreme sports?


If you read the wiki page, it started in 2007 with highway=pass, so you 
can see that I (and others) basically had roads in mind when I've wrote 
it (and no one at that time seemed to even mention passes with no way).


In practice today, a lot of nodes with mountain_pass=yes are tagged, 
where you don't see any way nearby (maybe from imports?), and a lot of 
nodes on hiking trails, roads, etc.


So today in OSM a mountain_pass=yes denotes the geographical feature in 
the wider sense (german: Scharte, Sattel, Joch, ...), not the narrow 
definition of being a passage on a way.


Regards, ULFL

P.S: What bugs me more is the (not so un)common practice to put the node 
near the way (where the sign is?) and not exactly on the road. This 
makes it difficult for renderers to detect the kind of way a pass 
provides ...


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Re: [Tagging] Mountain passes

2011-02-13 Thread Ulf Lamping

Am 14.02.2011 00:07, schrieb Steve Bennett:

On Mon, Feb 14, 2011 at 8:28 AM, Ulf Lampingulf.lamp...@googlemail.com  wrote:

P.S: What bugs me more is the (not so un)common practice to put the node
near the way (where the sign is?) and not exactly on the road. This makes it
difficult for renderers to detect the kind of way a pass provides ...


That makes sense if you think of a pass being a locality (we had a
picnic up at the pass) rather than a particular road feature (we
drove over the pass). I would probably do the same thing, naïvely.

Probably a more intuitive tag would have been highway=mountain_pass
(like highway=turning_circle...)


That was the start of the discussion in 2007, but was changed due to the 
changes (around the same time) of highway=tunnel / highway=bridge to 
tunnel=yes / bridge=yes - so using the same logic for passes seemed like 
a good idea then ...


Anyway, every solution has it's pros and cons here.


Also, it doesn't look like Mapnik actually does render it?

http://osm.org/go/znyo7Chj2--


AFAIK, only osmarender at (too?) high zoom levels (from z15) and JOSM 
renders it.


I would be glad, if Mapnik would render this as well. The same 
zoomlevels and logic as for peaks (icon, name, ele at different 
zoomlevels) would make sense for me ...


Regards, ULFL

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Re: [Tagging] Feature Proposal - RFC - natural=bare_rock

2011-01-29 Thread Ulf Lamping

Am 29.01.2011 13:33, schrieb M∡rtin Koppenhoefer:

2011/1/29 John Smithdeltafoxtrot...@gmail.com:

On 28 January 2011 21:35, M∡rtin Koppenhoeferdieterdre...@gmail.com  wrote:

Yes, IMHO (I'm not an English native) this is not scree. I would tag them
landcover=bare_rock (or depending on the size landcover=pebbles)
http://en.wikipedia.org/wiki/File:Wave_Retreating_from_Pebbles.jpg


Why bother with landcover=* when we have natural=* and surface=* already?


why explain the same issues a hundred times? You can find the answer
in the ML archive and in the wiki.


If you advertise your own proposal(s) a hundred times here, then please 
also mention the (widely used) alternatives.


Regards, ULFL

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Re: [Tagging] RFC: historic:civilization and historic:period Re:new key civilization

2011-01-12 Thread Ulf Lamping

Am 12.01.2011 17:59, schrieb j...@jfeldredge.com:

Your examples are rather ridiculous.  A Viking captain, or King Arthur's sword, 
would not be logical items to have on a map.


Hmmm, I guess Pieren is very much aware of this :-)


A building or archaeological site likely would be on a map, and tagging them 
with the civilization and era would make it easy to generate special-interest 
maps.


Yes, in principle.

In practice, lot's of sites have *several* different roots throughout 
the ages.


A castle may be build in early medieval ages, continuously extended 
throughout those ages, largely changed in the baroque era and mostly 
rebuild after damages of the second world war. Oh, and all of that on 
top of a hill that was already populated in the celtic age.


How do you tag that?

Regards, ULFL

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Re: [Tagging] RFC: historic:civilization and historic:period Re:new key civilization

2011-01-12 Thread Ulf Lamping

Am 13.01.2011 03:08, schrieb M∡rtin Koppenhoefer:

2011/1/12 Ulf Lampingulf.lamp...@googlemail.com:


In practice, lot's of sites have *several* different roots throughout the
ages.

A castle may be build in early medieval ages, continuously extended
throughout those ages, largely changed in the baroque era and mostly rebuild
after damages of the second world war. Oh, and all of that on top of a hill
that was already populated in the celtic age.

How do you tag that?



the hill or the castle?


Could you explain both?

Regards, ULFL

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Re: [Tagging] Karting...

2011-01-10 Thread Ulf Lamping

Am 10.01.2011 12:28, schrieb John Smith:

http://wiki.openstreetmap.org/w/index.php?title=Template:Map_Features:sportdiff=prevoldid=583789

I'd be more inclined to use the English and shorten it to just sport=cart


Some time ago, I had a look at how sport=motor is actually used. By 
looking at the names in the OSM planet, I found some quite often 
existing stuff (motocross, karting, ...) as a name like: Kartarena 
Bottrop was tagged with the generic sport=motor and the name suggests 
to be a karting arena.


So I looked at how often sport=xy alternatives for e.g. karting appeared 
in tagwatch (taginfo, osmdoc, ...?). sport=karting was most often used 
and easy to remember (no underscore), so I've added it to the JOSM 
presets and mappaint display.


You'll find this and some other formerly sport=motor things in the JOSM 
presets under: sport/motorsport/...


Regards, ULFL

P.S: I don't tend to change this in JOSM ;-)

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Re: [Tagging] Towing service?

2011-01-07 Thread Ulf Lamping

Am 07.01.2011 03:26, schrieb Alan Mintz:

I can't find a tag for the base of operations of a towing service - i.e.
you call them to tow your broken car or truck to a repair shop. The
basic definition would be a service that tows cars and other light
vehicles. Truck and other heavy vehicle towing would be a separate
option. I propose:

shop=towing [+ hgv=yes]


For me, a shop would be to get in, buy something (or at least get some 
service done) and go out. That's not the case here. A towing service 
will get to your place to do something, much like the office of a 
plumber (which in most cases also wouldn't qualify for a shop).


You might even won't be allowed to enter the area.

Different thing would be car repair or car rental, which is also doing 
towing service, in these cases I simply would add towing_service=yes.


Regards, ULFL

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Re: [Tagging] Thoughts on how to replace or modify an exist/established tag (Was: Feature Proposal - RFC - sluice_gate)

2011-01-06 Thread Ulf Lamping

Am 06.01.2011 23:06, schrieb Simone Saviolo:

... but in fact the map is not reliably usable.


Fine, if you think OSM is working unreliably - just go on and start your 
own reliable project :-)


If you set up something like an OSM core profile and the majority of 
people find it useful, this might - in the future - become an addition 
or exchange of the current wiki page anarchy - when people agree that 
it's more useful than the current wiki thing. Side note: The Map 
Features is basically already such a thing.


I've seen several of such discussions over the OSM years passed now - 
and I just habe some serious doubts that this will happen. BTW: I did 
intense analyzing of the existing features and I can tell you that even 
this took a *lot* of time. Don't underestimate the effort for such a 
culture independent profile (if this is possible at all).



What most people completely seem to miss here: The current wiki 
anarchy just shows, that finding a clear and valuable (definition of a) 
tag is *much* more dfficult than most people can even imagine ...


Regards, ULFL

P.S: Reading this thread, I've already seen a lot of bullshit bingo 
candidates, being process maturity one of the most valuable ;-)


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Re: [Tagging] Thoughts on how to replace or modify an exist/established tag (Was: Feature Proposal - RFC - sluice_gate)

2011-01-06 Thread Ulf Lamping

Am 07.01.2011 00:10, schrieb Steve Bennett:

If by do their best you mean, the people involved work hard and in
good faith, yes. If you mean the result is optimal, then clearly not.
There are lots of bugs in mapnik.


Where are the trac tickets to improve the situation?


And just look at the table I produced
to see the wide discrepancy in tag support across different editors and
renderers:

http://wiki.openstreetmap.org/wiki/User:Stevage/tagsupport


I'm not argueing that there certainly are bugs, but renderers have - by 
definition of their intention - discrepancies in what they want to 
display. I really like your table (BTW: A more frequent update would 
help), but taking it as an argument for missing standards is just strange.


The other way round might make more sense. If all renderers, the wiki, 
OSMDoc and alike lists that feature, it seems to be in common use. 
Obviously, this doesn't reflect in any way the semantics of that tag.



This is just like when you write software to implement an open-source
standard. No one is forcing you to implement the entire standard. But
most developers see the benefit in operating in this standard way, to
improve interoperability.


We are not writing software here, your comparison is therefore wrong for 
several reasons. Even if it would be right, why are there so many 
competing standards out there?


Please also remember: Standards need quite a while to evolve, e.g. first 
GPX was born in 2002! Compared to that time and complexity, our tags 
are already quite mature - without any standard body!


Regards, ULFL

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Re: [Tagging] Feature Proposal - RFC - sluice_gate

2011-01-03 Thread Ulf Lamping

Am 03.01.2011 21:20, schrieb Paul Norman:

They both have elements of flow control, but function in quite different
ways and look very different. A weir is used to raise the water level or
control flow, with water flowing over the top. A sluice gate is essentially
a valve for small waterways.


You might add such a description to the wiki page, as others might be 
confused as much as I was.


BTW: My feeling is, that sluice gates formerly were tagged with 
waterway=weir most of the time anyway.



The suggested term floodgate would be more intuitive for me as a none 
native speaker - if the term fits for native speakers as well.


Regards, ULFL


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Re: [Tagging] Call for German, French, Russian Japanese updates for changed tag

2010-11-22 Thread Ulf Lamping

Am 22.11.2010 10:26, schrieb Tom Chance:

Hello,

Some time ago a proposal to change the way we specify types of power
generators was passed. Unfortunately, the German, Russian, French and
Japanese translations haven't been updated.


Hi Tom!

Please revert the changes in the english page!

A passed proposal doesn't mean in any way that it's a good idea to 
change existing information that's been there for quite a while.


Regards, ULFL

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Re: [Tagging] Call for German, French, Russian Japanese updates for changed tag

2010-11-22 Thread Ulf Lamping

Am 22.11.2010 10:49, schrieb Tom Chance:

Ulf, the proposal introduced a new set of tags to specify the type of
power=generator, deprecating two existing tags. The new set of tags is
more powerful and loses none of the detail made possible by the old tags.


I'm not gonna argue with you, wether the new proposal is better than the 
existing stuff, as that's not the question to ask.



When that happens, the only logical course of action is to update the
wiki documentation showing the new tags and removing the deprecated
tags. It makes no sense to continue telling people about deprecated tags.


First of all, please repeat a hundred times on the blackboard: There's 
no such thing as a deprecated tag in OSM. Especially not, if the new 
proposal is only a few weeks old ;-)


Your logical course of action has a quite unlogical component: As long 
as editors, the database and renderers using the existing tags - as they 
do - it's quite unlogical to remove the description about those tags in 
a hassle. This will e.g. confuse anyone looking for the intention of 
those tags as found in the database.



Another thing already mentioned quite often: 20 out of 20 mappers 
isn't a reasonable amount of people to force ideas over all others. It's 
an indication that it is probably a good idea - but not more. If the 
mappers think your proposal is a good idea they will use it. But that's 
up to the mappers.



So I'll herefore ask you to change the page back to it's original state. 
Adding a noticeable remark / link to the approved proposal page is 
perfectly reasonable, simply replacing the existing content is 
definitely not.


Regards, ULFL

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Re: [Tagging] Call for German, French, Russian Japanese updates for changed tag

2010-11-22 Thread Ulf Lamping

Am 22.11.2010 22:28, schrieb Petr Morávek [Xificurk]:

Ulf Lamping napsal(a):

First of all, please repeat a hundred times on the blackboard: There's
no such thing as a deprecated tag in OSM. Especially not, if the new
proposal is only a few weeks old ;-)


Sure there are deprecated tags in OSM - it doesn't mean that they are
not used in the database or that editor is forbidden to use them... it
simply means they are deprecate in favor of a better tagging scheme. If
someone thinks that the new tagging scheme is not better, then he/she
should open discussion about its problems, preferably in mailing list or
on wiki itself.


You didn't get the smiley ;-)

Sure, there are tags that you could call deprecated, highway=minor would 
be an example - no one would actually encourage to use this tag any more.


But - simply because some people written a proposal and voted upon it, 
doesn't automatically deprecate the former widely used tag.


You could call it deprecated if the vast majority of mappers would see 
it that way and no one would actually encourage to use the old tag any 
more. Which is really not the case here.


Regards, ULFL

P.S: If the old tag would be there only for a weeks (or maybe even a 
small amount of months) and not very widely used I wouldn't insist for a 
clean way of change. But the old definition is there for years and a 
few (ten?) thousand times used.


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Re: [Tagging] How to tag a (main) entrance to a large feature?

2010-11-18 Thread Ulf Lamping

Am 18.11.2010 10:41, schrieb Nathan Edgars II:

Features such as parks may cover a large area, and if the park is
drawn as a polygon, routing software will likely choose the centroid.
The nearest point on public roads to the centroid may however not be
the actual entrance to the park. For example, go to
http://www.yournavigation.org/ and get directions from Orlando, FL to
Wekiwa Springs State Park (the actual entrance is in the southeast
corner; use Wisteria St, Orange County, FL). How can we make sure that
the software will know where the entrance is?


By drawing footways / highways where they actually are. It's really that 
simple ;-)


Regards, ULFL

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Re: [Tagging] geology taggin?

2010-11-17 Thread Ulf Lamping

Am 17.11.2010 21:29, schrieb Elizabeth Dodd:

On Wed, 17 Nov 2010 21:11:18 +0100
Ulf Lampingulf.lamp...@googlemail.com  wrote:


It is accepting that semantically different things can reside under
the same key and that this doesn't cause any problems - except for
people like you that seem to think that a systematic approach is a
value in itself.


There are good reason for keeping semantically different things in
different groups.
1. the new mapper.
I remember trying to work out, with multiple wiki pages open, how
something was described, and then tagging it. It took forever, and then
the editors improved their presets and I remembered more of them.


Funnily, I (to some extend) was the one that improved the JOSM presets.


I
challenge you to explain to a new mapper why cafe is under amenity and
bakery is under shop, when they live in an area where bakeries include
cafes as their normal state.


You are asking why semantically different things (a place to eatdrink 
vs. a place to go in, buy something and go out) are placed in different 
keys? How does this correlate with your first sentence?


Fine example, as amenity was s crowded that we had to split the 
shops away from it, creating another key that seems to cause confusion 
here. This example is exactly the result of such an approach to 
semantically sort things and it's possible negative side effects.



2. finding if someone has already described this item or not
When items in the real world haven't got an OSM tag, how do I find the
comprehensive list of features and search it?
So there are shops that sell building bricks. Outdoor display area,
with brick walls to show the bricks for sale, and a little office for
the salesperson. Shop? Amenity? Light industrial? Office?
If we don't tag with rational schemes we will have multiple duplicate
tags simply because people can't find the place where the tag was
placed in the schema.


You are probably mixing up rational and semantical grouping. I've simply 
argued that a rational scheme (aka a scheme people can 
understand/remember) isn't necessarily a scheme that groups along a 
semantical boundary.


Regards, ULFL

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Re: [Tagging] geology taggin?

2010-11-17 Thread Ulf Lamping

Am 17.11.2010 21:43, schrieb M∡rtin Koppenhoefer:


It is accepting that semantically different things can reside under the same
key and that this doesn't cause any problems - except for people like you
that seem to think that a systematic approach is a value in itself.


it depends what you implicate with creating problems. If you invent
a new value, it is not clear where to put it, because there is no
logic.


Of course there is a logic, it's just a logic that you don't like and 
therefore deny to recognize ;-)



What about valleys. Say you wanted to put a valley in the db.
Is this natural? Maybe yes, as long as it is not artificial.


So what's the problem?


If you
make presets for an Editor, you will have to filter the values by what
they express, some are geographic features, others are physical
landcover features, others are even different things.


Some may think about a specific feature being more of a geographic 
feature, some a physical landcover and some may not even get the 
distinction between the two. This complicates the life of all ;-)


You are implying there's an obviously correct way to make these 
distinctions, which is not the case. If you take a look at:


http://de.wikipedia.org/wiki/Datei:Blaubeerwald.jpg

the physical landcover would be bushes for me and certainly not trees. 
You may disagree.



This complicates
the life of all: mappers, especially new ones as well as application
developers.


While I was working to improve the JOSM presets, the more detailed the 
(sub-)menus became, the harder it was to place specific items into the 
right menu - let alone to find the right group boundaries (aka menus) at 
all to remain understandable.


The more groups (aka keys) you have, the harder it gets to understand 
and remember each boundary (aka the rules behind it). The more detailed 
each specific group is defined, the harder it get's to place a new item 
into the existing groups, e.g. it may fit into two definitions or none 
at all.


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Re: [Tagging] geology taggin?

2010-11-16 Thread Ulf Lamping

Am 16.11.2010 13:51, schrieb M∡rtin Koppenhoefer:

2010/11/16 Ulf Lampingulf.lamp...@googlemail.com:


So what is the *exact* problem with surface?


it extents the usage of surface as attribute for routable entities to
all kind of entities, therefore reducing simplicity for the data
consumers with no benefit at all.


No, surface was meant (and is in fact used widely) to describe the 
surface material of something, being it a highway, beach or whatever. 
There is e.g. *no* problem to describe the surface of e.g. natural=beach 
with that tag.


A router wouldn't try to search for surface, but for highway or alike. 
It might want to analyze surface in addition to another tag.


I doesn't make sense to me, if people use surface as a standalone tag, 
because it should always be an addition to other tags. But that's not a 
problem with that tag, but how people using it in clear breach of the 
definitions.



Another advantage of specialized tag landcover is that in contrast
with surface it by itself implies area=yes.


So what is the *exact* advantage of landcover?



well, one you cited yourself.


Did I?


Another one was written above: trees,
which are not representable with surface.


I've never argued to use surface for trees, but the well established 
natural=wood / landuse=forest.



Sorry, this kind of vague we might want to have xy because someone might
want to ... is pretty much pointless.


this is not vague at all, and people are frequently popping up with
the landcover proposal, as there seems to be a desire for it.


Reading your new proposal page, I only see a vague definition that is in 
direct conflict with landuse and natural and therefore will confuse 
mappers how to tag things. It remains unclear under which circumstances 
someone should use landcover, landuse and/or natural.


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Re: [Tagging] geology taggin?

2010-11-15 Thread Ulf Lamping

Am 15.11.2010 11:39, schrieb Morten Kjeldgaard:

On 2010-11-14 20:30, Ulf Lamping wrote:


landuse=nature_reserve is your own personal concept. Please have a look
at (and make yourself comfortable with) the existing map features before
you discuss here.


Arrogance doesn't bring any respect to your point of view. Yes it's
leisure=nature_reserve and not landuse, I am so sorry Ulf, I should have
used a better example for those who strive to misunderstand.


First of all: May I kindly remind you of your own words in this thread: 
But those of us concerned future development of the database ... which 
was a direct response to a mail from me in this thread. This implies 
that I am not interested in the future development of the database. 
Telling this to someone who has spend a significant amount of effort 
into developing the database (since 2007) isn't very nice.


I've seen too many times people argueing about how tags should be, that 
obviously had an idea how they think it should be, but didn't really 
know how it currently is. Your example of nature_reserve falls into that 
category, as the concept of putting this into leisure, landuse, natural 
or whatever else is simply broken.


The whole nature_reserve as an area is broken. This conceptual problem 
should be known to people argueing about landcover ...


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Re: [Tagging] geology taggin?

2010-11-15 Thread Ulf Lamping

Am 16.11.2010 00:57, schrieb M∡rtin Koppenhoefer:

2010/11/15 Ulf Lampingulf.lamp...@googlemail.com:

as the concept of putting this into leisure, landuse, natural... is simply 
broken.


+1


Oh, BTW, as a side-effect, putting this into landcover is *also* broken.


The whole nature_reserve as an area is broken.


it is clearly an area. What else should it be? All boundaries delimit areas.


Yes, germany is basically also an area. Some people think it's a good 
idea to not tag this as an area but using a boundary way / relation.


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Re: [Tagging] geology taggin?

2010-11-15 Thread Ulf Lamping

Am 16.11.2010 02:57, schrieb Nathan Edgars II:

On Mon, Nov 15, 2010 at 8:20 PM, Ulf Lampingulf.lamp...@googlemail.com  wrote:

Am 16.11.2010 00:57, schrieb M∡rtin Koppenhoefer:

2010/11/15 Ulf Lampingulf.lamp...@googlemail.com:

The whole nature_reserve as an area is broken.


it is clearly an area. What else should it be? All boundaries delimit
areas.


Yes, germany is basically also an area. Some people think it's a good idea
to not tag this as an area but using a boundary way / relation.


http://wiki.openstreetmap.org/wiki/Multipolygon
The multipolygon relation is OpenStreetMap's area data type.


Which is - well - just wrong. The closedway is the traditional way of 
OSMs data type for an area and the multipolygon is the modern way if the 
traditional model doesn't fit well. Most people in OSM will model e.g. 
most buildings with a closedway and not with a multipolygon (unless 
necessary). Both would be possible and both are an area.



Are you done being pedantic?


Sorry, you've missed the point.

Maybe this should better read: The whole nature_reserve as a closedway 
is broken.


Obivously nature_reserve is an area (however you model it). But it's 
usually an area more the size of germany compared to e.g. the size of a 
single building (yes, you could endlessly discuss about this statement).


So while you're modelling the boundary of the nature_reserve (e.g. using 
a multipolygon) and you're not using a closedway (which you'll probably 
never do for a nature_reserve), it *never* get's in the way of landuse, 
natural, surface or landcover.


Remember: This part of the thread was about a need for landcover because 
of nature_reserve - which I denied.


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Re: [Tagging] geology taggin?

2010-11-15 Thread Ulf Lamping

Am 16.11.2010 03:49, schrieb Petr Morávek [Xificurk]:

The problem with surface is that it is currently proposed (and used) to
describe two different things:
1) A property of certain object, which can be area, way, node...
2) What is on the surface of certain _area_ of land (landcover).

Although there is currently no big overlap between usage (1) and (2) on
areas, I think it would be better to differentiate these two use cases,
so one can easily e.g. filter out and render only landcover map.


So what is the *exact* problem with surface?


Another advantage of specialized tag landcover is that in contrast
with surface it by itself implies area=yes.


So what is the *exact* advantage of landcover?


Sorry, this kind of vague we might want to have xy because someone 
might want to ... is pretty much pointless.


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Re: [Tagging] geology taggin?

2010-11-14 Thread Ulf Lamping

Am 14.11.2010 14:24, schrieb Morten Kjeldgaard:


On 13/11/2010, at 12.40, Ulf Lamping wrote:


How is landcover orthogonal to landuse / natural?


Because you can imagine a landcover area overlapping -- or being a part
of -- a landuse area. For example, landuse=nature_reserve might include
landcover=heath, landcover=trees, landcover=lava_field. And these may
also include areas outside of the nature reserve and be part of an
adjacent landuse=farmyard.


landuse=nature_reserve is your own personal concept. Please have a look 
at (and make yourself comfortable with) the existing map features before 
you discuss here.


If you would now this specific discussion a bit longer, you might have 
known that it was suggested (some time ago) to use some kind of boundary 
for a nature reserve - which would be an improvement IMHO.



OSM tags were not delivered to us on stone tablets. They are constantly
evolving because new and surprising uses and ways of doing things
emerge. Yes, we can use surface=* for everything, roads, buildings,
forests, lakes, banks, restaurants, and so on, and that perhaps makes
sense if you think of the map as a photoshop document where each pixel
only has one colour.


I can argue exactly the same way: Yes, we can use landcover=* for 
everything ...



But those of us concerned future development of the
database, wish for a more expressive and rich set of tagging options,
enabling us to describe more complex circumstances of the world.


You may have to learn that a change isn't always an improvement ;-)

BTW: There was exactly *no* good example, which real world problem could 
be solved with landcover that can't be done with: surface, natural 
and/or landuse.


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Re: [Tagging] geology taggin?

2010-11-13 Thread Ulf Lamping

Am 13.11.2010 12:04, schrieb Morten Kjeldgaard:


On 13/11/2010, at 09.27, John Smith wrote:


On 13 November 2010 15:38, Morten Kjeldgaard m...@bioxray.dk wrote:

Yes, the landcover tag would be very useful in many instances, and quite
orthogonal to landuse. Are you going to write a proposal for it, Martin?


surface=* is currently used to denote the landcover information.


Yes, for example surface=trees. Not very satisfactory is it? The
landcover tag is necessary to bring OSM the next step along in
development, and enables a detailed description for example useful in
science and planning, vis-à-vis the multiple layers idea of Frederik Ramm.


How is landcover=trees any more helpful then widely used landuse / 
natural?!?

How is landcover orthogonal to landuse / natural?

BTW: There is *no* benefit of a new landcover tag compared to existing tags.

Please also have a look at the subject of this thread. This is about 
geology - trees are not part of that AFAIK.


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Re: [Tagging] geology taggin?

2010-11-13 Thread Ulf Lamping

Am 13.11.2010 12:58, schrieb M∡rtin Koppenhoefer:

2010/11/13 Ulf Lampingulf.lamp...@googlemail.com:

Am 13.11.2010 12:04, schrieb Morten Kjeldgaard:
How is landcover=trees any more helpful then widely used landuse /
natural?!?



in the case of landuse: landuse=residential, landcover trees ? Or
natural=beach, landcover trees? Landuse is the _usage_ of an area.



How is landcover orthogonal to landuse / natural?


landuse is the usage of the land, natural is used to denote features
like summits, cave entrances, beaches, bays, ...


No.

Have a look at the natural section of:

http://wiki.openstreetmap.org/wiki/Map_Features

heath, scree, scrub, fell, sand is what you think what landcover should 
be. We already have that.


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Re: [Tagging] I started a draft on a new main key culture

2010-11-07 Thread Ulf Lamping

Am 07.11.2010 14:04, schrieb Sam Vekemans:

Hi,
Adding 'culture=community_center' and culture=community_centre' would helpfull.


although there needs to be a clear difference from 'tourism' key.
perhaps 'tourism' is reserved for things that are designed primarly
for the benifit of visitors to the area, were 'culture' is more for
locals 'cultural activities/things/places.


I came to the conclusion, that deciding if e.g. a museum better fits in 
tourism or leisure is pointless - as it is both and the decision will 
largely depend on your personal bias and the museum in question.



I'll have a better answer in a few weeks.


You may have a look at recent versions of JOSM. I have spend quite some 
time thinking about how to put these into the preset menu so that it 
makes sense.


The solution that made most sense to me (and doesn't take care too much 
about the existing tags) is:


- tourism
- culture
- leisure

Limit tourism to signposts, information bureaus and alike.

Deciding between culture and leisure is a lot easier then ...

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Re: [Tagging] url vs. website

2010-11-04 Thread Ulf Lamping

Am 04.11.2010 06:17, schrieb Paul Johnson:

On 11/03/2010 01:39 PM, M∡rtin Koppenhoefer wrote:

The mapfeatures declare that url should not be used and website should
be used instead. Is this a common agreement? I find url used 3,5 times
more often (260 000) then website (66 800) in the database.


I don't think it's a common agreement by any means, URL is more
universal and includes websites;


Well, url is a bit too generic IMHO and comes from the days when it was 
completely unclear how urls and alike will be tagged by our mappers.



In common use today is:

website=
image=
wikipedia=
email=
(... and url=)

Don't know if that qualifies as url being deprecated though ;-)

For some time there was quite a confusion between url and website, and 
people used url where website really would fit better as it is more 
specific both for mappers and data users alike.


That doesn't mean you shouldn't use url at all, but if you tag the 
website for a specific object, you should use website rather than url.


Think of use url if you know what you are doing, website probably 
better suits what you want to tag :-)



websites excludes many types of URLs.


I've not seen a lot else used than the above mentioned so far ...

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Re: [Tagging] shop=kiosk

2010-10-18 Thread Ulf Lamping

Am 18.10.2010 15:04, schrieb j...@jfeldredge.com:

However, a shop, located in a kiosk, that is selling cigarettes, newspapers, sweets, snacks 
and beverages is not selling kiosks, so labeling it with shop=kiosk breaks the label 
according to the merchandise sold principle.  A shop that sold kiosks would be selling the 
buildings to would-be business people.


So a supermarket is selling super markets?!?

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Re: [Tagging] shop=kiosk

2010-10-18 Thread Ulf Lamping

Am 19.10.2010 00:10, schrieb M∡rtin Koppenhoefer:

could be either food or newspapers/tobacco/sweets/etc. and/or lotto
and/or public transport tickets and/or telephone cards and/or flowers
etc., so it doesn't fit into shop=xy because it doesn't allow to
deduct what is sold/which service is offered (which is the purpose of
the shop-key).

Use building=kiosk for standalone Kiosks and building_part=kiosk or
s.th. similar for shops that are part of a building and sell out of
the window (and are considered to be kiosk according to the mapper).


Hmmm,

Use building=kiosk for a kiosk like building.
Use shop=kiosk for a shop that sells kiosk like stuff.
If something else is sold, use shop=florist, shop=xy ...

Problem solved, next please ;-)

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Re: [Tagging] shop=kiosk

2010-10-18 Thread Ulf Lamping

Am 19.10.2010 01:23, schrieb M∡rtin Koppenhoefer:

my point was that there is no kiosk like stuff


I'm not living in a black and white world - do you?

There's a list of stuff potentially sold in a kiosk (at least here in 
germany).


I don't know if I can buy public transport tickets at a specific kiosk - 
until I ask about it at that kiosk.


Same goes with a supermarket. Do you know if a supermarket will sell you 
a broom? Some will and some won't. We've never had a discussion about 
what the minimum assortment of goods a supermarket has to sell before we 
call it a supermarket. We simply tag it and go on.


If other countries don't have such kind of shops, then don't tag it that 
way - where is the problem?


If other countries have to name it newsstand (although it sells nearly 
the same kiosk like stuff), then tag it as shop=newsstand - where is 
the problem?



Trying to discuss that there's no such thing as kiosk like stuff that 
a kiosk sells is simply bullshit. If you don't have such kiosks or no 
such kiosk like stuff in your country, fine, then don't use the 
shop=kiosk tag.


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Re: [Tagging] emergency=fire_hydrant

2010-10-18 Thread Ulf Lamping

Am 18.10.2010 12:20, schrieb Rodolphe Quiedeville:

Le 18/10/2010 09:31, Rodolphe Quiedeville a écrit :

Hi,

I started rename amenity=fire_hydrant to emergency=fire_hydrant as it is
describe in the wiki. I checked there's no rendering in mapnik styles
and t...@h.

[...]

I forgot to say that I've opened a ticket to fix the JOSM presets :

http://josm.openstreetmap.de/ticket/5537

If someone could say to me how to fix the Merkaartor presets too, I'll
do my best to do it too.


There has been a very lengthy discussion about the emergency category - 
and there wasn't a clear outcome. There wasn't a consensus if the change 
is useful at all and it's still unclear what should be in the emergency 
category and what not.


Then the Wiki was changed without community consensus. Then you seem to 
have made a mass edit without following the code of conduct about mass 
edits.



Now you have the nerve to tell the JOSM developers: The key for fire 
hydrant is false, it's emergency=fire_hydrant instead of 
amenity=fire_hydrant, here a patch to fix the default presets



The JOSM presets are correct and don't need to be fixed. Please revert 
the wiki and your mass edit changes back to it's original state!


The developers have better things to do than these wiki fiddling 
nonsense ...


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Re: [Tagging] emergency=fire_hydrant

2010-10-18 Thread Ulf Lamping

Am 19.10.2010 02:53, schrieb Richard Welty:

On 10/18/10 8:40 PM, Ulf Lamping wrote:


There has been a very lengthy discussion about the emergency category
- and there wasn't a clear outcome. There wasn't a consensus if the
change is useful at all and it's still unclear what should be in the
emergency category and what not.

it looked pretty non-controversial


There wasn't even a consensus in the pro-change fraction what 
qualifies as an emergency and what not.



until a small number of people
started arguing loudly against it.


I've counted 8 individuals that argued against the change at about 20 
(not counted them) total participants. Doesn't look like a small 
number to me.


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Re: [Tagging] shop=kiosk

2010-10-17 Thread Ulf Lamping

Am 17.10.2010 11:52, schrieb M∡rtin Koppenhoefer:

shops should be tagged with shop=shop category, which refers to the
kind of stuff sold, also in cases like supermarket or convenience,
which are less obvious then e.g. shop=electronics.

shop=kiosk breaks this rule, as it doesn't refer to the sold products
but to the building typology.

Therefore I'd like to propose to use building=kiosk and mark
shop=kiosk as deprecated. The 10184 uses of shop=kiosk should be
retagged by local mappers to indicate the product(s) sold (newspaper,
fast_food, lottery-stuff, tobacco, etc.)


For me, a kiosk is a special kind of a (very small) shop, as a 
supermarket is a special kind of shop. We don't tag the kind of stuff 
you'll buy in a supermarket. Same thing here.



However, it is a misconception in the wiki, that shop=kiosk must be a 
special kind of building. A kiosk can just be a window or part of a fuel 
station, or ...



If you find a kiosk, mark it as shop=kiosk.
So if you find a kiosk *building*, you could mark it as building=kiosk.

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Re: [Tagging] Feature Proposal - RFC - rental

2010-09-16 Thread Ulf Lamping

Am 16.09.2010 15:19, schrieb Jonas Stein:

Are there tags missing?
Any other issues?

http://wiki.openstreetmap.org/wiki/Proposed_features/rental


Yes, it's simply a bad idea.

E.g. a car rental station is very different from a ski rental station. 
It looks quite different, it's used for a very different purpose, 
amenity=car_rental is already well established, ...


This proposal has been already discussed on the german ml and the 
problems with this proposal won't go away if you announce it here.


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Re: [Tagging] Feature Proposal - RFC - rental

2010-09-16 Thread Ulf Lamping

Am 16.09.2010 21:21, schrieb André Riedel:

2010/9/16 Ulf Lampingulf.lamp...@googlemail.com:

Am 16.09.2010 15:19, schrieb Jonas Stein:


Are there tags missing?
Any other issues?

http://wiki.openstreetmap.org/wiki/Proposed_features/rental


Yes, it's simply a bad idea.

E.g. a car rental station is very different from a ski rental station. It
looks quite different, it's used for a very different purpose,
amenity=car_rental is already well established, ...


A shop=car is also very different from a shop=ski or shop=supermarket
but it does exists in the same category shop.


Well, Sixt will very rarely sell you a car, but a ski rental station 
very often will also sell you ski if you like.


I'm not saying that the rental tag is generally a bad idea (I've 
recently added this to JOSM presets to indicate rental services for 
shop=motorcycle).


What I'm saying is that there are places that will exclusively rent you 
something, and other places that will rent you something but also sell 
it to you, repair your own stuff and alike.


So there are situations like amenity=car_rental where a standalone tag 
makes perfect sense, while in other situations the rental is only a 
minor part of the business. Putting this somehow all under a rental tag 
still seems a bad idea to me.


Not everything that can be grouped together also should be.

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Re: [Tagging] Feature Proposal - RFC - rental

2010-09-16 Thread Ulf Lamping

Am 16.09.2010 23:11, schrieb André Riedel:

2010/9/16 Ulf Lampingulf.lamp...@googlemail.com:

Well, Sixt will very rarely sell you a car, but a ski rental station very
often will also sell you ski if you like.

I'm not saying that the rental tag is generally a bad idea (I've recently
added this to JOSM presets to indicate rental services for shop=motorcycle).

What I'm saying is that there are places that will exclusively rent you
something, and other places that will rent you something but also sell it to
you, repair your own stuff and alike.


You can use rental and shop at the same time.


So there are situations like amenity=car_rental where a standalone tag makes
perfect sense, while in other situations the rental is only a minor part of
the business. Putting this somehow all under a rental tag still seems a bad
idea to me.


Probably we should use rental=yes or shop=yes if it is only a minor part.

Selling cars and sometimes letting of cars:
shop=car
rental=yes

selling only few ski equipments and rental is the main business:
rental=ski
shop=yes


Very certainly we should keep amenity=car_rental and not switch to 
rental=car just for the sake of tag cleanliness in completely 
unrelated scenarios - and BTW loosing lot's of clarity of the tag usage 
already in wide use.


Replacing current tag usage with something a lot more ambitiuous without 
a real gain is, well, ...


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Re: [Tagging] Feature Proposal - RFC - rental

2010-09-16 Thread Ulf Lamping

Am 17.09.2010 02:55, schrieb M∡rtin Koppenhoefer:

2010/9/16 André Riedelriedel.an...@gmail.com:



Selling cars and sometimes letting of cars:
shop=car
rental=yes



selling cars and renting motorbikes.
shop=car
rental=yes?


Better use the syntax of the proposal: selling cars and letting of cars:
shop=car
rental=car



selling only few ski equipments and rental is the main business:
rental=ski
shop=yes



renting ski and located in a shop
rental=ski
shop=yes?

I won't use shop or rental with yes/no because it is against the convention.


I don't know which convention you are talking about, as there is none 
today in that regard.


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Re: [Tagging] is tourism a good category for everything cultural?

2010-08-24 Thread Ulf Lamping

Am 24.08.2010 09:36, schrieb Ross Scanlon:

Well, I will take a change to 'troll' again about it. This discussion
comes up again and again because we don't have:
a) clear tagging guidelines (*not* rules)
b) mechanism to replace tags


Agree totally.

This (b) would be easily recitified by normalising the database in regards to 
tags.


So how do you easily: normalise the mappers minds, renderers, editing 
software in regards to tags?!?


Over several years past now, I have seen this discussions come and go. 
When someone was actually doing something, it usually ended up in a mess 
of wiki, mappers, editors and renderers disagreeing how to tag 
something. A confusion causing a *lot* more harm than any good.


It's simply a misconception, that just cleaning up the tag names will 
lead to an easier mapping experience.


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Re: [Tagging] is tourism a good category for everything cultural?

2010-08-24 Thread Ulf Lamping

Am 24.08.2010 10:29, schrieb Ross Scanlon:

 ...

The renderers would simply have to look in the tagging table to see what needs 
to be displayed.


Sounds to me that you have absolutely no clue how OSM is actually working.

Regards, ULFL

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Re: [Tagging] craft= Proposal

2010-08-24 Thread Ulf Lamping

Am 24.08.2010 10:08, schrieb Peter Körner:

Hi

some months ago I started a craft= proposal in my wiki user space:
http://wiki.openstreetmap.org/wiki/User:MaZderMind/Key:craft
http://wiki.openstreetmap.org/wiki/User:MaZderMind/DE:Key:craft

It has grown over time and I got some questions to move it over to map
features. I'd love to do so and I will also create a JOSM preset for
that new key.

I'd just wanted to ask here if this would be ok for you, too.


Sounds like a good idea to me.


The german and english pages differ a lot in the amount of examples. 
Maybe sync the pages?


Might be a good idea to add few explaining words to the english 
examples, so none native speakers will get it faster.


Please explain (on that page) differences between existing tags and 
craft ones e.g. shop=bakery vs. craft=bakery. Otherwise people will 
guess, which often differ in result :-)


Please use BE: jeweler - jeweller

Regards, ULFL

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Re: [Tagging] is tourism a good category for everything cultural?

2010-08-24 Thread Ulf Lamping

Am 24.08.2010 10:46, schrieb Ross Scanlon:

...

The renderers would simply have to look in the tagging table to see what needs 
to be displayed.


Sounds to me that you have absolutely no clue how OSM is actually working.

Regards, ULFL


Typical.

NFI about database use so you resort to slinging mud.


I have a significant idea about how osm works as I have to integrate it into 
programs I write or contribute to.

If the database was normalised then I'd have a reduction of about 1000 lines of 
code in one program alone.


Hint: OSM is not about database coders saving their time.

Regards, ULFL

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Re: [Tagging] is tourism a good category for everything cultural?

2010-08-23 Thread Ulf Lamping

Am 23.08.2010 23:37, schrieb John Smith:

Martin, So its ok to shift stuff from tourism but not shift stuff from
amenity to emergency?


No it's not ok to wiki-fiddling emergency, or tourism, or cultural or 
whatever - especially not, if a lot of people actually disagree with 
that change.


I've seen that you're trying to win a battle against the state of the 
art*, seems you think it's a good idea to confuse a lot of people by 
editing the wiki.



OSM is *not* about seeking the nicest possible tag name, it's about 
people tagging things.


Regards, ULFL

* 
http://wiki.openstreetmap.org/w/index.php?title=Tag:emergency%3Dfire_hydrantaction=history


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Re: [Tagging] Dancing school

2010-08-16 Thread Ulf Lamping

Am 17.08.2010 00:31, schrieb John Smith:

On 17 August 2010 08:24, Ulf Lampingulf.lamp...@googlemail.com  wrote:

What is the benefit to put this all under amenity=school - and then have a
tag no renderer actually can use, because it is far too generic?


The benefit is an existing tag that isn't very specific, so we could
imply the existing tag to be amenity=school, school=general if there
is no school=* tag.


That's not a benefit, that's only one of the possible definitions.

Implying a specific meaning in the absence of a tag is usually asking 
for trouble. People tend to forget tags while not knowing your 
implication.


Regards, ULFL

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Re: [Tagging] Zone 30 (maxspeed)

2010-07-06 Thread Ulf Lamping

Am 06.07.2010 20:38, schrieb Colin Smale:

On 06/07/2010 18:44, Richard Mann wrote:

I'm not really clear what is the value of tagging a zone, except in
a note. Why not just use the standard maxspeed tag?


+1

Here in NL it warns you that the given road sign (could be maxspeed,
could be some other restriction) is valid until further notice i.e.
until you leave the Zone. Without the Zone indication the restrictions
lose their official validity at the next junction, which leads to speed
limits etc. having to be repeated very frequently. So it is really only
a shorthand notation to save money on signs and to reduce the clutter of
street furniture. The default speed limit in built-up areas is 50kph so
that actually rarely needs to be signed at all. But to make an area
limited to 20kph means it has to be signed explicitly.

It sure would make life easier if you could just draw a (temporary)
polygon and get Potlatch to set maxspeed=20 on all enclosed roads though...


Well, no. Two different things here:

a) What's the actual maxspeed value
b) What's the cause of the actual maxspeed value

Wether b) needs to be tagged or not is a matter of personal opinion - 
further discussions on this are therefore pretty much pointless ...


It was a long and hard discussion on talk-de that b shouldn't be 
replacing a altogether - I'm personally very glad that this concensus 
was made.


If someone want's to specially tag b), I don't see a reason not let him 
do it that way. I'm not doing it but it won't harm anyone and will save 
us from ongoing discussions if we want to tag the actual value OR the 
inherent cause of it (sign, zone, ...).


Regards, ULFL

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Re: [Tagging] Parking for businesses..

2010-05-18 Thread Ulf Lamping
Am 18.05.2010 09:13, schrieb Roy Wallace:
 On Tue, May 18, 2010 at 3:10 PM, Roy Wallacewaldo000...@gmail.com  wrote:

 I propose to add the following to the Parking wiki page, in the table
 of the Tags section, as follows:
 (http://wiki.openstreetmap.org/wiki/Parking)

 Column Key: access
 Column Value: public/customer/private
 Column Element: [node or area]
 Column Comment: Specify the intended users of the parking lot.
 access=public if intended for the general public, access=customer if
 intended only for those who are visiting nearby shops/amenities, or
 access=private if access is more restrictive than access=customer
 (e.g. for staff only, or requiring specific permission).

 Sorry, let me try that definition one more time:

 Specify the intended users of the parking lot. access=public if
 parking is available for general public use; access=customer if
 parking is only for those who are visiting nearby shops/amenities;
 access=private if access is otherwise restricted (e.g. for staff only,
 or requiring specific permission, etc.). Only use access=customer or
 access=private if this restriction is signed or otherwise enforced.

 The final sentence is to make the tag verifiable. Thoughts?

Use access=permissive instead of access=customer and you get what's in 
use for years.

Regards, ULFL

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Re: [Tagging] Fast food vs. restaurant vs. cafe

2010-05-05 Thread Ulf Lamping
Am 05.05.2010 06:17, schrieb John F. Eldredge:
 Yes, that is the origin of the term.  However, usage of words shifts over 
 time, often into multiple meanings, depending upon context.  From what I have 
 heard, a coffeehouse in Amsterdam, Holland, now means a place that sells 
 marijuana, not one that sells coffee.

It's called a coffee shop[1] and those are available throughout the 
netherlands. You can buy soft drugs and soft drinks (maybe a coffee) for 
local consumption, but you'll often won't get any cakes or alike or any 
alcohol there.

But seeking for corner cases throughout the world is probably not the 
best way to find a good way to tag things. I guess even most dutch 
mappers won't tag a coffee shop as amenity=cafe, because the main 
purpose to get there is not to get a coffee.

Regards, ULFL

[1] http://en.wikipedia.org/wiki/Cannabis_coffee_shop

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Re: [Tagging] Fast food vs. restaurant vs. cafe

2010-05-05 Thread Ulf Lamping
Am 05.05.2010 07:47, schrieb Roy Wallace:
 On Tue, May 4, 2010 at 6:22 PM, John Smithdeltafoxtrot...@gmail.com  wrote:
 On 4 May 2010 18:14, Roy Wallacewaldo000...@gmail.com  wrote:
 1) allow for the specification of more than one type simultaneously,
 e.g. amenity=A;B, amenity=B;C, etc., or
 2) change/specify in more detail the definitions of A, B and C so that
 they *are*  mutually exclusive, or
 3) be forced to tag things incorrectly

 Which option shall it be? I vote 2, which includes the option of just
 using amenity=D (where D=A OR B OR C)

 Do you have any concrete examples?

 So, I've been asked for a concrete example, presumably referring to
 how to define fast_food/restaurant/cafe *mutually exclusively*. I
 looked at the current wiki definitions for all three tags, and these
 are the best, new *mutually exclusive* definitions I could come up
 with, in the form of a flowchart:
 http://img94.imageshack.us/img94/1179/amenity.gif

 If you have suggestions to improve the flowchart, that's great - the
 main point is that, I believe, it is possible to precisely define the
 definitions of cafe/amenity/restaurant. And, I would suggest a unified
 flowchart in this case makes life easier than comparing three
 separate, vague wiki pages, or by doing mental experiments.

You are asking for black and white definitions/decisions where there's 
lot's of room for grey.

What about a place that serves limited breakfast in the morning, would 
classify as a cafe throughout the day, serves full meals only at noon 
and becomes a bar selling cocktails at night?

What you can do is try to find good descriptions so that most people 
understand what is meant and decide locally how to tag it best. 
Regardless how fine grained you are doing this, there will always be 
corner cases where two people will disagree with each other.

What you just can't do is find a precise definition that is valid 
throughout the world and will be doubtless in all possible situations.


BTW: The flowchart is using highly subjective language 
heavily-advertised pseudo-food which is *very* certainly not a good 
way to find a concensus. Why does it try to offence junk food fans? Oh, 
and the definition of pseudo food will very certainly differ between 
people from the western world and people in africa starving right now.

Regards, ULFL

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Re: [Tagging] Fast food vs. restaurant vs. cafe

2010-05-05 Thread Ulf Lamping
Am 05.05.2010 22:36, schrieb Roy Wallace:

 There's only room for grey (w.r.t. the OSM definitions) if we want
 there to be.

Following the OSM discussions for years now I would say: That's an illusion.

 I think I do understand your point, though, that you think it better
 to keep using these tags in a fuzzy, subjective, variable way
 throughout the world.

Trying to redefine a vague definition existing for years with 
something more exact a lot later on is just asking for trouble.

Regards, ULFL

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Re: [Tagging] Is highway=service, service=drive_thru a good idea?

2010-04-12 Thread Ulf Lamping
Am 12.04.2010 19:54, schrieb Anthony:

 Well, I now see that there are a few.  I still don't understand why,
 though, and I don't think we should keep doing something which makes no
 sense just because we've done it in the past.

It's not (only) because we've done it in the past, it's just a lot 
easier to type because you don't have to remember if it was a space, a 
hyphen or an underscore - you can simply type an underscore and you're done.

Regards, ULFL

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Re: [Tagging] tag proposal image=http:/... .jpg

2010-02-05 Thread Ulf Lamping
Am 05.02.2010 12:26, schrieb Tobias Knerr:
 Sam Vekemans wrote:
 I edited the page 'image'
 feel free to fix / edit/ delete

 http://wiki.openstreetmap.org/wiki/Image

 The problem with this proposal is that there isn't a definition which of
 the several images that likely exist for most objects should be
 referenced. And I expect that it would hard to create one, as there
 aren't any remotely objective criteria defining /the/ image for an
 object - it can always only be /an/ image of the object.

This misses the point. In Wikipedia there's also no definition which of 
the several images that likely exist for most objects should be 
referenced, but Wikipedia has a lot of geo related articles with an image.

 My opinion is that personal preferences like that shouldn't be part of
 the OSM database. No my favourite Sunday walk route relations, no
 subjective food=extremely_tasty for restaurants, and no my favourite
 image of the object either.

There's a big difference between the subjective my favourite walk and 
the objective this is a picture of the object.

Regards, ULFL


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Re: [Tagging] How to tag a flagpole / ~flagstaff?

2010-02-05 Thread Ulf Lamping
Am 05.02.2010 23:56, schrieb John Smith:
 On 5 February 2010 23:53, Jonas Steinn...@jonasstein.de  wrote:
 How to tag a flagpole / ~flagstaff?
 I could not find it in the wiki.

 I had a quick look on the wiki, couldn't see anything.

 try something like amenity=flag_pole and add something to the wiki

Sounds more like man_made to me, like a tower or beacon.

I'd suggest:

man_made=flag_pole

Regards, ULFL

P.S: Quick look at OSMdoc (http://osmdoc.com/en/tags/) found no real 
usage in either way

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Re: [Tagging] Proposed: flagpole

2010-02-05 Thread Ulf Lamping
Am 06.02.2010 03:23, schrieb Jonas Stein:
 Rationale
 Flagpoles are important landmarks.
 Usually they are visible over a long distance.

 http://wiki.openstreetmap.org/wiki/Proposed_features/flagpole

 This is my first proposal i hope everything is correct with it.
 Please contact me if something is wrong,

 kind regards,

Hmmm, you might want to add the actual tagging?

Regards, ULFL

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Re: [Tagging] Offices/non-shop businesses

2010-01-26 Thread Ulf Lamping
Am 27.01.2010 01:46, schrieb Martin Koppenhoefer:
 2010/1/27 Roy Wallacewaldo000...@gmail.com:
 On Wed, Jan 27, 2010 at 8:51 AM, Woll Newallw...@2-islands.com  wrote:

 The appropriate land-use tag is commercial (defined as
 Predominantly offices, business parks, etc.), so maybe such things
 should be tagged commercial=software_development,
 commercial=call_centre etc plus company name in the name tag?

 Not bad, but commercial is an adjective, not a noun.

 you could use commerce instead? still:

 Perhaps
 office=commercial + commercial=* would be better?

 +1, I like this because it also allows for office=non-commercial

Keep it simple:

office=call_centre

Regards, ULFL

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Re: [Tagging] What's a power=station?

2010-01-18 Thread Ulf Lamping
Am 19.01.2010 05:54, schrieb Stephen Hope:
 I wouldn't be so worried about it except for the fact that we use
 English tags exactly so that you can make a good guess as to what the
 data means without having to go to a lookup table.  When almost all of
 the tags are readable, then an incorrect tag like this will just cause
 problems.  In fact , it already has - I did a quick survey of it's use
 in some areas where I know what's actually there.  Some sub-stations
 are marked with power=station (correct according to the wiki) some
 with power=substation.

 I think sub-station and station are both tainted now, unfortunately.

I'm not saying this is a good thing, but:

a) It doesn't really matter for most mappers.

b) It doesn't really matter for almost anyone else ;-)

c) The definitions of these tags were done in ~december 2007 probably by 
germans and the native english speakers didn't even care to correct 
these definitions till now. Since december 2007 it doesn't seemed to 
matter for most people how the actual wording is.

d) I don't think it's a good idea to change a tag description two years 
after it was documented, because the wording is slightly wrong for 
some parts of the english speaking world. Because doing so is an 
annoyance for anyone involved and the wording will *always* be slightly 
wrong for someone. Not to mention that a lot of people won't 
notice/ignore any changes here, as these definitions are old enough in 
OSM terms. My approach: Stick to the wiki definitions even if you don't 
like it and go on mapping :-)

e) Unless someone develops a nice open power distribution map, this 
discussion is pretty much pointless and will continue or flare up 
again endlessly, regardless of what we'll end up with it now. So if you 
are really interested in fixing this power wording problem, go and 
develop such a map. This will motivate the mappers much more to do it 
right than to conform to whatever rules set/changed in the wiki.

Regards, ULFL

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Re: [Tagging] Comparison of tag support: Mapnik, Osmarender, Potlatch, JOSM, Kosmos, Map Features (wiki)

2009-12-14 Thread Ulf Lamping
Am 14.12.2009 10:05, schrieb Steve Bennett:
 On Mon, Dec 14, 2009 at 12:23 PM, Ulf Lamping
 ulf.lamp...@googlemail.com  wrote:
 Yeah, and I think there is an unfortunate problem where the
 wiki/mappers don't want to tell the renderers what to do, and the
 renderers don't want to tell the mappers how to map.

 And I guess this is a good thing.

 I think it would be even better for the mappers to give guidance to
 the renderers, like This tag should be rendered distinctly from that
 tag or the combination of x,y,z should be rendered identically to
 tag w.

The mappers very often can't find a consensus how to tag stuff. In the 
end this would probably mean that lot's of mappers annoy a very limited 
amount of rule writers ;-)

 I guess this is also a lack of man power. Don't underestimate the amount
 of time that is needed here. Having the actual usage numbers from e.g.
 OSMDoc[1] would really help here.

 Yeah, I was just having a look at tagwatch, which has usage numbers
 for the few hundred tags that are explicitly referred to in the wiki.
 Can't see how to get global numbers though - only by continent. I may
 try and integrate these numbers, but I'm a bit wary of what they mean.
 (eg, one bulk import of 10,000 nodes with a certain tag should not
 necessarily count for more than 8,000 nodes created manually by 20
 different mappers.

True. But I'm not sure if this is an often found problem in this case.

BTW: tagwatch has a problem especially with the most used keys, see:

http://tagwatch.stoecker.eu/Europe/En/keystats_amenity.html

It will stop adding new values to the key list, if there are 300 items 
already accounted (IIRC due to memory reasons). So these numbers has to 
be taken with caution.

 It might be better to think in terms of core tags and specialist
 tags or something. If something is core, we expect all decent
 renderers to render it.

 How do you enforce this with people doing the renderer maintenance in
 their spare time? ;-)

 I didn't say enforce! All I'm saying, is you give a list of
 priorities, like all renderers should support these tags. Just like
 when you saw what the other renderers are doing, I think programmers
 would be inspired to implement that kind of list. And obviously
 certain kinds of tags can be implemented very easily, just with a
 colour or whatever, while others are harder.

With all the stuff we already have, nothing is very easy to implement 
as adding new stuff will make it harder to read the existing stuff on 
the map :-)

Maybe a top hundred of mostly used, but not rendered tags would be 
nice. I've started something similiar some time ago, but you'll have to 
somehow filter out tags that won't be interesting, e.g. created_by will 
be very often used but usually not rendered on a street map (although 
osmarender once rendered it). I guess, this filter will look quite 
different for the different renderers.

 I think its a much better way to display each renderer maintainer: Look,
 these are the tags that x, y and z are rendering and you don't. Maybe
 you've just missed it? And also the other way round: No one else is
 rendering x=y, maybe this is a bug?

 Yep. And the one I'm concerned about, renderer X supports tag A,
 renderer Y supports tag B, yet A is pretty similar to B. The mass of
 landuse=* and natural=* are pretty haphazard - I don't think any sharp
 distinctions are being recorded.

Maybe as a first step we'll iron out the unintended differences between 
the renderers. That would already be a huge success! If this is done 
(and this will take some time and effort) then look at the missing 
definitions.

 As mentioned already, the next best step IMHO would be to have the
 actual usage numbers from OSMDoc.

 However, it's up to you what you do with your free time :-)

 Doesn't mean I don't want suggestions!

 [1] http://osmdoc.com/de/tag/sport/

 Is there a way to get a big dump from this? I can only see a way to
 access one key at a time.

 Fascinating stuff, though. I note the usage of
 leisure=nature_reserve, natural_reserve and nature_preserve.
 Also, 457 leisure=swimming_pool, but 7188 sport=swimming.

Hint: Don't try to get it all right in one rush, it will only make you 
mad ;-)

If you look at OSMdoc or tagwatch, you'll find a *lot* of stuff that 
won't make sense (at least when you first look at it) and you'll find 
lot's and lot's of typos.

Regards, ULFL


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Re: [Tagging] Comparison of tag support: Mapnik, Osmarender, Potlatch, JOSM, Kosmos, Map Features (wiki)

2009-12-14 Thread Ulf Lamping
Am 13.12.2009 11:35, schrieb Steve Bennett:
 Sorry for the spam. Sort of. :)

 http://wiki.openstreetmap.org/wiki/User:Stevage/tagsupport

 This is getting interesting. Side by side are now Mapnik, Osmarender,
 Potlatch, JOSM, Kosmos, and the Map Features wiki page. It's rather
 amusing, if a little depressing, seeing how little correlation there
 is. In particular, documenting a tag in the wiki seems to have little
 relationship with how well supported it is. The number of redlinks
 (undocumented tags) is also somewhat alarming - we should get into the
 practice of documenting every tag, regardless of whether it has any
 official status.

 Your comments welcome!

Stephan Wolff gave some comments on talk-de that I'll try to translate:

a) which versions of the programs / rules are displayed? How old is the 
table?

b) what does highway=* or man_made=* mean?

c) why is that power=line and power=tower and lot's of others 
displayed in the map have no entry in the Mapnik column?

d) will a tag be displayed as node, way, area or only one of them?

e) for mapnik and osmarender the minimum zoomlevel would be helpful


My comments on this:
a) a creation date would be really nice
b) was obvious for me - but I'm a developer myself :-)
c) maybe a bug?
d) would be helpful but probably clutter the table a lot
e) would be helpful but not critical (any probably clutter the table a lot)

The questions were already answered on talk-de, but this might give you 
an idea of what the table is missing for the interest of normal 
mappers :-)

Regards, ULFL

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Re: [Tagging] Comparison of tag support: Mapnik, Osmarender, Potlatch, JOSM, Kosmos, Map Features (wiki)

2009-12-14 Thread Ulf Lamping
Am 14.12.2009 11:02, schrieb Pieren:
 What is core and what is not ? What is in the wiki Map Features ?
 But anyone can add his tag, approved by 10 or 12 voters in the Map
 Features...
 You cannot fix priorities for other people creating the data or other
 applications using the data. What is the core for OpenCycleMap is
 not the same as the core for OpenWaterwayMap, OpenCrimeMap,
 OpenHikingMap, OpenShopMap, OpenTourismMap, OpenSchoolMap, etc...
 You are really expecting too much from the rendering side of the
 project.

At least for the OSM based maps I've seen so far, the core of features 
that a map wants to display is often very similiar: streets, rivers, 
forest, ... plus some special interest stuff specific to this map. This 
isn't true for all maps and obviously maps will use different styles 
(colors, thickness, ...) to display these core features in different ways.

However, having a list of features that a lot of other maps are 
displaying will very certainly help map makers in choosing the things 
they want to display. I don't see this as a has to be implemented but 
as a toolbox for mapmakers. Just don't underestimate the amount of time 
to get such a knowledge.

 What we need is a clear definition of the tags and this is
 done by searching a consensus on the wiki and on this list and we see
 if we succeed or fail with the statistics.

We have e.g. lot's of highway=path in the database and no one (except 
the mapper) really knows what this *exactly* means in a specific case, 
as there is more than one definition out there. But statistics just 
can't tell you anything about this semantic.

 If we don't have a common
 definition of the tags, we end up with different rendering rules and
 even worst, with different tagging presets in the editors.

The rendering rules doesn't matter a lot in this regard. It only 
displays a cycleway with a certain color, thickness and such - so it can 
be recognized as a cycleway. What the mapper wants to describe with 
highway=cycleway and what a map user understands out of this is 
basically out of the scope of the map display.

 So, what we have to do first, if we have to fix priorities, is to
 improve the definitions of the tags, avoid duplicates or changes in
 the meaning of the tags one year or two after their creation (e.g. the
 other thread about cycleway on this ML).

I just don't know how to stop mappers from using a tag in a way they 
want to use it :-)

Regards, ULFL

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Re: [Tagging] Comparison of tag support: Mapnik, Osmarender, Potlatch, JOSM, Kosmos, Map Features (wiki)

2009-12-14 Thread Ulf Lamping
Am 14.12.2009 11:59, schrieb Steve Bennett:
 On Mon, Dec 14, 2009 at 9:02 PM, Pierenpier...@gmail.com  wrote:

 Btw, I do think that OpenHikingMap should interpret highway=cycleway
 exactly the same way as OpenCycleMap, OpenSwimMap,
 OpenMarijuanaMap...etc. They will each render it differently, but it
 should *not* be the case that cycleway means a paved surface in
 OpenSwimMap but it means a mountain biking trail in OpenHikingMap.

 Does that make sense? It's pretty important.

Till today I only have seen maps that rendering a cycleway only with a 
specific visual representation. It was up to the user to get the 
semantic behind the magenta thin line

The real problems now showing up with the routing software, there it 
is essential to distinguish between surfaces, if it's legal to use the 
way (or not) and all such details.

 You are really expecting too much from the rendering side of the
 project. What we need is a clear definition of the tags and this is
 done by searching a consensus on the wiki and on this list and we see
 if we succeed or fail with the statistics.

 Absolutely. I'm only constantly referring to the renderers because
 they're the physical manifestation of that definition. There may be
 other uses of OSM data, but the renderers matter the most.

Well, not in the regard that you seem to have in mind :-)

 So, what we have to do first, if we have to fix priorities, is to
 improve the definitions of the tags, avoid duplicates or changes in
 the meaning of the tags one year or two after their creation (e.g. the
 other thread about cycleway on this ML).

 Yes. Part of the process fixing a tag may involve mass updates to
 existing data, or, more painfully, deprecation and a slow, manual
 check and update.

Mass updates will often be seen as a bad move :-)

Regards, ULFL

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Re: [Tagging] Comparison of tag support: Mapnik, Osmarender, Potlatch, JOSM, Kosmos, Map Features (wiki)

2009-12-13 Thread Ulf Lamping
Am 14.12.2009 01:29, schrieb Steve Bennett:
 On Mon, Dec 14, 2009 at 11:13 AM, Ulf Lamping
 ulf.lamp...@googlemail.com  wrote:
 Partly because of differences in the intention of the renderers. It
 makes a difference if you want to have a nice map or if you want to aid
 in editing.

 Yeah, of course. The hypothetical SkiOSM renderer would support
 different tags from CampusOSM renderer. But there are lots of
 differences that can't really be accounted for that way. Why does JOSM
 support proposed= when the wiki explicitly prohibits it, for
 example? :)

Where does proposed= is prohibited in the wiki?!?

  And lots of other little examples.

Yes, a lot are probably simply bugs.

 Why on earth does Osmarender support sport=curling (when nothing else
 does), but not basketball, baseball... Why do all the editors/wiki
 propose a huge range of sports, but the renderers essentially ignore
 it all?

Well, as I've said. Different people write different rules and have 
different interests :-)

 (I had thought sport=chess would be a joke, but I've already used it
 three times just in my suburb!)

 But also because different people are writing the rules. I think most of
 the people working on mapnik, osmarender, Kosmos or JOSM won't often
 work also with other renderers at the same time.

 Yeah, and I think there is an unfortunate problem where the
 wiki/mappers don't want to tell the renderers what to do, and the
 renderers don't want to tell the mappers how to map.

And I guess this is a good thing.

 There's a lot of second guessing.

Having an overview now, what the other renderers are doing is a good 
way to encourage anyone to become better here.

I guess this is also a lack of man power. Don't underestimate the amount 
of time that is needed here. Having the actual usage numbers from e.g. 
OSMDoc[1] would really help here.

 There is also other stuff, e.g. the widely used piste map things that
 are documented at:

 http://wiki.openstreetmap.org/wiki/Proposed_features/Piste_Maps.

 Jeez, there's something seriously wrong in this whole
 proposed/approved process. People put a lot of work into describing
 a feature, but because it's not clear what action it's trying to make
 happen, the thing just dies. (Yes, I vote to make it possible
 to...uh...continue to do what I already do.)

The voting process was actively torpedoed by some people some time ago :-(

 It might be better to think in terms of core tags and specialist
 tags or something. If something is core, we expect all decent
 renderers to render it.

How do you enforce this with people doing the renderer maintenance in 
their spare time? ;-)

I think its a much better way to display each renderer maintainer: Look, 
these are the tags that x, y and z are rendering and you don't. Maybe 
you've just missed it? And also the other way round: No one else is 
rendering x=y, maybe this is a bug?

 In all my suddenly non-existent free time, I intend to make a pass
 over a lot of these redlinks, adding descriptive entries, at least.
 (This tag appears to be used in germany, it's supported by ... etc.)

As mentioned already, the next best step IMHO would be to have the 
actual usage numbers from OSMDoc.

However, it's up to you what you do with your free time :-)

Regards, ULFL

[1] http://osmdoc.com/de/tag/sport/

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Re: [Tagging] kosher amenities

2009-10-16 Thread Ulf Lamping
Liz schrieb:
 On Fri, 16 Oct 2009, Lennard wrote:
 BTW2: It's halal. What you lack in replying restraint, you make up for
 with extra letters?
 My keyboard doesn't write Arabic, but I'm quite sure it ain't halal or 
 hallall 
 or halall - that any transliteration is probably missing something 

I've seen both halal and hallal written in Nuremberg turkish cuisine 
restaurants.

Anyway:

http://en.wikipedia.org/wiki/Halal

So we might want to use the term halal (for presets, rendering rules, 
...), but hopefully won't get upset if some mappers use one of the 
transliterations :-)

Regards, ULFL

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