Published
Edited
Jun 13, 2021
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map = html`<svg viewBox="0 0 ${width} ${height}" style="display: block;">
<defs>
<path id="outline" d="${path(outline)}" />
<clipPath id="clip"><use xlink:href="${new URL("#outline", location)}" /></clipPath>
</defs>
<g clip-path="url(${new URL("#clip", location)})">
<use xlink:href="${new URL("#outline", location)}" fill="#fff" />
<path d="${path(graticule)}" stroke="#ccc" fill="none"></path>
<path d="${path(land)}"></path>
</g>
<use xlink:href="${new URL("#outline", location)}" fill="none" stroke="#000" />
</svg>`
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path = d3.geoPath(projection)
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height = {
const [[x0, y0], [x1, y1]] = d3.geoPath(projection.fitWidth(width, outline)).bounds(outline);
const dy = Math.ceil(y1 - y0), l = Math.min(Math.ceil(x1 - x0), dy);
projection.scale(projection.scale() * (l - 1) / l).precision(0.2);
return dy;
}
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outline = ({type: "Sphere"})
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graticule = d3.geoGraticule10()
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land = topojson.feature(world, world.objects.land)
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world = FileAttachment("land-50m.json").json()
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topojson = require("topojson-client@3")
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d3 = require("d3-geo@2", "d3-geo-projection@3")
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import {projectionInput} from "@d3/projection-comparison"
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