Tag: QGIS

17 October 2017

Auxiliary Storage support in QGIS 3

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
10 October 2017

Undo Redo stack is back QGIS Transaction groups

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
7 October 2017

Refresh your maps FROM postgreSQL !

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
4 October 2017

Oslandia is baking some awesome QGIS 3 new features

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
14 August 2017

OSM data quality assessment: producing map to illustrate data quality

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
14 June 2017

QGIS Server: security aspect

Testing and proofing QGIS 3 against security leaks – a bit of context QGIS Server is an open source OGC data server which uses QGIS engine as backend. It becomes really awesome because a simple desktop qgis project file can be rendered as web services with exactly the same rendering, and without any mapfile or
30 June 2014

QGIS 2.4 release out, Oslandia inside

There is a new QGIS release out : version 2.4, codename Chugiak is now available. Binary packages for your platform have been generated, and you can directly download and try out this new release  of the famous Desktop GIS software. QGIS 2.4 has a lot of new features in all of its components. There is
14 June 2014

Masking features in QGIS 2.4

Have you ever wondered how to mask features on a map, so that only a particular zone is highlighted ? There have been a simple plugin to do that for a while. Called ‘Mask’, it allowed to turn a vector selection into a new memory layer with only one geometry made by the geometric inversion
19 February 2014

QGIS plugin for water management

Oslandia releases today a new plugin for the QGIS processing framework, allowing for water distribution network simulation. It integrates the opensource EPANET simulation software. EPANET models water distribution networks. It’s a widely used public-domain simulation software developed by the US Environmental Protection Agency.
23 September 2013

QGIS Community meeting in Brighton

Developers and contributors from the QGIS project are used to gather physically twice a year across different countries. Such an event allows people to synchronize their effort, and discuss new possible developments.cThe latest QGIS community meeting took place in Brighton from the 12th to the 16th of September, just before the FOSS4G event. It was