Published
Edited
Jul 21, 2021
md`### Projection`
height = 700
projection = d3
.geoAlbers()
.rotate([-1 * nh_long])
.center([0, nh_lat])
.scale(width * 15)
.parallels([42.5, 45])
.translate([width / 2, height / 1.25])
path = d3.geoPath(projection)
center_NAP_long = -75.0
center_NAP_lat = 43.25
nh_long = -71.5724
nh_lat = 43.1939
md`### Color Scale`
color_scale = {
const max = d3.max(bb_submissions, d => +d.properties.Max_UPLOAD);
const min = d3.min(bb_submissions, d => +d.properties.Max_UPLOAD);
console.log("min", min, "max", max);
return d3
.scaleSequential(d3.interpolateRdBu)
.domain([twenty_fifth, seventy_fifth]);
}
seventy_fifth = {
return d3.quantile(
d3.map(bb_submissions, d => +d.properties.Max_UPLOAD),
.75
);
}
twenty_fifth = {
return d3.quantile(
d3.map(bb_submissions, d => +d.properties.Max_UPLOAD),
.25
);
}
md`### Data`
broadband = FileAttachment("bbspeedtests.json").json()
bb_features = broadband.features.filter(d => d.geometry != null)
bb_submissions = bb_features.map(function(d) {
return { position: d.geometry.coordinates, properties: d.properties };
})
towns = FileAttachment("towns_unproj.json").json()
md`### Imports`
d3 = require("d3@6")
import { legend, swatches } from "@d3/color-legend"
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