md`# Region rings Berlin`
allCities = new Set(rawPaths.features.map(p => p.properties.dloc))
distances = rawPaths.features.filter(p => p.properties.dloc!=='Probe').filter(p => !turf.booleanContains(prbEnvelope, turf.point(p.geometry.coordinates[1]))).map(ls => {
// go ahead, mix strings and numbers in a json field!
let coords0 = ls.geometry.coordinates[0].map(i => Number(i));
let coords1 = ls.geometry.coordinates[1].map(i => Number(i));
return { srcLoc: ls.properties.sloc, dstLoc: ls.properties.dloc, coordinates: ls.geometry.coordinates[1], dist: turf.distance(coords0, coords1) }
})
prbEnvelope = turf.envelope(prbGeoJson);
turf.inside
[d3.min(distances, d => d.dist), d3.max(distances, d => d.dist), d3.mean(distances, d => d.dist)]
map = html`<svg viewBox="0 0 ${width} ${height}" style="display: block;">
<style>
.world { stroke: #eeeeee; stroke-width: 0.5; fill-opacity: 0.5 }
.hop-loc { fill: none; stroke-width: 1.5; stroke: black; }
.probe-loc { stroke-width: 2; stroke: none; fill: white; fill-opacity: 0.8 }
.l-path { fill: none; stroke-width: 2; stroke: lightBlue; }
.kreis { fill-opacity: 0.8; }
.bunch-of-lines { stroke: black; stroke-width: 0.4; fill: none; stroke-opacity: 0.6; }
</style>
<defs>
<path id="outline" d="${path(outline)}" />
<clipPath id="clip"><use xlink:href="${new URL("#outline", location)}" /></clipPath>
</defs>
<g class="world" clip-path="url(${new URL("#clip", location)})">
<use xlink:href="${new URL("#outline", location)}" fill="#fff" />
${land.features.map(l => `<path class="kreis" d="${path(l.geometry)}" style="fill: ${popKreisColor(l.properties.pop_density)}"></path>`)}
</g>
<g class="bunch-of-lines"><path d="${path(rawPaths)}"/></g>
<use xlink:href="${new URL("#outline", location)}" fill="none" stroke="#000" />
</svg>`
height = 1200
popKreisColor = d3.scaleLinear()
.domain([30, 580])
.range(["#ffffff", "#cccccc"])
.interpolate(d3.interpolateLab);
path = d3.geoPath(projection.scale(3150).rotate([-10,-57]))
projection = d3.geoMercator()
rawPaths = fetch("https://sg-pub.ripe.net/emile/ixp-country-jedi/specials/2019-08-22-Berlin/geopath/geopath.v4.json").then(d => d.json())
probes = fetch("https://sg-pub.ripe.net/emile/ixp-country-jedi/specials/2019-08-22-Berlin/probeset.json").then(d => d.json())
prbGeoJson = Object.assign({
type: 'FeatureCollection',
features: probes.map(p => ({
type: 'Feature',
geometry: {
type: 'Point',
coordinates: [p.lon, p.lat]
}
})
)
});
world = fetch("https://www-static.ripe.net/static/rnd-ui/openipmap/production/maps/country_deu_adm2.topo.json").then(r => r.json())
land = topojson.feature(world, world.objects["country_deu_adm2"])
outline = ({type: "Sphere"})
turf = require("https://npmcdn.com/@turf/turf@5.1.6/turf.js")
d3 = require("d3@5")
topojson = import("topojson-client@3")
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