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 🖥️
<html>
<body>
<svg viewBox="0 0 500 60" style="background-color:#CCC">
<circle cx="50" cy="30" r="25" fill="#e04a28"/>
<rect x="100" y="5" height="50" width="50" fill="#5277bf"/>
</svg>
</body>
</html>
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, 500, 60])
.style("background-color", "#CCC");
svg
.append("circle")
.attr("cx", 50)
.attr("cy", 30)
.attr("r", 25)
.style("fill", "#e04a28");
svg
.append("rect")
.attr("x", 100)
.attr("y", 5)
.attr("height", 50)
.attr("width", 50)
.style("fill", "#5277bf");
return svg.node();
}
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, 500, 60])
.style("background-color", "#CCC");
svg.append("circle").attr("id", "mycircle");
svg.append("rect").attr("class", "mysquare");
let mysquare2 = svg.append("rect");
svg
.select("#mycircle")
.attr("fill", "#5277bf")
.attr("cx", 50)
.attr("cy", 30)
.attr("r", 25);
svg
.select(".mysquare")
.attr("fill", "#e04a28")
.attr("height", 50)
.attr("width", 50)
.attr("x", 100)
.attr("y", 5);
mysquare2
.attr("stroke", "#3c803f")
.attr("stroke-width", 2)
.attr("height", 30)
.attr("width", 30)
.attr("x", 180)
.attr("y", 15);
return svg.node();
}
myData = [10, 30, 20, 30, 25]
{
const width = 500;
const height = 75;
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("background-color", "#CCC");
svg
.append("g")
.attr("fill", "#e04a28")
.selectAll("circle")
.data(myData)
.join("circle")
.attr("cx", (d, i) => 50 + i * 100)
.attr("cy", height / 2)
.attr("r", (d) => d);
return svg.node();
}
viewof play = Inputs.button("Play")
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, 500, 60])
.style("background-color", "#CCC");
let moncercle = svg
.append("circle")
.attr("cx", 50)
.attr("cy", 30)
.attr("r", 25)
.attr("fill", "#e04a28");
if (play) {
moncercle
.transition()
.duration(2000)
.attr("cx", 450)
.transition()
.delay(2000)
.duration(3000)
.attr("cx", 50)
.attr("r", 10)
.attr("fill", "blue")
.transition()
.attr("r", 25)
.attr("fill", "#e04a28");
}
return svg.node();
}
{
let width = 500;
let height = 75;
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("background-color", "#CCC");
svg
.append("g")
.attr("fill", "#e04a28")
.selectAll("circle")
.data(myData)
.join("circle")
.attr("cx", (d, i) => 50 + i * 100)
.attr("cy", height / 2)
.attr("r", 10);
if (play2) {
svg
.selectAll("circle")
.transition()
.duration(2000)
.attr("r", (d) => d);
}
return svg.node();
}
{
let width = 500;
let height = 75;
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("background-color", "#CCC");
let tooltip = svg.append("g").append("text").text("");
svg
.append("g")
.attr("fill", "#e04a28")
.selectAll("circle")
.data(myData)
.join("circle")
.attr("cx", (d, i) => 50 + i * 100)
.attr("cy", height / 2)
.attr("r", (d) => d)
.attr("fill", "#e04a28")
.on("touchmove mousemove", function (e, d) {
d3.select(this)
.transition()
.duration(500)
.attr("fill", "#26374a")
.attr("r", 25)
.style("cursor", "pointer");
d3.select("#info").text(`Le cercle sélectionné a un rayon de ${d}`);
})
.on("touchend mouseleave", function (event, d) {
d3.select(this)
.transition()
.attr("fill", "#e04a28")
.attr("r", (d) => d);
d3.select("#info").text("");
});
// Tooltip
let info = svg
.append("g")
.append("text")
.attr("id", "info")
.attr("font-family", "sans-serif")
.attr("font-size", 7)
.attr("fill-opacity", 1)
.attr("x", 2)
.attr("y", 8)
.text("");
return svg.node();
}
sipri = FileAttachment("sipri.csv").csv({ typed: true })
test = {
// Dimensions du graphique et marges
const width = 928;
const height = 500;
const marginTop = 30;
const marginRight = 0;
const marginBottom = 30;
const marginLeft = 70;
// document svg
const svg = d3.create("svg").attr("viewBox", [0, 0, width, height]);
// Axe des x
var x = d3
.scaleBand()
.domain(sipri.map((d) => d.Supplier))
.range([marginLeft, width - marginRight])
.padding(0.1);
svg
.append("g")
.attr("transform", `translate(0,${height - marginBottom})`)
.call(d3.axisBottom(x).tickSizeOuter(0));
// Axe des y
const y = d3
.scaleLinear()
.domain([0, d3.max(sipri, (d) => d.TIV20202024)])
.range([height - marginBottom, marginTop]);
svg
.append("g")
.attr("transform", `translate(${marginLeft},0)`)
.call(d3.axisLeft(y).tickFormat((y) => (y * 100).toFixed()))
.call((g) => g.select(".domain").remove())
.call((g) =>
g
.append("text")
.attr("x", -marginLeft)
.attr("y", 10)
.attr("fill", "currentColor")
.attr("text-anchor", "start")
.text("↑ TIV of arms exports (2020-2022)")
);
// Dessin des rectangles
svg
.append("g")
.attr("fill", "#55a37c")
.selectAll()
.data(sipri)
.join("rect")
.attr("x", (d) => x(d.Supplier))
.attr("y", (d) => y(d.TIV20202024))
.attr("height", (d) => y(0) - y(d.TIV20202024))
.attr("width", x.bandwidth());
return svg.node();
}
world = FileAttachment("countries.json").json()
projection = d3.geoNaturalEarth1()
width
height = 500
path = d3.geoPath(projection)
sphere = ({ type: "Sphere" })
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("width", "100%")
.style("height", "auto");
// La sphère
svg
.append("g")
.append("path")
.datum(sphere)
.attr("fill", " #a9daeb")
.attr("d", path); // En SVG, l'attribut d définit un tracé à dessiner
// Les graticules
svg
.append("g")
.append("path")
.datum(d3.geoGraticule10())
.attr("d", path) // En SVG, l'attribut d définit un tracé à dessiner
.style("fill", "none")
.style("stroke", "white")
.style("stroke-width", 0.8)
.style("stroke-opacity", 0.5)
.style("stroke-dasharray", 2);
// DATUM
svg
.append("g")
.append("path")
.datum(world) // Datum lit le tableau de données d'un coup => affiche tout de la même façon.
.attr("fill", "#508bab")
.attr("fill-opacity", 0.9)
.attr("stroke", "white")
.attr("stroke-width", 0.2)
.attr("d", path); // En SVG, l'attribut d définit un tracé à dessiner
return svg.node();
}
regions = FileAttachment("regions.csv").csv()
types = Array.from(new Set(regions.map((d) => d["Region Code"])))
colors_typo = d3.schemeTableau10.slice(0, 5).concat("white")
getcolor = d3.scaleOrdinal().domain(types).range(colors_typo)
getcolor("Africa")
cols = new Map(regions.map((d) => [d.ISO3, getcolor(d["Region Code"])]))
cols.get("FRA")
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("width", "100%")
.style("height", "auto");
// La sphère
svg
.append("g")
.append("path")
.datum(sphere)
.attr("fill", " #a9daeb")
.attr("d", path);
// Les graticules
svg
.append("g")
.append("path")
.datum(d3.geoGraticule10())
.attr("d", path)
.style("fill", "none")
.style("stroke", "white")
.style("stroke-width", 0.8)
.style("stroke-opacity", 0.5)
.style("stroke-dasharray", 2);
svg
.append("g")
//.attr("fill", "white")
.selectAll("path")
.data(world.features) // data lit chaque features pour itérer dessus
.join("path")
.attr("stroke", "white")
.attr("stroke-width", 0.5)
.attr("fill", (d) => cols.get(d.properties.ISO3))
.attr("d", path);
return svg.node();
}
Swatches(d3.scaleOrdinal(types, colors_typo))
gdpppc = FileAttachment("gdpppc.csv").csv({ typed: true })
quantile = d3
.scaleQuantile()
.domain(gdpppc.map((d) => d.gdppc2018))
.range(d3.schemeReds[6])
colbyid = new Map(gdpppc.map((d) => [d.id, quantile(d.gdppc2018)]))
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("width", "100%")
.style("height", "auto");
// La sphère
svg
.append("g")
.append("path")
.datum(sphere)
.attr("fill", " #a9daeb")
.attr("d", path);
// Les graticules
svg
.append("g")
.append("path")
.datum(d3.geoGraticule10())
.attr("d", path)
.style("fill", "none")
.style("stroke", "white")
.style("stroke-width", 0.8)
.style("stroke-opacity", 0.5)
.style("stroke-dasharray", 2);
svg
.append("g")
.selectAll("path")
.data(world.features)
.join("path")
.attr("stroke", "white")
.attr("stroke-width", 0.5)
.attr("fill", (d) =>
colbyid.get(d.properties.ISO3) == undefined
? "white"
: colbyid.get(d.properties.ISO3)
)
.attr("d", path);
return svg.node();
}
Legend(
d3.scaleQuantile(
gdpppc.map((d) => Math.round(d.gdppc2018)),
d3.schemeReds[6]
),
{
title: "PIB par habitant en 2018"
}
)
gdp = FileAttachment("gdp2018.csv").csv({ typed: true })
Inputs.table(gdp)
rayon = d3.scaleSqrt([0, d3.max(gdp, (d) => d.pib2018)], [0, size])
// To put circles in the largest polygon (from @xangregg/proportional-geographic-scatterplot-by-country)
largestPolygon = function (d) {
var best = {};
var bestArea = 0;
d.geometry.coordinates.forEach(function (coords) {
var poly = { type: "Polygon", coordinates: coords };
var area = d3.geoArea(poly);
if (area > bestArea) {
bestArea = area;
best = poly;
}
});
return best;
}
coordsbyid = new Map(
world.features
.map((d) => {
d.properties.position = d3.geoCentroid(
d.geometry.type == "Polygon" ? d : largestPolygon(d)
);
return d;
})
.map((d) => [d.properties.ISO3, projection(d.properties.position)])
)
Type JavaScript, then Shift-Enter. Ctrl-space for more options. Arrow ↑/↓ to switch modes.
{
const svg = d3
.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("width", "100%")
.style("height", "auto");
// La sphère
svg
.append("g")
.append("path")
.datum(sphere)
.attr("fill", " #a9daeb")
.attr("d", path);
// Les graticules
svg
.append("g")
.append("path")
.datum(d3.geoGraticule10())
.attr("d", path)
.style("fill", "none")
.style("stroke", "white")
.style("stroke-width", 0.8)
.style("stroke-opacity", 0.5)
.style("stroke-dasharray", 2);
// Les pays
svg
.append("g")
.selectAll("path")
.data(world.features)
.join("path")
.attr("stroke", "white")
.attr("stroke-width", 0.5)
.attr("fill", "#d6b987")
.attr("d", path);
// Les cercles
svg
.append("g")
.attr("fill", "#e04a28")
.attr("fill-opacity", 0.9)
.attr("stroke", "#fff")
.attr("stroke-width", 0.5)
.selectAll("circle")
.data(gdp.sort((a, b) => d3.descending(a.pib2018, b.pib2018)))
.join("circle")
.attr("transform", (d) => `translate(${coordsbyid.get(d.id)})`)
.attr("r", (d) => rayon(d.pib2018));
return svg.node();
}
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