Day 7: Taal Volcano PHIL-LiDAR at 1 m, processed with PDAL for morphology and hazard context. Week 1 of GIS foundations closes here. #100DayMapChallenge.
Day 5: Point Clouds Cross Borders – Dublin LiDAR (2020)
Day 5: NYU Dublin LiDAR, 500M+ points, same PDAL pipeline as Yosemite in an urban context. Geography is local. The tools are global. #100DayMapChallenge.
Day 3: Nearly 25 Million Points in a Single File – PDAL Yosemite
Day 3: PDAL and Entwine on Yosemite Valley LiDAR. 570 million points, JSON pipelines, Potree visualization. Processing took 19 hours. #100DayMapChallenge.
Day 2: Mapping Walls You Can’t See From Above – Yosemite LiDAR
Yosemite Valley climbing walls from 0.5 m airborne LiDAR: slope analysis above 75°, flow direction for wall height, yellow-to-red classification. Day 2 of #100DayMapChallenge.
Closing One Chapter, Opening Another: #100DayMapChallenge
It is the end of an era, and the beginning of a new one. Starting February 9, I am launching #100DayMapChallenge: 100 days revisiting the projects that shaped my transition from traditional GIS to interactive 3D visualization.
Autumn 🍂
#30DayMapChallenge Day 2. Lines Autumn – coloring streams by their flow order in QGIS 🍂 Here’s one of the maps I have made for the #30DayMapChallenge on Twitter in 2021. You can find out more about the challenge and my…
3D hexagons in QGIS – A tutorial in pictures
This is a tutorial about deriving 3D hexagons from an elevation model in QGIS and visualizing them in Threejs using Qgis2threejs. During the #30DayMapChallenge 2021 on Twitter, when I was preparing the map for day 5, Hexagons, I wanted to…
LiDAR PDAL Experiments – Dublin
Those are my notes on taking some LiDAR data and testing different commands in PDAL. If you like, you can follow along using your own data. Most probably I’ll de adding or deleting stuff, but you can take a look…
LiDAR PDAL Experiments – Yosemite Valley
Those are my notes on taking some LiDAR data and testing different commands in PDAL. If you like, you can follow along using your own data. Most probably I’ll de adding or deleting stuff, but you can take a look…
LiDAR PDAL Experiments – Taal Volcano
Those are my notes on taking some LiDAR data and testing different commands in PDAL. If you like, you can follow along using your own data. Probably I’ll de adding or deleting stuff, but you can take a look to…