Day 56. Glen Canyon in blue 🔹
A 3D model of Glen Canyon built from USGS 2m DEM data, using a blue-to-turquoise ramp instead of traditional terrain colours.
The geometry stays the same, but perception shifts as canyon structures emerge differently through colour.
Main challenge: balancing detail with browser performance on dense relief.
Workflow: QGIS → Qgis2threejs → Three.js.
🔗 https://maptheclouds.com/playground/30-day-map-challenge-2023/na-blue/
#100DayMapChallenge Day 56/100
Day 55. Biker Santa 🎅🏍️
A small holiday experiment turned into an open-source 3D web game.
Ride across Romanian terrain, reach targets, and drop gifts to score. The terrain is built from QGIS DEM data and rendered with Three.js/WebGL.
The bike follows a precomputed route with elevation, using curve orientation and a lightweight physics loop.
🔗 https://maptheclouds.com/biker-santa/
#100DayMapChallenge Day 55/100
#ThreeJS #WebGL #QGIS #Geospatial #CreativeCoding
Day 54. Dots ⚫⚪
A procedural shader turns a rotating Earth into a dynamic dot field.
~100,000 points are masked by a land texture, replacing flat fill with structured patterns. Ripple markers and arcs connect points over time, forming a small generative system.
Main challenge: controlling noise and preserving readable continents during motion.
Built with Three.js, WebGL, and custom GLSL.
🔗 https://maptheclouds.com/playground/30-day-map-challenge-2023/dots/
#100DayMapChallenge Day 54/100
#ThreeJS #WebGL #GLSL #Geospatial
Riccardo Klinger demonstrates how to build an independent #basemap pipeline from #OpenStreetMap data using #GDAL/#OGR and integrate the resulting #vectorTiles into the #Esri ecosystem. Open-source and proprietary tools turn out to complement each other seamlessly.
What’s new in #ArcGIS GeoAnalytics Engine 2.0 https://tinyurl.com/y4vx2svd
#bigdata #raster #imagery #spatial #analysis #GIS #esri #GISchat #geospatial @esri @esrifederalgovt @esrislgov @esritraining @urisa
Stefan Ziegler continues his series on #geoenabling #ApacheHop, this time adding #raster support to his hop-gdal-plugin. Stefan walks through an #ETL pipeline that computes building heights from LiDAR and vector data using new raster transforms (Raster Clip, Raster Zonal Stats) built on the newer #GDAL tool structure.
📚 Haven’t discovered our online materials yet? For example, you can learn what #opensource is and why it matters in Topic 1 from the FOSS4G Observatory Courses.
Topic 1 - Inside the World of Geospatial Open Source and Its Educational Initiative explores:
⚙️ What #geospatial #opensource software is
👥 Why it matters for developers, users & decision-makers
📚 How #education helps grow the #community
👉 Access the lesson: https://esa.pages.terrasigna.io/oss4geo/foss4g-docs/docs/topic-1-geospatial-open-source/
What’s new in #ArcGIS Solutions (March 2026) https://tinyurl.com/mrybmn83
#apps #govtech #GIS #esri #dataviz #mapping #GISchat #geospatial #ArcGISApps @esri @esrislgov @esritraining @arcgisapps @urisa
MapTheClouds
Spatialists
Derek Law
FOSS4G Observatory
💧🌏 Greg Cocks
geoObserver