From: Steve Doerr steve.do...@blueyonder.co.uk
Sent: Sunday, May 30, 2010 3:08 PM
Looking forward to testing this, but having some problems with the
prerequisites. I've installed this 'Python' thing (version 2.6) and the
shapely library, but the NumPy install is failing with a message 'Python
Also fuzzer is a bugger to get working and I don't know how to edit the
fuzzyselect.py to get it doing what I wanted (i.e. auto-tracing from OS
StreetView), so this script should definitely help!
On Fri, 2010-05-28 at 10:11 +0100, TimSC wrote:
Hi mappers,
Thanks for the comments on automatic
Jamison xtee...@googlemail.com
Subject: Re: [Talk-GB] building shapes from OS Street View, with code
To: TimSC mapp...@sheerman-chase.org.uk
Cc: talk-gb@openstreetmap.org
Date: Friday, 28 May, 2010, 10:29
Also fuzzer is a bugger to get working and I don't know how to edit the
fuzzyselect.py to get
Potlatch's b option will place source=OS OpenData StreetView (note no
underscores) if you have OS SV in the background. I use this as I prefer 1
keystroke to 20 or so.
From: TimSC mapp...@sheerman-chase.org.uk
To: talk-gb@openstreetmap.org
Sent: Fri, 28 May,
...any reason why no underscores with Potlatch?
--- On Fri, 28/5/10, Jerry Clough - OSM sk53_...@yahoo.co.uk wrote:
From: Jerry Clough - OSM sk53_...@yahoo.co.uk
Subject: Re: [Talk-GB] building shapes from OS Street View, with code
To: talk-gb@openstreetmap.org
Date: Friday, 28 May, 2010, 11:15
Ah yes, the recommended tag is good. I didn't notice one had
been chosen
(but it is a bit long for my taste). So use
source=OS_OpenData_StreetView for verified buildings.
A bit long yes, and probably not what Potlatch uses if you press 'b'
when the Streetview background is selected (I see
Ask Richard F!
From: Tim François sk1pp...@yahoo.co.uk
To: talk-gb@openstreetmap.org; Jerry Clough - OSM sk53_...@yahoo.co.uk
Sent: Fri, 28 May, 2010 11:20:10
Subject: Re: [Talk-GB] building shapes from OS Street View, with code
...any reason why
this manually! Every day's a school
day...
*goes off to try and find a page with more neat time saving tricks...*
--- On Fri, 28/5/10, Jerry Clough - OSM sk53_...@yahoo.co.uk wrote:
From: Jerry Clough - OSM sk53_...@yahoo.co.uk
Subject: Re: [Talk-GB] building shapes from OS Street View
Tim,
In Potlatch you can also use 'r' or 'Shift-R' to repeat the tags
from the last way you had selected.
See
[1]http://wiki.openstreetmap.org/wiki/Potlatch/Keyboard_shortcuts
GrahamS
On Fri, 28 May 2010 10:39 +, Tim François
sk1pp...@yahoo.co.uk wrote:
...he scares me
Only
Thanks for that - I don't use Potlatch, but the amazing array of shortcuts for
everything astounds me every time: some good work by the author!
--- On Fri, 28/5/10, Graham Stewart gra...@dalmuti.net wrote:
From: Graham Stewart gra...@dalmuti.net
Subject: Re: [Talk-GB] building shapes from OS
Tom Chance t...@... writes:
On 24 May 2010 15:24, Gregory nomoregrapes at googlemail.com wrote:
Harry has done some good blog posts about London's gaps in buildings. But this
is an area with strong mapping activity. We can leave it to locals to trace
buildings in the gaps with some
On Tue, May 25, 2010 at 06:24:25PM +0100, Roy Jamison wrote:
I have tried using the JOSM plugin to trace buildings but can't get it
to work, it keeps coming up with a problem with the child process. Is
Same here: see http://josm.openstreetmap.de/ticket/5068
ael
TimSC mapp...@... writes:
I have done a small test of automatically tracing buildings from OS
Street View.
http://osm.org/go/eurUp7x0Q-
The biggest problem I can see is where roads or text labels obsure the
buildings.
Yes, in those cases you just have to guess where the building might go,
On 24 May 2010 11:16, Ed Avis e...@waniasset.com wrote:
Once this gets going we can produce a 'buildings noname' map for people to
go
out and verify the position and street address of buildings.
I didn't think anyone was suggesting this be done on any kind of expansive
area. It shouldn't be
Gregory nomoregra...@... writes:
[trace buildings from OS]
Once this gets going we can produce a 'buildings noname' map for people to go
out and verify the position and street address of buildings.
I didn't think anyone was suggesting this be done on any kind of expansive
area. It shouldn't be
Robert Whittaker (OSM) wrote:
My understanding is that the current terms from OS are
incompatible with ODbL (in particular the part that allows
produced works to be released to the public domain).
This is a canard and I wish it would stop coming up. ODbL does _not_ say
that Produced Works
It appears the choice for buildings is a fight between OS maps, which are likely
derived from high-resolution aerial photos but have been simplified, and the
somewhat lower-resolution photo images available to OSM. It is not really
possible to survey building shapes on the ground since GPS isn't
On 24 May 2010 14:43, Richard Fairhurst rich...@systemed.net wrote:
I don't know what the quality of StreetView is like in your area, but I
would weep if someone were to blindly trace from StreetView in Charlbury
without ever having visited it. The building outlines just aren't that
great.
Ed Avis wrote on 24/05/2010 15:05:
It appears the choice for buildings is a fight between OS maps, which are
likely
derived from high-resolution aerial photos but have been simplified, and the
somewhat lower-resolution photo images available to OSM. It is not really
possible to survey
On 24 May 2010 14:56, Richard Fairhurst rich...@systemed.net wrote:
Robert Whittaker (OSM) wrote:
My understanding is that the current terms from OS are
incompatible with ODbL (in particular the part that allows
produced works to be released to the public domain).
This is a canard and I wish
Robert Whittaker (OSM) wrote:
My reading of 4.3 is that you would have to tell people that the
image was derived from OSM and that the OSM database is
available under ODbL.
To comply with ODbL for data obtained from OSM, you have to at least provide
attribution to OSM.
That does not
On 24 May 2010 16:42, Richard Fairhurst rich...@systemed.net wrote:
Robert Whittaker (OSM) wrote:
My reading of 4.3 is that you would have to tell people that the
image was derived from OSM and that the OSM database is
available under ODbL.
To comply with ODbL for data obtained from OSM, you
TimSC mapp...@... writes:
Hi all,
I have done a small test of automatically tracing buildings from OS
Street View. I have limited this to Wood Street Village, near Guildford.
That is a nice piece of work. It is not as good as you could get from the Surrey
aerial photographs but no
On 23 May 2010 20:00, TimSC mapp...@sheerman-chase.org.uk wrote:
I guess the fundamental question is, is this
quicker than doing the whole thing manually?
For buildings that are semi-detached or terraces, the terracer plugin seems
to pay attention to the order the nodes were created/numbered,
On 23 May 2010 20:00, TimSC mapp...@sheerman-chase.org.uk wrote:
I have done a small test of automatically tracing buildings from OS
Street View. I have limited this to Wood Street Village, near Guildford.
I have not done any manual improvements but these should be done to
improve the quality.
From: Robert Scott li...@humanleg.org.uk
That's great! I can stop reading about Harris operators. I totally agree
about orthogonal snapping.
Orthogonal snapping would be useful more generally - do any of the editors
have this feature for manually drawn buildings etc.?
--
Steve
On Sat, Apr 10, 2010 at 9:23 AM, Steve Doerr
steve.do...@blueyonder.co.uk wrote:
Orthogonal snapping would be useful more generally - do any of the editors
have this feature for manually drawn buildings etc.?
JOSM has an Orthogonalise shape option which is very useful for buildings.
Glenn.
It's worth noting that the Yahoo aerial photography is also out of date; in
some
cases [1] people have traced streets from the photo which bear no relation to
what's on the ground. Yet nobody suggests we should stop tracing from it.
Yes they do.
Glenn wrote:
JOSM has an Orthogonalise shape option which is very useful
for buildings.
And a terracer plugin which I find useful for converting traced
buildings to semi-detached* (or however many) properties.
Ed
* Slight issue when the width of the two semi-detached houses
together is less
On Saturday 10 April 2010, TimSC wrote:
Converting edge fragments to polygons is the slow step at the moment -
about 15 minutes a tile. I am using the approach describe in the link
below. Fortunately, I know a bit of Boost.Python and C++ if we need the
speed. I suspect a better algorithm in
Andy Allan gravityst...@... writes:
I hope you have seen the vast tracts of London that have building
outlines in OSM already - all of much higher detail than Street View?
I don't know about you, but for me the OS building outlines appear to be of far
higher detail than I can map myself by
Andy Robinson (blackadder-lists ajrli...@... writes:
But what is the point of just doing building=yes. Does that really add to
OSM? Surely tracing buildings (with aids or not) would be better associated
with address data inclusion rather than just making a pretty map?
You might consider it
Hi Tim,
That is exactly the sort of thing I had envisaged writing - you have nearly
finished before I got started - well done!
Graham.
On 9 April 2010 22:25, TimSC mapp...@sheerman-chase.org.uk wrote:
Hi again,
I have been working on auto tracing buildings and I'm making progress. I
was
blatant lieYeah, me too. I was just about to do that!
/blatant lie
Fantastic!
- Original Message -
From: Graham Jones
To: TimSC
Cc: talk-gb@openstreetmap.org
Subject: Re: [Talk-GB] building shapes from OS Street View
Date: Fri, 9 Apr 2010 22:32:40 +0100
Hi Tim
Hey,
That's great! I can stop reading about Harris operators. I totally agree about
orthogonal snapping.
How well would this scale up to the whole country? (!! Not automatically
importing the results of course !!) I'm thinking about tile/batch sizes, tile
boundary issues, any necessity for
On 6 April 2010 12:46, TimSC mapp...@sheerman-chase.org.uk wrote:
Hi again,
Thanks for the feedback on building traces. The consensus seems to be
for a JOSM plugin while others saying all surveying should be done on
the ground.
Personally, I'd be happy to see a JOSM plugin similar to the
On Tue, Apr 6, 2010 at 12:46 PM, TimSC mapp...@sheerman-chase.org.uk wrote:
In response to the comment no imports ever, I would point out that
building imports is a completely different situation than that of public
roads. A glance at OS Street View suggests that about 99% of buildings are
On Tue, Apr 6, 2010 at 1:22 PM, Robert Scott li...@humanleg.org.uk wrote:
I'd say about 95% of buildings are rectangles. About 99% of buildings are
purely orthogonal lines.
We need to be careful about extracting shapes from products that are
known to be downsampled. A quick look at Street
On Tue, Apr 6, 2010 at 5:26 PM, TimSC mapp...@sheerman-chase.org.uk wrote:
Andy Allan wrote:
On Tue, Apr 6, 2010 at 12:46 PM, TimSC mapp...@sheerman-chase.org.uk wrote:
If we use only manual surveying, we can only
achieve coverage of about 1%. I don't think that is satisfactory. Imports
are
On Tue, 2010-04-06 at 18:07 +0100, Dave Stubbs wrote:
Basically: please don't break the map :-)
perhaps a stupid question... Is there no version control? I couldn't
find anything on the wiki about it.
___
Talk-GB mailing list
On Tue, Apr 6, 2010 at 6:14 PM, Henry Gomersall h...@cantab.net wrote:
On Tue, 2010-04-06 at 18:07 +0100, Dave Stubbs wrote:
Basically: please don't break the map :-)
perhaps a stupid question... Is there no version control? I couldn't
find anything on the wiki about it.
Sure.
But if you
On Mon, Apr 5, 2010 at 5:57 PM, TimSC mapp...@sheerman-chase.org.uk wrote:
I guess the questions we have to address are: is
this data worth having in OSM?
Yes
are there any better sources of
building outline?
OS Mastermap. But since we won't get access to that any time soon
If we do
Tim,
I think this is a really good idea, and is one of the main benefits of the
StreetView data.
I have been wondering how to do this, but haven't got far.
I would like to see a plugin for josm that takes a raster input (landsat,
yahoo, StreetView) and processes it into 'draft' ways around areas
On Monday 05 April 2010, Andy Allan wrote:
Any general thoughts on buildings and imports?
Don't import stuff. I'll be happy to see you import things that you
are willing, personally, to maintain and update, and I'd prefer you
imported using Potlatch or JOSM and used the Street View, Yahoo,
Kevin Peat wrote:
Sent: 05 April 2010 7:50 PM
To: David Earl; Talk-GB@openstreetmap.org
Subject: Re: [Talk-GB] building shapes from OS Street View
In the absence of vector data I agree that a controlled way of auto-tracing
the building outlines (a JOSM plug-in would be ideal for me) is the way
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