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Hans van der Kwast :qgis:

@hansakwast.fosstodon.org.ap.brid.gy
159 followers 1 following 139 posts

Associate Professor at #ihedelft | Owner of QWAST-GIS Consultancy & Training | Physical Geographer | #OpenSource advocacy | board member #qgisnl | #OSGeo Charter […] 🌉 bridged from ⁂ fosstodon.org/@hansakwast, follow @ap.brid.gy to interact

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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 15/10/2026
Last week, I was at the QGIS User Conference and Contributor Meeting in Laax. What an unforgettable week! Talks and a workshop at 2,222 m, a hike at the Glarus Thrust 🏔️ and lots of great conversations with the #QGIS community. My experiences in a blog post […] [Original post on fosstodon.org]
Photo collage of the QGIS User Conference and Contributor Meeting 2026 in Laax, Switzerland.
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 07/10/2026
Here's a preview of the new Vector Field Renderer that will be available in #QGIS 4.4 as a result of the recent crowdfunding for native tools for hydrology. The preview shows how you can visualise a flow direction raster with arrows. #GIS #OpenSource
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 07/10/2026
This afternoon, I'll give the workshop "Hydrological Analysis in QGIS" at the QGIS User Conference in Laax, Switzerland. Participants will get hands-on experience with the upcoming native hydrology tools in #QGIS that are being developed through the recent […] [Original post on fosstodon.org]
Workshop Hydrological Analysis in QGIS
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 02/10/2026
Today, 24 MSc students of the #ErasmusMundus #FloodRiskManagement programme have successfully completed the course QGIS for Hydrological Applications at @tudresden. They have received the official #QGIS certificate. Congratulations to this amazing and diverse […] [Original post on fosstodon.org]
Erasmus Mundus FRM students receive the official QGIS certificate.
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 30/09/2026
Assembled my new Framework 13 Pro and installed gisnix by @timlinux from Kartoza. Loving the combo already! Sustainable hardware + a clean, reproducible NixOS setup for geospatial work. Nightly QGIS runs great, including the new hydrology tools. Note: gisnix […] [Original post on fosstodon.org]
QGIS nightly build with new native hydrology tools running on gisnixFramework 13 Pro with gisnix based on NixOS
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 22/09/2026
Another native hydrology tool coming in #QGIS 4.4: Thin Plate Spline interpolation. 💧📈 Great for groundwater mapping: smooth surfaces, no plugins, fully integrated in QGIS. Thanks to everyone who supported the crowdfunding, and to @northroadgeo for the […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 21/09/2026
A first sneak peek of the native hydrological tools coming to #QGIS 4.4! 💧🌍 This video shows the full workflow for stream extraction and catchment delineation, all running natively in QGIS, with no external dependencies. Huge thanks to everyone who […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/09/2026
Hardcopy of the 2nd Edition of the book #Geomorphometry - Concepts, Software, Applications has arrived! Happy to have a chapter about #QGIS and #PCRaster in the book and to have contributed to the general software chapter. Great to be in the book with […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 05/09/2026
Finished teaching #QGIS for #Groundwater Applications to the #ErasmusMundus GroundWatCh MSc students at IST in Lisbon! Despite very hot days in classrooms without AC, the group worked hard and produced great groundwater and surface water maps. Today, the […] [Original post on fosstodon.org]
Group picture with official QGIS certificates
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 04/09/2026
🚀 The new edition of the book #Geomorphometry has been published. It’s not open access, but I’m glad to see a strong shift toward #OpenSource tools like #QGIS, #PCRaster, #GRASS, #Whitebox and Python/R packages. Happy I could contribute to this through my […] [Original post on fosstodon.org]
Book cover of Geomorphometry - Concepts, Software, Applications
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 28/08/2026
During a #QGIS Open Day session live on #YouTube today, I posted a comment about #PeerTube. Guess what! It didn't show up for the host and viewers. I reposted the comment, and it happened again. We can't trust #BigTech!
Live chat for viewersLive chat for me
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 19/08/2026
🎉We did it! Thanks to the amazing support from the #QGIS community, both the initial €6000 goal and the extended €7000 goal have been achieved. Native #hydrology tools and the new flow direction & wind barb renderers will land in QGIS 4.4. Thank you to everyone […] [Original post on fosstodon.org]
Initial and extended crowdfunding goals for hydrology core tools in QGIS have been achieved!
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/08/2026
🎉Today we've reached the €6000 goal for native hydrology tools in #QGIS. Thank you🫶 This means that @northroadgeo can implement these tools so you can use them in QGIS 4.4🚀 📢 With 2 weeks left, we’re aiming for an extended goal of €7000 to add native flow […] [Original post on fosstodon.org]
Initial crowdfunding goal reached. Call for donations for extended goal.
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 11/08/2026
🎉We've just passed 50% of the crowdfunding goal for bringing native #hydrology tools in #qgis. Thanks for all donations so far🙏🏼 If you rely on hydrological workflows in QGIS or simply want to strengthen #OpenSource #gis, please consider supporting the effort […] [Original post on fosstodon.org]
Crowdfunding for native hydrology tools in QGIS
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 06/08/2026
📢 #crowdfunding to bring essential #hydrology tools directly into #QGIS. If you use QGIS for #groundwater or surface #watermanagement, this will make your workflows faster and more reliable. 👉 More info […] [Original post on fosstodon.org]
Crowdfunding for native hydrology tools in QGIS
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 31/07/2026
At today’s QGIS Open Day, I launched a crowdfunding to develop native #hydrology tools for #QGIS. These tools will make stream extraction, basin delineation and #groundwater workflows faster, stable and fully cross‑platform. The tools will be implemented by […] [Original post on fosstodon.org]
Crowdfunding for native QGIS Tools for Hydrology
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/07/2026
Nice to see more #QGIS User Groups on the map of the Easter Egg in QGIS 4.2🚀 Watch this super nice video by Ujaval Gandhi and his daughter on how to find the Easter Eggs in QGIS: youtu.be/pH9Am3FgRS0?is=7IIpQ0p3buf…
Countries with a QGIS User Group
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 16/07/2026
🎉Big milestone today: the #PCRaster Tools plugin for #QGIS just passed 100,000 downloads! From a small prototype to a full Processing Provider plugin, it now brings PCRaster’s map algebra and full environmental modelling framework (deterministic, stochastic […] [Original post on fosstodon.org]
PCRaster Tools plugin for QGIS passes 100k downloads
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 10/07/2026
#FOSS4GNL 2026 was fantastic! Two inspiring days in Groningen with 12 workshops, 41 talks and a sold‑out conference. I wrote a blog with my highlights: www.qwast-gis.com/l/foss4gnl-2026-b… #FOSS4G #QGIS @osgeonl […] [Original post on fosstodon.org]
FOSS4GNL 2026 group picture at the Academy Building of the University of Groningen
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 08/07/2026
Giving my workshop on the new #gdal command line interface at #FOSS4GNL in Groningen. Free materials in English can be found at @gisocw: courses.gisopencourseware.org/mod/b…
Workshop on new GDAL command line14 participants at my workshop on GDAL at FOSS4GNL
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 08/07/2026
Onderweg naar #FOSS4GNL in Groningen, georganiseerd door @osgeonl & @qgisnl i.s.m. @Jantina_Tammes_School @universityofgroningen. Ik geef vandaag 3 workshops die je ook gratis kan volgen op @gisocw: 🔸️ Hands‑on met de nieuwe #GDAL Command Line Interface […] [Original post on fosstodon.org]
Workshops voor FOSS4GNL 2026
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 07/07/2026
It was a great week at #foss4geurope in Timișoara, Romania! Read my blog post here: www.qwast-gis.com/l/foss4g-europe-2…
Pictures from FOSS4GE 2026
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 03/07/2026
Workshop Hydrological Analysis in #QGIS this morning at #foss4ge2026 Free materials at @gisocw : courses.gisopencourseware.org
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 02/07/2026
Workshops are in full swing at #FOSS4GEurope! Tomorrow I’m giving my Hydrological Analysis in #QGIS workshop, covering native tools + #PCRaster, #GRASS and #WhiteboxTools 💧 👉 Follow along online at @gisocw […] [Original post on fosstodon.org]
Workshop Hydrological Analysis in QGIS at FOSS4G Europe 2026 and GIS OpenCourseWare
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 30/06/2026
I enjoyed the #MadeInEurope track at #FOSS4GEurope in Timișoara, Romania, today. Happy to have contributed to the discussion with my presentation about #DigitalSovereignty and #OpenSource software. I've addressed opportunities, business models and procurement […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 28/06/2026
On my way by train from Rotterdam to Timișoara for #FOSS4GE, more or less tracing the same path as the heat wave, proving even meteorology can’t resist a good #FOSS4G 😅 I’ll present on 29 June about the 3-30-300 rule and on 30 June about #DigitalSovereignty […] [Original post on fosstodon.org]
Route to FOSS4GE and back
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 27/06/2026
Watch back the #QGISOpenDay session where the Algerian #QGIS User Group was officially launched. www.youtube.com/live/6PxDgMRW3l8?is…
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 26/06/2026
It's time for the monthly #QGISOpenDay! The new Algerian #QGIS User Group will present themselves and I'll be interviewing them. Join us at 8 am UTC. Check the programme and streaming links of QGIS Open Day here: github.com/qgis/QGIS/wiki/QOD-June-…
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 06/05/2026
Public sector #GIS users, your input matters! The QGIS Trainer Network is running an international survey on how public institutions use and teach open‑source GIS. Results will be presented at the QGIS User Conference 2026 in Laax. 👉 Take the survey here […] [Original post on fosstodon.org]
QGIS survey for the public sector
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 23/04/2026
Vandaag staan @terglobo en ik op de HAS #GeoExperience in 's-Hertogenbosch met een #QGIS‑stand. We geven ook een workshop over #pointcloud processing & #3D #visualisatie in QGIS. Niet erbij? De workshop is gratis online te volgen op @gisocw […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/04/2026
🗓Save the date: 8–9 juli! Na 9 jaar keert #FOSS4GNL terug naar Groningen, waar het in 2017 begon. Twee dagen vol #opensource geo: hands‑on workshops + een dag presentaties voor developers, toepassers, beheerders en beleidsmakers. Samen met de […] [Original post on fosstodon.org]
Save the date voor FOSS4GNL
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/04/2026
I just passed 35K subscribers on my YouTube channel and I'm grateful for everyone following my open‑source geo work. But for those who prefer to avoid big tech: my videos are also published on #QwastTube, my own #PeerTube instance. ▶️ QwastTube […] [Original post on fosstodon.org]
35k subscribers on my YouTube channel
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 14/04/2026
New open course at @gisocw! Learn collecting ground truth in the field with @merginmaps, #AI-assisted #segmentation of ground truth polygons with the AI Segmentation plugin by #TerraLab and the full workflow from downloading #Sentinel-2 data, Random Forest […] [Original post on fosstodon.org]
New course at GIS OpenCourseWare
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 11/04/2026
Ik ben vandaag op de #DigitalSummit van het #NetwerkDigitaleSamenleving van #ProgressiefNederland ❤️💚. Ben jij er ook en wil je sparren over #opensource, #geo, en de rol van open‑source communities in het versterken van #DigitaleSouvereiniteit? Zoek me gerust […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 26/03/2026
@osgeonl organiseert op 17 april een beginnersdag voor iedereen die met #opensource #geo wil starten. Ik geef daar een workshop over @merginmaps: in #QGIS een surveyproject opzetten en daarna buiten karteren met je telefoon. :qgis: 📱🗺 Kom je ook? Programma en […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 27/02/2026
The recording of Wednesday’s webinar “QGIS 4 for Water: What’s New, What’s Next?” is now available on the YouTube channel of the Australian Water School! With @geomenke, @yonas and myself. 📹 Watch it here: youtu.be/vnHxLHHz-ZQ #QGIS #GIS #FOSS4G #OSGeo
Screenshots from webinar
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 15/02/2026
During last year's national elections, I volunteered in the campaign activities of #GroenLinksPvdA. With so many volunteers, keeping track of areas covered and with which flyers can be a real challenge. To help with that, I built the "Brievenbussen App" using […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 13/02/2026
📢 Mergin Maps tutorial videos are now on #PeerTube! If you use @merginmaps, the #opensource, field data collection tool built on #QGIS, you can now watch the video tutorials on #QwastTube: 🔗 […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 04/02/2026
All 60 videos from #QGIS for Hydrological Applications – 2nd Edition are now in the #Fediverse on #QwastTube! 🎉 Watch the full series here: videos.qwast-gis.com/c/qgishydro Follow my video posts here: @hansakwast@videos.qwast-gis.com Follow the #QGISHydro channel here: @qgishydro
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 30/01/2026
I’m launching #QwastTube: a #PeerTube‑based, privacy‑friendly alternative to my YouTube channel. If you care about digital sovereignty and open‑source GIS, this is for you. I’m still importing videos, but it’s already live: 👉 videos.qwast-gis.com […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 07/01/2026
🎉 New year, new #GIS skills! ⌨️ Learn scripting in #QGIS with my free course at @gisocw : no complex setup, just start from QGIS. Topics: :terminal: #GDAL #CLI :python: #Python basics :qgis: #PyQGIS with the Notebook plugin ✨ 👉 courses.gisopencourseware.org/cours…
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 30/12/2025
In 2025 I issued 146 official #QGIS certificates via #IHEDelft & #QWAST 🎉 Each certificate contributes €20 to QGIS, so learners collectively supported the project with €2,920 while investing in their own skills. More info […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 18/12/2025
Today, 28 MSc students in Water & Sustainable Development at #ihedelft received the official #QGIS certificate after successful completion of last month's modules. The winner of the theory quizzes received a signed copy of QGIS for Hydrological Applications […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 08/12/2025
This year's #30DayMapChallenge was a bit challenging due to my activities in November: 9 concerts, teaching, trips to Algeria and Morocco... Read the new blog on the #QWAST website on how I made each map. www.qwast-gis.com/l/30daymapchallen…
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 30/11/2025
#30DayMapChallenge Day 30 – Makeover Traveling today to Marrakech 🇲🇦 for a water trade mission, so I kept it simple. I revisited my Day 2 map and turned the Schie, Coolsingel & Goudsesingel back into water bodies 💧. Stronger blue infrastructure = better climate adaptation.
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 29/11/2025
#30DayMapChallenge Day 29: Raster #LiDAR DSMs often leave nodata voids at water bodies, breaking shadow modeling. For Rotterdam, I used the 0.5 m AHN4 DSM and filled gaps with my #QGIS script from the Resources Hub 👉 hub.qgis.org/scripts/4 (install via […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 28/11/2025
#30DayMapChallenge Day 28: Black On this Black Friday, I found today’s theme in the depths of the Black Sea 🌊. Using the OpenTopography DEM Downloader, I grabbed the Global Bathymetry SRTM15+ V2.1 dataset, calculated 100 m contours, and applied the Tanaka […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 27/11/2025
#30DayMapChallenge Day 27: Boundaries Today’s map shows the world’s transboundary aquifers using IGRAC’s 2025 dataset. These hidden water reserves cross national borders, reminding us that boundaries aren’t just lines on a map, they’re shared responsibilities […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 26/11/2025
#30DayMapChallenge Day 26: Transport 🚇 Still in Algeria, so I kept it simple: vector tiles via @maptiler.bsky.social + #OpenStreetMap in #QGIS to show public transport in Algiers. Highlight: the Algiers Metro, Africa’s 2nd metro after Cairo. Opened in 2011 […] [Original post on fosstodon.org]
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Hans van der Kwast :qgis: @hansakwast.fosstodon.org.ap.brid.gy · 25/11/2025
#30DayMapChallenge Day 25: Hexagons Busy with a water seminar organised by the Dutch embassy in Algiers, I had little time to map. So I turned to the HDX dataset of 400 m H3 hexagons and plotted the population density of the Netherlands in 2023. #GIS #QGIS #Cartography #OpenData #Netherlands
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