How could I create map with colored countries?

maajdl · February 2, 2022, 8:49am

Hello

Below is the kind of maps I would like to draw.
The colors would be changing according to some data.
I would dream of making animated gif files on this basis.

Any idea how I coul proceed?

Thanks

Michel

rafael.guerra · February 2, 2022, 9:22am

GMT.jl can be used for this. See for instance the coast() function doc.

joa-quim · February 2, 2022, 1:28pm

See also
https://www.generic-mapping-tools.org/GMT.jl/dev/gallery/choropleths/choropleth_DCW/

rafael.guerra · February 2, 2022, 2:00pm

One quick example using GMT.jl:

Julia code

using GMT
coast(region=(-180, 180, -60, 80), proj=:merc,
    land=:white, water=:lightblue, figsize=15,
    shore=:thinnest,
    frame=(annot=20, grid=20,ticks=20),
    par=(FONT_ANNOT_PRIMARY=5,) 
)
c1 = (country=:US, pen=(0.1,:darkgreen), fill=:lightgreen)
c2 = (country=:RU, pen=(0.1,:red), fill=:pink)
countries = tuple(c1,c2)
coast!(DCW= countries, fmt=:png, show=true)

Mastomaki · February 2, 2023, 2:45pm

Is this possible with VegaLite.jl and Vegadatasets?

rafael.guerra · February 2, 2023, 3:01pm

@Mastomaki, there is one example here that could be a good starting point.