bertin.js is an easy to use
JavaScript library mainly based on D3.js makes creating thematic maps
simple. The principle is to work with layers stacked on top of one
other. Much like in Geographic Information Software (GIS) software,
bertin.js displays layers with a specific hierarchy. The layer at
bottom are rendered and then followed by the layer right above it. Some
of the layers are used to display various components of a map, some of
common layers are: header, footer, graticule, outline, choro, typo,
prop, shadow, scalebar, text etc.
bertin package is a wrapper around bertin.js
You can install the development version of bertin from
GitHub with:
# install.packages("remotes")
remotes::install_github("riatelab/bertin")library(bertin)
library(sf)
world <- st_read(system.file("gpkg/world.gpkg", package = "bertin"),
layer = "world", quiet = TRUE)
bt_param(width = 800)|>
bt_layer(data = world, fill = "#808080") |>
bt_bubble(data = world, values = "pop", k = 20) |>
bt_draw() |>
bt_save("map.svg")
file: “map.svg”