Archive for the ‘OpenStreetMap’ Category

Donnerstag, Juni 12th, 2014

On the SOTM-EU 2014 conference in Karlsruhe, Germany I presented the pgmapcss library, which I developed during the last year. Here are the slides:

pgmapcss – adv cartography for mapnik

MapCSS – ein neuer Standard für Kartographie

Freitag, Mai 9th, 2014

Heute habe ich wieder mal die Ehre einen Vortrag auf den Linuxwochen in Wien zu halten. Dieses mal möchte ich die Kartographie-Sprache „MapCSS“ vorstellen, mit denen man (z.B. aus der OpenStreetMap) Karten erzeugen kann. Der Vorteil von MapCSS ist, dass sie auf verschiedenen Plattformen verfügbar ist, leider mit großen technischen Unterschieden.

Hier können die Folien heruntergeladen werden: MapCSS – ein neuer Standard für Kartographie

Vortrag „OpenStreetMap – Kartographie für alle Zwecke“

Mittwoch, Oktober 9th, 2013

Morgen, den 10.10.2013 werd ich wieder mal einen Vortrag über die OpenStreetMap halten, diesmal auf der „Shareconomy“ Konferenz der Arbeitsgemeinschaft Datenverarbeitung.

Hier mein Abstract:

Am Anfang stand der Wunsch eine lizenzkostenfreie Straßenkarte der Welt zu erstellen und die OpenStreetMap war geboren – quasi die „Wikipedia der Landkarten“. Zuerst wurde sie von den großen kommerziellen Unternehmen belächelt – besonders aufgrund ihres scheinbar unstrukturierten simplifizierten Datenmodells. Schnell hat sich aber eine schier unüberschaubare Datenvielfalt etabliert, die sehr differenzierte thematische Karten ermöglicht – Karten historischer
Sehenswürdigkeiten, Radwegkarten, Karten für Personen mit eingeschränkter Mobilität oder speziell angepasste Karten für humanitäre Katastrophenfälle sind nur ein paar der Möglichkeiten.
Außerdem hat sich rund um die OpenStreetMap ein riesiges Ökosystem an Software entwickelt – das meiste davon natürlich Open Source. Schließlich wollen Daten gesammelt, eingetragen, abgezeichnet und vor allem weiterverarbeitet und schließlich dargestellt werden. Die großen Datenmengen stellen auch besondere Anforderungen an die Datenbanksysteme.
Die OpenStreetMap bildet inzwischen die Basis für einige erfolgreiche Unternehmen. Außerdem kann sie gut mit Open Data Initiativen kombiniert werden. Last but not least gibt es viele wissenschaftliche Projekte die sich mit diesen Daten auseinandersetzen.

Hier finden sich die Folien:

2013-shareconomy-openstreetmap-title

 

OpenStreetMap auf den Linuxwochen Wien 2011

Montag, Mai 2nd, 2011

Diese Woche, 5.-7. Mai 2011, finden wieder einmal die Linuxwochen in Wien statt. Ich wurde, wie letztes Jahr, dazu eingeladen etwas über die OpenStreetMap zu erzählen, und zwar am 5. Mai um 18:00. Vielleicht ist ja jemand meiner werten LeserInnenschaft interessiert, und beehrt mich mit ihrer/seiner Anwesenheit. Ich würde mich sehr darüber freuen :)

Hier der Abstract zu meinem Vortrag:

Neuigkeiten in der OpenStreetMap

Die OpenStreetMap, die Wikipedia für Landkarten, entwickelt sich stetig weiter. Inzwischen sind über 350.000 MapperInnen registriert, von denen im Schnitt 6.000 jede Woche aktiv sind und Änderungen an der Karte vornehmen.

Immer mehr kommerzielle Firmen entdecken die OpenStreetMap und verwenden sie als Datenquelle für ihre Services, sehr oft in Kooperation mit der OpenStreetMap-Community. Da die Lizenz CC-BY-SA für manche kommerzielle Firmen ein Problem darstellt, wurde ein Lizenzwechsel auf die selbstentwickelte ODbL (Open Database License) initiiert, der im April in die dritte Phase gegangen ist.

Auch in Österreich tut sich auch einiges. So hat GeoImage.at – eine Kooperationsgemeinschaft der österreichischen Länder und dem Bund für Orthophotos – seine Photos zum Abzeichnen freigegeben. Der Verein OpenStreetMap Austria wurde gegründet, mit dem Ziel die OpenStreetMap in Österreich zu bewerben. Seine erste Aktivität ist die Organisation der „State Of The Map – Europe“ Konferenz, die im Juli in Wien stattfinden wird.

Über all das wird Stephan Plepelits berichten, aber auch über sein großes Projekt – den OpenStreetBrowser – der auf Version 2.0 zusteuert.

OpenStreetMap Mashups & Open Data

Dienstag, August 31st, 2010

Ich wurde eingeladen einen Vortrag zu „OpenStreetMap Mashups & Open Data“  auf einem Meetup der Vienna Semantic Web Gruppe zu halten. Der Vortrag ist heute abend in Graz. Die Folien sind bereits (fast) fertig:

http://prezi.com/cpjkflxqcoou/openstreetmap-mash-ups-open-data/

Hier übrigens ein Video von meinem Vortrag: http://vimeo.com/14612713

OpenStreetMap – Eine Einführung

Samstag, Mai 8th, 2010

As I told you, I’m giving an introductory talk about the OpenStreetMap on the Linux Wochen in Vienna today. Here are the slides (in German for sure):

Linuxwochen 2010

Dienstag, Mai 4th, 2010

The coming weekend there are the „Linuxwochen“ (Linux weeks) again in Vienna. It’s an exhibition of several free software / open source initiatives, there are also a lot of talks. One of those talks will be about the OpenStreetMap, held by me. The date: Saturday, May 8th, 10:30 in the Festsaal. So if you haven’t heard of the OpenStreetMap yet (which I doubt if you know me), there’s the place and time to go :) You can also meet me at the OpenStreetMap-stand in the exhibition area (Thursday and Friday afternoon, Saturday more or less the whole day).

State of the Map 2009

Freitag, Juli 17th, 2009

As announced on my blog before, last weekend I went to the OpenStreetMap (OSM)-conference in Amsterdam, called the ‚State of the Map‚. The schedule featured a dense program of interesting talks, and several coffee breaks for networking. This year the Friday was the business-day, filled with talks about data quality and using OSM data in applications. Saturday and Sunday were dedicated to the community, with talks about the state of the OSM in different countries, new challenges for the project as it gets bigger and bigger and applications, applications, applications.

Some of the things which were interesting to me on the conference:

Data quality is a big issue for most of the people I talk with, people just can’t imagine, that data collected by a community can compete with commercial data. It is true, that the OpenStreetMap still has big white holes, especially on the country side. On the other hand completeness in the densely built-up areas (especially Europe) is much higher than in commercial map data (points of interests, foot- and cycleways, …), although assessment of this data shows, that most of the data has been created by a couple of people. Still, comparison of the street data with commercial data (done in the UK with Ordnance Survey data) show a very high correlation. A big advantage of the OpenStreetMap is the high actuality of the data, data often gets uploaded as soon as changes in the real world happen.

One big advantage of the OpenStreetMap is the big community. In March of this year the 100.000th user registered, last week there were already 135.000 users. For sure not all users are really active in the project, but at least about 10.000 users were active during the last two months. The big players in mapping business (Navteq, Teleatlas) have around 800 employees. The next goal for the OpenStreetMap are 1.000.000 registered users, for this, the project has to become more user friendly and faster.

Talking about user friendliness, one very interesting project are the ‚Walking Papers‚, designed by Michael Migurski (who I unfortunately failed to have a chat with. I wanted to talk about another of his projects, Cascadenik, which is used by my project OpenStreetBrowser). The idea is as brilliant as it is simple – you print a map of the region you are interested in, as you walk around you mark missing details (points of interests, roads, road names), scan the papers back in and upload them to the server, where they became available as background in your (and everybody elses) editor, to be drawn after. You don’t even need a GPS for this, because you can guess the position on the map. If you don’t have a scanner, you can send your papers per mail to some address, and they get scanned in for you.

It’s not possible to fit all interesting things I learned on the conference into this blog post, therefore I recommend you the video site of the conference, where eventually all talks will appear (hopefully; from last year still some talks are missing). All pictures uploaded to Flickr got the tag sotm09, all twitter messages got the tag #sotm09. On more link: a new webpage showing some great examples of mapping efforts: bestofosm.org.

In total about 250 people (mostly male geeks) attended the conference. I had the opportunity to talk to some of them and present my project the OpenStreetBrowser. Most were pretty impressed – I still hope it gets famous ;)

How the Power of the Crowd could change Urbanism

Dienstag, Juni 23rd, 2009

My studies in Sofia, Bulgaria, where I did my year of studying abroad with the Erasmus program, are finally over. Most of the things I did this semester were not so interesting, at least not for presenting them on my Blog. But one of my subjects, where I didn’t participate in the classes, but had weekly private seminar meetings, was really interesting. The subject of the class was „Environmental Policy and Sustainability“, and I was asked to write some essay about this topic. My first idea was to take some example about ecology in Austria and write about this, but then I decided, that this is lame and boring.

Prof. Elena Dimitrova, the teacher of the class, gave me some books as readings about Sustainability, the most interesting being „Earth at a Crossroads: Paths to a Sustainable Future“ (read it online on Google Books) by Harmut Bossel (published in 1998). The theory behind the book: If you want to have a sustainable development, it’s not enough to just live ecological, you also need sustainability in the social system, in transportation, in your political system and in the economy. When I read the book I had to think about Linux, Wikipedia, OpenStreetMap, CouchSurfing and other initiatives all the time.

So I decided to write about sustainability in digital culture and gave it a spin to politics and urban planning to get back to the topic of my studies. It took me a long time to research for this essay and to write it (even if my English is pretty good now, it’s still not my native tongue), there’s already a lot of information on the internet, but urbanism is still an unexplored  field. In the process I learned a lot, and I found many ideas which I would be interested to implement. If you are interested in this topic you should definitely check out the literature references in the end of the essay. I hope you will like it, I think it got pretty good in the end.

title page As you might see, the essay is available under a Creative Commons license, so please take it and do something interesting with it.
presentation title page This is the presentation to the subject, that I gave in a class (in front of a handful of people). There are two black pages, which should hold videos. The first is a great music video of a guy called Kutiman who remixed Youtube-videos. The second is a beautiful animation of the edits in the OpenStreetMap in the year 2008.

Good times in Austria and Bulgaria

Mittwoch, Juni 17th, 2009

Sorry for not posting a long time, but I’ve been very busy in the last four weeks. After a weekend in the Rodopi-mountains on a trip with the Erasmus Network (nice mountains, gorges and caves but stomach problems and bad organisation) I went to Vienna by bus (~13 hours each way) for a spontaneous visit (to help with the elections at the university and to join some parties which were going on that time). I finally even stayed a day longer and went to my home town Graz, because a friend, Peter, celebrated his birthday. In the following week I tried to finish my projects for university, there was still a lot to do. And finally three friends came for visit, Babsi for two days and Sub and Argyll for more than ten days. We had a good time together, in Sofia, on the mountain Vitosha and also some more places in Bulgaria, Veliko Tarnovo and Plovdiv, were we stayed for two nights each and short visits to Stara Zagora and Asenovgrad. These days I’m finishing my studies here in Sofia, after this I will enjoy my last weeks in Bulgaria, e.g. on a CouchSurfing-meeting this weekend on a beach near Varna on the Blacksea Coast. Here you have some impressions from the last weeks:

I hope now I will find some time to concentrate on my project, the OpenStreetBrowser, the „State of the Map“-Conference in Amsterdam is coming close (9.-12. July in Amsterdam). Yes, I haven’t announced it yet on my Blog, I’m going there, I hope it will be very interesting! During the last weeks I even had time do some OpenStreetMap-mapping in Bulgaria.