Blogs.OpenStreetMap.org

September 16, 2014

"OpenStreetMap.org User's Diaries"

Udacity course

Знаете ли вы, что... в курсе по MongoDb на Udacity используют OSM в качестве учебного проекта, и даже предлагают его улучшать

https://www.udacity.com/course/ud032

"Use important skills from data munging to improve OpenStreetMaps data for a part of the world that you care about and give back to the community."

by ajvol at September 16, 2014 07:05 AM

September 15, 2014

"OpenStreetMap.org User's Diaries"

How to quickly find opening hours on websites

As I often added opening_hours and sometimes had to search a bit on the websites. I thought why not letting Google do the searching for me ;)

Here is what I came up with. I am using this Google query:

"öffnungszeiten" OR "opening hours" site:$website

and saved the query as bookmark and added a keyword to it in Firefox.

Now if I am at a website like http://example.com/ and I can not find the opening hours right away I just select the location bar with Ctrl-L, hit the right arrow key, add my keyword ("go " for google opening hours) and hit enter …

by ypid at September 15, 2014 10:43 PM

Ruas da cidade de Corupá / Brasil

Finalizado o lançamento de todas as Ruas que constam no mapa urbano da cidade de Corupá / SC / Brasil. Os dados foram obtidos do mapa fornecido pela Prefeitura e integram a Lei Complementar Municipal 027/2011 (Plano Diretor).

Embora muitas vias rurais estejam lançadas, ainda não foi possível concluir em virtude da falta de informação. Também, faltam lançar muitos pontos de interesse, áreas verdes, cursos de agua,...

Mas, agora a cidade é roteável a partir de qq aplicativo.

by tomio at September 15, 2014 09:22 PM

Excited to Say, I am a Presidential Innovation Fellow

Today, it can finally be said, I am a Presidential Innovation Fellow at the State Department working on OpenStreetMap for Diplomacy.

This is very exciting, and honestly a bit boggling, how it's all turned out.

9 years ago, I was living in Brighton, UK, and travelled to Nottingham for several days of hacking with some very creative technical people. Invitation was from Ben Russell, "author" of the Headmap Manifesto (read this). Ben was a kind of hero to me, so that was great, and we spent a lot of time with Steve Coast, I built a slippy map for OpenStreetMap. We blew our own minds. Ben summed it up ... OpenStreetMap was going to totally succeed, or fail spectacularly.

The people I've met through pursuing this crazy dream of OpenStreetMap, the adventures, the real places opened up ... I won't even try to sum up how this project has taken over my own life, and changed the whole world for the better. Just this. When we first started talking about OpenStreetMap for Disasters, the response was sometimes polite, often condescending, and always bewildered. Today, Humanitarian OpenStreetMap Team (HOT) provides geographic data direct to the ebola response. We didn't ask permission, but believed, listened very carefully, kept working, and created something entirely new.

And this year, the White House and State Department created a Fellowship for OpenStreetMap. The Humanitarian Information Unit (HIU) has already moved mountains with Imagery to the Crowd, providing satellite imagery for digitization into OSM for humanitarian response. Makes whatever comes next seem easy! I'm really looking forward to working with HIU on MapGive, with eDiplomacy, and with others at State, USAID, and other agencies working with OSM. Our class of Round 3 fellows are an impressive bunch, working on hard problems. We've met many folks at our sister groups, 18F, US Digital Service, White House Office of Science and Technology. There is a vibrant spirit here, true believers in transformation of government, but rooted in smart, sobering, hard work and commitment.

The problems facing the world, humanitarian, climate, environmental, economic, are so extreme, everyone must find a substantial way to work together. No matter if you are a slum dweller in Chennai, or a bureaucrat at the World Bank, you contribute to the same database in OpenStreetMap, and that is powerful. In fact this is the role of HOT, to serve as the interface between the quite different worlds of the OpenStreetMap community and humanitarian response, and bring people together. And this is why I put myself forward to serve as a PIF. There are entirely new ways to cooperate and organize now open to us, and while the answers are certainly not obvious, I felt a calling to explore the landscape of potential.

The specifics of what I'll work on are still being created. But all our discussions so far focus on supporting growth of OSM, building as usual in the open, with reusable work for all. I think there will be three parts. First, contribute to curriculum and guides for teaching OSM, and organizing OSM projects and communities (the "softer" stuff, mostly in our collective heads). Second, build software tools to support community organizing, improve data quality, and flow of imagery. Finally, trial all of this somewhere out there, including connecting with other groups working for OSM in DC, through cross agency and organizational collaborations.

I needed to make a few changes to focus on the PIF. I'm stepping down from my role as President of the Board of HOT (but will remain a dedicated Board member). As well, have minimized other commitments at GroundTruth Initiative, Map Kibera, and Moabi. Yet, I'm not going far. I'm still editing right here, contributing on GitHub, publishing, probably more than ever. And especially listening. In a very fundamental way, I can't do this fellowship alone, and rely on the energy and ideas of our collective. I will need your help.

With nothing else to say at the moment … Maps!

Disclaimer: Views are my own!

by mikelmaron at September 15, 2014 09:07 PM

Paul Lake

Short drive from Kamloops and beautiful day to go there. Neat rocks on lake beach and slow part of trace shows brief hike done on a trail featuring numerous fallen tree obstacles.

by Arkady4669 at September 15, 2014 01:13 AM

September 14, 2014

Pascal Neis

Your Explored OSM World

Gregory Marler had the great idea to implement an “explored” map, based on a concept that some of you might know as “fog of war” from strategy video games. So here you go: I extended my OSM Heat Map with the “Explored Map Style”. It essentially reveals the contribution areas of an OpenStreetMap member in a “fog of war” style. The following figure shows Gregory’s amazing “explored” OSM map.

ExploredMapStyleToner

The Heat & Explored Maps are available for almost all OSM members who contributed at least several changesets here: http://yosmhm.neis-one.org (The new “Explored Map Style” can be selected in the layer panel (upper right corner). Additionally, I added the awesome looking and well known Watercolor and Toner map styles from Stamen design)

Thanks to maɪˈæmɪ Dennis

by Pascal Neis at September 14, 2014 05:10 PM

"OpenStreetMap.org User's Diaries"

Bad day

Cannot upload trace from mobile via WiFi and cannot find my track when browsing the mobile's filesystem via a USB connection. Grrr.

by gerdami at September 14, 2014 04:29 PM

OpenSnowMap.org

Ski lifts names

Ski lifts names are now displayed on OpenSnowMap.

This wasn't done until now because I was unable to place the name labels exactly at the same place than on OpenStreetMap background map. The rendering of ski lifts names (aerialways) being removed from osm-carto sytle, it's much easier !

They show up from zoom 15, refresh your cache.

Yves

by Yves at September 14, 2014 04:02 PM

"OpenStreetMap.org User's Diaries"

Map Somalia

Somalia is mapped scarcely. As map lover and GIS analyst i have vowed to contribute the openstreetmap in Somalia. We will start one day our Openstreetmap community in Somalia.

by shakasom at September 14, 2014 09:29 AM

September 13, 2014

"OpenStreetMap.org User's Diaries"

1000th Changeset

It took me some time, but I've hit the 1,000 changeset mark.

My 1000th changeset was done in the same area of my first edit, a bus station area in the small Southern California Inland town of Perris where a train route is being constructed.

I remember that one of my very first edits happen to be cutting 2nd Street at the tracks because the original TIGER data had that road going through to the other side.

Here are the fruits of my 1000th changeset:

Perris Station Transit Center

Happy mapping!

by The Temecula Mapper at September 13, 2014 07:57 PM

FPSO Brasil

I am onboard FPSO Brasil. What does this have to do with mapping? Actually not much, really. I have internet access, but various services is blocked, so I cannot do any mapping or chat with mappers, so I am kind of stuck here. But if we are going to be "mappy" about this, than actually I can turn this into something of a geospatial font. The project I am working on is to remove FPSO Brasil from its moorings (hopefully without dropping the mooring lines ontop of the wrack of P36. What do I gain in terms of mapping from this?

  • I will know the exact date (and time) when the FPSO is taken off its moorings. The node marking the position is in the database, and should than be removed.
  • I might get the exact co-ordinates of the P-36 wreck. I don't think this is in the database. It is still premature to say if I can import that position though, but since water depth on the location is 1260 meters, the wrack does not impose any form of hazards, nor works as any form of artificial reef or fish haven, except that it is a large obstacle for installing subsea infrastructure on the Roncador field.
  • Since this requires a few trips between my home place and Campos, I will be able to gather a few GPS tracks and validate a little road data integrity. On my way south yesterday I noticed lots of work ongoing on BR-101, mostly asphalt repairs, but there is a bridge repair where a secondary bridge have been installed, this might be early step of duplication of that stretch of road. I might get a few more hotels in and around Campos because of this (I will check if Terazzo was on the map when I upload the GPX track)
  • I still don't know how and where I will get back to dry land when the FPSO have been disconnected and is on its way, I might be among the people going off by helicopters, so I might end up in any one of several heliports serving the Campos Basin (Campos, Farol de São Tome, Macaé, Cabo Frio), or I might be basket-lifted to another vessel and brought to any port in the area (Rio de Janeiro, Macaé, Vitória), which might mean new interesting GPX tracks.

by Skippern at September 13, 2014 12:33 AM

September 12, 2014

"OpenStreetMap.org User's Diaries"

Wie geht es jetzt weiter?

kann mir das jemand sagen, denn ich möchte gerne die Wanderwege rund um Bad Kreuznach aufnehmen, so dass sie, ggf. auch über eine APP nachgewandert werden können. Zumal, seit Bad Kreuznach noch Bad Münster am Stein-Ebernburg als neuen Stadtteil dazu bekommen hat. Aus Bad Münster kenne ich viele Wanderwege, mit einer Gesamtlänge von über 150 km. Die würde ich gerne alle erfassen und publik machen.

by Poernhaat at September 12, 2014 03:36 PM

utak durva hibáinak kimutatása

Eredetileg szögletes (nem szép ívekkel megrajzolt) vasútvonalakat kerestem, helyette durva hibákba botlottam. Készítettem egy postgresql függvényt, ami megmutatja, mi a legnagyobb törésszög a vonalban (GPL):

    CREATE OR REPLACE FUNCTION largestangle (
        geom geometry
    )
    RETURNS float
    AS
    $$
    DECLARE
        num integer;
        azimuth float;
        previous float;
        max float;
        angle float;

    BEGIN
        num := ST_NumPoints(geom)-1;
        max = 0;
        previous = null;
        FOR i IN 1..num LOOP
            azimuth = ST_Azimuth(ST_PointN(geom, i), ST_PointN(geom, i+1))*180/PI();
            IF previous IS NOT NULL THEN
                angle = azimuth-previous;
                if (angle<0) THEN angle = angle + 360; END IF;
                if (angle>180) THEN angle = angle - 360; END IF;
                angle = ABS(angle);
                if (angle>max) THEN max = angle; END IF;
            END IF;
            previous = azimuth;
        END LOOP;
        RETURN max;
    END;
    $$
    LANGUAGE 'plpgsql';

Kikerestem Magyarország vasútvonalai közül azokat, amelyekben két egymást követő pont között 100 foknál nagyobb törés van:

    SELECT osm_id, railway, largestangle(way)
    FROM planet_osm_line
    WHERE railway IS NOT NULL
    AND largestangle(way)>100
    ORDER BY largestangle(way) DESC

Az eredmény lesújtó:

    67238470;"light_rail";180
    121097646;"tram";180
    123907293;"platform";179.955851775949
    211273169;"rail";179.292086339494
    40764520;"rail";179.192081204579
    221864293;"rail";179.017371190472
    87763263;"rail";178.891823334706
    87975409;"rail";178.328305034132
    294593714;"rail";177.532887205442
    249158915;"rail";176.432827720348
    261528683;"rail";176.093856853854
    266535726;"rail";175.735610193293
    228949256;"rail";175.069038113852
    231714208;"rail";174.456231436573
    254601660;"rail";174.429655532425
    151982042;"rail";174.073601056486
    83250577;"abandoned";173.916391809453
    58680396;"tram";172.847818564358
    231156588;"rail";172.232675767268
    230505264;"rail";172.010225172665
    264239018;"disused";171.013974128316
    96583460;"rail";170.95014069881
    169139414;"rail";170.646584743656
    178696845;"tram";169.978759451508
    151987089;"rail";169.850101980453
    169139416;"rail";169.252730579368
    154513149;"platform";168.644987907461
    169139418;"rail";166.855496170685
    300210242;"rail";166.492269214075
    231714246;"rail";165.88889681817
    25717783;"rail";164.191851861276
    242217332;"rail";161.720967385473
    169015068;"tram";157.185985623234
    96621059;"rail";156.689293148707
    165028710;"rail";154.941354138393
    121097675;"construction";151.529941313625
    156546547;"rail";151.08146686337
    48655425;"platform";130.166176320385
    229989396;"rail";117.725075097282
    48655422;"platform";115.538929552111
    54308577;"abandoned";111.828437618505
    103336934;"disused";106.292185094081
    25720396;"tram";103.772617080563
    235480246;"platform";101.745332022293
    216724982;"platform";100.876472649506
    48655420;"platform";100.638820505008
    230507188;"platform";100.13953405001

A 180 fokosak azonos töréspontba tértek vissza, a többi pedig általában lapos Z alakban kétszer visszafordult. A 178 feletti első nyolcat gyorsan javítottam, a többit meghagyom a lelkes közösségnek.

Az első oszlopban szereplő azonosítót könnyen be lehet másolni JOSM-be a Fájl / Objektumok letöltése (Ctrl+Shift+O) paranccsal, az objektum típusát elég az első alkalommal beállítani vonalra, megjegyzi. A vonalak kijelölve megjelennek az irány-nyilak, ezen lehet meglátni, hogy hol törik meg hegyes szögben.

Ha nekiállsz, dobj egy üzenetet, hogy ne ütközzünk össze.

by Kolesár at September 12, 2014 12:44 PM

Osmose&#39;s News since March

The biggest step in this period is the coverage of new countries:

  • Full Africa support
  • Europe: a number of new small countries: Azores, Albania, Bosnia and Herzegovina, Bulgaria, Croatia, Cyprus, Estonia, Hungary, Isle of Man, Kosovo, Latvia, Liechtenstein, Lithuania, Macedonia, Malta, Montenegro, Moldova, Romania, Serbia and Slovenia.
  • Europe: a new analyser server in the Netherlands, country divided in regions.
  • Southeast Asia is a new server in Germany covering Thailand, Brunei, Burma, Cambodia, Laos, Malaysia, Singapore and Vietnam.
  • Add countries in Asia: Sri Lanka, Syria, Tajikistan, Turkmenistan.
  • Add Central American countries: Belize, Cuba.

Countries that are not supported by new servers were supported on OpenStreetMap-France or Iceland ones. Now there is a Coverage Map on Osmose.

Meanwhile, new translations came Portuguese, Polish, Japanese and Hungarian.

On the back side engine, fewer bugs and more unit testing and improving mechanisms for testing. Also, added support for a variable number of objects involved in an error.

For data integration proposal analysers, redesign the code format to go to something more descriptive and structured, so less code, more configuration and convention. Improved data integration proposal analysers to add a "dynamic" support. It means manage a large number of different tags for the same OpenData set (typical French sports fields that have 180 different combinations of tags for the same dataset).

On the side of analysers them self, not so many news. This period was a time of maturation, improve the quality and "conquer the world".

  • 2060/6 Improved Analysis "number twice in the street"
  • 2060/10 addr: housenumber does not start with a number
  • 2060/11 Multiple names for the same reference FANTOIR (France only)
  • 2060/12 Tag "addr:city" not consistent with the city
  • 2060/13 the object does not match the type FANTOIR (France only)
  • 7090/3 Isolated barrier
  • 8160/1 Unintegrated Paris Autolib ' (Paris only)
  • 8170 Dynamic analyser for sports pitch integration (France only)
  • 8190 Unintegrated French military Police (France only)
  • 8040/71 Bus stop in Wallonia (Wallonia, Belgium only)
  • 1150 Big optimization on "intersection between surfaces", save computation time on large countries.
  • suppression of import of OpenStreetBugs

On the web interface, adding export to RSS, GPX and remote "everything to JOSM."

Finally, a bridge between Osmose and Maproulette was established. It allows send certain types of errors on the addictive interface of Maproulette. For now, a small number of test categories are sent. These are the categories that begin with "[world]" and "[France]." Maproulette

For the near future we have plan to support all America except the two biggest countries. On large countries (in data) we still need your help to find new servers for Osmose backend analyser.

Osmose web site

by frodrigo at September 12, 2014 08:29 AM

September 11, 2014

"OpenStreetMap.org User's Diaries"

Don and Donna Williams 9416 75th St Wapello

The streets are incorrectly listed on this site. I sent a message to get it corrected 09/11/2014. County Road X61 is not listed correctly and there are others in the area that need fixed too. KH

by Khoeg at September 11, 2014 09:03 PM

Détérioration très importante de la carte de l&#39;île de la Réunion.

J'ai constaté, il y a peu une détérioration des tag "highways" sur la carte de l'île de la Réunion. J'ai averti le contributeur qui n'a pas répondu. J'ai cru au départ que ce n'était que quelques erreurs, et après un lapse de temps raisonnable pour que le contributeur y remédie, j'ai fait les corrections.

Par sécurité, j'ai fait un petit contrôle des autres éditions du mappeurs et de la carte en général. Bien ou mal m'en a pris, puisque j'ai constaté que les détériorations étaient bien plus vaste que je n'aurais jamais imaginé.

Plus d'une centaine de tags de highways ont été changé sans aucune rigueur ni valeur de l'usage ou du traffic des chaussées. Cela va du tronçon en plein mlilieu d'une voie à la route entière, le chantier de correctif est si titanesque que, les bras m'en tombent.

Je fais appel au contributeurs localisé sur la Réunion ou d'ailleurs, simplement désireux de se rendre utiles, 80% de l'édition originale avait été faite d'après imagerie aérienne, le reste par l'usage et le renseignement, ainsi que le cadastre. Je ne vis plus à la Réunion depuis Décembre 2013, je n'ai plsu les moyens de contrôler en réel et encore moins le courage de reprendre tout de zéro (près d'un an de travail à l'origine).

Contributeurs de la Réunion, c'est un appel d'urgence, je vous demande votre aide pour réparer les dégâts. Et, s'il vous plait, faites le avec rigueur (on ne qulaifier pas en "trunk" voie expresse, un morceau de route primaire ou secondaire en, plein milieu d'un village), car parti comme c'est, dans moins d'un an la cartes de la Réunion ne ressemblera plus à rien.

Librement, Mk67

by mk67 at September 11, 2014 05:54 PM

ШТОСМ

Весь покрытый зеленью

Что это за точка в Атлантическом океане? Определённо, остров. Одно из значений слова null — «несуществующий», и оно верно: на самом деле, там пусто, несмотря на то, что в OpenStreetMap там каждый день разные вещи. Точка (0; 0) знакома каждому картографу: она часто притягивает данные, которые должны быть в другом месте. «Null Island» — это также самоназвание группы весёлых ГИС-разработчиков в Штатах (преимущественно из Stamen), которые вчера собрались на вечеринке в рамках FOSS4G. Конечно, у них есть футболки, подробная карта и сайт острова. Многие догадались, что поскольку в разных системах координат центр различен, остров на самом деле архипелаг, и Стивен Мэзер построил его схему.

Кстати, компания Stamen снова получила грант фонда Knight Foundation (того, что спонсировал редактор iD) на новые серверы, расширение слоя Terrain на весь мир и улучшение повсеместно используемого слоя Toner. Последний они в честь события опубликовали на GitHub — теперь его, наконец, можно самостоятельно починить для использования в обходных листах.

September 11, 2014 06:54 AM

"OpenStreetMap.org User's Diaries"

Help needed with reverting changeset

Hi, I probably did a dumb mistake.

I had noticed that a bike-road was closed due to construction, with a small chance of being permanent. This has messed up navigation in the area, suggesting to drive through construction fences etc :)

As a "solution" I have removed the bit of road that is no longer accessible. :(

Since then I have read up a bit and understood that may have been wrong. Worse, this may have affected some longer-distance roads (Sverigeleden, a bike trail through all of Sweden).

How do I revert a changeset? http://www.openstreetmap.org/changeset/25360556

I did the edit in the standard browser editor, without selecting JOSM or potlatch or anything.

Can I please have help to resolve this? Either you revert it for me, or (better) tell me how to do it myself?

Sorry if I messed up as a newbie...

by TimConze at September 11, 2014 06:06 AM

Namensänderung

Ich war vorher unter "freebyte" aktiv bis irgendein Fehler meinen Account kaputt gemacht hat.

by bernd_hohmann at September 11, 2014 12:05 AM

September 10, 2014

Muki Haklay

NewScientist1979-Details

At the end of June, I noticed a tweet about new words in Oxford English Dictionary (OED):

I like dictionary definitions, as they help to clarify things, and OED is famous for the careful editing and finding how a term is used before adding it. Being in the OED is significant for Citizen Science, as it is a recognised “proper” term. At the same time, the way that OED define citizen science, and their careful work on finding out when it was first used can help in noticing some aspects. This is how.

Here is the definition, in all its glory:

citizen science n. scientific work undertaken by members of the general public, often in collaboration with or under the direction of professional scientists and scientific institutions.

1989   Technol. Rev. Jan. 12/4   Audubon involves 225 society members from all 50 states in a ‘citizen science’ program… Volunteers collect rain samples, test their acidity levels, and report the results to Audubon headquarters.
2002   M. B. Mulder & P. Coppolillo Conservation xi. 295/1   Citizen science has the potential to strengthen conservation practice in the developing world.
2012   M. Nielsen Reinventing Discov. vii. 151   Citizen science can be a powerful way both to collect and also to analyze enormous data sets.

citizen scientist n.  (a) a scientist whose work is characterized by a sense of responsibility to serve the best interests of the wider community (now rare);  (b) a member of the general public who engages in scientific work, often in collaboration with or under the direction of professional scientists and scientific institutions; an amateur scientist.

1912   Manch. Guardian 11 Sept. 4/2   Trafford, thus serenely established, should..have returned to his researches with a new confidence and content and become a noble citizen-scientist.
1936   Headmaster Speaks 65   Could not Science..turn out a race of citizen scientists who do not make an absolute religion of the acquisition of new scientific knowledge however useless or harmful it may be?
1949   Collier’s 16 July 74/3   By 1930 most citizen-scientists had perfected a technique which brought gin to its peak of flavor and high-octane potency five minutes after the ingredients had been well mixed.
1979   New Scientist 11 Oct. 105/2   The ‘citizen-scientist’, the amateur investigator who in the past contributed substantially to the development of science through part-time dabbling.
2013   G. R. Hubbell Sci. Astrophotogr. xiii. 233   A citizen scientist in the astronomical field has a unique opportunity because astronomy is a wholly observational science.

Dictionaries are more interesting than they might seem. Here are 3 observations on this new definition:

First, the core definition of ‘citizen science’ is interestingly inclusive, so a community based air quality monitoring to volunteers bird surveys and running climate model on your computer at home are all included. This makes the definition useful across projects and types of activities.

Second, the ‘citizen scientist’ is capturing two meanings. The first meaning is noteworthy, as it is the one falls well within Alan Irwin’s way of describing citizen science, or in Jack Stilgoe’s pamphlet that describe citizen scientists. Notice that this meaning is not the common one to describe who is a citizen scientists, but arguably, scientists that are active in citizen science usually become such citizen scientists (sorry for the headache!).

Third, it’s always fun to track down the citations that OED use, as they are trying to find the first use of phrase. So let’s look at the late 20th century citations for ‘citizen science’ and ‘citizen scientist’ (the one from the early 20th century are less representative of current science in my view).

The first use of ‘citizen science’ in the meaning that we’re now using is traced to an article in MIT Technology Review from January 1989. The article ‘Lab for the Environment’ tell the story of community based laboratories to explore environmental hazards, laboratory work by Greenpeace, and Audubon recruitment of volunteers in a ‘citizen science’ programme. The part that describes citizen science is provided below (click here to get to the magazine itself). Therefore, groups such as the Public Laboratory for Open Technology and Science are linked directly to this use of citizen science. 

MIT Technology Review 1989

Just as interesting is the use of ‘citizen scientist’. It was used 10 years earlier, in an article in New Scientist that discussed enthusiasts who are researching Unidentified Flying Objects (UFO) and identified ‘ufology’ as a field of study for these people. While the article is clearly mocking the ufologists as unscientific, it does mention, more or less in passing, the place of citizen-scientists, which is “all but eliminated” by the late 1970s (click here to see the original magazine). This resonate with many of the narrative about how citizen science disappeared in the 20th century and is reappearing now. 

NewScientist1979-Details

 

If you would like to use these original references to citizen science and citizen scientists, here the proper reference (I’ll surely look out for an opportunity to do so!)

Kerson, R., 1989, Lab for the Environment, MIT Technology Review, 92(1), 11-12

Oberg, J., 1979, The Failure of the ‘Science’ of Ufology, New Scientist, 84(1176), 102-105

 


 

Thanks to Rick Bonney who asked some questions about the definition that led to this post!


by Muki Haklay at September 10, 2014 10:00 PM

ШТОСМ

Он снова здесь

Помните, когда-то в древности была такая библиотека — OpenLayers? В своё время технологический прорыв, она выросла в большого некрасивого монстра, которым пользовались, скорее, от отсутствия альтернатив и от действительно хорошо оттестированного движка, работавшего даже на безнадёжно устаревших браузерах, вроде Opera. Последнее немного затормозило распространение Leaflet (и я был в числе недовольных, когда он захватил osm.org), но ненадолго: теперь библиотекой OpenLayers пользуются либо бородатые ГИС-программисты, либо новички, по несчастью наткнувшиеся на слишком старый учебник.

Две недели назад многолетняя работа по осовремениванию движка завершилась выпуском версии 3.0.0. На сайте, к сожалению, нет учебника, кроме несуразного quick start (прошлая версия тоже страдала отсутствием вменяемой документации), потому создаётся впечатление, что получилось стильно, кратко, молодёжно: даже скрипт библиотеки теперь называется ol.js. В анонсах упор делают на WebGL и трёхмерные карты, хотя в примерах их непросто найти. Если погрузиться в справочник, всплывают страшные конструкции, вроде ol.control.defaults().extend({...}) для банального добавления элементов управления, и понимаешь, что проще не стало.

Пока писал эту заметку, делал и расширял небольшой пример использования библиотеки, значительно проще официального. Вот что я вынес из этих шести строчек и пары десятков страниц документации:

  • чтобы написать шесть строчек кода, нужно прочитать пару десятков страниц документации по API: примеры и учебник только запутают;
  • А-А-А-А! нажмите Alt+Shift и подвигайте карту! Включено по умолчанию!
  • надеялся, что за это время в команде появился дизайнер, но нет: все элементы интерфейса так же неприглядны;
  • по умолчанию прячут копирайты под значок — что в своё время не сошло с рук MapBox-у;
  • снова чехарда с проекциями, но полегче: не нужно создавать кучу вспомогательных классов;
  • потому что многие константы и объекты можно заменить простыми строками;
  • не lat-lon, а lon-lat, как у взрослых;
  • снова тысяча мелочей из коробки, вроде библиотеки слоёв, экспорта в PNG, разбора OSM XML, кластеринга и heatmap-ов;
  • несмотря на обещанный «high-quality documentation», хорошо выглядит только справочник по API, да и то — до первого вопроса про типы параметров функций;
  • дробный масштаб — не для солидных людей, судя по отсутствию простого способа его включить;
  • надеялся на функциональный аналог Leaflet.draw, но его нет;
  • боюсь представить, как к библиотеке пишутся плагины;
  • интерактивная карта на главной openlayers.org — самая узкая, что я когда-либо видел.

В целом, здорово, что OpenLayers жив. Он — необходимый противовес Leaflet, почти полная противоположность: подтормаживает, сложный и насыщенный API (хотя файл js больше всего в три раза), разработчиков команда, версия больше нуля. Поначалу эта заметка должна была быть негативной, но когда разбираешься, как и зачем сделаны некоторые непривычные вещи в библиотеке, понимаешь объём проделанной работы, её суть и адресатов. Пока не стоит бежать переписывать на неё все свои проекты, но после пары минорных релизов и выпуска документации OpenLayers, без сомнения, пошатнёт позиции Leaflet как «монополиста» в пользовательской картографии.

September 10, 2014 09:44 PM

"OpenStreetMap.org User's Diaries"

Kilometerweise mappen

Der Sport funktioniert noch immer: GPS Gerät an, erste Strasse die das Garmin mit OSM Gerät nicht kennt reinfahren - und weiter immer weiter mit taggen der Wegbeschaffenheit, bis man wieder auf was trifft, was die OSM Karte kennt :). Diesesmal mit dem Roller. Immerhin sinds jetzt nicht mehr mehr als hundert Kilometer, denn es tut sich ganz schön was. Erstaunt als ich auf den Kilometerzähler guckte war ich aber trotzdem: 70 km kleine Waldstrassen sind locker zusammengekommen. Wäre echt mal schön, wenn man ein wenig Gemeinschaft erleben würde und verfolgen könnte, dass sich die Daten langsam schliessen. Soweit liebe Grüsse von der "gemappten Insel" runt Alhult.

by Skinfaxi at September 10, 2014 04:00 PM

Erste Erfahrungen

Erster Versuch: Mit dem GPS-Gerät einen Weg im Hinterhof ablaufen. Die Genauigkeit ist so schlecht das es einen graußt (+-10 m geschätzt) Zweiter Versuch: Mit Zettel und Stift herumlaufen und Skizzen von den Häusern, Straßen und Hausnummern machen. Das war super lustig und hat dann auch gut funktioniert, weil man die Skizzen danach gut mit Bing Maps abgleichen konnte.

Juhu!

by Kaligule at September 10, 2014 12:12 PM

2014-09-10 Skattkärr

Flyttat sidospår på Värmlandsbanan till söder om huvudspåret, samt lagt till nytt läge för växel. Korrigerat felaktigheter i gatunätet. Lagt till verksamheter samt korrigerat läge på punktobjekt

by Akar728 at September 10, 2014 10:58 AM

&quot;Wisepilot map reporter&quot; müllt OSM mit sinnlosen Notes zu

Mir fiel heute eine ganz schräge Ansammlung von Notes wie dieser hier auf, die offensichtlich mit einer mobilen App generiert wurden.

  • Gepostet werden die von nicht angemeldeten Usern, daher ist keine Kontaktaufnahme möglich, um weitere Informationen zu erhalten.

  • Die Notes sind dermassen ungenau platziert, der App-Benutzer kann diese also anscheinend nicht an die richtige Stelle auf der OSM-Karte verschieben.

  • Vermutlich werden vorgefertigte Phrasen wie "Links abbiegen nicht möglich" angeboten, die aber dummerweise keinen Hinweis darauf enthalten, welche Fahrtrichtung (bzw. welches Verkehrsmittel!) betroffen ist.

  • Scheinbar bietet diese Anwendung auch nur eine stark eingeschränkte Anzahl an Zeichen (oder wie auch schon gesehen: Sonderzeichen/Umlaute beenden gerne mal die Anzeige von nachfolgendem Text) in dem für die weitere Bearbeitung wichtigen Beschreibungsfeld.

Vielen Dank an "Appello Systems" für so eine "gut gemachte" Software!

by zarl at September 10, 2014 10:36 AM

&quot;Wisepilot map reporter&quot; is absolutely useless

I just stumbled over a pile of absolutely useless notes like this one: they are sent by anonymous users so it's not possible to ask them for further information. The accuracy of the note placement is very low, it seems the user isn't able to push the note to the right spot on the actual osm map. Also they seem to provide ready-to-go phrases like "Links abbiegen nicht möglich" ("turning left isn't possible") without a hint about the direction. I also suspect that tool only allows for a radically reduced number of characters in the description of the note.

Thanks "Appello Systems" for giving us such a "great" tool!

by zarl at September 10, 2014 10:18 AM

autisti

hyvä päiväkirja tajusin juuri tänään että olen mailma suuurin autisti #yolo #swag #worth #i love life #autisti

by Multtari at September 10, 2014 08:53 AM

Appunti sulla situazione attuale a Gela Nord-Ovest

Ho notato che molte strade in questa zona sono segnate ovunque (concorrenza come Google Maps e Street View inclusa) come strade sterrate quando in realtà sono state di recente asfaltate e sono così diventate di grande importanza per alcuni spostamenti (ad esempio la strada che unisce Cittadella a Modernopoli e anche alcune vecchie "trazzere" nei dintorni; qualche stradina poi non c'è proprio). Per via dell'inadeguatezza si tutti i dati cartografici esistenti, inclusi quelli comunali e quelli coperti da copyright, i tipi di strada andranno probabilmente riassegnati a mano a fronte di qualche giretto in zona.

Al contrario alcune strade sono sulla carta comode strade asfaltate che consentono di evitare molti giri (ho esperito Via Giuseppe Piermarini, e oggi la parte alta di via Sicani; la prima ricoperta di ghiaia e rottami di vetro ma ancora percorribile anche in bici, la seconda coperta di veri e propri cumuli di macerie e rifiuti edili evidentemente lasciati lì da poco che la rendono sdegna di un percorso da motocross). Anche per queste strade non esiste nulla di più aggiornato e bisognerà fare a mano, aggiungendo poi le nuove strade secondarie ancora assenti ed eventualmente segnalando le nuove /track/.

by sEdivad at September 10, 2014 03:20 AM

1.6 Gigapixel image - OSM Point of Interest density map of Europe

After doing the Romanian OSM node density map, i wanted to do something more globally

The map was created by exporting using Qgis Print Composer in 4 different 24806x17716px , because of the limitations of QGIS that does not allow the export of bigger files yet.

The date was obtained using overpass-api, but for simplicity, if you want to do something similar, use the europe planet extract.

There where over 7 million shop,amenity, tourism and leisure POI in Europe that where combined in a single file using the Qgis Plugin > Vector > Data Management Tools > Merge ShapeFiles to one

Using Qgis plugin mmqgis i created a network of around 800.000 hexagons, and using the Qgis plugin "count in polygon" i was able to figure it how many POI are in each hexagon. To get to a more correct answer, i calculated the area for each of the 800.000 hexagons, that is ranging from about 18 square kilometers in south of Sweden to 28 sq km in Madrid, Spain and did a POI/area to get a more exact answer, POI per sq km

TOP 200 POI by number or POI

top200 And the download link

OpenStreetMap POI density per km2

density openstreetmap poi Download link

1.61 GigaPixel OpenStreetMap POI Map of Europe gigapixel openstreetmap POI

Explore the 1.61 gigapixel on photosynth :

Just how much of Europe have at least 1 POI per km2 ?

  1. 361701 km2, similar with the area or Germany, have a density of just 1 POI per km2
  2. 169428 km2, similar with the area or Greece, have a density 2 POI per km2
  3. 97592 km2, similar with the area or Hungary, have a density 3 POI per km2
  4. 68037 km2, similar with the area or Lithuania, have a density 4 POI per km2
  5. 48142 km2, similar with the area or Slovakia, have a density 5 POI per km2
  6. 35867 km2, similar with the area or Moldova, have a density 6 POI per km2

The total sum is 983412 km2, to put this in perspective, this means the area of Ukraine and Germany together. The rest of Europe has a density that is less then 1 POI per km2

data stats openstreetmap europe

What i learned.

  • Trying to so something as big as this is impossible in QGIS < 2.4
  • Except UK, Germany and neighboring county's, the rest of europe has good POI coverage only in big and medium cities
  • There is still no simple way to extract all the POI of a country or a continent ( amenity, shop, leisure, tourism )
  • There is no possible way to export this map in a interactive way, at least from the Qgis Plugins
    It would be possbile only country by country, if somebody with coding skills could make qgis2leaf work with rule-based colors

by baditaflorin at September 10, 2014 02:41 AM

September 09, 2014

"OpenStreetMap.org User's Diaries"

Roundabouts

I have recently begun using the MapFactor Navigator Free GPS app on my android tablet. This app uses the OSM program. However, when the GPS describes trip details, it uses a very confusing method of instructions through roundabouts. E.g. to access the Pacific Highway, northbound from the Graham Drive north roundabout at Sandy Beach, Australia, the GPS states: "Turn right onto Pacific Highway", then "Turn left onto Pacific Highway". The standard instruction would be "At the roundabout, take the second exit onto Pacific Highway". (Note that traffic flows clockwise on roundabouts in Australia). Does this terminology originate from the OSM program? I don't see any way to define a road as a "roundabout" in the editing section. How can the roundabout instructions be improved?

by frankibus at September 09, 2014 11:35 PM

OSMBlog (German)

Wochennotiz Nr. 216

02.09. – 08.09.2014

Berlin_OSM_2007_2014Berlin – 6,011 contributors – 1,447,791 features – June 2007 to August 2014 [1]

Talk, Forum, Wiki & Blog

Open Data & ODbL

openstreetmap.dach

  • Als Ausgleich für eine nicht attributierte Verwendung von OSM in Einkaufaktuell, wird in der Karlsruher Ausgabe der Postwurfsendung Einkaufaktuell eine OSM-Anzeige erscheinen. Bis zum 17. September können daher noch Entwürfe eingereicht werden.

Wochenaufgabe

  • Fehlende Rettungspunkte ergänzen. Die neue Wochenaufgabe KW37/38 bis zum 21.09.2014 im Blog, im Forum und auf Twitter.
  • Die Wochenaufgabe bekommt eine eigene Dynamik. Das Wochennotizteam freut sich über die Initiative und stellt gerne alle bisher nur intern zusammengetragenen Daten zur Verfügung, damit sie auch ins Wiki übertragen werden können. Wenn das jemand übernehmen möchte – Email genügt. ;-)

Humanitarian OpenStreetMap Team

Konferenzen

  • Die MaptimeBER findet schon am 16. September statt. (nicht wie wir in WN214 geschrieben am 26. September)
  • Die Einreichungsfrist für Vorträge für die State of the Map 2014 in Buenos Aires, Argentinien, wurde bis zum 14. September verlängert.
  • User robert meint, das Logo der SotM in Argentinien solle korrigiert werden.
  • Vom 07. bis 09. Oktober findet auf dem Messegelände in Berlin die Geodäsie- und Geoinformations-Fachmesse Intergeo statt. OSM ist zum siebten Mal dort vertreten. Es werden noch weitere Standbetreuer gesucht.
  • Lars Lingner lädt zum FOSSGIS-geförderten OSM-Hackweekend am 11. und 12. Oktober im Büro 2.0 in Berlin ein.

Karten

#switch2osm

  • Der Fahrradcomputerhersteller Sigma Sport zeigt in einem Video von der Fahrradmesse Eurobike in Friedrichshafen, wie er OSM verwendet.

Kennst du schon …

Programmierung

und sonst

Wochenvorschau

Termine vom 11.09.2014 bis 18.09.2014

Ort Name Datum
Berlin-Brandenburg Stammtisch 11.09.2014
Braunschweig Stammtisch 13.09.2014
Dortmund Stammtisch 14.09.2014
Bonn Stammtisch 16.09.2014
Hannover Stammtisch 16.09.2014
Berlin Indoormappingparty 16.09.2014
München Stammtisch 16.09.2014
Lüneburg Stammtisch 16.09.2014
Karlsruhe Stammtisch 17.09.2014

Hinweis:
Wer seinen Termin hier in der Liste lesen möchte, trage ihn in den Kalender ein. Nur Termine, die dort stehen, werden in die Wochennotiz übernommen.

In eigener Sache

  • Die Wochennotiz hat ständig mehrere Stellen zu vergeben – Themensammler, Meldungschreiber, … Bewerbungen per Mail an uns oder mündlich per IRC (Webchat).

flattr this!

by Wochennotizteam at September 09, 2014 07:00 PM

Chris Hill

Lock in

I've been adding lots of buildings in Hull. Tracing from imagery is a bit tedious, but I have got into a rhythm. Adding the house numbers I find easier with a printed map with the buildings already drawn then I can note significant points like house numbers near junctions, any extras (like 4a), any gaps in numbering and whether there is a 13 or not. I was working on Beverley Road. Wanted some shopping so I decided to go shopping there, so I could see the layout of the shops as well as any numbering. I also remembered a couple of developments that were worth looking at to see if they were accessible.

I went to The Jacobs Homes off Askew Avenue. The place was complete, smart
and easy to go round, number one complete. Then I went to The Sidings. This is still only partly complete, with two road names (neither called The Sidings of course, this was a railway goods yard many, many years ago). One small road joined these two named ones - I got its name from a house number with the street name under it. Number two complete. I then set off towards the junction between Beverley Road and Cottingham Road to look at the shops and buy a few things.

Before I got to the shops I saw a yellow board with a development name on it I didn't recognise, Scholars Gate, so I followed it. The development is far from complete but a substantial number of houses have been built and many look occupied. Once again no name board, but once again a house number had the road name on it so I could get the details. Number three complete.

When I got to Cottingham Road shops I took lots of photos of the shop fronts from across the street, got asked what I was doing and handed out a leaflet about OSM. When I'd done my shopping I set off for home.

I noticed another new development off Cottingham Road. When I had turned round and got back to it I realised it was gated and the gate was shut. The sign said Chancellor's Court (private road). As I sat in front of the gate I saw a sensor on a wall inside the gate and guessed that if I could get in, the sensor would open the gates to let me out. Just then a van pulled up near the gates at the otherside and they opened, so I drove in, hoping I was right. I drove down the road, turned at the end and set off out. The gates didn't open. I sat near them waiting for someone else to open the gates and a few seconds later a car pulled past me and the gates opened. I followed the car out and my lock in was over. Number four complete.

As I drove home I saw another yellow board for a development, this time in Cottingham at Cleminson Gardens. I had added bit of the development when it was first accessible. Now the whole road loop is accessible and most of the houses look complete and occupied. That completed number five.

by noreply@blogger.com (Chris Hill) at September 09, 2014 04:21 PM

"OpenStreetMap.org User's Diaries"

Can I produce a Hypsometric tints in OpenStreetMap?

Dear colleagues,

I am very new to the OpenStreetMap. Can you please let me know if it is possible in OpenStreetMap to generate a Hypsometric tints, e.g.: http://pl.wikipedia.org/wiki/Mapa_hipsometryczna? If yes I would be very grateful for any hint where to fina amanual?

Many thanks in advance!

Dawid

by dpyzik at September 09, 2014 10:45 AM