MBA Candidate at Columbia, Software Engineer, Former Managing Web Editor @ The Michigan Daily. Building things I can see.
voronoiStateFeatures = topojson.feature(
voronoiStateTopojson,
voronoiStateTopojson.objects.states
)
colorList = {
const colors = d3.schemeCategory10;
const stateGeoms = voronoiStateTopojson.objects.states.geometries;
const colorList = stateGeoms.map(d => '');
const neighbors = topojson.neighbors(stateGeoms);
stateGeoms.forEach((d, i) => {
const color =
colors.find(
c =>
!neighbors[i].some(n => {
return colorList[n] === c;
})
) || colors[0];
colors.push(colors.shift());
colorList[i] = color;
});
return colorList;
}
countryShape = topojson.merge(
us,
us.objects.states.geometries.filter(d => d.id !== "02" && d.id !== "15")
)
voronoiStateTopojson = topojson.topology({ states: voronoiStates })
voronoiStates = {
const vs = stateAbbrs.map(s =>
topojson.merge(
voronoiTopojson,
voronoiTopojson.objects.voronoi.geometries.filter(
d => d.properties.site.properties.state == s
)
)
);
return {
type: "GeometryCollection",
geometries: vs.map(d => ((d.properties = {}), d))
};
// vs.forEach((_, i) => vs.color = stateAbbrs[i])
}
voronoiTopojson = topojson.topology({voronoi: voronoiGeojson})
voronoiGeojson = d3.geoVoronoi().polygons(data)
stateAbbrs = [...new Set(data.map(d => d.properties.state))]
data = d3.csvParse(await FileAttachment("airports.csv").text(), d => ({
type: "Feature",
properties: fixMap.has(d.name) ? { ...d, state: fixMap.get(d.name) } : d,
geometry: {
type: "Point",
coordinates: [+d.longitude, +d.latitude]
}
}))
fixMap = new Map([
['Fairchild AFB', 'WA'],
['Minot AFB', 'ND'],
['Grand Forks AFB', 'ND'],
['Ellsworth AFB', 'SD'],
['MC Clellan-Palomar Airport', 'CA'],
['Hilton Head', 'SC'],
['Marquette County Airport', 'MI'],
['University Park', 'PA']
])
projection = d3.geoAlbers().scale(1300).translate([487.5, 305])
us = FileAttachment("states-albers-10m.json").json()
topojson = require("topojson")
d3 = require.alias({"d3-array": "d3@6", "d3-delaunay": "d3@6", "d3-geo": "d3@6"})("d3@6", "d3-geo-voronoi@1")
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