area: map/geographic coordinate system / Aaron Hill

Published

Edited

Sep 10, 2019

md`# area: map/geographic coordinate system`

chart = {

const svg = d3.select(DOM.svg(width, height))

.style("width", "40%")

.style("height", "auto")

.style("font", "10px sans-serif");

svg.selectAll("path")

.data(subunits.features)

.enter()

.append("path")

.attr("d", mapPath)

;

return svg.node();

}

projection = d3.geoMercator()

.center([-3, 40])

.scale([1300])

.translate([width/2,height/2])

;

mapPath = d3.geoPath()

.projection(projection)

;

width = 300

height = 300

subunits = topojson.feature(data, data.objects.subunits)

topojson = require("topojson-client@3")

data = d3.json("https://gist.githubusercontent.com"

+ "/aaronxhill/cc1ee2394eb7eb9e42b57a3e0f14e458"

+ "/raw/889e38c6dbcc6b4fcca0bdbce583a12131c6b0ca"

+ "/esp.json")

//https://gist.github.com/aaronxhill/cc1ee2394eb7eb9e42b57a3e0f14e458/raw/889e38c6dbcc6b4fcca0bdbce583a12131c6b0ca/esp.json

d3 = require("d3@5", "topojson")

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