Re: [Talk-GB] OSM Analysis and ITO Map

2011-04-09 Thread Peter Miller
On 8 April 2011 18:49, Steve Doerr doerr.step...@gmail.com wrote:

  On 08/04/2011 17:27, David Fitzhugh wrote:

  I am seeking some clarification about the figures presented in the table.
 Where a road,street,highway, lane etc is deemed to be missing, is it missing
 altogether or plotted but just not named. It would help to know what is
 being measured. I live in North Norfolk which seems to have a tremendous
 amount of catching up to do.


Nice to have you on board!

If you work on North Norfolk systematically you will find that it won't take
that long and even if you only do one part of it then that would be great.
Personally I start the the places nearest where I live and clear all the big
boxes (relating to long roads) in the area the first day. On the next
session I work on the small errors boxes the following day and then do a
mopping up exercise of the ones I missed and added my own errors on the
final day. I also tend to do the rural areas first and then 'creap up on the
big town'. I am working on Colchester at present and am ready to do the town
itself now. I do about 100 streets in a session.

You may alternatively choose to go slower and add more data richness to the
area from Bing and OS Streetview and not even attempt to clear a whole
district. One can added lots of paths, zebra crossings, landuse etc from
Bing which is really useful.

If I find conficts between OS Locator and OSM with different names for the
same road (which is less of a problem where these is less mapping already
done) I use a variety of methods to decide if there is an clear winner.
Firstly I type the street into google search (not google maps) and normally
house searches results will come up with a favourite and that is the one I
go with. It might also come up with an address for a  business on the street
etc. If it isn't clear from that then I leave it for a local person to sort
out later. I might in that case add a 'fixme=name needs to be checked, OS
Locator says 'fdsffds' ' or something.

Regards,


Peter


 Can be either. Can also be named, but with a different name.

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Re: [Talk-GB] OSM Analysis and ITO Map now updating daily. New stats for OSM Analysis. New overlay maps for ITO Map

2011-04-09 Thread Peter Miller
On 8 April 2011 23:31, Dave F. dave...@madasafish.com wrote:

 On 08/04/2011 17:25, Ed Avis wrote:

 I've documented it in
 http://wiki.openstreetmap.org/wiki/OSM_and_OSL_differences_analysis


 Ta

 Could you give em an example please?


Yes, if was simply that it should have been highway=no rather than
highway=not. Confusing the have no, not and none but no is probably the more
appropriate value. I didn't spot the error and had flagged it for attention
on Monday.

I see that Oxford is now at 100% which is great.

Also, I did some cleanup work on the wiki page yesterday adding a bit more
clarity to the techniques. I will do some more work on it if I feel
inspired. We should probably add some screen grabs of the thematic map to
the wiki from time to time so we can see the progress over time.


Regards,


Peter



 Cheers
 Dave F.


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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Peter Miller
On 6 April 2011 16:53, Ed Loach e...@loach.me.uk wrote:

 Richard wrote:

  I'd put the number for cars (ie 70mph for a dual carriageway), and
  the source if it's not the number that's on the sign.

 This is similar to what I've done. For areas where a national speed
 limit applies I have used
maxspeed= (maximum speed for cars, which is the maximum
 maximum I believe, if you see what I mean)
 I was also tagging
maxspeed:type=national
 or
maxspeed:type=national_dual_carriageway
 (no others apply locally). I added these mainly for my use in case
 the government ever change the maximum speed for cars on such roads,
 as has been rumoured on occasion in the press, so that I can use
 XAPI or JOSM or similar to update the maxspeed values more easily).


We seem to be nudging towards something close to a conclusion.

Can I suggest that the following two methods are valid, however the second
one should be considered to be 'better' and where it is used then it should
be retained to avoid edit warring.

I have worked a bit on the 'type' tagging to allow it to include the county
which might be GB or UK depending on how Northern Ireland interprets the
rules - is it always the same as the rest of the UK?

On reflection the convention used elsewhere to put the IT:urban or whatever
into the source:maxspeed tag seems to be misunderstanding the purpose of
source tag which should be for such explanations as 'survey' or 'TfL open
speed data' or whatever. Notice that I am have used 'GB:urban' for the 30mph
no sign situation to match up better with 'IT:urban' etc.

Method 1
maxspeed=national
source:maxspeed=survey

Method 2
maxspeed=60 mph
maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)
source:maxspeed=survey

If we can agree on the above I will add it to the relevant wiki pages.



Regards,


Peter




 Then chriscf splattered a load of source:maxspeed tags across the
 roads, so I added those too to other national speed limit ways I
 tagged (to save him doing it) - after reading the wiki it seems to
 be a fairly well used tag in some other countries, though chriscf
 made up the UK values he used; I suggested he add them to the wiki
 but apparently past experiences means he doesn't want to touch the
 wiki until there's a *major* shift in mindset there. Again he
 distinguishes between single carriageway and dual carriageway with
 the values he chose.

 Ed


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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Peter Miller
On 9 April 2011 08:15, Peter Miller peter.mil...@itoworld.com wrote:



 On 6 April 2011 16:53, Ed Loach e...@loach.me.uk wrote:

 Richard wrote:

  I'd put the number for cars (ie 70mph for a dual carriageway), and
  the source if it's not the number that's on the sign.

 This is similar to what I've done. For areas where a national speed
 limit applies I have used
maxspeed= (maximum speed for cars, which is the maximum
 maximum I believe, if you see what I mean)
 I was also tagging
maxspeed:type=national
 or
maxspeed:type=national_dual_carriageway
 (no others apply locally). I added these mainly for my use in case
 the government ever change the maximum speed for cars on such roads,
 as has been rumoured on occasion in the press, so that I can use
 XAPI or JOSM or similar to update the maxspeed values more easily).


 We seem to be nudging towards something close to a conclusion.

 Can I suggest that the following two methods are valid, however the second
 one should be considered to be 'better' and where it is used then it should
 be retained to avoid edit warring.

 I have worked a bit on the 'type' tagging to allow it to include the county
 which might be GB or UK depending on how Northern Ireland interprets the
 rules - is it always the same as the rest of the UK?

 On reflection the convention used elsewhere to put the IT:urban or whatever
 into the source:maxspeed tag seems to be misunderstanding the purpose of
 source tag which should be for such explanations as 'survey' or 'TfL open
 speed data' or whatever. Notice that I am have used 'GB:urban' for the 30mph
 no sign situation to match up better with 'IT:urban' etc.


I have added some more examples for each method for clarity


 Method 1
 maxspeed=national
 source:maxspeed=survey


maxspeed=xx mph
source:maxspeed=survey



 Method 2
 maxspeed=60 mph
 maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)
 source:maxspeed=survey


maxspeed=70 mph
maxspeed:type=GB:motorway
source:maxspeed=survey

maxspeed=60 mph
maxspeed:type=GB:rural
source:maxspeed=survey

maxspeed=60 mph
maxspeed:type=numeric sign
source:maxspeed=survey

maxspeed=30 mph
maxspeed:type=GB:urban
source:maxspeed=survey

maxspeed=30 mph
maxspeed:type=numeric sign
source:maxspeed=survey




 If we can agree on the above I will add it to the relevant wiki pages.



 Regards,


 Peter




 Then chriscf splattered a load of source:maxspeed tags across the
 roads, so I added those too to other national speed limit ways I
 tagged (to save him doing it) - after reading the wiki it seems to
 be a fairly well used tag in some other countries, though chriscf
 made up the UK values he used; I suggested he add them to the wiki
 but apparently past experiences means he doesn't want to touch the
 wiki until there's a *major* shift in mindset there. Again he
 distinguishes between single carriageway and dual carriageway with
 the values he chose.

 Ed


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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Steve Doerr

On 09/04/2011 08:15, Peter Miller wrote:


maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)


I don't like the urban/rural dichotomy for the UK as it doesn't 
correspond to anything in the legislation here - unless you believe that 
street-lighting is a specifically urban phenomenon.


In UK law, the implicit 30 mph speed limit is associated with a 
'restricted road', which is any road having 'a system of street lighting 
furnished by means of lamps placed not more than 200 yards apart' 
(except, presumably, one where an explicit speedlimit or the 'national' 
speed limit applies). So maybe GB:restricted_road would be better?


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Re: [Talk-GB] OSM Analysis and ITO Map now updating daily. New stats for OSM Analysis. New overlay maps for ITO Map

2011-04-09 Thread Ed Avis
Here are some examples of not:name and highway=no:

http://oscompare.raggedred.net/?zoom=14lat=51.54846lon=-0.21501layers=B0TF

From the comparison report you can see only two errors remaining.  That is
because the others have been checked, and where OS was wrong a not:name has been
tagged.

If you download the map for that area you'll see some ways tagged with
highway=no. This is where I visited and found there was no road there any more.
The highway=no way is just a placeholder to mark the not:name tag for the check.

-- 
Ed Avis e...@waniasset.com


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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Peter Miller
On 9 April 2011 08:49, Steve Doerr doerr.step...@gmail.com wrote:

  On 09/04/2011 08:15, Peter Miller wrote:

 maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)


 I don't like the urban/rural dichotomy for the UK as it doesn't correspond
 to anything in the legislation here - unless you believe that
 street-lighting is a specifically urban phenomenon.

 In UK law, the implicit 30 mph speed limit is associated with a 'restricted
 road', which is any road having 'a system of street lighting furnished by
 means of lamps placed not more than 200 yards apart' (except, presumably,
 one where an explicit speed limit or the 'national' speed limit applies).So 
 maybe GB:restricted_road would be better?


I assume  you didn't mean to shout in the above comment ;) (part of it is in
large characters on my computer)


For sure, let's finesse the actual text to relate to UK legislation.
GB:restricted_road is clearly a better definition that GB:urban. Here is the
definition - it mentions England, Wales and Scotland but not Northern
Ireland, so GB is correct
http://www.legislation.gov.uk/ukpga/1984/27/section/82

Can we find the relevant legal definitions of a motorway and a dual
carriageway for GB or for UK?


Regards,


Peter




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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Chris Hill

On 09/04/11 08:20, Peter Miller wrote:



On 9 April 2011 08:15, Peter Miller peter.mil...@itoworld.com 
mailto:peter.mil...@itoworld.com wrote:




On 6 April 2011 16:53, Ed Loach e...@loach.me.uk
mailto:e...@loach.me.uk wrote:

Richard wrote:

 I'd put the number for cars (ie 70mph for a dual
carriageway), and
 the source if it's not the number that's on the sign.

This is similar to what I've done. For areas where a national
speed
limit applies I have used
   maxspeed= (maximum speed for cars, which is the maximum
maximum I believe, if you see what I mean)
I was also tagging
   maxspeed:type=national
or
   maxspeed:type=national_dual_carriageway
(no others apply locally). I added these mainly for my use in case
the government ever change the maximum speed for cars on such
roads,
as has been rumoured on occasion in the press, so that I can use
XAPI or JOSM or similar to update the maxspeed values more
easily).


We seem to be nudging towards something close to a conclusion.

Can I suggest that the following two methods are valid, however
the second one should be considered to be 'better' and where it is
used then it should be retained to avoid edit warring.

I have worked a bit on the 'type' tagging to allow it to include
the county which might be GB or UK depending on how Northern
Ireland interprets the rules - is it always the same as the rest
of the UK?

On reflection the convention used elsewhere to put the IT:urban or
whatever into the source:maxspeed tag seems to be misunderstanding
the purpose of source tag which should be for such explanations as
'survey' or 'TfL open speed data' or whatever. Notice that I am
have used 'GB:urban' for the 30mph no sign situation to match up
better with 'IT:urban' etc.


I have added some more examples for each method for clarity

Method 1
maxspeed=national
source:maxspeed=survey


maxspeed=xx mph
source:maxspeed=survey


Method 2
maxspeed=60 mph
maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)
source:maxspeed=survey


maxspeed=70 mph
maxspeed:type=GB:motorway
source:maxspeed=survey

maxspeed=60 mph
maxspeed:type=GB:rural
source:maxspeed=survey

maxspeed=60 mph
maxspeed:type=numeric sign
source:maxspeed=survey

maxspeed=30 mph
maxspeed:type=GB:urban
source:maxspeed=survey

maxspeed=30 mph
maxspeed:type=numeric sign
source:maxspeed=survey

I *hate* the idea that signed speed limits that currently just need 
maxspeed=x would now need two extra tags. That is exactly what I meant 
by think of the mapper. Why should I add extra tags?


I have surveyed an area, added the road type, name, and a source tag, 
now to add a speed limit I need to double the number tags?!? This is ill 
conceived.


My suggestion:
maxspeed= x mph where it is signed.

maxspeed=national where NSL applies, with
national=single / dual to distinguish between single and dual 
carriageway limits. Motorways fall out automatically from the highway tag.


Please think of the mapper, and keep it simple. This will also be 
consistent with existing tagging / renderers etc and stands a chance of 
being used.


--
Cheers, Chris
user: chillly


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[Talk-GB] Publishing Self-Devised Walks

2011-04-09 Thread daniel
Hello all,

Over the past couple of weeks, I've come up with a couple of interesting
walks from my house.  I would like to publish these on my blog, in the
hopes that other people looking for walks in the area will find them. 
However, I haven't yet worked out a good way to do this.

One thought I had was to add all the constituent ways to a relation, and
then link to the relation shown on the OSM map (as in [0] and [1]). 
However, I wasn't sure if this was an abuse of relations, given that this
isn't a walk that exists anywhere but in my head (as opposed to a more
'official' walk).

At the other end of the spectrum is screenshots and using the GIMP to draw
my route on (or using a mapping site like BikeRouteToaster to draw the
lines on, and taking screenshots of that).  However, this seems really
lame (as you lose all of the slippy-map goodness, and the updating of the
surrounding area/data), so I'd prefer not to have to resort to this.

Has anyone else done something like this?  Have I missed a project
somewhere which is designed to store such things?  Any input would be much
appreciated.


Thanks,

Dan


[Footnote 0: http://www.openstreetmap.org/?relation=77959]
[Footnote 1: http://www.openstreetmap.org/?relation=93785]


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Re: [Talk-GB] Publishing Self-Devised Walks

2011-04-09 Thread Matt Williams
On 9 April 2011 13:00,  dan...@daniel-watkins.co.uk wrote:
 Hello all,

 Over the past couple of weeks, I've come up with a couple of interesting
 walks from my house.  I would like to publish these on my blog, in the
 hopes that other people looking for walks in the area will find them.
 However, I haven't yet worked out a good way to do this.

 One thought I had was to add all the constituent ways to a relation, and
 then link to the relation shown on the OSM map (as in [0] and [1]).
 However, I wasn't sure if this was an abuse of relations, given that this
 isn't a walk that exists anywhere but in my head (as opposed to a more
 'official' walk).

 At the other end of the spectrum is screenshots and using the GIMP to draw
 my route on (or using a mapping site like BikeRouteToaster to draw the
 lines on, and taking screenshots of that).  However, this seems really
 lame (as you lose all of the slippy-map goodness, and the updating of the
 surrounding area/data), so I'd prefer not to have to resort to this.

 Has anyone else done something like this?  Have I missed a project
 somewhere which is designed to store such things?  Any input would be much
 appreciated.

Maybe take a look at something like Show Your Journey http://syj.renevier.net/

-- 
Matt Williams
http://milliams.com

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Re: [Talk-GB] Maxspeed tagging for the UK

2011-04-09 Thread Peter Miller
On 9 April 2011 11:46, Chris Hill o...@raggedred.net wrote:

 On 09/04/11 08:20, Peter Miller wrote:



 On 9 April 2011 08:15, Peter Miller peter.mil...@itoworld.com mailto:
 peter.mil...@itoworld.com wrote:



On 6 April 2011 16:53, Ed Loach e...@loach.me.uk
mailto:e...@loach.me.uk wrote:

Richard wrote:

 I'd put the number for cars (ie 70mph for a dual
carriageway), and
 the source if it's not the number that's on the sign.

This is similar to what I've done. For areas where a national
speed
limit applies I have used
   maxspeed= (maximum speed for cars, which is the maximum
maximum I believe, if you see what I mean)
I was also tagging
   maxspeed:type=national
or
   maxspeed:type=national_dual_carriageway
(no others apply locally). I added these mainly for my use in case
the government ever change the maximum speed for cars on such
roads,
as has been rumoured on occasion in the press, so that I can use
XAPI or JOSM or similar to update the maxspeed values more
easily).


We seem to be nudging towards something close to a conclusion.

Can I suggest that the following two methods are valid, however
the second one should be considered to be 'better' and where it is
used then it should be retained to avoid edit warring.

I have worked a bit on the 'type' tagging to allow it to include
the county which might be GB or UK depending on how Northern
Ireland interprets the rules - is it always the same as the rest
of the UK?

On reflection the convention used elsewhere to put the IT:urban or
whatever into the source:maxspeed tag seems to be misunderstanding
the purpose of source tag which should be for such explanations as
'survey' or 'TfL open speed data' or whatever. Notice that I am
have used 'GB:urban' for the 30mph no sign situation to match up
better with 'IT:urban' etc.


 I have added some more examples for each method for clarity

Method 1
maxspeed=national
source:maxspeed=survey


 maxspeed=xx mph
 source:maxspeed=survey


Method 2
maxspeed=60 mph
maxspeed:type=GB:dual_carriageway (or GB:motorway, GB:rural, GB:urban)
source:maxspeed=survey


 maxspeed=70 mph
 maxspeed:type=GB:motorway
 source:maxspeed=survey

 maxspeed=60 mph
 maxspeed:type=GB:rural
 source:maxspeed=survey

 maxspeed=60 mph
 maxspeed:type=numeric sign
 source:maxspeed=survey

 maxspeed=30 mph
 maxspeed:type=GB:urban
 source:maxspeed=survey

 maxspeed=30 mph
 maxspeed:type=numeric sign
 source:maxspeed=survey

  I *hate* the idea that signed speed limits that currently just need
 maxspeed=x would now need two extra tags. That is exactly what I meant by
 think of the mapper. Why should I add extra tags?

 I have surveyed an area, added the road type, name, and a source tag, now
 to add a speed limit I need to double the number tags?!? This is ill
 conceived.

 My suggestion:
 maxspeed= x mph where it is signed.

 maxspeed=national where NSL applies, with
 national=single / dual to distinguish between single and dual carriageway
 limits. Motorways fall out automatically from the highway tag.

 Please think of the mapper, and keep it simple. This will also be
 consistent with existing tagging / renderers etc and stands a chance of
 being used.


I am not suggesting that you need to go and change anything. I am only
suggesting that if someone 'upgrades' the tagging by doing that work that it
is just fine and dandy and it shouldn't be reverted.

There are not 'two extra tags' anyway. The source:maxspeed tag is good
practice for any tag and can be considered optional for basic mapping.

Lets now consider default values for the maxspeed:type tag to cut down work
further. We could agree that the default value for maxspeed:type is numeric.
We could go further and say that the default value for maxspeed:type for a
single carriageway road with maxspeed=60 mph is 'GB:National' and also that
the default value for motorway and motorway_link with with maxspeed='70 mph'
is 'GB:motorway'. That way the extra tagging is only required in very few
places.

With 'Method 1' however there is much less work for application writers and
less chance that they misinterpret the rules for some country or other and
give out bad data or indeed don't implement that part of the code at all and
the mappers work is wasted. ITO, for example are not about to review all the
rules around the world in order to convert 'IT:urban' into km/h unless it is
made very easy to do.


Regards,

Peter


 --
 Cheers, Chris
 user: chillly



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Re: [Talk-GB] Publishing Self-Devised Walks

2011-04-09 Thread Nick Whitelegg

Hello Dan,

There is Freemap which allows you to store your own walks, it does use OSM ways 
but stores them locally. It doesn't use relations.

Not sure what other peoples thoughts would be but I'd guess storing them in OSM 
itself would clutter up the database and it's best stored elsewhere.

Nick

-dan...@daniel-watkins.co.uk wrote: -
To: talk-gb@openstreetmap.org
From: dan...@daniel-watkins.co.uk
Date: 09/04/2011 12:01PM
Subject: [Talk-GB] Publishing Self-Devised Walks

Hello all,

Over the past couple of weeks, I've come up with a couple of interesting
walks from my house.  I would like to publish these on my blog, in the
hopes that other people looking for walks in the area will find them. 
However, I haven't yet worked out a good way to do this.

One thought I had was to add all the constituent ways to a relation, and
then link to the relation shown on the OSM map (as in [0] and [1]). 
However, I wasn't sure if this was an abuse of relations, given that this
isn't a walk that exists anywhere but in my head (as opposed to a more
'official' walk).

At the other end of the spectrum is screenshots and using the GIMP to draw
my route on (or using a mapping site like BikeRouteToaster to draw the
lines on, and taking screenshots of that).  However, this seems really
lame (as you lose all of the slippy-map goodness, and the updating of the
surrounding area/data), so I'd prefer not to have to resort to this.

Has anyone else done something like this?  Have I missed a project
somewhere which is designed to store such things?  Any input would be much
appreciated.


Thanks,

Dan


[Footnote 0: http://www.openstreetmap.org/?relation=77959]
[Footnote 1: http://www.openstreetmap.org/?relation=93785]


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Re: [Talk-GB] Publishing Self-Devised Walks

2011-04-09 Thread Jerry Clough : SK53 on OSM

On 09/04/2011 12:00, dan...@daniel-watkins.co.uk wrote:

Hello all,

Over the past couple of weeks, I've come up with a couple of interesting
walks from my house.  I would like to publish these on my blog, in the
hopes that other people looking for walks in the area will find them.
However, I haven't yet worked out a good way to do this.

One thought I had was to add all the constituent ways to a relation, and
then link to the relation shown on the OSM map (as in [0] and [1]).
However, I wasn't sure if this was an abuse of relations, given that this
isn't a walk that exists anywhere but in my head (as opposed to a more
'official' walk).

At the other end of the spectrum is screenshots and using the GIMP to draw
my route on (or using a mapping site like BikeRouteToaster to draw the
lines on, and taking screenshots of that).  However, this seems really
lame (as you lose all of the slippy-map goodness, and the updating of the
surrounding area/data), so I'd prefer not to have to resort to this.

Has anyone else done something like this?  Have I missed a project
somewhere which is designed to store such things?  Any input would be much
appreciated.


Thanks,

Dan


[Footnote 0: http://www.openstreetmap.org/?relation=77959]
[Footnote 1: http://www.openstreetmap.org/?relation=93785]


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Adding personal walks with relations would certainly be an abuse of OSM: 
just imagine if we had a tiny fraction of the country's dog walkers doin 
the same! Such information is not open to verification, and is not 
related to on-the-ground features.


There are plenty of sites for sharing this kind of information: GPSies 
is one (see for example 
http://www.gpsies.com/map.do?fileId=szmbmawxbaehsmsf my RA mystery 
walk 
http://sk53-osm.blogspot.com/2011/03/not-very-mysterious-mystery-walk.html).


There are also sites like Nick Whitelegg's Freemap 
http://www.free-map.org.uk/freemap/index.php which are aiming to 
integrate the sort of information walkers are interested in sharing.


If you want to use OSM data to generate the route using routing it is 
possible to create a GPX or KML file on a number of routing engines 
(e.g., OpenRouteService, OpenMapQuest). The resulting trace can be 
displayed using OpenLayers with an OSM background or added to a site 
like GPSies. Have a look at the OL KML example here 
http://openlayers.org/dev/examples/kml-layer.html. Obviously the route 
you choose will depend on how much technical effort you want to expend.


Jerry
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Re: [Talk-GB] Publishing Self-Devised Walks

2011-04-09 Thread Craig Wallace

On 09/04/2011 12:00, dan...@daniel-watkins.co.uk wrote:

At the other end of the spectrum is screenshots and using the GIMP to draw
my route on (or using a mapping site like BikeRouteToaster to draw the
lines on, and taking screenshots of that).  However, this seems really
lame (as you lose all of the slippy-map goodness, and the updating of the
surrounding area/data), so I'd prefer not to have to resort to this.

Has anyone else done something like this?  Have I missed a project
somewhere which is designed to store such things?  Any input would be much
appreciated.


I would agree that these 'unofficial' routes don't really belong in OSM.
But depending on how your blog works, there are ways of showing the 
route on a slippy map.


eg you could draw the route on Gpsies, then use the IFRAME code that it 
provides to embed the map on your blog. Note by default this will show 
it on a Google map, for an OSM map you have to add the mapType=mapnik 
parameter, see this page for details (in German): 
http://www.gpsies.com/page.do?page=linkus


There are other options for track drawing websites with OSM maps listed 
here, though I'm not sure which support embedding: 
http://wiki.openstreetmap.org/wiki/Track_drawing_websites

Also note some blogs don't allow iframes.

Or if you have a Wordpress.org blog (ie hosted on your own server), then 
you can use the OSM plugin: http://wordpress.org/extend/plugins/osm/

This lets you show an OSM map with a GPX track overlay.
See an example on my blog: http://craig.neogeo.org.uk/blog/?p=61
Though I don't think this is possible on a Wordpress.com blog.

Craig

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