Posts by Year


Fast contour lines using plain PostGIS

6 minute read

There’s a bunch of different ways to generate contour lines [1] from scatter data, each of them based on different interpolation algorithms. Like KNN [2], ID...


Advanced CartoCSS Techniques

less than 1 minute read

Some obscure CartoCSS techniques by STAMEN’ Director of Technology, Seth Fitzsimmons. Two years old slides, but still quite useful.