Hi. I'm Nicolas Lambert, research engineer in geographic information science at CNRS (France). My job is to draw maps and teach cartography at the university. I am a geographer 🌎, and not really a developer 🖥️
Hello Bertin.jsmatch and mergeprop symbolstextstypochoroplethmushroomInputs.table + bertin.jsquickdraw & table2geodorling cartogramprojectionssymbolsspikesstock + chorostock + typolinksthicknessmercator tilesbertin.js: Tooltipsregular bubble (Points Bertin)bertin.js: official logo 😎dot density mapdeal with with geojson propertiesLayer types in brieflocation map (minimap)prop squaresWaterlinesregular squaresRegular gridSeveral Ways to Represent Dead and Missing Migrants in the Mediterranean with bertinSmoothCombine bertin with plot and d3jsCheat sheet bertinLet's play with viewofRidgeSVG paths & patternsDisplay and hide layers with BertinUpdate layers with bertinbertin globe view
dot cartogram
map = bertin.draw({
params: { projection: d3.geoBertin1953() },
layers: [
{
type: "dotcartogram",
geojson: data,
onedot: onedot,
iteration: iteration,
values: "gdp",
radius: radius,
span: span,
leg_fill: "none",
leg_stroke: "black",
leg_strokeWidth: 1.5,
leg_x: 800,
leg_y: 450,
leg_title: `GDP in billion`,
fill: {
type: "typo",
values: "region",
leg_x: 700,
leg_y: 400,
leg_strokeWidth: 0.1
},
tooltip: ["$name", "$region"]
},
{
geojson: data,
fillOpacity: 0.35,
fill: "white",
stroke: "none"
},
{
type: "graticule"
},
{
type: "outline"
}
]
})
bertin.draw({
params: { projection: d3.geoBertin1953() },
layers: [
{ type: "header", text: "World Population in 2022" },
{
type: "dotcartogram",
geojson: data2,
values: "pop2020",
onedot: onedot2 * 1000000,
span: span2,
fill: "#0e0f2e",
radius: radius2,
leg_title: `Population in 2020`,
leg_txt: `${onedot2} million inh.`,
leg_x: 700,
leg_y: 450
},
{
geojson: geom,
fillOpacity: 0.35,
fill: "white",
stroke: "none"
},
{
type: "graticule"
},
{
type: "outline"
}
]
})
d3 = require("d3@7", "d3-geo-projection@4")
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