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D3 v5 Zoomable Sunburst w/ Button
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license: mit |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<!DOCTYPE html> | |
<head> | |
<meta charset="utf-8"> | |
<title>D3 v5 Zoomable Sunburst w/ Button</title> | |
<script src="https://d3js.org/d3.v5.min.js"></script> | |
<script src="https://cdn.jsdelivr.net/npm/@observablehq/stdlib"></script> | |
<style> | |
body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
</style> | |
</head> | |
<body> | |
Ported from <a href="https://beta.observablehq.com/@mbostock/d3-zoomable-sunburst">this Observable notebook</a> for <a href="https://talk.observablehq.com/t/notebook-to-vanilla-javascript-steps/1644/5">this</a> forum thread.<br> | |
<input id="inputJSON" type="file" accept="application/json"><br> | |
<svg id="partitionSVG" width=960 height=960 viewBox="0 0 960 960"></svg> | |
<script> | |
const format = d3.format(",d"); | |
const width = 932; | |
const radius = width / 6; | |
const arc = d3.arc() | |
.startAngle(d => d.x0) | |
.endAngle(d => d.x1) | |
.padAngle(d => Math.min((d.x1 - d.x0) / 2, 0.005)) | |
.padRadius(radius * 1.5) | |
.innerRadius(d => d.y0 * radius) | |
.outerRadius(d => Math.max(d.y0 * radius, d.y1 * radius - 1)); | |
const partition = data => { | |
const root = d3.hierarchy(data) | |
.sum(d => d.size) | |
.sort((a, b) => b.value - a.value); | |
return d3.partition() | |
.size([2 * Math.PI, root.height + 1]) | |
(root); | |
} | |
const inputElement = document.querySelector('#inputJSON'); | |
inputElement.addEventListener('change', () => { | |
const url = URL.createObjectURL(inputElement.files[0]); | |
d3.json(url).then(data => { | |
console.log(data); | |
const root = partition(data); | |
const color = d3.scaleOrdinal().range(d3.quantize(d3.interpolateRainbow, data.children.length + 1)); | |
root.each(d => d.current = d); | |
const svg = d3.select('#partitionSVG') | |
.style("width", "100%") | |
.style("height", "auto") | |
.style("font", "10px sans-serif"); | |
const g = svg.append("g") | |
.attr("transform", `translate(${width / 2},${width / 2})`); | |
const path = g.append("g") | |
.selectAll("path") | |
.data(root.descendants().slice(1)) | |
.join("path") | |
.attr("fill", d => { | |
while (d.depth > 1) | |
d = d.parent; | |
return color(d.data.name); | |
}) | |
.attr("fill-opacity", d => arcVisible(d.current) ? (d.children ? 0.6 : 0.4) : 0) | |
.attr("d", d => arc(d.current)); | |
path.filter(d => d.children) | |
.style("cursor", "pointer") | |
.on("click", clicked); | |
path.append("title") | |
.text(d => `${d.ancestors().map(d => d.data.name).reverse().join("/")}\n${format(d.value)}`); | |
const label = g.append("g") | |
.attr("pointer-events", "none") | |
.attr("text-anchor", "middle") | |
.style("user-select", "none") | |
.selectAll("text") | |
.data(root.descendants().slice(1)) | |
.join("text") | |
.attr("dy", "0.35em") | |
.attr("fill-opacity", d => +labelVisible(d.current)) | |
.attr("transform", d => labelTransform(d.current)) | |
.text(d => d.data.name); | |
const parent = g.append("circle") | |
.datum(root) | |
.attr("r", radius) | |
.attr("fill", "none") | |
.attr("pointer-events", "all") | |
.on("click", clicked); | |
function clicked(p) { | |
parent.datum(p.parent || root); | |
root.each(d => d.target = { | |
x0: Math.max(0, Math.min(1, (d.x0 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI, | |
x1: Math.max(0, Math.min(1, (d.x1 - p.x0) / (p.x1 - p.x0))) * 2 * Math.PI, | |
y0: Math.max(0, d.y0 - p.depth), | |
y1: Math.max(0, d.y1 - p.depth) | |
}); | |
const t = g.transition().duration(750); | |
// Transition the data on all arcs, even the ones that aren’t visible, | |
// so that if this transition is interrupted, entering arcs will start | |
// the next transition from the desired position. | |
path.transition(t) | |
.tween("data", d => { | |
const i = d3.interpolate(d.current, d.target); | |
return t => d.current = i(t); | |
}) | |
.filter(function (d) { | |
return +this.getAttribute("fill-opacity") || arcVisible(d.target); | |
}) | |
.attr("fill-opacity", d => arcVisible(d.target) ? (d.children ? 0.6 : 0.4) : 0) | |
.attrTween("d", d => () => arc(d.current)); | |
label.filter(function (d) { | |
return +this.getAttribute("fill-opacity") || labelVisible(d.target); | |
}).transition(t) | |
.attr("fill-opacity", d => +labelVisible(d.target)) | |
.attrTween("transform", d => () => labelTransform(d.current)); | |
} | |
function arcVisible(d) { | |
return d.y1 <= 3 && d.y0 >= 1 && d.x1 > d.x0; | |
} | |
function labelVisible(d) { | |
return d.y1 <= 3 && d.y0 >= 1 && (d.y1 - d.y0) * (d.x1 - d.x0) > 0.03; | |
} | |
function labelTransform(d) { | |
const x = (d.x0 + d.x1) / 2 * 180 / Math.PI; | |
const y = (d.y0 + d.y1) / 2 * radius; | |
return `rotate(${x - 90}) translate(${y},0) rotate(${x < 180 ? 0 : 180})`; | |
} | |
}); | |
}); | |
</script> | |
</body> |
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