Blog

7 May 2018

Deeposlandia 0.4 has been released!

On a previous article published on this blog, we introduced our work dedicated to convolutional neural network. We are now happy to announce the 0.4 release of this R&D project! What’s new? Until the last released version (0.3.2), neural networks were built with the TensorFlow library. The major modification comes with the transition to the
3 May 2018

Docker images for QGIS

With support from Orange we’ve created Docker images for QGIS. All the material for building and running these images is open-source and freely available on GitHub: https://github.com/Oslandia/docker-qgis. The docker-qgis repository includes two Docker images: qgis-build and qgis-exec. The qgis-build image includes all the libraries and tools necessary for building QGIS from source. Building QGIS requires installing
26 February 2018

QGIS 3.0 has been released

We are very pleased to convey the announcement of the  QGIS 3.0 major release called “Girona”. The whole QGIS community has been working hard on so many changes for the last two years. This version is a major step in the evolution of QGIS. There are a lot of features, and many changes to the
23 February 2018

Database migrations and Pum

At Oslandia we often need to deal with database migrations. So it’s an important topic to us. And it should be an important topic to anyone maintaining databases in production. First of all I want to mention a good series of articles by K. Scott Allen on the philosophy and practice of database migrations and
30 January 2018

Predict bike availability at bike sharing stations

In a previous article, we described the clustering of bike sharing stations in two french cities, i.e. Bordeaux and Lyon. We saw that geospatial clustering is interesting to understand city organization. Results were especially impressive for the Lyon data set. Here we propose to continue the effort about bike sharing system description by attempting to
12 January 2018

Best wishes for 2018

Happy new year 2018 The whole team at Oslandia sends you its best wishes for this new year, full of serenity and freedom. 2017 has been an important year for our company, with a change in ownership and management, growth of the team, and new internal organization. This allows us to foresee next years with
5 January 2018

Itowns v2.2 released!

  We have the pleasure of announcing the release of iTowns v2.2! Itowns is a Three.js-based framework written in Javascript/WebGL for visualizing 3D geospatial data right into the browser, developed and maintained by Oslandia, IGN and AtolCD. In this release, you will find a lot of bug fixes and performance improvements. Notably, the npm package
27 December 2017

OSM data classification: code release

After a set of blog posts published the last summer, we are glad to announce that the dedicated code (version 1.0) has been released on Github. Our OpenStreetMap history data pipeline will let you analyze user contributions through time, following several modalities: evaluate the area evolution in terms of nodes, ways and relations; investigate on
20 December 2017

QGIS 3 compiling on Windows

As the Oslandia team work exclusively on GNU/Linux, the exercise of compiling QGIS 3 on Windows 8 is not an everyday’s task :). So we decided to share our experience, we bet that will help some of you. Cygwin The first step is to download Cygwin and to install it in the directory C:\cygwin (instead
29 November 2017

Cluster bike sharing stations around french cities

Oslandia team is involved in a constant effort in geospatial data gathering and analysis. By taking advantage of the recent trend in public open data releasing, and after reading an inspiring work done for Dublin data, we decided to evaluate the situation in our own living places. Here comes the open data portals for both