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Articles on this Page
- 08/06/17--07:00: _OSM user classifica...
- 08/14/17--07:00: _OSM data quality as...
- 09/15/17--07:36: _Pointclouds in Post...
- 09/18/17--07:58: _iTowns 2 : 3D Geosp...
- 10/04/17--06:06: _Oslandia is baking ...
- 10/07/17--00:30: _Refresh your maps F...
- 10/10/17--00:30: _Undo Redo stack is ...
- 10/17/17--07:18: _Auxiliary Storage s...
- 10/25/17--00:00: _Detecting objects s...
- 11/29/17--07:00: _Cluster bike sharin...
- 12/20/17--08:09: _QGIS 3 compiling on...
- 12/27/17--01:45: _OSM data classifica...
- 01/05/18--03:11: _Itowns v2.2 released!
- 01/12/18--07:47: _Best wishes for 2018
- 01/30/18--04:49: _Predict bike availa...
- 02/23/18--04:16: _Database migrations...
- 02/25/18--23:46: _QGIS 3.0 has been r...
- 05/03/18--08:12: _Docker images for QGIS
- 05/07/18--00:30: _Deeposlandia 0.4 ha...
- 08/06/17--07:00: OSM user classification: let’s use machine learning!
- 09/15/17--07:36: Pointclouds in PostgreSQL with Foreign Data Wrappers
- 09/18/17--07:58: iTowns 2 : 3D Geospatial information on the web !
- 10/04/17--06:06: Oslandia is baking some awesome QGIS 3 new features
- 10/07/17--00:30: Refresh your maps FROM postgreSQL !
- 10/10/17--00:30: Undo Redo stack is back QGIS Transaction groups
- 10/17/17--07:18: Auxiliary Storage support in QGIS 3
- 10/25/17--00:00: Detecting objects starting from street-scene images
- 11/29/17--07:00: Cluster bike sharing stations around french cities
- 12/20/17--08:09: QGIS 3 compiling on Windows
- 12/27/17--01:45: OSM data classification: code release
- 01/05/18--03:11: Itowns v2.2 released!
- 01/12/18--07:47: Best wishes for 2018
- 01/30/18--04:49: Predict bike availability at bike sharing stations
- 02/23/18--04:16: Database migrations and Pum
- 02/25/18--23:46: QGIS 3.0 has been released
- 05/03/18--08:12: Docker images for QGIS
- 05/07/18--00:30: Deeposlandia 0.4 has been released!
At Oslandia, we like working with Open Source tool projects and handling Open (geospatial) Data. In this article series, we will play with the OpenStreetMap (OSM) map and subsequent data. Here comes the seventh article of this series, dedicated to user classification using the power of machine learning algorithms. 1 Develop a Principle Component Analysis
At Oslandia, we like working with Open Source tool projects and handling Open (geospatial) Data. In this article series, we will play with the OpenStreetMap (OSM) map and subsequent data. Here comes the eighth article of this series, dedicated to the OSM data quality evaluation, through production of new maps. 1 Description of OSM element
IGN and Oslandia have been collaborating on a research project named LI3DS. LI3DS stands for “Large Input 3D System”. The project involves acquiring data on the field, such as images and point clouds, and providing tools for storing, processing and analyzing the data. Everything developed as part of the project is opensource, and available on
Oslandia, French IGN, LIRIS CNRS Research Laboratory and Atol CD announce the release of iTowns 2, the new version of the OpenSource 3D geospatial data visualization framework for the web. Rewritten from scratch, this new major version allows users to benefit from a solid technological basis, and new 3D visualization features. Its capabilities for software
QGIS 3.0 is now getting closer and closer, it’s the right moment to write about some major refactor and new features we have been baking at Oslandia. A quick word about the release calendar, you probably felt like QGIS 3 freeze was expected for the end of August, didn’t you? In fact, we have so many
Continuing our love story with PostgreSQL and QGIS, we asked QGIS.org a grant application during early 2017 spring. The idea was to take benefit of very advanced PostgreSQL features, that probably never were used in a Desktop GIS client before. Today, let’s see what we can do with the PostgreSQL NOTIFY feature! Ever dreamt of being able to
Let’s keep on looking at what we did in QGIS.org grant application of early 2017 spring. At Oslandia, we use a lot the transaction groups option of QGIS. It was an experimental feature in QGIS 2.X allowing to open only one common Postgres transaction for all layers sharing the same connection string. When activated, that option will bring
For those who know how powerful QGIS can be using data defined widgets and expressions almost anywhere in styling and labeling settings, it remains today quite complex to store custom data. For instance, moving a simple label using the label toolbar is not straightforward, that wonderful toolbar remains desperately greyed-out for manual labeling tweaks …unless you do
Exploiting artificial intelligence within the geospatial data context tends to be easier and easier thanks to emerging deep learning techniques. Neural networks take indeed various kinds of designs, and cope with a wide range of applications. At Oslandia we bet that these techniques will have an added-value in our daily activity, as data is of
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
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
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
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
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
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
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
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
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