chart = {
const root = pack(data);
const svg = d3.create("svg")
.attr("viewBox", [0, 0, width, height])
.style("font", "10px sans-serif")
.style("overflow", "visible")
.attr("text-anchor", "middle");
const node = svg.append("g")
.attr("pointer-events", "all")
.selectAll("g")
.data(root.descendants())
.join("g")
.attr("transform", d => `translate(${d.x},${d.y})`);
node.append("circle")
.attr("r", d => d.r)
.attr("stroke", d => d.children ? "#bbb" : "none")
.attr("fill", d => d.children ? "none" : "#ddd");
const leaf = node.filter(d => !d.children);
leaf.select("circle")
.attr("id", d => (d.leafUid = DOM.uid("leaf")).id);
leaf.append("clipPath")
.attr("id", d => (d.clipUid = DOM.uid("clip")).id)
.append("use")
.attr("xlink:href", d => d.leafUid.href);
leaf.append("text")
.attr("clip-path", d => d.clipUid)
.selectAll("tspan")
.data(d => d.data.name.split(/(?=[A-Z][^A-Z])/g))
.join("tspan")
.attr("x", 0)
.attr("y", (d, i, nodes) => `${i - nodes.length / 2 + 0.8}em`)
.text(d => d);
node.append("title")
.text(d => `${d.ancestors().map(d => d.data.name).reverse().join("/")}
${d.value.toLocaleString()}`);
return svg.node();
}
///data = FileAttachment("Formularyscraped@3.json").json()
data = d3.json("https://raw.githubusercontent.com/fergustaylor/dev/master/antibiotics/Formulary.json")
pack = data => d3.pack()
.size([width, height])
.padding(3)
(d3.hierarchy(data)
.sum(d => d.value)
.sort((a, b) => b.value - a.value))
width = 975
height = width
d3 = require("d3@5")
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