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Cartoonish map styles with D3 and NaturalEarth
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <link rel="preconnect" href="https://fonts.googleapis.com"> | |
| <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin> | |
| <link href="https://fonts.googleapis.com/css2?family=Architects+Daughter&display=swap" rel="stylesheet"> | |
| <style> | |
| body { | |
| font-family: 'Architects Daughter', cursive; | |
| font-size: 4pt; | |
| margin: 0; | |
| } | |
| svg { | |
| border: 1px solid #666; | |
| } | |
| .country { | |
| stroke-width: 8; | |
| stroke-linejoin: round; | |
| fill-opacity: 0.33; | |
| } | |
| .city path{ | |
| fill: #33; | |
| } | |
| .country text { | |
| font-size: 120%; | |
| } | |
| text { | |
| fill: #666; | |
| fill-opacity: 1; | |
| stroke: none; | |
| text-anchor: middle; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <script src="https://d3js.org/d3.v7.min.js"></script> | |
| <script> | |
| var width = 1440, | |
| height = 800; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", width) | |
| .attr("height", height); | |
| svg.append("filter") | |
| .attr("id", "blur") | |
| .append("feGaussianBlur") | |
| .attr("in", "SourceGraphic") | |
| .attr("stdDeviation", 4); | |
| var defs = svg.append("defs"); | |
| Promise.all([ | |
| d3.json("https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_50m_admin_0_countries.geojson"), | |
| d3.json("https://d2ad6b4ur7yvpq.cloudfront.net/naturalearth-3.3.0/ne_50m_populated_places_simple.geojson"), | |
| ]).then( | |
| function([countrygeo, citygeo]) { | |
| let | |
| cities = citygeo.features.filter(d => | |
| d.megacity || d.properties.scalerank <= 2 | |
| ), | |
| a3s = cities.map(d => d.properties.adm0_a3), | |
| countries = countrygeo.features //.filter(d => a3s.includes(d.properties.adm0_a3)); | |
| let bounds = { | |
| type: "MultiPoint", | |
| coordinates: [[180, 0], [0, 65], [0, -55], [-160, 0]] | |
| } | |
| var projection = d3.geoEqualEarth() | |
| .fitSize([width, height], {type: 'FeatureCollection', features: countries}) | |
| .center([10,0]) | |
| //.center([0, 5]) | |
| //.scale(150) | |
| //.rotate([-180,0]); | |
| var path = d3.geoPath() | |
| .projection(projection); | |
| defs.selectAll("path") | |
| .data(countries) | |
| .enter().append("path") | |
| .attr("id", d => d.properties.adm0_a3) | |
| .attr("d", path) | |
| defs.selectAll("clipPath") | |
| .data(countries) | |
| .enter().append("clipPath") | |
| .attr("id", d => "inside-" + d.properties.adm0_a3) | |
| .append("use") | |
| .attr("xlink:href", d => "#" + d.properties.adm0_a3) | |
| let shapes = svg.append('g') | |
| .attr("class", "countries") | |
| .selectAll('.country') | |
| .data(countries) | |
| .enter().append('g') | |
| .attr("class", "country"); | |
| shapes | |
| .append("use") | |
| .attr("xlink:href", d => "#" + d.properties.adm0_a3) | |
| .attr("clip-path", d => `url(#inside-${d.properties.adm0_a3})`) | |
| .attr("filter", "url(#blur)") | |
| .style("stroke", d => d3.schemeTableau10[d.properties.mapcolor7]) | |
| .style("fill", d => d3.schemeTableau10[d.properties.mapcolor7]); | |
| /* | |
| shapes | |
| .append("text") | |
| .attr("transform", d => { | |
| let [x, y] = path.centroid(d.geometry); | |
| return `translate(${x}, ${y})`; | |
| }) | |
| .text(d => d.properties.name); | |
| */ | |
| let dots = svg.append('g') | |
| .attr("class", "cities") | |
| .selectAll(".city") | |
| .data(cities) | |
| .enter().append("g") | |
| .attr("class", "city") | |
| .attr('transform', d => { | |
| let [x, y] = projection(d.geometry.coordinates); | |
| return `translate(${x}, ${y})`; | |
| }) | |
| .datum(d => d.properties); | |
| dots.append('path') | |
| .attr("d", d => d3.symbol(d.adm0cap ? d3.symbolStar: d3.symbolCircle, 2*(3 - Math.sqrt(d.scalerank)))()); | |
| dots.append('text') | |
| .attr('dy', -2) | |
| .attr('font-size', d => (100-(1-d.adm0cap)*d.scalerank*10) + '%') | |
| .text(d => d.name); | |
| }); | |
| </script> | |
| </body> | |
| </html> |
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