2f:T113b,chart = { // Specify the chart’s dimensions. const width = 928; const height = width; const radius = width / 6; const data = table2Tree(samples, ["category", "subcategory"]); // Create the color scale. const color = d3.scaleOrdinal( d3.quantize(d3.interpolateRainbow, data.children.length + 1) ); // Compute the layout. const hierarchy = d3 .hierarchy(data) .sum((d) => d.value) .sort((a, b) => b.value - a.value); const root = d3.partition().size([2 * Math.PI, hierarchy.height + 1])( hierarchy ); root.each((d) => (d.current = d)); // Create the arc generator. 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)); // Create the SVG container. const svg = d3 .create("svg") .attr("viewBox", [-width / 2, -height / 2, width, width]) .style("font", "10px sans-serif"); // Append the arcs. const path = svg .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("pointer-events", (d) => (arcVisible(d.current) ? "auto" : "none")) .attr("d", (d) => arc(d.current)); // Make them clickable if they have children. path .filter((d) => d.children) .style("cursor", "pointer") .on("click", clicked); const format = d3.format(",d"); path.append("title").text( (d) => `${d .ancestors() .map((d) => d.data.name) .reverse() .join("/")}\n${format(d.value)}` ); const label = svg .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 = svg .append("circle") .datum(root) .attr("r", radius) .attr("fill", "none") .attr("pointer-events", "all") .on("click", clicked); // Handle zoom on click. function clicked(event, 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 = svg.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 ) .attr("pointer-events", (d) => (arcVisible(d.target) ? "auto" : "none")) .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})`; } return svg.node(); }30:[{"id":"e65374209781891f37dea1e7a6e1c5e020a3009b8aedf113b4c80942018887a1176ad4945cf14444603ff91d3da371b3b0d72419fa8d2ee0f6e815732475d5de","href":"https://static.observableusercontent.com/files/e65374209781891f37dea1e7a6e1c5e020a3009b8aedf113b4c80942018887a1176ad4945cf14444603ff91d3da371b3b0d72419fa8d2ee0f6e815732475d5de","name":"flare-2.json","type":"application/octet-stream","lastModified":1706147562052.574,"size":11634},{"id":"6b9cd5936e810611bf53be9805f58607b24625d09d3916d400082b4a5515d3a0b9ad35fd87a7405ad69dd734906a721e8f0ef1c112d94189e11b4f67e1cc3d85","href":"https://static.observableusercontent.com/files/6b9cd5936e810611bf53be9805f58607b24625d09d3916d400082b4a5515d3a0b9ad35fd87a7405ad69dd734906a721e8f0ef1c112d94189e11b4f67e1cc3d85","name":"samples@1.json","type":"application/json","lastModified":1706147562527.723,"size":3394},{"id":"b88067f0a8324a4338e85010aeb2a6f6e480fc026c691d5e0a818e048b53f50f8f000d0dd4ed122760216247d458229695cb623d09abe4a95f00562df9ed60cc","href":"https://static.observableusercontent.com/files/b88067f0a8324a4338e85010aeb2a6f6e480fc026c691d5e0a818e048b53f50f8f000d0dd4ed122760216247d458229695cb623d09abe4a95f00562df9ed60cc","name":"SamplesSummary2.csv","type":"text/csv","lastModified":1706314994880.565,"size":623}] 2d:{"title":"Zoomable sunburst","cells":[{"id":0,"value":"

Zoomable sunburst

D3 › Gallery

\n\n# Zoomable sunburst\n\nThis variant of a [sunburst diagram](/@d3/sunburst/2?intent=fork) shows only two layers of the hierarchy at a time. Click a node to zoom in, or the center to zoom out. Compare to an [icicle](/@d3/zoomable-icicle).","pinned":false,"hidden":false,"mode":"md"},{"id":7,"value":"$2f","pinned":true,"hidden":false,"mode":"ojs"},{"id":393,"value":"import { table2Tree } from \"@john-guerra/table-2-tree\"","pinned":true,"hidden":false,"mode":"ojs"},{"id":391,"value":"samples = FileAttachment(\"SamplesSummary2.csv\").csv({typed:true})","pinned":true,"hidden":false,"mode":"ojs"},{"id":3,"value":"//data = FileAttachment(\"samples@1.json\").json()","pinned":true,"hidden":false,"mode":"ojs"}],"files":"$W30","stdlib":"1","titling":"auto"}