Note
Click here to download the full example code
Symbol Cartogram¶
A symbol cartogram in which each US State is represented by a
(hexagon-shaped) symbol in a hexagon tiling grid.
Uses carto_flow.symbol_cartogram.create_symbol_cartogram
Load dataset and create cartogram.
import matplotlib
matplotlib.use("Agg")
import matplotlib.pyplot as plt
import carto_flow.data as examples
import carto_flow.symbol_cartogram as smb
us_states = examples.load_us_census(population=True)
# compute symbol cartogram
symbol_carto = smb.create_symbol_cartogram(
us_states,
layout=smb.GridBasedLayout(tiling=smb.HexagonTiling()),
)
Plot the cartogram.
p = symbol_carto.plot(
# color by population size
column="Population (Millions)",
# shrink the colorbar
legend_kwds={"shrink": 0.75},
# label all states
# we use the State abbreviation look-up table in the censusdis package
label=us_states["State Abbreviation"],
# set label color to white and use bold font
label_color="w",
label_kwargs={"fontweight": "bold"},
)
p.ax.set(title="Symbol Cartogram")
plt.tight_layout()
Total running time of the script: ( 0 minutes 3.796 seconds)
Download Python source code: plot_symbol_cartogram.py