Sunday, November 6, 2016

Computer generated paraph

While generating some random test data with some unique properties (all positive, highly autocorrelated, uniform distributed) I accidently bumped on a nice way to generate paraphs using R.


Try yourself in R:

Thursday, September 15, 2016

Foss4g.be - The Belgian conference on open-source geospatial software

Next week, the second edition of Foss4g.be, the Belgian conference on open-source geospatial software will take place in Tour and Taxis in Brussels.

The conference will bring together developers and users of open source geomatics software from Belgium and all over the world. Participation is free of charge but registration is required.

We have a varied program for you: in the plenary session we will present the current state of many of the major Open source GIS applications - this includes novelties demonstrated at the last FOSS4G conference in Bonn.

Next in the main track the different regions of Belgium will present their open (geo) data sets. Moreover Christian Quest from Open StreetMap France will explain how the Openstreetmap community was actually part of the creation and maintenance of the address database in France.

In our parallel sessions we have presentations covering all aspects of Open source geospatial. Presentations on the usage of some of the most widely used programs, such as QGis, Openlayers3 and PostGIS, but also less well known solutions for handling 3D data, building SDI and doing advanced analyses. With the open streetmap conference happening just the day after this conference, we also have a special track with specialised

Last but not least, conferences are all about meeting networking and meeting new people, and you will get the chance to do so during our breaks!

Hope to see many of you in Brussels!

http://2016.foss4g.be

Thursday, September 8, 2016

In September, Brussels turns into Maptember

In two weeks from now, from 22 september until 26 september 5 big events from the open geo movement will be happening in Brussels.


On 22 september there will be two conferences: one FOSS4G Belgium conference organised by the local , which focuses on software for Geo. There will also be a lot of attention to open (geo) data sets provided by different governement agencies in Belgium.


On the same day in a different location the Humanitarian OpenStreetMap Team will also be gathering for their HOT summit. After both events, forces will be joined for a mapathon.

The next three days the international openstreetmap conference will be happening at VUB.
State Of The Map

Last but not least on Monday after all events, there will be a hackday, focused on OSM and OSGeo technologies.

Completely lost track? Check
http://maptember.brussels/ for an overview.

Monday, April 11, 2016

OSGeo.be presents: GeoDevEvening webmapping and OpenLayers 3

Next monday, OSGeo.be will be organising their first GeoDevEvening. The theme will be webmapping and especially Openlayers 3. There will be two speakers, Pierre Marchand of Atelier Cartographique wil give an overview of Webmapping tools. Later we will take a deeper dive with Thomas Gratier, one of the authors of the OpenLayers 3 Beginners guide.

OpenLayers 3 is a JavaScript based library for web mapping, published under BSD license. It groups a set of functionalities to create both lightweight web mapping applications and more heavy web mapping applications for advanced usages. It enables display of geographic features (markers, lines, polygons) with custom styles, most of the time with background maps services from various sources (including OpenStreetMap). It manages all interactions to select, draw geographic entities, display, measure geographic coordinates and manage different Earth representations using cartographic projections.

The event will happen at  BEL in Brussels (those who were at FOSS4G.be will remember the place), next monday 18 april at 19:00 until 22:00.  The event is free. You can register here.

Hope to see many of you in Brussels!

About OSGeoDevEvening:
OSGeoDevEvening is an event where developers / researchers can learn & speak about a specific tech. We are always looking for speakers for the next events, so if you want to give a presentation about R, grass, QGIS, PostGIS... please contact us.

Tuesday, February 2, 2016

Report of Geospatial@FOSDEM 2016


Last Sunday, during FOSDEM the second edition of the geospatial devroom was happening.
As said before we had a nice lineup with 15 presentations with topics ranging from established GIS tools, Open Streetmap, 3D visualisation and spatial databases.

Anyway, I did the first presentation on SAGA GIS, and I was happy to have some very nice slides prepared by other members of the SAGA community.
Next up was Hugo Mercier (Oslandia) who presented Tempus. Planning multimodal transportation is a very hard problem, and it was nice to see that you can actually get the sources of the whole project. Next up was Astrid Emde presenting Mapbender, an OSGeo project allowing one to create web SDI's easily.
The next talk by Zeeshan Ali, "Build a geo-aware OS" was one where I was looking forward to : the talk is not one you usually encounter during FOSS4G conferences, but an example of the crosspolination of technologies you get at FOSDEM. It shows how location can now be used in Gnome (and other projects building on FreeDesktop) using common API's.
Getting ready to add location using a raspberry zero

Next up we got a full room for the presentation of Margherita Di Leo and Anne Ghisla presenting the results of the Google Summer of code projects coached at OSGeo.
This is how we like our devroom: full!


Everything got even more crowded for the next talk by Tuukka Hastrup on open journey planning. As people kept trying to enter our room even though it was full, I decided to play doorkeeper and missed the actual talk. 


For those who don't get it "FULL", stop entering!
But based on the feedback and the slides, I'm really looking forward to the video of the talk.
Still in a crowded room Ilya Zverev gave a talk about mapping with OSM with a phone . Rather than mapping using satellite imagery, it makes more sense to map when you are actually in the field.


The next talks were all focused on 3D. Thomas Bremer talked about how one could implement a flight simulator in javascript. He focused on the different components that could build such a simulator. I hope to see a demo of this soon. The next talk was on the integration of Openlayers and Cesium. I missed the talk myself (one has to get lunch at one point), but I got some nice feedback. The last talk in our 3D theme was Vincent Mora on iTowns, showing impressive Lidar scans of large parts of Paris. Even though many of us are still struggling with 2D, a lot of data collection is now 3D and I think GIS systems still have to catch up.

The next block of four presentations were all on databases. Starting of with MySQL GIS. I was pleasantly suprised by the presentation. MySQL and Oracle got some bad press in some open source communities, but I believe the way they are working on MySQL is examplary: not only is MySQL catching up quickly with other (spatial) databases, this is largely done by improving the underlying boost geometry library, which can be leveraged by other projects. Oracle is currently sponsoring 2 developers on that project.
Also Rasdaman, a raster array database extension for PostgreSQL was presented. Even though their use cases may currently be 'far from the bed' of many developers, I like the fact that they are not only implementing a product, but also shaping the standards (OGC and ISO) on the way. 
The third presentation focused on the geographical capabilities of a completely different type of database: mongoDB. I see a lot of possibilities of this database for geodata which is not as structured as classic databases. Nice to see their performance is improving.
The last presentation in the on pivotal Greenplum database was sometimes hard to follow, but I will definitely check it out further: I was not aware of the database, but it is a parallel database based on Postgresql, meaning that postgis functionality can be used, but also the extensions for trajectory data which were the topic of the presentation.

Closing the devroom was a presentation on geocoding by Ervin Ruci, which is a topic where the performance of open solutions can still be improved a lot.


At the end of the day, the closing keynote of FOSDEM, which was given by the people of HOT OSM. A full Janson is always something special, and this is definitely true for a topic of a talk I'm so familiar with.


Closing Keynote about Humanitarian Openstreetmap

To conclude, I believe the devroom at FOSDEM was a great event, and I really think it has its special role compared to other events such as FOSS4G and State of the Map - the chance to meet other open source communities.

Videos of the day should be available soon, thanks to the incredible FOSDEM video team and Anne Ghisla and Thomas Gratier who helped with the camera/organisation.

Monday, December 21, 2015

Schedule for the Geospatial devroom @FOSDEM 2016

I have the honour to present to present to you the schedule for the geospatial devroom at FOSDEM, which will happen on Sunday 31/01/2016.

We have a nice lineup with some well known GIS tools, moving over to new developments happening at OSGeo and Open Streetmap. 3D visualisation is the topic of different presentations around noon. And should you prefer backend work, the afternoon has a lineup of no less than 4 different geospatial databases (MySQL, Rasdaman, Mongodb and Pivotal).

Event Speakers Start End

Sunday

  Automating your Analysis with SAGA GIS Johan Van de Wauw 09:30 09:55
  Tempus - a framework for multimodal trip planning Hugo Mercier 10:00 10:25
  Mapbender3
Create Your Own Geoportal Web Application And Service Repository
Astrid Emde 10:30 10:55
  Building a geo-aware OS Zeeshan Ali (Khattak) 11:00 11:25
  Results of Google Summer of Code 2015 at OSGeo Margherita Di leo, Anne Ghisla 11:30 11:55
  100% open journey planning
Open source, open APIs, open data
Tuukka Hastrup 12:00 12:25
  Mapping with a phone
Why is it so hard to edit OpenStreetMap on a phone, and how MAPS.ME solves this problem
Ilya Zverev 12:30 12:55
  OSM + SRTM + WebGL = Flight Simulator Thomas Bremer 13:00 13:25
  OL3-Cesium, 3D for OpenLayers Guillaume Beraudo 13:30 13:55
  iTowns, an opensource web framework for 3D visualization Vincent Mora 14:00 14:25
  Introduction to MySQL GIS
A crash course
Norvald H. Ryeng 14:30 14:55
  Managing Spatio-Temporal Big Data through Scalable OGC Web Services Alex Dumitru 15:00 15:25
  Geospatial and Me
How to fast exploit geospatial data on apps
Norberto Leite 15:30 15:55
  Trajectory: A novel geospatial data model of Pivotal GPDB Kuien Liu 16:00 16:25
  Geocoding the World with openaddresses.io
Geocoding on the cloud
Ervin Ruci 16:30 16:50
update
To close the day we can head of to the the Closing keynote of FOSDEM which will be given by Blake Girardot (HOT OSM)
Putting 8 Million People on the Map:
Revolutionizing crisis response through open mapping tools

17:00 - 17:50Janson

For all of you who don't know FOSDEM: FOSDEM is a free and non-commercial event bringing together about 5000 developers in Brussels, Belgium. The goal is to provide open source software developers and communities a place to meet and share thoughts. The participation is free of charge, although donations are welcome. The next edition will take place the last weekend ofJanuary 30 - 31 2016. This year for the second time there will be a Geospatial devroom on Sunday 31/1/2016.

Hope to see all of you in Brussels!

Wednesday, October 28, 2015

Call For presentations Geospatial devroom @FOSDEM 2016

Please forward!

FOSDEM is a free and non-commercial event bringing together about 5000 developers in Brussels, Belgium. The goal is to provide open source software developers and communities a place to meet and share thoughts. The participation is free of charge, although donations are welcome. The next edition will take place the last weekend of January 30 - 31 2016. This year for the second time there will be a Geospatial devroom on Sunday 31/1/2016,organised by members of the OSGeo, Locationtech and OpenStreetMap communities.

Geospatial technology is becoming rapidly mainstream. The idea underpinning the geospatial devroom is bringing together developers with different backgrounds to disclose the opportunities offered by cutting-edge open source geospatial technologies. Due to the success of last years devroom, a Belgium local chapter of OSGeo, OSGeo.be was founded, and is now taking part of the organisation of the devroom as driving community.

The Geospatial devroom is the place to talk about the state of the art of open, geo-related data, free and open source geospatial software and its ecosystem. This includes standards and tools, e.g. spatial databases, online mapping tools, geospatial services, used for collecting, storing, delivering, analysing, and visualizing geodata. We welcome submissions about: 

  • Web and desktop GIS applications
  • Interoperable geospatial web services and specifications
  • Collection of data using sensors/drones/satellites
  • Open hardware for geospatial applications
  • Geo-analytic algorithms/libraries
  • Geospatial extensions for classical databases (indexes, operations) and dedicated databases
  • Collaborative editing/versioning of geodata
  • Big geodata, scalable GIS applications
  • Volunteered Geograpic information - Crowdsourced data

HOW TO SUBMIT YOUR PROPOSAL FOR A TALK

Are you thrilled to present your work to other open source developers? Would you like to run a discussion? Any other ideas? Please submit your proposal using the Pentabarf event planning tool at:


Make sure to select the 'Geospatial devroom' as  'Track'. Please, specify in the notes if you prefer for your presentation either a short timeslot (lightning talks ~10 minutes) or a long timeslot (20 minutes presentation + discussion). However, note that time slots are indicative and will be assigned according to the needs of the session.

The DEADLINE for submissions is Tuesday **1st December 2015**. Notification of acceptance will be sent to the Authors by Friday 11/12/2015 at the latest.

Should you have any questions, please do not hesitate to get in touch with the organisers of the devroom at fosdem-geospatial@gisky.be!

Johan Van de Wauw
Margherita Di Leo
Astrid Emde
Anne Ghisla
Martin Hammitzsch
Andy Petrella 
Dirk Frigne
Olivier Courtin
Thomas Gratier