[Talk-GB] OS and OSM

2011-03-11 Thread Steve Chilton
I have been asked by editor of the Cartographic Journal to write a short piece 
on the effect of the release of OS OpenData on the OpenStreetMap project, and I 
am just trying to gather my thoughts, and make sure I cover all bases.
I was present at Blackadder's Society of Cartographers talk on Why OSM won't 
be bulk importing OS OpenData and am aware of the work Chris Hill has done on 
admin boundaries etc.
Obviously also aware of the ITO work with OS Locator and what people have done 
with that.
There was work on importing detailed water features, was that Chris as well 
(goes off to read back through his blog).
Can anyone point me to others who have explored the possibilities that OS 
OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value to 
OSM?

Cheers
STEVE

Steve Chilton, Learning Support Fellow
Educational Development Manager
Centre for Learning and Teaching Enhancement
Middlesex University
phone: 020 8411 5355
email: ste...@mdx.ac.uk
http://www.middlesex.wikispaces.net/user/view/steve8

Chair of the Society of Cartographers: http://www.soc.org.uk/

'Inspire Me!' lunch time showcase on Assessment and Feedback, organised by the 
Centre for Learning and Teaching Enhancement 
http://inspireme.middlesex.wikispaces.net/



___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Nick Whitelegg
Hi Steve,

I have been  asked by editor of the Cartographic Journal to write a short 
piece on  the effect of the release of OS OpenData on the OpenStreetMap  
project, and I am just trying to gather my thoughts, and make sure I  cover 
all bases.

  [snip]

Not sure how relevant this is but I'd like to offer some pro arguments to 
certain aspects of OpenData. At the moment I'm working on combining the Vector 
Map District tile set with footpaths from OSM. Phil Endecott's UK Map App 
(mobile app doing a similar sort of thing - but no slippy map tileset) looks 
pretty impressive.

I'm also starting work on an augmented reality Android app for walkers, for 
which I'm planning to use Land-Form Panorama height data.

So - even if OS OpenData is not being used directly within the main OSM 
database - I would say that it provides valuable additional data for OSM-based 
projects.

Nick




___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Tom Chance
Steve,

In Southwark I experimented with bulk importing buildings auto-traced from
OS StreetView, but gave up in favour of manually tracing from Bing imagery.
I was supplementing both methods with ground surveys.

I switched when I approached central London parts of Southwark, where OS
StreetView is of such poor quality that it was fairly useless.

In central and south Southwark I still think it provides a good first
pass, which can be improved by tracing Bing imagery and ground surveys to
refine shapes and add addresses.

Browse around and judge for yourself.

I would also cite the errors we have found in OS Locator as a reason for
preferring ground surveys, using the OS product as a tool to indicate
possible errors to check out. We found 56 errors in Southwark.

Regards,
Tom


On 11 March 2011 10:19, Steve Chilton s.l.chil...@mdx.ac.uk wrote:

 I have been asked by editor of the Cartographic Journal to write a short
 piece on the effect of the release of OS OpenData on the OpenStreetMap
 project, and I am just trying to gather my thoughts, and make sure I cover
 all bases.
 I was present at Blackadder's Society of Cartographers talk on Why OSM
 won't be bulk importing OS OpenData and am aware of the work Chris Hill has
 done on admin boundaries etc.
 Obviously also aware of the ITO work with OS Locator and what people have
 done with that.
 There was work on importing detailed water features, was that Chris as well
 (goes off to read back through his blog).
 Can anyone point me to others who have explored the possibilities that OS
 OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value
 to OSM?

 Cheers
 STEVE

 Steve Chilton, Learning Support Fellow
 Educational Development Manager
 Centre for Learning and Teaching Enhancement
 Middlesex University
 phone: 020 8411 5355
 email: ste...@mdx.ac.uk
 http://www.middlesex.wikispaces.net/user/view/steve8

 Chair of the Society of Cartographers: http://www.soc.org.uk/

 'Inspire Me!' lunch time showcase on Assessment and Feedback, organised by
 the Centre for Learning and Teaching Enhancement
 http://inspireme.middlesex.wikispaces.net/



 ___
 Talk-GB mailing list
 Talk-GB@openstreetmap.org
 http://lists.openstreetmap.org/listinfo/talk-gb




-- 
http://tom.acrewoods.net   http://twitter.com/tom_chance
___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Chris Hill

On 11/03/11 10:19, Steve Chilton wrote:

I have been asked by editor of the Cartographic Journal to write a short piece 
on the effect of the release of OS OpenData on the OpenStreetMap project, and I 
am just trying to gather my thoughts, and make sure I cover all bases.
I was present at Blackadder's Society of Cartographers talk on Why OSM won't be 
bulk importing OS OpenData and am aware of the work Chris Hill has done on admin 
boundaries etc.
Obviously also aware of the ITO work with OS Locator and what people have done 
with that.
There was work on importing detailed water features, was that Chris as well 
(goes off to read back through his blog).
Can anyone point me to others who have explored the possibilities that OS 
OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value to 
OSM?
OS Opendata gives us access to places we can't otherwise go, such as 
docks, but so does aerial photography. It provides features such as 
power lines and some water ways that cross land that we don't have 
access to.  It gives us access to the official, up-to-date boundary data 
that is just not available in any other form that we can use. It is much 
more up-to-date than some of the aerials and some of the various forms 
of data have names on them (Streetview and Locator) though that does 
have some small level of errors. There is also the postcode dataset 
which is a valuable source of data that would be very difficult to 
gather exhaustively otherwise.


On the down side the level of detail is low. The building outlines, 
especially houses, are clearly crude and only indicative. I have been 
adding buildings and, combined with a survey, addresses and it is useful 
to use OS Streetview where the aerials are too old to see recent 
developments or occasionally where buildings are hidden by tree cover, 
but generally Streetview is not as good as aerials, which themselves are 
not that detailed in some areas I'm interested in. The VectorMap is 
(counter to its title) really taken from a render layer. Waterways have 
annoying gaps where anything crosses them. Woods have somewhat chunky 
outlines and annoying gaps. StreetView has hints of tracks where the 
names remain but the track detail has been removed.


The alignment of Streetview (against multiple GPS traces) is 
consistently off in the areas I've used, but that could be the way 
someone in OSM has used it. Aerials are also off, but not as 
consistently, which means always checking the alignment before use.


Some of the datasets are more useful than others. BoundaryLine is very 
useful, VectorMap District Settlements by area seem to me to be total 
rubbish - horribly crude, undefined as to what they show and badly 
out-of-date.


I think OS Opendata has been useful, but it has also attracted the 
armchair tracer. Much of North and North East  Lincolnshire is only in 
OSM because it has been traced from OS OpenData. All of the detail from 
a ground survey is missing, yet the map looks quite complete at first 
glance. According to Jerry's blog ( 
http://sk53-osm.blogspot.com/2011/02/updating-pub-density.html ) Grimsby 
has no pubs, this because Grimsby has been traced not surveyed. OS 
OpenData made this possible but it is not directly responsible.


--
Cheers, Chris
user: chillly


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Ed Avis
Tom Chance tom@... writes:

Steve, In Southwark I experimented with bulk importing buildings auto-traced
from OS StreetView, but gave up in favour of manually tracing from Bing
imagery.

In fairness you should mention that the Bing imagery was not available at the
time of the original OpenData release.  It's clear that the simplified Street
View building shapes are inferior to high-res aerial photos that Bing has
let us use.  But back when we only had the low-res Yahoo photos, the Street View
building shapes were very useful and typically superior to the early OSM
building tracing efforts.

You mentioned errors in OS Locator, and it does indeed have some, but typically
fewer errors than a single-pass ground survey (this based on my experience
rechecking mismatches across London).

It is great to do a ground survey and then use OS Locator to check for mistakes,
but it would be equally possible to populate names from OS Locator and then do
a ground survey to check for mistakes.  The total amount of work involved is the
same, but by kick-starting from the OS data you get to the 90% mark faster, even
though the final 10% takes time.  Again, I would re-iterate that the OS Locator
names usually have a lower error rate than OSM ground surveys, so I would have
more confidence in a street name populated from OS only than in one that had 
been
found on the ground but not checked against OS.

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


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Ed Avis
Chris Hill osm@... writes:

Much of North and North East  Lincolnshire is only in 
OSM because it has been traced from OS OpenData.

Opinions differ about whether this makes OS OpenData a good thing or a bad 
thing.

Personally I am delighted that people have been able to quickly boost OSM's
coverage from 'nothing' to 'basic' in these areas, and provided a base for
further mapping.  But then, I am an incrementalist kind of mapper and I almost
always work by refining and adding detail to areas already partly complete.

Opinions also differ about whether having basic coverage in an area, rather than
a blank sheet, attracts OSM users and contributors or drives them away.  This 
too
usually depends on the way an individual contributor prefers to work.

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


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Andy Allan
On Fri, Mar 11, 2011 at 12:59 PM, Ed Avis e...@waniasset.com wrote:

 It is great to do a ground survey and then use OS Locator to check for 
 mistakes,
 but it would be equally possible to populate names from OS Locator and then do
 a ground survey to check for mistakes.

Rhhhttt - that's not exactly an interesting day out for most
people. Of course, the worse a job you make of armchair mapping (and
boy am I sick to the back teeth of cleaning up the mess left by
armchair mappers) the more useful the ground survey.

 The total amount of work involved is the
 same, but by kick-starting from the OS data you get to the 90% mark faster, 
 even
 though the final 10% takes time.  Again, I would re-iterate that the OS 
 Locator
 names usually have a lower error rate than OSM ground surveys, so I would have
 more confidence in a street name populated from OS only than in one that had 
 been
 found on the ground but not checked against OS.

Great. An OSM database filled with only OS data is a) at very best,
only as accurate as OS data and b) a massive disincentive to people to
go out mapping.

I really don't understand why you keep arguing against the sequence of
a) send some mappers out then b) use OS as a check for the minority of
mistakes. Doing it your way leads to vast areas with names filled out
and nothing else. If I could find a way to stop you from damaging our
community in this way, and damaging the long-term prospects for the
OSM project, then I would.

Cheers,
Andy

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Steve Chilton
Tom

I am sure the overall message is going to be ground survey wins.
I am a get-out-and-map-it person but see a place for some of this data within 
that process.
Case studies like this are part of the evidence for why this is the case.
But also want to reflect more views than just my own.

Thanks for response

Cheers
STEVE

From: Tom Chance [mailto:t...@acrewoods.net]
Sent: 11 March 2011 11:00
To: Steve Chilton
Cc: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] OS and OSM

Steve,

In Southwark I experimented with bulk importing buildings auto-traced from OS 
StreetView, but gave up in favour of manually tracing from Bing imagery. I was 
supplementing both methods with ground surveys.

I switched when I approached central London parts of Southwark, where OS 
StreetView is of such poor quality that it was fairly useless.

In central and south Southwark I still think it provides a good first pass, 
which can be improved by tracing Bing imagery and ground surveys to refine 
shapes and add addresses.

Browse around and judge for yourself.

I would also cite the errors we have found in OS Locator as a reason for 
preferring ground surveys, using the OS product as a tool to indicate possible 
errors to check out. We found 56 errors in Southwark.

Regards,
Tom

On 11 March 2011 10:19, Steve Chilton 
s.l.chil...@mdx.ac.ukmailto:s.l.chil...@mdx.ac.uk wrote:
I have been asked by editor of the Cartographic Journal to write a short piece 
on the effect of the release of OS OpenData on the OpenStreetMap project, and I 
am just trying to gather my thoughts, and make sure I cover all bases.
I was present at Blackadder's Society of Cartographers talk on Why OSM won't 
be bulk importing OS OpenData and am aware of the work Chris Hill has done on 
admin boundaries etc.
Obviously also aware of the ITO work with OS Locator and what people have done 
with that.
There was work on importing detailed water features, was that Chris as well 
(goes off to read back through his blog).
Can anyone point me to others who have explored the possibilities that OS 
OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value to 
OSM?

Cheers
STEVE

Steve Chilton, Learning Support Fellow
Educational Development Manager
Centre for Learning and Teaching Enhancement
Middlesex University
phone: 020 8411 5355
email: ste...@mdx.ac.ukmailto:ste...@mdx.ac.uk
http://www.middlesex.wikispaces.net/user/view/steve8

Chair of the Society of Cartographers: http://www.soc.org.uk/

'Inspire Me!' lunch time showcase on Assessment and Feedback, organised by the 
Centre for Learning and Teaching Enhancement 
http://inspireme.middlesex.wikispaces.net/



___
Talk-GB mailing list
Talk-GB@openstreetmap.orgmailto:Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb



--
http://tom.acrewoods.net   http://twitter.com/tom_chance
___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Dave F.

On 11/03/2011 12:59, Ed Avis wrote:

It's clear that the simplified Street
View building shapes are inferior to high-res aerial photos that Bing has
let us use.


But only with older buildings. OS SV is much more upto date with new 
version being issued every 6 months (?).


Dave F.

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


[Talk-GB] OS, OSM and field boundaries

2011-03-11 Thread Mike Harris
Although the OS has at last been forced into releasing some data we have 
paid for, it is still withholding field boundaries (as per OS 1:25k). 
These are invaluable for footpath walkers in agricultural areas (i.e. 
most of England and parts of Scotland and Wales) even though inevitably 
out-of-date (and the poor registration between the rights of way GIS 
layer and the base mapping can all too often leave you backtracking 
after walking a few hundred metres on the wrong side of the hedge!). 
Clearly most boundaries cannot readily be surveyed on the ground by OSM 
workers (short of triangulation) although satellite mapping is a big 
help where licence-free and clear enough. (Nick and others - thanks for 
the great work). Sadly I still cannot really use OSM for footpath 
walking away from conurbations. On a smart phone the zoom limitations 
make the OS 1:25k mapping of limited use (although Multimaps' OS version 
is better). Google satellite mapping is often too dark to read out of 
doors (and tiles cannot be downloaded for outdoor use because of 
Google's fair usage terms - as I have learned the hard way after 
having my IP address blocked by Google for 24 hours!); Google Maps is of 
little use out of town. What is needed in OSM for walkers - but how to 
do it? (thanks to Nick and others for great work) is (a) contours and 
(b) field boundaries.


Mike

On 11/03/2011 12:00, talk-gb-requ...@openstreetmap.org wrote:

Send Talk-GB mailing list submissions to
talk-gb@openstreetmap.org

To subscribe or unsubscribe via the World Wide Web, visit
http://lists.openstreetmap.org/listinfo/talk-gb
or, via email, send a message with subject or body 'help' to
talk-gb-requ...@openstreetmap.org

You can reach the person managing the list at
talk-gb-ow...@openstreetmap.org

When replying, please edit your Subject line so it is more specific
than Re: Contents of Talk-GB digest...


Today's Topics:

1. OS and OSM (Steve Chilton)
2. Re: OS and OSM (Nick Whitelegg)
3. Re: OS and OSM (Tom Chance)
4. Re: OS and OSM (Chris Hill)


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


--
*/Mike Harris/*
___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Andy Allan
On Fri, Mar 11, 2011 at 10:19 AM, Steve Chilton s.l.chil...@mdx.ac.uk wrote:
 I have been asked by editor of the Cartographic Journal to write a short 
 piece on the effect of the release of OS OpenData on the OpenStreetMap 
 project, and I am just trying to gather my thoughts, and make sure I cover 
 all bases.

This isn't quite what you are looking for perhaps, but my main
overriding thought on OS OpenData is that it would be almost
impossible for the OS to give OSM so many benefits without helping
anyone else.

For all the kinds of data that OSM excels at - road centrelines,
parks, footpaths, names etc, the OpenData can be a great assistance as
part of our toolchains - helping us spot mistakes and omissions and so
on. But all the products that cover these areas are pretty much
useless in of themselves - the StreetView map is pretty dreadful to
use, the vector products are all chopped-up features only suitable for
rendering with the same scales and feature widths as the raster maps
they have been intended for. So there's almost no chance that someone
can build interesting and exciting things on top of these products
without replicating all the work we're doing in OSM.

As for the things we can't collect easily - boundaries, post codes and
so on, these datasets are functionally complete, but were never going
to compete with OSM.

I think if I'd been asked to decide what to release with the aim of
improving OSM while making sure its not undermined, I doubt I could
have done a better job.

Cheers,
Andy

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Ed Avis
Andy Allan gravitystorm@... writes:

It is great to do a ground survey and then use OS Locator to check for
mistakes, but it would be equally possible to populate names from OS Locator
and then do a ground survey to check for mistakes.
 
Rhhhttt - that's not exactly an interesting day out for most
people.

Walking round collecting street names.  That is how I started in OSM and it is
still today the core of my mapping activity.  (Although these days, a typical
'noname hunt' ends up with mostly building names and POIs mapped, most of the
unnamed streets having turned out to be service roads or footways.  But I do
try to walk along them all on foot.)

Great. An OSM database filled with only OS data is a) at very best,
only as accurate as OS data and b) a massive disincentive to people to
go out mapping.

As I've mentioned this 'complete disincentive' is opinion, not fact, and
for me personally it's an opinion I do not agree with.  I have found the OS
data invaluable for provoking further mapping expeditions and refinement of
areas which, until the OpenData release, had appeared to be complete.  (They
weren't.)

For example, at
http://www.openstreetmap.org/?lat=51.548234lon=-0.157174zoom=18layers=M
OS Street View showed some extra roads which weren't mapped.  I traced in the
roads and then walked along each one finding building names and other features.
In the end, they turned out to be un-named service roads, but it was useful to
revisit the area to check it in more detail.

I really don't understand why you keep arguing against the sequence of
a) send some mappers out then b) use OS as a check for the minority of
mistakes.

I don't argue against that at all, I think it's great.  But in fact that is not
the classical OSM way, which has been (a) armchair trace from Yahoo imagery
then (b) send out the mappers to find street names and other stuff.

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


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS, OSM and field boundaries

2011-03-11 Thread Phil Endecott

Mike Harris wrote:
What is needed in OSM for walkers - but how to 
do it? (thanks to Nick and others for great work) is (a) contours and 
(b) field boundaries.


Contours (nominally at 1:50,000) are included in OS OpenData.


Regards,  Phil.








___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Dave F.

On 11/03/2011 10:19, Steve Chilton wrote:

I have been asked by editor of the Cartographic Journal to write a short piece 
on the effect of the release of OS OpenData on the OpenStreetMap project, and I 
am just trying to gather my thoughts, and make sure I cover all bases.
I was present at Blackadder's Society of Cartographers talk on Why OSM won't be 
bulk importing OS OpenData and am aware of the work Chris Hill has done on admin 
boundaries etc.
Obviously also aware of the ITO work with OS Locator and what people have done 
with that.
There was work on importing detailed water features, was that Chris as well 
(goes off to read back through his blog).
Can anyone point me to others who have explored the possibilities that OS 
OpenData provided - PARTICULARLY if they can evidence WHY it is NOT of value to 
OSM?

C


I agree with what Chris Hill says.

Also, I find it extremely disappointing you're writing a piece of 
blatantly bias copy.


OS SV is very useful for referencing names  recent urban additions.

IMO the *vast* majority of problems that came from bulk importing arose 
due to the incompetence of the importers, *not* the value of the data.


If the imports are done in reasonably sizes chunks  then *checked* 
afterwards they bring value to the OSM database.


Cheers
Dave F.

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS, OSM and field boundaries

2011-03-11 Thread Andy Allan
On Fri, Mar 11, 2011 at 1:42 PM, Steve Doerr
steve.do...@blueyonder.co.uk wrote:
 Field boundaries can be traced from Bing? A lot of work though.

Depends on how many mappers we have ;-) When we find out how to treble
the number of people mapping in the UK, most of our
external-dataset-needs would disappear. And in my area it looks like
of all the people who signed up and got as far as picking their home
location, less than a third have ever mapped...

I think we can divide things into things that are actually impossible
for us to map and things that only seem impossible given the number
of mappers we have and for the second lot (which includes field
boundaries) work on increasing the community rather than chasing
datasets.

Cheers,
Andy

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread SomeoneElse

On 11/03/2011 13:31, Ed Avis wrote:
I don't argue against that at all, I think it's great. But in fact 
that is not

the classical OSM way, which has been (a) armchair trace from Yahoo imagery
then (b) send out the mappers to find street names and other stuff.


(adopts tone from the four Yorkshiremen sketch)

You had Yahoo Imagery?  Luxury!

Round where I live there was one GPS trace (leading from a motorway 
junction to a pub) and some B roads badly traced from NPE.  The Yahoo 
imagery is barely enough to tell you what county you're in.


Cheers,
Yet Another Andy


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS, OSM and field boundaries

2011-03-11 Thread SomeoneElse

On 11/03/2011 13:42, Steve Doerr wrote:
Field boundaries can be traced from Bing? A lot of work though. 
Contours can be done using the same method as Cycle Map.




Field boundaries can be traced in this way, with the caveat that 10 
years can be long time in terms of field boundaries (certainly what I've 
seen of the Bing data locally seems to derives from getmapping's 
Millennium Map and dates to the early 2000s.  Still often better than 
the OS though...


I've certainly used Bing to fill in field boundaries locally, based 
mostly on what I can see from footpaths and roads.  The sun angle of the 
coverage locally is quite low enabling you to tell hedges and fences 
apart in 90% of cases.


Cheers,
Andy

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Steve Doerr

On 11/03/2011 13:39, Dave F. wrote:

IMO the *vast* majority of problems that came from bulk importing 
arose due to the incompetence of the importers, *not* the value of the 
data.


If the imports are done in reasonably sizes chunks  then *checked* 
afterwards they bring value to the OSM database.


A halfway house between bulk imports and ignoring OS OpenData entirely 
would be providing background images in the editors. I don't see why 
this shouldn't be done for pretty much all the OS data sets. (I admit, 
though, that I have no idea of the technical complexity that would be 
involved.)


--
Steve


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Andy Allan
On Fri, Mar 11, 2011 at 2:42 PM, Steve Doerr
steve.do...@blueyonder.co.uk wrote:
 On 11/03/2011 13:39, Dave F. wrote:

 IMO the *vast* majority of problems that came from bulk importing arose
 due to the incompetence of the importers, *not* the value of the data.

 If the imports are done in reasonably sizes chunks  then *checked*
 afterwards they bring value to the OSM database.

 A halfway house between bulk imports and ignoring OS OpenData entirely would
 be providing background images in the editors. I don't see why this
 shouldn't be done for pretty much all the OS data sets. (I admit, though,
 that I have no idea of the technical complexity that would be involved.)

We've got OS StreetView and the ITO Locator layer in Potlatch2
already, and they are very useful. I'd expect some of the vector
products when the p2 vector background handling is more mature.

Are there any in particular you were thinking of?

Cheers,
Andy

PS There's lots of out-of-copyright layers in Potlatch2 too, but
that's not what we're discussing.

___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Ed Loach
Steve wrote:

 I sort of have a
 feeling Code-Point Open would be useful, but I can't immediately
 say
 why.

Can I point you at a couple of prior posts to this list?
http://lists.openstreetmap.org/pipermail/talk-gb/2011-January/010652
.html
(announcing a way of using them)
http://lists.openstreetmap.org/pipermail/talk-gb/2011-February/01090
1.html
(announcing they'd been used)

Ed
 


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Steve Doerr

On 11/03/2011 16:55, Ed Loach wrote:

Steve wrote:


I sort of have a
feeling Code-Point Open would be useful, but I can't immediately
say
why.

Can I point you at a couple of prior posts to this list?
http://lists.openstreetmap.org/pipermail/talk-gb/2011-January/010652
.html
(announcing a way of using them)
http://lists.openstreetmap.org/pipermail/talk-gb/2011-February/01090
1.html
(announcing they'd been used)



Thanks, Ed. I look forward to this facility reaching DA and ME postcode 
areas.





___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] 10000 scale withdrawn

2011-03-11 Thread Phil Endecott

andynbe...@gmail.com wrote:
I wonder what will happen to OS streetview when the 1 scale mapping is  
withdrawn in 2 years time. The 1 is being replaced by VectorMap local  
under the Public Sector Mapping Agreement.


Streetview is described as one of the styles of VectorMap Local:

https://www.ordnancesurveyvectormap.com/meetingYourRequirements/

Styles
Black and White, Streetview, 1:10 000 Scale Raster, Standard Style 1,
Standard Style 2, Standard Style 3

What that means in terms of open availability I don't know.


Phil.




___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb


Re: [Talk-GB] OS and OSM

2011-03-11 Thread Steve Doerr

On 11/03/2011 21:33, Chris Hill wrote:

Steve,
I created the codepoint overlay. Do you want me to add the DA and ME 
postcode areas?


I only added the areas that people ask for to keep the load down.



Hi, Chris! Yes, I'd love you to, but that only obscures the point I was 
originally making, which is that, given an automated process and an 
adequate infrastructure, this and all the other relevant OS data sets 
could have been available to *all* UK mappers by now - not just those 
who (a) know how to do it themselves or (b) know whom to ask!


Incidentally, I thought I read that Nominatim were implementing 
CodePoint Open, and even thought I'd seen it in action, but it's not 
there now: was I mistaken?


--
Steve


___
Talk-GB mailing list
Talk-GB@openstreetmap.org
http://lists.openstreetmap.org/listinfo/talk-gb