Plot 52Mio Overture Maps places with datashader in Python

overturemaps_places_plot_datashader.py

import geopandas as gpd
import datashader as ds
from colorcet import fire

# download the data before with:
# overturemaps download -f geoparquet --type=place -o places.parquet
gdf = gpd.read_parquet("places.parquet") # takes 3 mins on my M3

# plotting takes 1 min 
cvs = ds.Canvas(plot_width=2000, plot_height=1000)
agg = cvs.points(gdf, geometry='geometry')
img = ds.tf.shade(agg, cmap=fire, how='log')

# display the image in Jupyter
img

# see the plot here:
#