Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Ari Torhamo
pe, 2008-05-02 kello 00:28 +0200, Martin Simon kirjoitti:
> Am Donnerstag, 1. Mai 2008 13:37:32 schrieb Andy Robinson (blackadder):

> OK, you're totally right at this, it seems difficult to define structure of 
> road surfaces - several proposals in the wiki exist, but none seems to have 
> seen broad use in actual mapping - in short, I do'nt have a solution.
> But the need for some reliable, robust and versatile surface tagging method 
> seems to be there, as there are ~3 proposals in the wiki to renew/extend 
> surface tags.
> And I really do think its better to do this now than to re-tag specific 
> vehicle-based tags in the future.

Just an idea: what about having a separate tag for the "driveability" of
the surface. Even when the surface material is basically the same, the
driving experience with a bicycle my vary relatively much. The
driveability tag could be used when driving experience is different from
what one might expect based on the track type or the surface material of
the track. For example, grades like -1, -2, or +1 and +2 could be used
when the driving experience is worse or better than expected. 

This is indeed just an idea - I'm not making a more detailed suggestion,
because I have very little experience with tagging (or anything else
regarding OpenStreetMap :-)

Cheers,

Ari Torhamo


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Re: [OSM-talk] [OSM-dev] The future of Potlatch

2008-05-01 Thread Christopher Schmidt
On Fri, May 02, 2008 at 12:24:35AM +0100, Tom Hughes wrote:
> In message <[EMAIL PROTECTED]>
>   "Tom Carden" <[EMAIL PROTECTED]> wrote:
> 
> > I think the fact that it has its own API is a much bigger concern than
> > it being written in AS 1.0 is.  If Potlatch was using the main API,
> > development of API-backed features in Potlatch could be shared by
> > other editors too.  Any tests written for the API would help Potlatch.
> >  Any changes to the schema would only have to happen once. etc. etc.
> 
> I think most of us (with the possible exception of Richard) would
> agree here.
> 
> Well actually I don't mind the existence of the AMF API as such so
> long as it is just concerned with decoding the RPC calls and encoding
> the results, and it uses the rails object model to do all the work
> so that important code is shared with the XML API.

There's an important difference between this and "Potlatch using the
main API".

There are, I believe, some things that Potlatch can do that no
other client can do, because the API to do it is not available.

Specifically:
 * whichways_deleted gets deleted ways in a bbox, which the main API
   doesn't provide
 * getway_old has a "last deleted version", which seems different

More problematic than the specific methods which do or don't exist,
however, is the fact that the Potlatch way of interacting with them is
*entirely* different -- so when a bug is fixed in the main API, the fix
has to be duplicted in the Potlatch/amf_controller.

This affects development of the server side APIs. You, at one point, put
forward a significant amount of effort in improving the Rails code in
amf_controller: that work benefited only Potlatch. If Potlatch was using
the same backend rails calls (rather than just objects/models), then
that development time could have benefited other clients as well.

Potlatch has a very different way of interacting with the API. This way
of interacting with the API has some benefits, and could allow for
other clients similar to Potlatch to be developed without being tied
explicitly to amf_controller, which is (at least at the moment)
essentially Potlatch specific. (Things like 'masterscale' and
'potlatch_lon' seem to be indicate this anyway: maybe I'm wrong here.)

I don't know amf: I see from the code that it's Actionscript Message
Format. If there is a desire for supporting Actionscript Message Format 
for API actions, I don't see a problem with that at all: In fact, other
encodings of OSM data delivered via the API seem a natural progression
to me. (I'm biased here, having done this with TileCache, FeatureServer,
WPServer, etc.) But I don't see that that means that Potlatch should
have access to API methods which simply don't exist to any not
potlatch-clients (or that clients would have to speak the same language
as Potlatch to use them).

> We have in fact started moving towards that goal with some work
> that Steve did on some of the AMF calls.

This is a different goal, that of replacing SQL with rails objects. A
valuable goal, but not the same as abstracting the data selection calls
to a single set of code, and then using that code to serve both the main
API and amf_controller.

> The problem is that it turned out that, even after I had optimised
> the code, it is significantly slower to go through the rails object
> model that to make direct SQL queries.

This is interesting, but (imho) less relevant: The value of the above is
actually doubled by this statement, since if Potlatch and the API were
using the same function, one could optimize this, and since the code is
used by *all* clients (not just one) you would see any problems with SQL
calls more generally, and perhaps find it easier to debug them. (I think
this is compounded by the fact that AMF is a format which is hard to
replicate outside of a flash client, which makes server side developers
less likely to have the technical chops to debug them.) A common library
for API functionality between amf_controller and the various
api_controller methods would help resolve this to some extent.

> I think even Richard wouldn't mind too much making the AMF API use
> the rails object model if it wasn't for the performance issues.

Using the Rails Object Model is solving an *internal* API issue, but
there still continue to exist two external APIs that use different
backend data manipulation to achieve their goals. This seperation is
what I see as more problematic -- and I think that's what Tom was
addressing as well, though I could be wrong. 

Regards,
-- 
Christopher Schmidt
MetaCarta

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Re: [OSM-talk] [OSM-dev] The future of Potlatch

2008-05-01 Thread Tom Hughes
In message <[EMAIL PROTECTED]>
  "Tom Carden" <[EMAIL PROTECTED]> wrote:

> I think the fact that it has its own API is a much bigger concern than
> it being written in AS 1.0 is.  If Potlatch was using the main API,
> development of API-backed features in Potlatch could be shared by
> other editors too.  Any tests written for the API would help Potlatch.
>  Any changes to the schema would only have to happen once. etc. etc.

I think most of us (with the possible exception of Richard) would
agree here.

Well actually I don't mind the existence of the AMF API as such so
long as it is just concerned with decoding the RPC calls and encoding
the results, and it uses the rails object model to do all the work
so that important code is shared with the XML API.

We have in fact started moving towards that goal with some work
that Steve did on some of the AMF calls.

The problem is that it turned out that, even after I had optimised
the code, it is significantly slower to go through the rails object
model that to make direct SQL queries.

Of course that probably affects the main API as well, it's just that
it doesn't appear as a regression in that case in the way that it
does with the AMF API.

I think even Richard wouldn't mind too much making the AMF API use
the rails object model if it wasn't for the performance issues.

Tom

-- 
Tom Hughes ([EMAIL PROTECTED])
http://www.compton.nu/

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Re: [OSM-talk] New Potlatch

2008-05-01 Thread Richard Fairhurst
[EMAIL PROTECTED] wrote:

>> - When you add a point into a way where it crosses another way,
>> Potlatch automatically makes an intersection.
>
> Is this 'feature' able to be turned off? Otherwise I would consider  
> it a
> bug as it means that you can't do bridges over other ways.

It's only when you shift-click (to insert a point) on a way directly  
over another way. In other words, if you have

   |
---
   |

then shift-clicking the 'crossing' will create a junction. That's the  
only difference.

Previously, you'd have to go through all sorts of shenanigans with  
splitting the way etc.

It certainly doesn't automatically make a junction when you're  
drawing, so you can create bridges exactly the same way as you would  
previously. Typically, for a bridge, you wouldn't have nodes at the  
same place anyway - you'd usually have one at the start and one at  
the end of the bridge. Assuming a straight bridge, that is!

cheers
Richard

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Re: [OSM-talk] New Potlatch

2008-05-01 Thread simon
> - When you add a point into a way where it crosses another way,
> Potlatch automatically makes an intersection.

Is this 'feature' able to be turned off? Otherwise I would consider it a
bug as it means that you can't do bridges over other ways.

Mungewell.



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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Martin Simon
Am Donnerstag, 1. Mai 2008 13:37:32 schrieb Andy Robinson (blackadder):
>
> It was because of the difficulty of defining unpaved surfaces that this
> thread branched off. If you can come up with a method for tagging the
> make-up of natural surfaces then great, but its not easy in my view or I'd
> be using them already.
>
> Cheers
>
> Andy

OK, you're totally right at this, it seems difficult to define structure of 
road surfaces - several proposals in the wiki exist, but none seems to have 
seen broad use in actual mapping - in short, I do'nt have a solution.
But the need for some reliable, robust and versatile surface tagging method 
seems to be there, as there are ~3 proposals in the wiki to renew/extend 
surface tags.
And I really do think its better to do this now than to re-tag specific 
vehicle-based tags in the future.

-Martin

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Re: [OSM-talk] [OSM-dev] The future of Potlatch

2008-05-01 Thread Tom Carden
2008/5/1 Richard Fairhurst <[EMAIL PROTECTED]>:
>
>  CloudMade (Steve and Nick's VC-funded company set up to commercialise
>  OSM data, www.cloudmade.com) wants to commission a new online Flash
>  editor for OSM. It would, I believe, probably be written by developers
>  from Stamen Design (www.stamen.com): some of you will remember that
>  Stamen's Tom Carden wrote OSM's early Java editing applet, and they've
>  also written a slippy map in Flash called Modest Maps.
>

I'll be up front here - I have spoken informally to Steve about the
potential of us working on this, but nothing formal has been arranged.
 I'm not sure whether Stamen would take this project on, or what our
availability is, or any of that - I only speak for myself here and not
the company.  If Stamen did work on it, there'd be no guarantee that I
would be personally involved.

Steve (or anyone else you've talked to) shouldn't be talking about a
potential business relationship that doesn't exist yet, nor should
they be holding it over you as a (dubious) incentive to improve
Potlatch to their liking.  I'm sorry if that's what's happened.

>  As you can imagine, this has taken me aback a bit.
>
>  As I understand it, their main issue is a technical one. Potlatch is
>  written in ActionScript 1, which is the same language as JavaScript,
>  but for Flash. The latest version is ActionScript 3, which is much more
>  like Java for Flash. The end user doesn't notice a difference, but the
>  programming style is very different.
>
>  CloudMade believes this is holding back the development of OSM: that if
>  the editor were written in the latest version of the language, more
>  Flash designers would come to work on it, resulting in a better editor.
>  Steve cites OSM's move from pure Ruby to Ruby on Rails as an example of
>  how a contemporary language encourages more people to contribute. And
>  they're also worried that if I were run over by a bus then no-one would
>  be able to speak ActionScript 1 and maintain Potlatch.
>

Since I'm here, I will offer my own opinion about perceived hurdles to
developing Potlatch. I'm aware that this might be an inappropriate
place to do so, given that I'm somehow implicated in your
taken-aback-ness, above, but I think it's worth adding...

I think the fact that it has its own API is a much bigger concern than
it being written in AS 1.0 is.  If Potlatch was using the main API,
development of API-backed features in Potlatch could be shared by
other editors too.  Any tests written for the API would help Potlatch.
 Any changes to the schema would only have to happen once. etc. etc.

>  I'm not so sure. I think people are beginning to contribute code to
>  Potlatch; that as essentially JavaScript it's approachable enough; and
>  that the problems of attracting developers is symptomatic of core OSM
>  in general (as per http://trac.openstreetmap.org/log/sites/rails_port).
>
>  I hope that Potlatch, as something maintained by an active community
>  participant _for_ the community, has demonstrated a pretty rapid rate
>  of improvement anyway. It's meant to be small and compact, of course,
>  not a a bells-and-whistles editor like JOSM: nonetheless, in the last
>  few months, for example: it's become the only editor yet to offer
>  revert/history, gained very good relations support, background layers,
>  flexible GPX import, etc. And there's a lot of stuff on the way, mostly
>  focusing on usability - from a generic 'undo' and pop-up help panel to
>  a new, super-user-friendly tagging panel with draggable POI icons and
>  things like that. It's got faults, everything has, but it's come a long
>  way in the last year. For what it's worth I think it's the best thing
>  I've ever coded.
>

It's certainly leaps and bounds ahead of the applet I wrote, I have no
problem admitting that!

>  For most purposes AS3 probably is a better language - except for the
>  fairly major proviso there's no open-source player even in development.
>  Indeed, if I were starting all over again I'd probably do it in AS3,
>  and in a couple of years I may well migrate Potlatch to AS3 (or 4, or
>  whatever) anyway. But right now it's more important to spend time
>  improving usability for mappers, given that - like most people here - I
>  do have a full-time job which isn't OSM (which isn't computer-related
>  at all, in fact) and consequently time is not unlimited.
>

You're right I think.  API aside, the main reason to move to AS3 would
be speed, the availability of more libraries and better development
tools, and the larger developer community that Couldmade cites.
Certainly though, the lack of a solid open source platform to run AS3
code on is an issue for a project like OSM.  Not so much for a
business like Cloudmade though, I expect.

I think the rest of this thread has already covered the fact that
there has to be room for more than one editor in the OSM eco-system
(and I point people to OAuth as a way to open that up), but that the
Edit tab o

Re: [OSM-talk] [OSM-dev] The future of Potlatch

2008-05-01 Thread Frederik Ramm
Hi,

> [warning - long ponderous e-mail follows!]

I don't really see much of a problem with mutliple Flash editors being
available. If they get something done that's better than Potlatch, why
then it's good for all is it not?

In general I have a problem with the built-in "uniqueness" of Potlatch
or anything that might replace it; Potlatch is "the" OSM editor, the
one that comes up if you click "edit" on the main OSM page. Until now
Potlatch has enjoyed this privilege because there was no other
suitable editor. If there are many competing editors - which one will
get the "pole position" on osm.org?

The editor and the features it supports will always very strongly
influence what people map and how they do it. With JOSM, the concept
is reasonably open; anyone can compile and run their own JOSM and make
it available to third parties (as anyone using JOSM will not have
difficulties running a program obtained from somewhere else), and
plugins can be written and distributed. So even if JOSM were the only
editor around, its grip on what people map and how they do it would
not be very strong, since anybody with, say, an interest in turn
restriction relations could provide a plugin that would make them
editable nicely.

Correct me if I'm wrong but Potlatch is, and any AS3 replacemend would
be, a much more controlled environment, where the user has much less
say in what editor and what features they want - you cannot simply run
your own version of the editor against the live API, nor can you have
local plugins or so.

So that's the one doubt I would have - it must not come to CloudMade
dictating what's behind the "Edit" tab on openstreetmap.org. But that
could easily be alleviated by creating a set-up where *anybody* can
operate an OSM editor on their site. In fact I would prefer that even
now; give the user a choice whether his "edit" tab leads to Potlatch on
RichardF's host or to the AS3 flash editor at cloudmade.com or the
100% javascript editor from crschmidt (or maybe even the JOSM applet),
and anybody who thinks their editor is even better may add it to the
list. 

If this core issue is resolved - i.e. the osm.org web site does not
specifically endorse one editor and fail to list others - then I'd
really say competition is good for all of us.

I could imagine that if anything suppresses creativity in the current
setup, it is not the fact that you use AS1; it is the fact that
anything anybody wants to do has to be run by you and/or the people
with [EMAIL PROTECTED] and only if you say yes then it gets into "the" editor,
whereas with a project that doesn't depend on integration with the
osm.org site (like Merkaartor or JOSM), you can simply try out
something and offer it to people for immediate live use, even if the
maintainer has completely different plans and doesn't like the
concept.

(But then again, look at the one-digit number of developers even with
JOSM and Merkaartor... so don't excpect a boost if you make Potlatch
less monopolistic.)

> Part of me thinks that the most important thing is that Potlatch is 
> still available and users are offered the choice. Part of me thinks, 
> well, if there's going to be a new Flash editor, there's no point in me 
> doing any development on Potlatch from today forward. Part of me wants 
> to say "well, screw you" and walk away. And part of me wants to take 
> CloudMade up on its OSM Grants scheme (http://blog.cloudmade.com/) and 
> say, ok then, I'll announce a medium-term feature freeze, take a few 
> weeks' holiday, learn AS3 and recode it for a large amount of $$$. I'm 
> utterly stumped and would welcome suggestions.

As an OSM community member I would like you to continue with your work
and someone else do an AS3 editor for CloudMade, and then I want them
both available on osm.org so that I can choose the one I like best (or
the one that runs with my hardware/OS best, ot whatever). If you
stopped working on Potlatch altogether, or if you re-did Potlatch in
AS3, then that would leave me (the user) with less choice. Diversity
is good.

If I were in your shoes however, I might go for the $$$. $$$ is also
good.

Bye
Frederik

-- 
Frederik Ramm  ##  eMail [EMAIL PROTECTED]  ##  N49°00'09" E008°23'33"


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Re: [OSM-talk] The future of Potlatch

2008-05-01 Thread 80n
Richard
This is an interesting dilemma.  First you should be proud of the fact that
Potlatch is such a well regarded part of OSM.  In some strange way it is
flattery that CloudMade want to do this.

Everybody knows how hard you have worked on Potlatch, and it is a very
emotional thing to have someone want to take your baby away.

If there is room for two editors within the OSM project, then there's
probably room for three.  You might find that it gives you the opportunity
to take Potlatch in a slightly different direction.

Try to see it as a positive thing.  More editors means more competition,
which will surely result in more innovation and better tools for everyone.

80n


On Thu, May 1, 2008 at 6:35 PM, Richard Fairhurst <[EMAIL PROTECTED]>
wrote:

> [warning - long ponderous e-mail follows!]
>
> Hi all,
>
> A fairly weighty issue concerning the future of Potlatch has arisen,
> and I'm completely baffled as to what to do - so I thought I'd "ask the
> community" for thoughts and advice.
>
> CloudMade (Steve and Nick's VC-funded company set up to commercialise
> OSM data, www.cloudmade.com) wants to commission a new online Flash
> editor for OSM. It would, I believe, probably be written by developers
> from Stamen Design (www.stamen.com): some of you will remember that
> Stamen's Tom Carden wrote OSM's early Java editing applet, and they've
> also written a slippy map in Flash called Modest Maps.
>
> As you can imagine, this has taken me aback a bit.
>
> As I understand it, their main issue is a technical one. Potlatch is
> written in ActionScript 1, which is the same language as JavaScript,
> but for Flash. The latest version is ActionScript 3, which is much more
> like Java for Flash. The end user doesn't notice a difference, but the
> programming style is very different.
>
> CloudMade believes this is holding back the development of OSM: that if
> the editor were written in the latest version of the language, more
> Flash designers would come to work on it, resulting in a better editor.
> Steve cites OSM's move from pure Ruby to Ruby on Rails as an example of
> how a contemporary language encourages more people to contribute. And
> they're also worried that if I were run over by a bus then no-one would
> be able to speak ActionScript 1 and maintain Potlatch.
>
> I'm not so sure. I think people are beginning to contribute code to
> Potlatch; that as essentially JavaScript it's approachable enough; and
> that the problems of attracting developers is symptomatic of core OSM
> in general (as per http://trac.openstreetmap.org/log/sites/rails_port).
>
> I hope that Potlatch, as something maintained by an active community
> participant _for_ the community, has demonstrated a pretty rapid rate
> of improvement anyway. It's meant to be small and compact, of course,
> not a a bells-and-whistles editor like JOSM: nonetheless, in the last
> few months, for example: it's become the only editor yet to offer
> revert/history, gained very good relations support, background layers,
> flexible GPX import, etc. And there's a lot of stuff on the way, mostly
> focusing on usability - from a generic 'undo' and pop-up help panel to
> a new, super-user-friendly tagging panel with draggable POI icons and
> things like that. It's got faults, everything has, but it's come a long
> way in the last year. For what it's worth I think it's the best thing
> I've ever coded.
>
> For most purposes AS3 probably is a better language - except for the
> fairly major proviso there's no open-source player even in development.
> Indeed, if I were starting all over again I'd probably do it in AS3,
> and in a couple of years I may well migrate Potlatch to AS3 (or 4, or
> whatever) anyway. But right now it's more important to spend time
> improving usability for mappers, given that - like most people here - I
> do have a full-time job which isn't OSM (which isn't computer-related
> at all, in fact) and consequently time is not unlimited.
>
> So I really don't know what to do.
>
> Part of me thinks that the most important thing is that Potlatch is
> still available and users are offered the choice. Part of me thinks,
> well, if there's going to be a new Flash editor, there's no point in me
> doing any development on Potlatch from today forward. Part of me wants
> to say "well, screw you" and walk away. And part of me wants to take
> CloudMade up on its OSM Grants scheme (http://blog.cloudmade.com/) and
> say, ok then, I'll announce a medium-term feature freeze, take a few
> weeks' holiday, learn AS3 and recode it for a large amount of $$$. I'm
> utterly stumped and would welcome suggestions.
>
> Thanks for reading. :)
>
> cheers
> Richard
>
>
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[OSM-talk] The future of Potlatch

2008-05-01 Thread Richard Fairhurst
[warning - long ponderous e-mail follows!]

Hi all,

A fairly weighty issue concerning the future of Potlatch has arisen, 
and I'm completely baffled as to what to do - so I thought I'd "ask the 
community" for thoughts and advice.

CloudMade (Steve and Nick's VC-funded company set up to commercialise 
OSM data, www.cloudmade.com) wants to commission a new online Flash 
editor for OSM. It would, I believe, probably be written by developers 
from Stamen Design (www.stamen.com): some of you will remember that 
Stamen's Tom Carden wrote OSM's early Java editing applet, and they've 
also written a slippy map in Flash called Modest Maps.

As you can imagine, this has taken me aback a bit.

As I understand it, their main issue is a technical one. Potlatch is 
written in ActionScript 1, which is the same language as JavaScript, 
but for Flash. The latest version is ActionScript 3, which is much more 
like Java for Flash. The end user doesn't notice a difference, but the 
programming style is very different.

CloudMade believes this is holding back the development of OSM: that if 
the editor were written in the latest version of the language, more 
Flash designers would come to work on it, resulting in a better editor. 
Steve cites OSM's move from pure Ruby to Ruby on Rails as an example of 
how a contemporary language encourages more people to contribute. And 
they're also worried that if I were run over by a bus then no-one would 
be able to speak ActionScript 1 and maintain Potlatch.

I'm not so sure. I think people are beginning to contribute code to 
Potlatch; that as essentially JavaScript it's approachable enough; and 
that the problems of attracting developers is symptomatic of core OSM 
in general (as per http://trac.openstreetmap.org/log/sites/rails_port).

I hope that Potlatch, as something maintained by an active community 
participant _for_ the community, has demonstrated a pretty rapid rate 
of improvement anyway. It's meant to be small and compact, of course, 
not a a bells-and-whistles editor like JOSM: nonetheless, in the last 
few months, for example: it's become the only editor yet to offer 
revert/history, gained very good relations support, background layers, 
flexible GPX import, etc. And there's a lot of stuff on the way, mostly 
focusing on usability - from a generic 'undo' and pop-up help panel to 
a new, super-user-friendly tagging panel with draggable POI icons and 
things like that. It's got faults, everything has, but it's come a long 
way in the last year. For what it's worth I think it's the best thing 
I've ever coded.

For most purposes AS3 probably is a better language - except for the 
fairly major proviso there's no open-source player even in development. 
Indeed, if I were starting all over again I'd probably do it in AS3, 
and in a couple of years I may well migrate Potlatch to AS3 (or 4, or 
whatever) anyway. But right now it's more important to spend time 
improving usability for mappers, given that - like most people here - I 
do have a full-time job which isn't OSM (which isn't computer-related 
at all, in fact) and consequently time is not unlimited.

So I really don't know what to do.

Part of me thinks that the most important thing is that Potlatch is 
still available and users are offered the choice. Part of me thinks, 
well, if there's going to be a new Flash editor, there's no point in me 
doing any development on Potlatch from today forward. Part of me wants 
to say "well, screw you" and walk away. And part of me wants to take 
CloudMade up on its OSM Grants scheme (http://blog.cloudmade.com/) and 
say, ok then, I'll announce a medium-term feature freeze, take a few 
weeks' holiday, learn AS3 and recode it for a large amount of $$$. I'm 
utterly stumped and would welcome suggestions.

Thanks for reading. :)

cheers
Richard


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[OSM-talk] New Potlatch

2008-05-01 Thread Richard Fairhurst
0.8c is one of those "little things that mean a lot" updates:

- When you add a point into a way where it crosses another way, 
Potlatch automatically makes an intersection.
- Points and ways are now bigger at high zoom levels for those people 
without superhuman fine motor skills. (But you can turn this off using 
a new preference.)
- Double-clicking to end a line doesn't restart the line if you've 
already clicked.
- Click/drag detection is much improved.

And in some related news, the Gnash (GNU Flash Player) devs - in 
particular Sandro 'strk' Santilli - are doing really well in improving 
Gnash to work with Potlatch. strk has even become an OSM mapper which 
can't be bad. :) It's going to be interesting to see how Adobe's 
removal of licensing restrictions on SWF, just announced, benefits 
Gnash.

Will post more on Potlatch in a minute.

cheers
Richard


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Re: [OSM-talk] Searching and alt_name

2008-05-01 Thread David Earl
On 01/05/2008 13:11, Dan Karran wrote:
> On Thu, May 1, 2008 at 11:44 AM, David Earl <[EMAIL PROTECTED]> wrote:
>
>>  It's usually POIs affected, and it is usually just variations in names
>>  rather than completely different names (when you would probably want
>>  them rendered anyway). Occasionally though street names also have this
>>  problem. Consider one I came across recently: signs say "Long Horse
>>  Croft". You can imagine someone might search for "Longhorse Croft"
>>  (especially as that's how the district council list it on their refuse
>>  collection days list).
>
> What should happen in situations where different names are used in
> different contexts? I can think of at least one example on the Isle of
> Man where the B39 Corlea Road ([1], and in post office database) is
> also known as the Ronague Road [2], the Solomons Corner to Ronague
> Road [3], and on the road sign on the ground as the Road of the Grey
> Hill (or in Manx Bayr Yn Chor Lheeah).
>
> Presumably the main name is the one on the ground (despite not being
> referenced in any official documents available online), and each of
> the others should be referred to in an alt_name tag?

I'd have thought it depends what you want to appear where. If you want
it to appear in all the forms on the map, then I guess you'd put both
in the name (like I did here maybe:
http://www.openstreetmap.org/?lat=52.17627&lon=-0.03335&zoom=17&layers=B0FT
), but if you only want one of them to appear but the others to be
located by searching, you could use alt_name. "Bayr Yn Chor Lheeah"
would go under name:gv presumably.

David

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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Mike Collinson
At 01:01 PM 1/05/2008, Martin Simon wrote:
>Am Donnerstag, 1. Mai 2008 11:56:16 schrieb Andy Robinson (blackadder):
>> Perhaps this is the better way to think about it. I generally don't like
>> subjective tagging, but in this instance giving an opinion about how usable
>> a section of way is might be better. If you simplified bike types into
>> "road", "hybrid" and "mtb" then I guess you could reasonably add say
>> suitability_road / suitability_hybrid / suitability_mtb tags, or join them
>> together as bicycle_suitability=road|hybrid|mtb and leave out any of the
>> values where you consider its not suitable.
>>
>> Cheers
>>
>> Andy
>
>Hmm I think its way better to have a good description of the surface than 
>introducing vehicle-type specific usability-tags.
>
>This way the client (printing/routing-app, etc) can decide which sort of 
>surface to use.
>
>For example I have no problem using fine/medium gravel tracks with my "normal" 
>bike at all, while others on this list would tag such ways 
>as "bicycle_suitable=mtb"...
>And what about incline? is it part of the "bicycle_suitable" tag or not?
>
>I think its better to invest the time in better surface tagging than, rather 
>than subjectively tagging things that are only of use for one specific group 
>of users.

I get around subjective tagging / specific groups by doing 

description:bicycle=Ridable with a road bike but short stretches with tree roots

... looking ahead to the day when pop-ups become all the rage.

Mike



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Re: [OSM-talk] new potlatch issues

2008-05-01 Thread Mike Collinson
At 01:29 PM 1/05/2008, Richard Fairhurst wrote:
>Robin Paulson wrote:
>
>> richard, i see you've rolled out some changes as part of potlatch  
>> 0.8c, including huge thick ways...could you roll them back please?  
>> they're very obtrusive and obscure a lot of the yahoo imagery  
>> underneath.
>
>Heh, you can't please all the people all the time - the  
>easier-to-click ways/nodes were a feature request from a user too. I  
>guess it depends whether you use Yahoo or not.
>
>I've now added a preference so that you can turn them off. It's in the  
>usual place in the options dialogue (the 'tick' at the bottom).

Works great, thanks.

Mike



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[OSM-talk] clipboard on handlebars

2008-05-01 Thread Jeffrey Martin
When I got home some of my notes for my waypoints didn't
make sense. I realized I was trying to take note only every
third or forth waypoint and misremembering them.

Sometimes the simple solution is the answer. I grapped some big
clips from the office and a folder with a lever action clip.
I bent back the cover, trimmed it down to a triangle shape,
cut a notch for the speedometer cable etc.

My data is much better.
-- 
http://bowlad.com
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[OSM-talk] [CARTO-SoC] BCS AWARDS deadline 30 May 2008 (fwd)

2008-05-01 Thread martin dodge

I think we should nominate OSM for the 'Ordnance Survey MasterMap Award
for Better Mapping' .

cheers
martin

-- Forwarded message --
Date: Thu,  1 May 2008 15:09:30 BST
From: C Neal <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
To: Multiple recipients of list CARTO-SOC <[EMAIL PROTECTED]>
Subject: [CARTO-SoC] BCS AWARDS deadline 30 May 2008


BCS Awards deadline
The BCS Awards will close to entries on May 30th 2008.

The British Cartographic Society (BCS) recently revamped the Awards
scheme to encourage entrants from all disciplines in cartography, and
to showcase products created through traditional or new, even
experimental, techniques. The BCS aims to help promote the best of
cartographic products and highlight good cartographic design in the UK
and abroad.

As part of the changes, two awards were added to the programme to
assist in covering all disciplines. Firstly, The Stanfords Award for
printed mapping is designed to encourage any printed products to
enter, from coffee table atlases to wallpaper or maps featured in
leaflets and topical articles.

The Avenza Award for electronic mapping was also added to allow
digital products such as interactive and web maps to also compete.
Entries can include power-point presentations, interactive CD-ROMS, or
websites.

These two awards join the established John C Bartholomew Award for
Small Scale Mapping and the Ordnance Survey MasterMap Award for Better
Mapping.

Not only will the winners of these awards receive a crystal trophy and
certificate, but they also go head-to-head with each other to receive
the prestigious honour of being crowned the Best Mapping entry and
presented with The BCS Award. (Closing date for all the above entries
is 30th May 2008)

We are delighted to announce the introduction of a new award for UK
children, to run in alternate years to the ICA Barbara Petchenik
Children's Map Competition. The UKHO Junior Mapmaker Award is designed
to encourage map making in children aged 7 - 16. (Closing date is
Saturday 19th July 2008)

We also continue to support the NGS New Mapmaker Award in conjunction
with The National Geographic Society (same closing date), and The
Henry Johns Award for the best Cartographic Journal article sponsored
by Lovell Johns.

If you would like to enter any of these awards, entry forms are
available on the BCS website. See the Awards section on
http://www.cartography.org.uk
Information about the winners from 2007 is also available on the website


-- 
Clare Neal
BCS Webmaster

http://www.cartography.org.uk



--

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Re: [OSM-talk] Bulk Data Import how-to and tips

2008-05-01 Thread Iván Sánchez Ortega
El Jueves, 1 de Mayo de 2008, Patrick Weber escribió:
> Also, whats the best procedure for the conversion. I suspect we will get
> the data as shapefiles. Can JOSM read shapefiles?

I usually use GDAL to convert the shapefile into GML, then fine-tune the 
gml2osm script by hand and run it.

-- 
--
Iván Sánchez Ortega <[EMAIL PROTECTED]>

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5.2.5-3 generating this signature.
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Re: [OSM-talk] Bulk Data Import how-to and tips

2008-05-01 Thread Juan Lucas Dominguez Rubio
Hi, Patrick
 
Maybe there is a better way, but this is what I would do:
 
- get a shapefile of Luxembourg (or a simple polygon shapefile that contains 
all of Luxembourg). Let's call it lux.shp.
- download the roads for Luxembourg currently in OSM from 
http://download.geofabrik.de/osm/europe/
 
Now you will need a GIS application:
 
- select the roads tagged as motorway, motorway_link, trunk, trunk_link, 
primary or primary_link from that shapefile and export them to another 
shapefile.
- perform a buffer of that shapefile (for example, use 100 meters for the 
radius)
- perform a difference operation: lux.shp minus the buffer you have just created
- finally, clip the official shapefile of the Luxembourg roads with the result 
of that substraction and export the resulting shapefile to the OSM format with 
that python script.
 
And then, you will have to carefully connect those ways with the current ways 
in OSM, and revise the tags, of course.
 
Lucas

 


De: [EMAIL PROTECTED] en nombre de Skywave
Enviado el: jue 01/05/2008 14:47
Para: talk@openstreetmap.org
Asunto: [OSM-talk] Bulk Data Import how-to and tips


JOSM can't read shape files, you will have to adapt this script  
http://boston.freemap.in/osm/files/mgis_to_osm.py to convert shapefiles to osm.

On Thu, May 1, 2008 at 12:59 PM, Patrick Weber <[EMAIL PROTECTED]> wrote:


Hi list

I have been mapping my home country Luxembourg for the past 6 months. I 
recently have been offered by another OSM user who works at the national road 
works agency (not shure about the translation but anyway), to get the national 
road network (all primary highways, trunk and motorways) imported into OSM. 
Apparently they are okay with it. Great News!

Now I am trying to figure out how this will work in practice, as we are 
not importing into a blank canvas, but a sizable bit of the road network has 
been done already. How can we merge the two datasets, and keep the best bits of 
both?

Also, whats the best procedure for the conversion. I suspect we will 
get the data as shapefiles. Can JOSM read shapefiles?

Thanks for helping us.

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[OSM-talk] Bulk Data Import how-to and tips

2008-05-01 Thread Skywave
JOSM can't read shape files, you will have to adapt this script
http://boston.freemap.in/osm/files/mgis_to_osm.py to convert shapefiles to
osm.
On Thu, May 1, 2008 at 12:59 PM, Patrick Weber <[EMAIL PROTECTED]> wrote:

> Hi list
>
> I have been mapping my home country Luxembourg for the past 6 months. I
> recently have been offered by another OSM user who works at the national
> road works agency (not shure about the translation but anyway), to get the
> national road network (all primary highways, trunk and motorways) imported
> into OSM. Apparently they are okay with it. Great News!
>
> Now I am trying to figure out how this will work in practice, as we are
> not importing into a blank canvas, but a sizable bit of the road network has
> been done already. How can we merge the two datasets, and keep the best bits
> of both?
>
> Also, whats the best procedure for the conversion. I suspect we will get
> the data as shapefiles. Can JOSM read shapefiles?
>
> Thanks for helping us.
>
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>
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Re: [OSM-talk] GIS in the public sector

2008-05-01 Thread OJ W
do they mention prices for the nonprofit sector?


On Wed, Apr 30, 2008 at 4:04 PM, graham <[EMAIL PROTECTED]> wrote:
> Anyone with some money to burn going to this? I imagine just walking
> around with an osm t-shirt would probably generate quite a bit of
> interest...
>
> Graham
>
>
> +++GIS in the Public Sector: 14 May 2008, Central London
> - Two Weeks To Go
> - Countdown To EU's INSPIRE Directive
> - Speakers from LGA, IDeA, Defra
> http://www.headstar-events.com/gis08/ .
>
> The European Union's INSPIRE  Directive, which paves the way for
> all geospatial data to be shared by public bodies across the EU, is set
> to come into full force in the UK in May 2009, but the countdown
> begins now. The directive is the focus for Headstar's fourth annual
> conference and exhibition on Geographical  Information Systems (GIS)
> in the Public Sector, supported by the Association for Geographical
> Information (AGI), on 14 May 2008 in central London.
>
> Plenary speakers will include representatives from the Local Government
> Association; the Improvement and Development Agency (IDeA); and
> the Department for the Environment, Food and Rural Affairs (Defra).
>
> Our event promises to be essential day for anyone involved in the
> collection, management or use of geospatial data, from policymakers
> looking at statistics across a region to those charged with putting
> user-friendly map content onto a website. Places cost 295 Pounds plus
> VAT for public sector and 395 plus VAT for private sector.
> Register today at:
> http://www.headstar-events.com/gis08/
>
>
> --
> Sponsor me from London to Brighton on http://www.justgiving.com/grahamseaman
>
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Re: [OSM-talk] Searching and alt_name

2008-05-01 Thread Dan Karran
On Thu, May 1, 2008 at 11:44 AM, David Earl <[EMAIL PROTECTED]> wrote:

>  It's usually POIs affected, and it is usually just variations in names
>  rather than completely different names (when you would probably want
>  them rendered anyway). Occasionally though street names also have this
>  problem. Consider one I came across recently: signs say "Long Horse
>  Croft". You can imagine someone might search for "Longhorse Croft"
>  (especially as that's how the district council list it on their refuse
>  collection days list).

What should happen in situations where different names are used in
different contexts? I can think of at least one example on the Isle of
Man where the B39 Corlea Road ([1], and in post office database) is
also known as the Ronague Road [2], the Solomons Corner to Ronague
Road [3], and on the road sign on the ground as the Road of the Grey
Hill (or in Manx Bayr Yn Chor Lheeah).

Presumably the main name is the one on the ground (despite not being
referenced in any official documents available online), and each of
the others should be referred to in an alt_name tag?

[1] http://www.gov.im/lib/news/transport/transportpublicn230.xml
[2] http://www.gov.im/lib/news/transport/transportpublicn153.xml
[3] http://www.gov.im/lib/news/transport/transportpublicn50.xml


Cheers,
Dan

-- 
Dan Karran
[EMAIL PROTECTED]
www.dankarran.com

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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Andy Robinson (blackadder)
Martin Simon wrote:
>Sent: 01 May 2008 12:02 PM
>To: talk@openstreetmap.org
>Subject: Re: [OSM-talk] Wide tracks with cycle access
>
>Am Donnerstag, 1. Mai 2008 11:56:16 schrieb Andy Robinson (blackadder):
>> Perhaps this is the better way to think about it. I generally don't like
>> subjective tagging, but in this instance giving an opinion about how
>usable
>> a section of way is might be better. If you simplified bike types into
>> "road", "hybrid" and "mtb" then I guess you could reasonably add say
>> suitability_road / suitability_hybrid / suitability_mtb tags, or join
>them
>> together as bicycle_suitability=road|hybrid|mtb and leave out any of the
>> values where you consider its not suitable.
>>
>> Cheers
>>
>> Andy
>
>Hmm I think its way better to have a good description of the surface than
>introducing vehicle-type specific usability-tags.
>
>This way the client (printing/routing-app, etc) can decide which sort of
>surface to use.
>
>For example I have no problem using fine/medium gravel tracks with my
>"normal"
>bike at all, while others on this list would tag such ways
>as "bicycle_suitable=mtb"...
>And what about incline? is it part of the "bicycle_suitable" tag or not?
>
>I think its better to invest the time in better surface tagging than,
>rather
>than subjectively tagging things that are only of use for one specific
>group
>of users.

It was because of the difficulty of defining unpaved surfaces that this
thread branched off. If you can come up with a method for tagging the
make-up of natural surfaces then great, but its not easy in my view or I'd
be using them already.

Cheers

Andy

>
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Re: [OSM-talk] new potlatch issues

2008-05-01 Thread Richard Fairhurst
Robin Paulson wrote:

> richard, i see you've rolled out some changes as part of potlatch  
> 0.8c, including huge thick ways...could you roll them back please?  
> they're very obtrusive and obscure a lot of the yahoo imagery  
> underneath.

Heh, you can't please all the people all the time - the  
easier-to-click ways/nodes were a feature request from a user too. I  
guess it depends whether you use Yahoo or not.

I've now added a preference so that you can turn them off. It's in the  
usual place in the options dialogue (the 'tick' at the bottom).

Will post more on the new Potlatch later.

cheers
Richard


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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Martin Simon
Am Donnerstag, 1. Mai 2008 11:56:16 schrieb Andy Robinson (blackadder):
> Perhaps this is the better way to think about it. I generally don't like
> subjective tagging, but in this instance giving an opinion about how usable
> a section of way is might be better. If you simplified bike types into
> "road", "hybrid" and "mtb" then I guess you could reasonably add say
> suitability_road / suitability_hybrid / suitability_mtb tags, or join them
> together as bicycle_suitability=road|hybrid|mtb and leave out any of the
> values where you consider its not suitable.
>
> Cheers
>
> Andy

Hmm I think its way better to have a good description of the surface than 
introducing vehicle-type specific usability-tags.

This way the client (printing/routing-app, etc) can decide which sort of 
surface to use.

For example I have no problem using fine/medium gravel tracks with my "normal" 
bike at all, while others on this list would tag such ways 
as "bicycle_suitable=mtb"...
And what about incline? is it part of the "bicycle_suitable" tag or not?

I think its better to invest the time in better surface tagging than, rather 
than subjectively tagging things that are only of use for one specific group 
of users.

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[OSM-talk] Bulk Data Import how-to and tips

2008-05-01 Thread Patrick Weber

Hi list

I have been mapping my home country Luxembourg for the past 6 months. I 
recently have been offered by another OSM user who works at the national 
road works agency (not shure about the translation but anyway), to get 
the national road network (all primary highways, trunk and motorways) 
imported into OSM. Apparently they are okay with it. Great News!


Now I am trying to figure out how this will work in practice, as we are 
not importing into a blank canvas, but a sizable bit of the road network 
has been done already. How can we merge the two datasets, and keep the 
best bits of both?


Also, whats the best procedure for the conversion. I suspect we will get 
the data as shapefiles. Can JOSM read shapefiles?


Thanks for helping us.
begin:vcard
fn:Patrick Weber
n:Weber;Patrick
org:University College London
adr:;;Gower Street;London;;WC1E 6BT;United Kingdom
email;internet:[EMAIL PROTECTED]
title:Engineering Doctorate Student
tel;work:02077185430
tel;cell:07854840450
url:http://www.ucl.ac.uk/cemi
version:2.1
end:vcard

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[OSM-talk] Searching and alt_name

2008-05-01 Thread David Earl
I'd like to encourage you, when editing the map, to think about how
people might search for the features you are adding to the map and try
to accommodate them, to try to be helpful to future consumers of the
map data. Using alt_name is one way to do this.

The namefinder already deals automatically with some mechanical
variations(*). But there's often variations in what something is known
as which can't (easily) be accommodated automatically. For example, I
was reading Richard's blog from a few weeks ago about Heathrow
Terminal 5, where he says that we correctly yield the result in a
search. Yes we do, but what if someone had asked for "Heathrow Airport
Terminal 5". Yesterday, that wouldn't have got a hit; today it does
because I added an alt_name tag to it to accommodate this variation.
Namefinder recognises alt_name.

Of course you could put variations in the name tag (maybe separated by
semicolons, or in square brackets, or some such), but then it will all
render, possibly rather verbosely. You might want just "Terminal 5" to
show up on the map rendering, given that "Heathrow Airport" would be
rendered separately in the middle of the ring of terminals and so be
obvious, but searches for "Heathrow Terminal 5" still be successful.

Another example: the search test for tourist attractions has "British
Airways London Eye" and "V&A" as test searches. There's arguably no
need for the rendering to say other than "London Eye" (or "The London
Eye"?) but a search would ideally respond to its full title.
Similarly, the map is rightly labelled "Victoria and Albert Museum",
but searches should respond to V&A. Incidentally, variations aren't
needed for just for the presence or absence of the word "the" (or le,
la, el, il, die, das, der), which is automatically dealt with.

Another example might be function vs name. The name of an office block
in Cambridge is "Eastbrook", but if someone searches for "Inland
Revenue, Cambridge" it might be nice to be able to offer "Eastbrook"
as the answer. (That works, but "HMRC, Cambridge" or "Tax office,
Cambridge" don't and arguably should. Conversely "Chailey House,
Bedford" doesn't work - today - but "Inland Revenue, Bedford" does).

It's usually POIs affected, and it is usually just variations in names
rather than completely different names (when you would probably want
them rendered anyway). Occasionally though street names also have this
problem. Consider one I came across recently: signs say "Long Horse
Croft". You can imagine someone might search for "Longhorse Croft"
(especially as that's how the district council list it on their refuse
collection days list).

I guess in principle, I could automate this at some point, but it is
hard, especially the other way round (signs say "Longhorse Croft",
searcher asks for "Long Horse Croft"), so a variation would be helpful
here, though purists will say "don't code for the inadequacies of the
tools".

David

(*) in things like case, abbreviations (Rd vs Road), accented
characters and diacriticals (München vs Munchen or Muenchen),
ligatures, possessives (St John's vs St John or St Johns) and some
Germanic concatentations (Potsdammerplatz vs Potsdammer Platz). We are
also used to dealing with alternative languages with the name:
tags, so 'Londres' will find 'London'. Also, the item description is
included, so you don't necessarily need to say "school" in the name -
"King Edward School" will match name=King Edward, amenity=school
(though not at present Konig Albert Schule" unless schule is recorded
as part of the name).

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Re: [OSM-talk] OSM in Europe Statistics

2008-05-01 Thread Frederik Ramm
Hi,

> Could you do a stats on Denmark as well, since we still are considered  
> part of Scandinavia ;)

5.5M inhabitants, 5.3M bytes - roughly 1.0.

Bye
Frederik

-- 
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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Andy Robinson (blackadder)
Richard Fairhurst wrote:
>Sent: 01 May 2008 11:13 AM
>To: talk@openstreetmap.org
>Subject: Re: [OSM-talk] Wide tracks with cycle access
>
>Andy Robinson \(blackadder\) wrote:
>
>> Perhaps this is the better way to think about it. I generally don't like
>> subjective tagging, but in this instance giving an opinion about how
>usable
>> a section of way is might be better. If you simplified bike types into
>> "road", "hybrid" and "mtb" then I guess you could reasonably add say
>> suitability_road / suitability_hybrid / suitability_mtb tags, or join
>them
>> together as bicycle_suitability=road|hybrid|mtb and leave out any of the
>> values where you consider its not suitable.
>
>Indeed - and you probably just need one value, given that an MTB can
>use anything a hybrid can, and a hybrid can use anything a road bike
>can. bicycle_minimum maybe.

even better. +1 to that.

Cheers

Andy

>
>cheers
>Richard
>
>
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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Richard Fairhurst
Andy Robinson \(blackadder\) wrote:

> Perhaps this is the better way to think about it. I generally don't like
> subjective tagging, but in this instance giving an opinion about how usable
> a section of way is might be better. If you simplified bike types into
> "road", "hybrid" and "mtb" then I guess you could reasonably add say
> suitability_road / suitability_hybrid / suitability_mtb tags, or join them
> together as bicycle_suitability=road|hybrid|mtb and leave out any of the
> values where you consider its not suitable.

Indeed - and you probably just need one value, given that an MTB can  
use anything a hybrid can, and a hybrid can use anything a road bike  
can. bicycle_minimum maybe.

cheers
Richard


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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Andy Robinson (blackadder)
Stephen Gower wrote:
>Sent: 01 May 2008 10:39 AM
>To: talk@openstreetmap.org
>Subject: Re: [OSM-talk] Wide tracks with cycle access
>
>On Wed, Apr 30, 2008 at 08:39:15PM +0100, 80n wrote:
>>
>> bicycle=yes and surface=gravel are an incompatible combination in my book
>;)
>
>  There's gravel and there's gravel though - pea gravel like my
>  grandfather had on his drive (in the New Forest!) and had to rake
>  after cars had been over it is absolutely no good for cycling,
>  while a self-binding gravel such as seen on
>  http://www.pavingexpert.com/gravel05.htm is perfectly fine.  I
>  cycle a section of the Thames Path on my daily commute that comes
>  into the latter category, and apart from the puddles tending to get
>  larger each time it rains, it's just as good as the asphalt
>  sections.
>
>  The cycle paths in the New Forest are somewhere in between these
>  two categories - while the Thames Path one could reasonably be
>  labeled surface=dirt, the New Forest ones are definitely gravel,
>  but it's well compacted and many of them will be cycled on by
>  hundreds of people a week during the summer.
>
>  http://www.geograph.org.uk/photo/35904
>  http://www.geograph.org.uk/photo/388784
>  http://www.geograph.org.uk/photo/35915
>  http://www.geograph.org.uk/photo/87018
>  http://www.geograph.org.uk/photo/381057
>  http://en.wikipedia.org/wiki/Image:New_Forest_Cycle_path.jpg
>
>  From these photos it can be seen that there's quite a variety even
>  within the National Park and depending on your style of bike you
>  might want to avoid some or all of them.

Perhaps this is the better way to think about it. I generally don't like
subjective tagging, but in this instance giving an opinion about how usable
a section of way is might be better. If you simplified bike types into
"road", "hybrid" and "mtb" then I guess you could reasonably add say
suitability_road / suitability_hybrid / suitability_mtb tags, or join them
together as bicycle_suitability=road|hybrid|mtb and leave out any of the
values where you consider its not suitable.

Cheers

Andy

>
>  s
>
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Re: [OSM-talk] OSM in Europe Statistics

2008-05-01 Thread Andy Robinson (blackadder)
Frederik Ramm [mailto:[EMAIL PROTECTED] wrote:
>Sent: 30 April 2008 8:56 PM
>To: Andy Robinson (blackadder)
>Cc: 'Frederik Ramm'; talk@openstreetmap.org
>Subject: Re: [OSM-talk] OSM in Europe Statistics
>
>Hi,
>
>> Can someone point me to some simple code/ideas on how to turn the xml osm
>> data into way length? I'll then be able to report some findings. I'll
>also
>> write up how I gathered the information needed so that other areas can be
>> compared.
>
>There's a script in SVN:
>
>/applications/utils/filter/osm-length/osm-length-2.pl
>
>You'd have to call this like so:
>
>perl osm-length-2.pl < myfile.osm > foo.osm 2> result
>
>and then you'll have in "result" a text file that gives road lengths
>for every type of highway contained in the input file (other data is
>disregarded). (foo.osm has a copy of myfile.osm with way lengths
>added.)
>
>Unfortunately this will also count ways that have an "action=delete"
>tag because you deleted them in JOSM. You can work around this by
>either making sure that the deleted objects are actually removed from
>the file (#12 in JOSM/Advanced_Tricks in the wiki) or, instead of
>removing the bits you don't want, just tag them "highway=deleted" and
>they'll count towards the extra category "deleted" which you can then
>ignore.

Thanks for this, very helpful alternative to the rough and ready way I have
achieved the same thing using the measurement plugin in JOSM. Your method
however is able to refine the statistics considerably if that is needed.

Cheers

Andy

>
>Bye
>Frederik
>
>--
>Frederik Ramm  ##  eMail [EMAIL PROTECTED]  ##  N49°00'09" E008°23'33"



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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Stephen Gower
On Wed, Apr 30, 2008 at 08:39:15PM +0100, 80n wrote:
> 
> bicycle=yes and surface=gravel are an incompatible combination in my book ;)

  There's gravel and there's gravel though - pea gravel like my
  grandfather had on his drive (in the New Forest!) and had to rake
  after cars had been over it is absolutely no good for cycling,
  while a self-binding gravel such as seen on
  http://www.pavingexpert.com/gravel05.htm is perfectly fine.  I
  cycle a section of the Thames Path on my daily commute that comes
  into the latter category, and apart from the puddles tending to get
  larger each time it rains, it's just as good as the asphalt
  sections.

  The cycle paths in the New Forest are somewhere in between these
  two categories - while the Thames Path one could reasonably be
  labeled surface=dirt, the New Forest ones are definitely gravel,
  but it's well compacted and many of them will be cycled on by
  hundreds of people a week during the summer.

  http://www.geograph.org.uk/photo/35904  
  http://www.geograph.org.uk/photo/388784 
  http://www.geograph.org.uk/photo/35915
  http://www.geograph.org.uk/photo/87018
  http://www.geograph.org.uk/photo/381057
  http://en.wikipedia.org/wiki/Image:New_Forest_Cycle_path.jpg  
  
  From these photos it can be seen that there's quite a variety even
  within the National Park and depending on your style of bike you
  might want to avoid some or all of them.
  
  s

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Re: [OSM-talk] OSM in Europe Statistics

2008-05-01 Thread J.D. Schmidt
Frederik Ramm skrev:
> Hi,
> 
>a very crude statistic:
> 
> Country   osm.bz2 sizepopulationratio (bytes per capita)
> 
> UK73M60M1.2
> Germany  110M82M1.3
> Netherlands   51M16M3.2
> France29M60M0.5
> Finland   20M 5M4.0
> Italy 14M58M0.2
> Norway21M 5M4.2
> Sweden24M 9M2.6
> Spain 17M40M0.4
> 

Could you do a stats on Denmark as well, since we still are considered 
part of Scandinavia ;)

Dutch

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Re: [OSM-talk] Selecting nodes on a way

2008-05-01 Thread Andy Robinson (blackadder)
Dirk-Lüder Kreie <[EMAIL PROTECTED]> wrote:
>Sent: 01 May 2008 10:11 AM
>To: OJ W
>Cc: OSM Talk
>Subject: Re: [OSM-talk] Selecting nodes on a way
>
>-BEGIN PGP SIGNED MESSAGE-
>Hash: SHA1
>
>OJ W schrieb:
>| Is it possible in JOSM to select all the nodes on a way?  e.g. if you
>| have a long power line and you want to tag all the nodes as towers.
>|
>
>I had a similar problem and used the up-to-dateness from OSMXAPI as a
>workaround for that... (checked timestamp inside the xml file of course)
>

crafty ;-)

>
>- --
>
>Dirk-Lüder "Deelkar" Kreie
>Bremen - 53.0952°N 8.8652°E


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Re: [OSM-talk] Wide tracks with cycle access

2008-05-01 Thread Andy Robinson (blackadder)
Karl Eichwalder wrote:
>Sent: 01 May 2008 7:36 AM
>To: 80n
>Cc: talk@openstreetmap.org
>Subject: Re: [OSM-talk] Wide tracks with cycle access
>
snip
>
>Wondering whether using surface=gravel is already understood by the
>renderers?  Thus far, I was using "unpaved" exclusively.

I too have been using "unpaved" to date and will continue to do so, however
I accept that in some instances I also want to state what the surface is
made up of and haven't really got to grips with that for unpaved surfaces.
Paved surfaces are easy enough (including those covered with chippings).

These type of scenarios crop up:

Farm tracks in Norfolk where dry sand fills the ruts making cycling near on
impossible.
Farm tracks in Cumbria where natural boulders and cobbles protrude regularly
through the surface.
Tracks that have had potholes filled in with railway ballast.

These are just a few scenarios, none of which I find an easy way to tag,
thus to date I have ignored doing so.

Cheers

Andy

>
>--
>Karl Eichwalder
>
>
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Re: [OSM-talk] Selecting nodes on a way

2008-05-01 Thread Dirk-Lüder Kreie
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1

OJ W schrieb:
| Is it possible in JOSM to select all the nodes on a way?  e.g. if you
| have a long power line and you want to tag all the nodes as towers.
|

I had a similar problem and used the up-to-dateness from OSMXAPI as a
workaround for that... (checked timestamp inside the xml file of course)


- --

Dirk-Lüder "Deelkar" Kreie
Bremen - 53.0952°N 8.8652°E

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Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

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=37B4
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Re: [OSM-talk] Mapnik viewer for OSM data - UI suggestions?

2008-05-01 Thread Nick Whitelegg
>> One of the OSM projects I'm hoping to work on is a Mapnik GUI renderer 
for 
>> ..osm files (and live API data, cached locally, and PostGIS databases), 

>> based on the Mapnik viewer. However what would be good is to get some 
user 
>> interface suggestions from people. The aim is to try and make it as 
easy 
>> as possible for people to render, and print, custom Mapnik maps.

>Are you asking people which of Mapnik's many knobs you think need 
>exposing in your UI? Or have you chosen a set of knobs but want to know 
>how best to present those capabilities in a usable way?

>If the former, where can we find a list of knobs to choose from? If the 
>latter, which knobs have you chosen?

My idea is to try and shield the user from the XML file altogether. Rather 
than get a user to open an XML file, I'd like users to be able to simply 
open an OSM file, download data from the API, or retrieve data from a 
PostGIS database, and then use the UI to define styles for OSM key/value 
combinations. Ideally also I'd like users to be able to select high level 
types (which map to certain key/value combinations) as Potlatch already 
does.

I'd also like an "OSM browser" mode, where a user can pan the map and new 
data gets downloaded from the API, and then cached locally.

I'd also like the users to be able to define, and order, layers for their 
map.

Nick

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Re: [OSM-talk] railways/roads/canals/rivers/etc. inside buildings

2008-05-01 Thread Andy Robinson (blackadder)
Robin Paulson wrote:
>Sent: 30 April 2008 10:27 PM
>To: talk@openstreetmap.org
>Subject: [OSM-talk] railways/roads/canals/rivers/etc. inside buildings
>
>a situation has come up, where i've been mapping some railway lines
>that go through a maintenance shed. the problem is, the railway is
>drawn on top of the shed, rather than shown dotted too imply it's
>underneath/inside. is there a tag i could use, to show that it's
>inside? something like the tunnel tag

If you want it dashed I think the only option is to set the section as if
it's in a tunnel (effectively it is). Alternatively you can hide the section
completely by rendering the shed over the top of the railway by appropriate
use of the layer tag. they are the only options I know of right now and cant
really think of a good alternative anyway.

Cheers

Andy



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>http://openstreetmap.org/?lat=-36.88633&lon=174.76474&zoom=15&layers=B0FT
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[OSM-talk] Selecting nodes on a way

2008-05-01 Thread OJ W
Is it possible in JOSM to select all the nodes on a way?  e.g. if you
have a long power line and you want to tag all the nodes as towers.

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