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#qgis

20 posts20 participants2 posts today
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Geotribu

🤿 Enfilez vos combinaisons de containers et plongez dans les profondeurs de QGIS server, pour le déployer avec docker, un article qui vous ouvrira les flux OGC vers l'architecture de la cité legendaire.

✒️ Paul Blottiere

👓 @pjeremie, @lbartoletti, Benoit De Mezzo, @CabiecesJ, @geojulien

geotribu.fr/articles/2025/2025

geotribu.frQue se cache-t-il derrière l'image Docker officielle de QGIS Server ? - GeotribuLes mystères de l'image Docker officielle de QGIS Server
#QGIS#QGISserver#docker
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Anita Graser 🇪🇺🇺🇦🇬🇪

Thrilled to share our latest publication "Visualizing uncertainties in landslide susceptibility modelling using bivariate mapping" nhess.copernicus.org/articles/

What’s inside:
✅ A new way to jointly visualize susceptibility & uncertainty in landslide prediction
✅ Practical, open-source tools for implementation in R and QGIS

Loved the interdisciplinarity of this project

nhess.copernicus.orgBrief communication: Visualizing uncertainties in landslide susceptibility modelling using bivariate mappingAbstract. Effectively communicating uncertainties inherent to statistical models is a challenging yet crucial aspect of the modelling process. This is particularly important in applied research, where output is used and interpreted by scientists and decision-makers alike. In disaster risk reduction, susceptibility maps for natural hazards are vital for spatial planning and risk assessment. We present a novel type of landslide susceptibility map that jointly visualizes the estimated susceptibility and the corresponding prediction uncertainty, using an example from a mountainous region in Carinthia, Austria. We also provide implementation guidelines to create such maps using popular free and open-source software packages.
#DisasterRiskReduction#Landslides#QGIS
Continued thread
Public
Jonatan Hildén

Turns out that this particular example comes with a problem. GDAL cannot reproject the Wagner VII projection:

ERROR 1: PROJ: pipeline: Pipeline: A forward operation couldn't be constructed
ERROR 1: Too many points (441 out of 441) failed to transform, unable to compute output bounds.

Is there some workaround? If not, I guess I need to just convert the damn map to vectors …

#gdal#qgis
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QGIS Gebruikers Nederland

🤖 Afgelopen vrijdag hebben wij bij #ITC
@utwente de toekomst van #AI #MachineLearning en #DeepLearning in #QGIS verkend. Inspirerende presentaties over plugins en tools. Waardevolle discussies en inzichten voor de toekomst van deze technologie in QGIS. Dank aan alle deelnemers en in het bijzonder onze internationale gasten Matthias Kuhn en @suricactus van @opengisch.

Dank aan Rosa Aguilar voor het organiseren en de steun van @eScienceCenter!

#QGISNL#OSGeoNL#OSGeo
Replied in thread
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Bastian Ehrenholz

@Janes zur Unterstützung von 3. wird bei uns in den kommenden Monaten das #QGIS-PlugIn #PublicParkingSpaces im Rahmen einer Masterarbeit weiterentwickelt.
Dabei soll aufgezeigt werden, welche Stellflächen in nahegelegene Parkhäuser verschoben werden könnten.
Das Tool kann also auch bei der Planung neuer #Quartiersgaragen helfen.

Für die Entwicklung suchen wir interessierte Endanwender für Interviews und zum Testen.

git.rz.tu-bs.de/ive/studentisc

GitLabInstitut für Verkehrswesen Eisenbahnbau und -betrieb / Studentische Arbeiten / Public Parking Spaces · GitLabThis plugin analyzes the location and capacity of public parking garages (PPG) and helps to identify street side parking (SSP) which could be shifted into them. After determening...
Public
Mark Stosberg

Dear #QGIS

I'm setting up a new Linux laptop and am reconsidering the best way way to manage keeping a particular QGIS version in sync with a number of key plugins.

Last time I used conda and that worked OK.

The Arch Linux package manager struggled with the task and I did not get very far trying Nix as a package manager for these. Is there another choice I should be considering?

Public
Brie Mmm
Just wanted to inform the world, that Freehand Raster Georeferencer plugin for #QGIS is a godsend for anyone working with old #maps. Now, if only the Almighty would send me a map of the region made between 1786 and 1893, preferably in '30s…
Public
stevefaeembra

An attempti at a cartogram of world population distribution.

Generated cumulative population by lat and long separately, then normalized to lat/long in Web Mercator.

Done in #QGIS with spatialite/GPKG.

Note, individual grid cells don't have same population. But each column, and each row, should be equal population.

The center point should be the median center of population

Data from Kontur 22km hex cell centroids.

a distorted half-tone map of the earth and its population distribution. It is distorted in a cartogram-like way. A 10x10 grid is superimposed. Each cell has a different population, but each column represents 10% of the world population, and so does each row. It shows how the western hemisphere is only about 15% of the world population, and the southern hemisphere only about 10% The dots are sized by log10(population). It can be a bit misleading though, as the edges tend to be denser. So don't interpret dot density as being population density :)
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Jonatan Hildén

Nifty QGIS feature:
If you have a raster map image and you know the projection (in this case I recognized it as Wagner VII), you can just use the Georeferencer tool, put in a few points and assign the projection. Just use the setting ”linear” if you know that no warping is necessary.
#qgis #geospatial

QGIS georeferencer tool and in the background a georeferenced raster map in the Wagner VII projection, with vector coastline overlaid.
Public
OPENGIS.ch

We turned 10! 🎉
A decade of #opensource GIS, community-driven dev & building a company rooted in transparency, sustainability & collaboration.

We’re proud to be #QField makers and the top two contributors to #QGIS, having shaped it into the world-class GIS it is today.

Our values:🌱 Give back🌍 Love nature🟰 Reduce inequalities❤️ Our team – our heart[h]

Thanks to everyone who's been part of the journey. Here's to the next 10! 💚

#QFieldCloud#OpenSourceGIS#SwissGIS
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