Published
Edited
Feb 24, 2020
data = d3.csvParse(await FileAttachment("all weeks-increased confirmed-no_hubei.csv").text(), (d, _, columns) => {
let total = 0;
for (let i = 1; i < columns.length; ++i) total += d[columns[i]] = +d[columns[i]];
d.total = total;
return d;
})
arc = d3.arc()
.innerRadius(d => y(d[0]))
.outerRadius(d => y(d[1]))
.startAngle(d => x(d.data.Province))
.endAngle(d => x(d.data.Province) + x.bandwidth())
.padAngle(0.01)
.padRadius(innerRadius)
x = d3.scaleBand()
.domain(data.map(d => d.Province))
.range([0, 2 * Math.PI])
.align(0)
y = {
// This scale maintains area proportionality of radial bars!
const y = d3.scaleLinear()
.domain([0, d3.max(data, d => d.total)])
.range([innerRadius * innerRadius, outerRadius * outerRadius]);
return Object.assign(d => Math.sqrt(y(d)), y);
}
z = d3.scaleOrdinal()
.domain(data.columns.slice(1))
.range(["#98abc5", "#8a89a6", "#7b6888", "#6b486b", "#a05d56", "#d0743c", "#ff8c00"])
xAxis = g => g
.attr("text-anchor", "middle")
.call(g => g.selectAll("g")
.data(data)
.join("g")
.attr("transform", d => `
rotate(${((x(d.Province) + x.bandwidth() / 2) * 180 / Math.PI - 90)})
translate(${innerRadius},0)
`)
.call(g => g.append("line")
.attr("x2", -5)
.attr("stroke", "#000"))
.call(g => g.append("text")
.attr("transform", d => (x(d.Province) + x.bandwidth() / 2 + Math.PI / 2) % (2 * Math.PI) < Math.PI
? "rotate(90)translate(0,16)"
: "rotate(-90)translate(0,-9)")
.text(d => d.Province)))
yAxis = g => g
.attr("text-anchor", "middle")
.call(g => g.append("text")
.attr("y", d => -y(y.ticks(5).pop()))
.attr("dy", "-1em")
.text("Virus Cases"))
.call(g => g.selectAll("g")
.data(y.ticks(5).slice(1))
.join("g")
.attr("fill", "none")
.call(g => g.append("circle")
.attr("stroke", "#000")
.attr("stroke-opacity", 0.5)
.attr("r", y))
.call(g => g.append("text")
.attr("y", d => -y(d))
.attr("dy", "0.35em")
.attr("stroke", "#fff")
.attr("stroke-width", 5)
.text(y.tickFormat(5, "s"))
.clone(true)
.attr("fill", "#000")
.attr("stroke", "none")))
legend = g => g.append("g")
.selectAll("g")
//.join(g.append('The Weekly Increase of Confirmed Cases in Provinces Outside Hubei')
.data(data.columns.slice(1).reverse())
.join("g")
.attr("transform", (d, i) => `translate(-40,${(i - (data.columns.length - 1) / 2) * 20})`)
.call(g => g.append("rect")
.attr("width", 18)
.attr("height", 18)
.attr("fill", z))
.call(g => g.append("text")
.attr("x", 24)
.attr("y", 9)
.attr("dy", "0.35em")
.text(d => d))
width = 800
height = width
margin = ({top: 30, right: 20, bottom: 80, left: 50});//Make bigger bottom margin for the color legend
innerRadius = 200
outerRadius = Math.min(width, height) / 2
d3 = require("d3@5")
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