Re: [OSM-talk] Fw: Fun: Collect your favourite mappers

[Gregory]

Where I am, winter is moving in.
Last night I cycled to a friend's house(he recently moved further away!)
after work and just got some house numbers mapped before it got too dark.
My right hand was near frozen because I still can't find both my cycling
gloves.

It would have been nicer for me to spend the 30 dark minutes playing cards
with him and showing him how fun OSM is.

On 15 October 2012 20:44, Alan Millar  wrote:

> On Oct 15, 2012, at 1:39 PM, "Dave F."  wrote:
> > Wouldn't it be better if you spent your time mapping?
>
> Hah! Good one! I love hearing everyone's "you should do OSM like I do"
> dictums.  Always entertaining.
>
> Oh, be sure to tell us how to quantify and measure "good" for OSM, so
> we'll know what's "better". Be sure to explain your metrics, including how
> to quantify the obligatory "build the community" mantra (unless, of course,
> your criteria doesn't include that; I won't presume to know).  I wonder how
> one could measure the amount of fun injected into and sucked out of a
> project. There's gotta be some social science math in there somewhere. Very
> interesting...
>
> > There seems to be a hell of a lot of ancillary stuff going on around OSM.
>
> There sure is. Isn't it awesome?  It's like people are actually having fun
> with OSM.
>
> > Maybe a 'Back to Basics' push might not go amiss.
>
> Actually, that is a really good idea. Let us know what you come up with.
> I'm curious about your plans on how you're going to engage more people to
> get involved to make OSM better.
>
> Interesting times for OSM these days!
>
> -Alan
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-- 
Gregory
o...@livingwithdragons.com
http://www.livingwithdragons.com
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[OSM-talk] Obscure African dirt tracks in Google Maps - how does Google records them ? Automated tracing ?

[Jean-Marc Liotier]

Isometimes work on Senegal from Bing imagery,and I'll hopefully convince 
some Senegalese friends to help me with names and POI. I took a look at 
the competition's progress and I have been very impressed : whereas 
Openstreetmap could formerly claim better coverage in Africa, it is now 
lagging in volume behind Google - take a look at 
http://goo.gl/maps/mH3pK (equivalent area in OSM at 
http://osm.org/go/azSB9oX--). Google now features impressive mileage of 
dirt tracks and residential dirt streets in obscure backwaters.


Surely the Google survey cars are not roaming those places - or I would 
be astonished. Does anyone knows how they do it ?A couple of years ago, 
I had posted my suspicions about them using automated tracing techniques 
in general and street grid detection in particular: 
http://lists.openstreetmap.org/pipermail/talk/2010-January/046539.html - 
but since then it seems that their techniques have improved a lot. Does 
anyone have information about the technology they use and how it could 
benefit OSM ? Maybe they just have an army of tracers, but automation 
seems more like how Google solves problems.


Last time played with it, the results of the Bing road detect API did 
not look satisfactory to me- but there may have been progress since 
those early days. But wouldn't road detection perform better using 
imagery in different bands -multispectral or even hyperspectral imagery 
? The Bing satellite imagery render uses false color images fit for 
pleasant human use- but surely the rawcaptured data is richer. Are there 
any remote sensing specialist here to enlighten about that ?


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Re: [OSM-talk] Obscure African dirt tracks in Google Maps - how does Google records them ? Automated tracing ?

[Mike N]

On 10/16/2012 7:34 AM, Jean-Marc Liotier wrote:

Maybe they just have an army of tracers, but automation seems more like
how Google solves problems.


 Is there any Smartphone coverage for those areas?  Google can track 
via their Smartphone apps.  By generating tracks from the owner's 
movements, a road can be inferred.   A consistent set of movements on a 
track at 20-40 kph would indicate a dirt road.



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Re: [OSM-talk] Obscure African dirt tracks in Google Maps - how does Google records them ? Automated tracing ?

[Janko Mihelić]

2012/10/16 Mike N 

>
>  Is there any Smartphone coverage for those areas?  Google can track via
> their Smartphone apps.  By generating tracks from the owner's movements, a
> road can be inferred.   A consistent set of movements on a track at 20-40
> kph would indicate a dirt road.
>
> I don't think so. Road grids look to clean for GPS. If you enter Map
Maker, you see it's drawn by a user Brigitte
but when I
search through her edits, I only find roads in USA. I think this is bought
data from a commercial mapping company.

Look at this example: http://goo.gl/maps/44dPQ

Nobody would draw a road through that. That was probably drawn before that
garden was built.

Janko
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Re: [OSM-talk] Obscure African dirt tracks in Google Maps - how does Google records them ? Automated tracing ?

[Iván Sánchez Ortega]

On Martes, 16 de octubre de 2012 13:34:46 Jean-Marc Liotier escribió:
> [...] take a look at http://goo.gl/maps/mH3pK 
> 
> Surely the Google survey cars are not roaming those places - or I would
> be astonished. Does anyone knows how they do it?

They seem to be using MapMaker for that area. You know, a volunteer-driven 
crowdsourced effort like OSM, but with Google reaping all the benefits and not 
really sharing the data back.

(Now is when somebody starts the licensing flamewar and all that)


Cheers,
-- 
Iván Sánchez Ortega  

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Re: [OSM-talk] Obscure African dirt tracks in Google Maps - how does Google records them ? Automated tracing ?

[Willi]

Well, I don't care if Google is obtaining these roads manually or
automatically. The result is lousy in both cases.

Have a look what a single local mapper can achieve and compare it to Google
http://tools.geofabrik.de/mc/?mt0=googlemap&mt1=mapnik&lon=102.67883&lat=16.
62325&zoom=14

And the map is also available bilingual
http://thaimap.osm-tools.org/?zoom=14&lat=16.62325&lon=102.67883&layers=B00 


On Tuesday, October 16, 2012 6:35 PM Jean-Marc Liotier
[mailto:j...@liotier.org] wrote:

I sometimes work on Senegal from Bing imagery, and I'll hopefully convince
some Senegalese friends to help me with names and POI. I took a look at the
competition's progress and I have been very impressed : whereas
Openstreetmap could formerly claim better coverage in Africa, it is now
lagging in volume behind Google - take a look at http://goo.gl/maps/mH3pK
(equivalent area in OSM at http://osm.org/go/azSB9oX--). Google now features
impressive mileage of dirt tracks and residential dirt streets in obscure
backwaters.



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Re: [OSM-talk] Activity Stream (a.k.a. "social" OSM) - demo instance

[Alex Barth]

Very interesting.

Activities seems to be going for replacing the history tab - am I seeing this 
right? I was expecting activity streams an expansion of the 'your friends' feed 
on my user profile. I. e. while on the history tab I get a complete changeset 
listing, on Activities I see summaries of people or places I'm interested in 
(how the latter would work is not fleshed out at all atm in OSM). I'd like to 
understand better where you see activity streams falling between functionality 
we now accomodate under the History tab and the friend feed.

Alex

On Oct 15, 2012, at 11:11 AM, Paweł Paprota  wrote:

> Hi all,
> 
> I've been working and working on this stuff or a few weeks now, I guess
> now is as good time as any to show a pre-pre-alpha version :-)
> 
> So what I have for you today is a demo instance [1] of the Rails Port
> that is integrated with Activity Server by means of the new Activity tab
> - this tab shows activity for selected (displayed on the screen)
> bounding box.
> 
> For now it looks similar to the History tab but it is fully powered by
> the Activity Server which means that in the (near) future there will be
> more information there than "just" changeset activities - I hope to
> integrate diary entries, "new mappers in your area", events, OSM Tasking
> Manager, help.osm.org and ponies.
> 
> Changeset descriptions are of course powered by an integrated instance
> of the great Changemonger project courtesy of emacsen.
> 
> There is also an early version of user page activity stream, e.g. [2].
> 
> Couple of notes:
> 
> * Yes, some (most) of the activity stream functionality is just for show
> (comments, zoom, reloading) but could be relatively easily implemented -
> I would love to hear people's opinions.
> * Apidb contains only data for Poland so you probably won't find your
> user in this instance.
> * Activities are being currently generated based on an Europe database
> and the replication is catching up (now it's at the end of September) so
> new activities pop up constantly as replication progresses.
> 
> Let me know what you think about functionality and otherwise.
> 
> [1] http://suncobalt.dyndns.org:8081/
> [2] http://suncobalt.dyndns.org:8081/user/SegMar
> 
> If you want to know more about this effort, see:
> 
> https://github.com/ppawel/osm-activity-server
> https://github.com/ppawel/osm-activity-publishers
> https://github.com/ppawel/openstreetmap-website/tree/social-osm
> 
> Paweł
> 
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Alex Barth
http://twitter.com/lxbarth
tel (+1) 202 250 3633





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Re: [OSM-talk] Activity Stream (a.k.a. "social" OSM) - demo instance

[Paweł Paprota]

On 10/16/2012 03:44 PM, Alex Barth wrote:

Very interesting.

Activities seems to be going for replacing the history tab - am I seeing this 
right? I was expecting activity streams an expansion of the 'your friends' feed 
on my user profile. I. e. while on the history tab I get a complete changeset 
listing, on Activities I see summaries of people or places I'm interested in 
(how the latter would work is not fleshed out at all atm in OSM). I'd like to 
understand better where you see activity streams falling between functionality 
we now accomodate under the History tab and the friend feed.


I added the Activity tab simply on a whim :-) Activity Server as it is 
can serve an activity stream in different formats for different scopes, 
i.e.:


1. For a given bounding box (Activity tab)
2. For a given activity actor (author of the activity)
3. For a given activity recipient ("my own activity stream" as I call 
it) - not yet fully implemented


I will be focusing more on (2) and (3) now that the demo instance is 
more or less up and running. The idea is to provide a personal "wall" / 
activity stream for each user and also a "third party view" activity 
stream - when looking at someone's user page there are currently 
activities of that person listed.


Another thing is what you mention as "places I'm interested in" - there 
are some tickets for that in Trac and I think this definitely needs to 
be built. Activity Server side of things is ready - "place I'm 
interested in" is just a bounding box after all so it's not a problem to 
retrieve an activity stream for such places, potentially even for many 
places at once and get one unified view - a lot of possibilities now 
that the backend is in place.


As for the History tab - we discussed this briefly yesterday on the EWG 
meeting as there is a Top Ten Task for implementing an "OWL-powered 
history/activity tab". As I see it, History could just be a more 
"advanced" view of the Activity - showing changesets with all the gory 
details such as links to OsmChange XML etc. I don't think those two 
thinks conflict with each other - it's only a matter of putting it all 
together and avoiding UI clutter.


Paweł

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[OSM-talk] Conferences

[Ilya Zverev]

Hi! First of all, I'd like to ask those who gave talks at SotM US 2012 
to publish their slides and notes and link them from the wiki page:


http://wiki.openstreetmap.org/wiki/State_Of_The_Map_U.S._2012/Schedule

Also, a small announcement. In mid-November we are organizing the first 
Russian conference on open GIS and open geodata: http://gisconf.ru/en/
There will be a separate track just for OpenStreetMap talks. The 
official language for this conference is Russian, but I doubt there will 
be anyone who doesn't understand English, so if you plan to visit Russia 
next month -- we'd be glad to see you. Of course, we can provide 
invitations and whatever is needed for getting a visa. If you want to 
give a talk -- which would be great -- call for papers ends in two 
weeks.
I'm 1) sorry for delaying this announcement; 2) ready to answer any 
questions :)



IZ

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