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circle pack with file input
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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.
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <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/@tasqon/d3-circle-packing">this Observable notebook</a> for <a href="https://talk.observablehq.com/t/notebook-to-vanilla-javascript-steps/1644/5">this</a> forum thread.<br> | |
| <svg id="packSVG" width=932 height=932 viewBox="0,0,932,932"></svg> | |
| <script> | |
| const color = d3.scaleSequential(d3.interpolateMagma).domain([8, 0]); | |
| const format = d3.format(",d"); | |
| const width = 932; | |
| const height = width; | |
| const pack = data => d3.pack() | |
| .size([width - 2, height - 2]) | |
| .padding(3) | |
| (d3.hierarchy(data) | |
| .sum(d => d.size) | |
| .sort((a, b) => b.value - a.value)); | |
| const {DOM, require} = new observablehq.Library; | |
| require()('@observablehq/flare') | |
| .then(data => { | |
| const root = pack(data); | |
| const svg = d3.select('#packSVG') | |
| .style("font", "10px sans-serif") | |
| .style("width", "100%") | |
| .style("height", "auto") | |
| .attr("text-anchor", "middle"); | |
| const node = svg.selectAll("g") | |
| .data(root.descendants()) | |
| .enter().append("g") | |
| .attr("transform", d => `translate(${d.x + 1},${d.y + 1})`); | |
| node.append("circle") | |
| .attr("r", d => d.r) | |
| .attr("fill", d => color(d.height)); | |
| const leaf = node.filter(d => !d.children); | |
| leaf.select("circle") | |
| .attr("id", d => (d.leafUid = DOM.uid("leaf")).id) | |
| .attr("stroke", "#000"); | |
| 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)) | |
| .enter().append("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("/")}\n${format(d.value)}`); | |
| }); | |
| </script> | |
| </body> |
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