Some obscure CartoCSS techniques by STAMEN’ Director of Technology, Seth Fitzsimmons. Two years old slides, but still quite useful.
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There’s a bunch of different ways to generate contour lines  from scatter data, each of them based on different interpolation algorithms. Like KNN , ID...
0. What’s this and what’s not
Last years have seen the rise of data sources with IoT, AoT, mobile devices, beacons, etc. The study of this data can be quite profitable, but there are laws...
First of all, what is an isovist? It’s simply the same as a viewshed… and what the heck is a viewshed? Let’s go to the Wikipedia:
To write te article Spies in the sky, the authors needed a multi-step analysis, explained here
If you want to work with official buildings data in Spain, you can go to Sede Electrónica del Catastro and download the public available vector there. Within...