console.log('Downloading OpenFlights airports...');
let airports = new Promise((ok, ko) => d3.text('//static.redsift.io/thirdparty/openflights/airports.csv',
(err, d) => err ? ko(err) : ok(d)));
airports
.then(t => {
console.log('...Done');
// extract out a table of lat / longs
return d3.csvParseRows(t).map(e => [ Number(e[7]), Number(e[6]) ]);
})
.then(d => {
// generate random links from LHR(row 507)
let idxs = d.filter((e, i) => i % 600 === 0);
return { points: idxs, links: idxs.map(to => [ ...d[507], ...to]) };
})
.then(d => {
// d.points is an array to arrays where each entry represents a airport
// d.links is an array to arrays where each entry represents a link
let geo = d3_rs_geo.html()
.points(d.points)
.links(d.links)
.country(true)
.margin({ top: 0, left: 10, right: 240, bottom: 130});
d3.select('#world')
.datum('//static.redsift.io/thirdparty/topojson/examples/world-110m.json')
.call(geo);
})
.catch(e => console.log(e.stack));
View Compiled
