This interrupted sinusoidal projection is available as d3.geoInterruptedSinusoidal in d3-geo-projection. The asymmetrical lobe boundaries emphasize land masses over oceans, after the Swedish Nordisk Världs Atlas as reproduced by C.A. Furuti.
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Interrupted Sinusoidal
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license: gpl-3.0 | |
border: no | |
height: 484 | |
redirect: https://observablehq.com/@d3/interrupted-sinusoidal |
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<!DOCTYPE html> | |
<meta charset="utf-8"> | |
<style> | |
.stroke { | |
fill: none; | |
stroke: #000; | |
stroke-width: 3px; | |
} | |
.fill { | |
fill: #fff; | |
} | |
.graticule { | |
fill: none; | |
stroke: #777; | |
stroke-width: 0.5px; | |
stroke-opacity: 0.5; | |
} | |
.land { | |
fill: #222; | |
} | |
.boundary { | |
fill: none; | |
stroke: #fff; | |
stroke-width: 0.5px; | |
} | |
</style> | |
<svg width="960" height="484"></svg> | |
<script src="//d3js.org/d3.v4.min.js"></script> | |
<script src="//d3js.org/d3-geo-projection.v1.min.js"></script> | |
<script src="//d3js.org/topojson.v1.min.js"></script> | |
<script> | |
var svg = d3.select("svg"), | |
width = +svg.attr("width"), | |
height = +svg.attr("height"); | |
var projection = d3.geoInterrupt(d3.geoSinusoidalRaw, | |
[[ // northern hemisphere | |
[[-180, 0], [-110, 90], [ -40, 0]], | |
[[ -40, 0], [ 0, 90], [ 40, 0]], | |
[[ 40, 0], [ 110, 90], [ 180, 0]] | |
], [ // southern hemisphere | |
[[-180, 0], [-110, -90], [ -40, 0]], | |
[[ -40, 0], [ 0, -90], [ 40, 0]], | |
[[ 40, 0], [ 110, -90], [ 180, 0]] | |
]]) | |
.rotate([-20, 0]) | |
.scale(152.63) | |
.translate([width / 2, height / 2]) | |
.precision(0.1); | |
var graticule = d3.geoGraticule(); | |
var path = d3.geoPath() | |
.projection(projection); | |
var defs = svg.append("defs"); | |
defs.append("path") | |
.datum({type: "Sphere"}) | |
.attr("id", "sphere") | |
.attr("d", path); | |
defs.append("clipPath") | |
.attr("id", "clip") | |
.append("use") | |
.attr("xlink:href", "#sphere"); | |
svg.append("use") | |
.attr("class", "stroke") | |
.attr("xlink:href", "#sphere"); | |
svg.append("use") | |
.attr("class", "fill") | |
.attr("xlink:href", "#sphere"); | |
svg.append("path") | |
.datum(graticule) | |
.attr("class", "graticule") | |
.attr("clip-path", "url(#clip)") | |
.attr("d", path); | |
d3.json("/mbostock/raw/4090846/world-50m.json", function(error, world) { | |
if (error) throw error; | |
svg.insert("path", ".graticule") | |
.datum(topojson.feature(world, world.objects.land)) | |
.attr("class", "land") | |
.attr("clip-path", "url(#clip)") | |
.attr("d", path); | |
svg.insert("path", ".graticule") | |
.datum(topojson.mesh(world, world.objects.countries, function(a, b) { return a !== b; })) | |
.attr("class", "boundary") | |
.attr("clip-path", "url(#clip)") | |
.attr("d", path); | |
}); | |
</script> |
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