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 🖥️
Map projectionsh3-jsSymbolsThe draw() functionsquareProportional symbolsSpike markTypologyChoroplethLayout marksHandle geometriesSVG filters and clipTile markinsetsPath markText markInteractivityTooltipsLegendsCircle markRidgelines mapWhy it's better not to add scalebars to world mapsNight and dayPan and zoomCharging points for electric vehicles in ParisLet's design a "dot cartogram"Hello geovizWorld Population
Containers
{
let svg = viz.create({ domain: world }); // we create a container
svg.path({ datum: world, fill: "#38896F" }); // we do stuffs
return svg.render(); // we render the container
}
{
let svg = viz.create({ projection: d3.geoNaturalEarth1() }); // we create a container
svg.path({ datum: world, fill: "#38896F" }); // we do stuffs
return svg.render(); // we render the container
}
svg = {
let svg = viz.create({ projection: d3.geoAlbers() });
svg.path({ datum: world, fill: "#38896F" });
return svg;
}
svg.projection
svg.height
svg.bbox
{
let svg = viz.create({ domain: world });
svg.path({ datum: world, fill: "#38896F", fillOpacity: 0.5 });
svg
.append("circle")
.attr("cx", svg.width / 2) // Centered in x
.attr("cy", svg.height / 2) // Centerd in y
.attr("r", 10)
.attr("fill", "none")
.attr("stroke", "#38896F")
.attr("stroke-width", 5);
return svg.render();
}
{
let svg = viz.create({ domain: world, zoomable: [0.5, 2] });
svg.path({ datum: world, fill: "#38896F" });
return svg.render();
}
{
let svg = viz.create({
margin: 40, // Or [40,40,40,40]
background: "#d9fcff",
width: 400,
domain: world
});
svg.path({ datum: world, fill: "#38896F" });
return svg.render();
}
{
let svg = viz.create({
domain: chn,
margin: 10,
width: 400
});
svg.path({ datum: world, fill: "#38896F", fillOpacity: 0.3 });
svg.path({ datum: chn, fill: "#38896F" });
return svg.render();
}
{
let svg = viz.create({
domain: [aus, chn],
margin: 10,
width: 400
});
svg.path({ datum: world, fill: "#38896F", fillOpacity: 0.3 });
svg.path({ datum: aus, fill: "#38896F" });
svg.path({ datum: chn, fill: "#38896F" });
return svg.render();
}
{
let svg = viz.create({
domain: [
[-12, 20],
[43, 65]
],
width: 400
});
svg.path({ datum: world, fill: "#38896F" });
return svg.render();
}
viz.tool.addfonts([
{
fontFamily: "Courgette",
url: await FileAttachment("Courgette-Regular.ttf").url()
}
])
{
let svg = viz.create({ fontFamily: "Courgette", domain: world });
svg.path({ datum: world, fill: "#38896F", fillOpacity: 0.2 });
svg.text({ data: world, text: "Courgette", fill: "#38896F" });
svg.header({ text: "Courgette" });
svg.footer({ text: "Courgette" });
return svg.render();
}
d3 = require("d3", "d3-geo-projection@2", "d3-geo-polygon")
{
let svg = viz.create({
projection: d3.geoNaturalEarth1().rotate([longitude, latitude]),
width: 700
});
svg.outline();
svg.graticule({ stroke: "white" });
svg.path({ datum: world, fill: "#38896F" });
return svg.render();
}
container = viz.create({
projection: d3.geoNaturalEarth1(),
width: 700
})
countries = container.path({ datum: world, fill: "#38896F" })
outline = container.outline({ id: "outline" })
graticule = container.graticule({ id: "toto", stroke: "white" })
container.render({ order: [outline, graticule, countries] })
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