Brenta Flow

On a black background are many many, small wiggly lines, the lines are coloured by the direction in which they go, using a circular colour map. If you know that the lines depict where water would flow over a landscape, and that the colours correspond to the direction, one can see how this does resemble terrain, with lower elevations and river valleys depicted as empty space, and ridges are where the lines of different colours meet. It is messy and quite abstract — Brenta Flow: Where water flows across Parco naturale dell'Adamello-Brenta

projection	UTM Zone 33N
tools	Python libraries: `geopandas`, `cartopy`, `xarray`, `shapely`, `shapelysmooth` and `matplotlib`
font	Deja Vu Sans Mono
comments	Best viewed on a large screen. The lines could perhaps be a little bit thinner. Also, my code for running this was very inefficient. I can't remember how many lines there are, but there are a lot (of the order of 50,000), and my code was only partially vectorized. The line smoothing taubin smoothing, helped make it look more flowly. Things to try: a grayscale/opacity circular colormap or incorporating a hillshade to really make the underlying terrain obvious
date	20/01/2024