2b:null 2c:["$","title",null,{"children":"Bubble chart: Total assets in banks that failed, by year. | Matt Stiles | Observable"}] 31:T5a3,chart = { const root = pack(data); const leaves = root.leaves().filter((d) => d.depth && d.value); const svg = d3 .create("svg") .style("width", "60%") .style("height", "auto") .style("background", "#fff") .style("font", "10px sans-serif") .attr("text-anchor", "middle"); svg .append("g") .attr("fill", fillColor) .selectAll("circle") .data(leaves) .enter() .append("circle") .attr("cx", (d) => d.x) .attr("cy", (d) => d.y) .attr("r", (d) => d.r) .attr("fill", (d) => d.data.color) .attr("fill-opacity", 0.6); svg .append("g") .attr("pointer-events", "none") .selectAll("text") .data(leaves) .enter() .append("text") .attr("fill", (d) => (d3.lab(d.data.color).l < 40 ? lightColor : darkColor)) .attr("transform", (d) => { const { lines, radius } = fit( d.data.name, isNaN(d.data.value) ? undefined : format(d.data.value).replace("G", "B") ); d.lines = lines; if (!isNaN(d.data.value)) d.lines[d.lines.length - 1].value = true; return `translate(${d.x},${d.y})`; }) .selectAll("tspan") .data((d) => d.lines) .enter() .append("tspan") .attr("x", 0) .attr("y", (d, i, data) => (i - data.length / 2 + 0.8) * 11) .text((d) => d.text) .filter((d) => d.value) .attr("font-weight", 300) .attr("fill-opacity", 0.5); return autosize(svg.node()); }32:T44a,function fit(text, value) { let line; let lineWidth0 = Infinity; const lineHeight = 12; const targetWidth = Math.sqrt(measureWidth(text.trim()) * lineHeight); const words = text.split(/\s+/g); // To hyphenate: /\s+|(?<=-)/ if (!words[words.length - 1]) words.pop(); if (!words[0]) words.shift(); const lines = []; for (let i = 0, n = words.length; i < n; ++i) { let lineText1 = (line ? line.text + " " : "") + words[i]; let lineWidth1 = measureWidth(lineText1); if ((lineWidth0 + lineWidth1) * 0.4 < targetWidth) { line.width = lineWidth0 = lineWidth1; line.text = lineText1; } else { lineWidth0 = measureWidth(words[i]); line = {width: lineWidth0, text: words[i]}; lines.push(line); } } if (value !== undefined) lines.push({width: measureWidth(value), text: value}); let radius = 0; for (let i = 0, n = lines.length; i < n; ++i) { const dy = (Math.abs(i - n / 2 + 0.5) + 0.5) * lineHeight; const dx = lines[i].width / 2; radius = Math.max(radius, Math.sqrt(dx ** 2 + dy ** 2)); } return {lines, radius}; }33:[] 2f:{"id":"14613cd371ab9c9d","slug":null,"title":"Bubble chart: Total assets in banks that failed, by year.","thumbnail":"9e5f4c2b1934a8e5aff10f579b40c736134c866e09d89637f2111881e9c3e111","access_level":"public","create_time":"$D2025-02-04T19:31:58.948Z","update_time":"$D2025-02-04T19:34:46.784Z","view_time":null,"first_public_time":"$D2025-02-04T19:32:48.361Z","fork":true,"stars":0,"starred":false,"owner":{"type":"team","id":"54e9e733040b1ab1","login":"mattstiles","name":"Matt Stiles","avatar_url":"https://avatars-next.observableusercontent.com/11cadfcb75f1f602be0548af79e993847ce76a7f4d47c323d17cb3f9f5bfde91","tier":"starter_2024"},"version":278,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"253745200bf92e83","login":"mattstiles","name":"Matt Stiles","avatar_url":"https://avatars-next.observableusercontent.com/11cadfcb75f1f602be0548af79e993847ce76a7f4d47c323d17cb3f9f5bfde91","tier":null}],"members":[{"type":"individual","id":"253745200bf92e83","login":"mattstiles","name":"Matt Stiles","avatar_url":"https://avatars-next.observableusercontent.com/11cadfcb75f1f602be0548af79e993847ce76a7f4d47c323d17cb3f9f5bfde91","tier":null,"role":"editor"},{"type":"team","id":"54e9e733040b1ab1","login":"mattstiles","name":"Matt Stiles","avatar_url":"https://avatars-next.observableusercontent.com/11cadfcb75f1f602be0548af79e993847ce76a7f4d47c323d17cb3f9f5bfde91","tier":"starter_2024","role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"title":"Bubble chart: Total assets in banks that failed, by year.","cells":[{"id":0,"value":"md`# Bubble chart: Waffle House food figures\nSource: [Waffle House](https://www.wafflehouse.com/beyond-the-menu/)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":197,"value":"viewof sorted = {\n const form = html`

Sort by value`;\n form.checkbox.onclick = () => (form.value = form.checkbox.checked, form.dispatchEvent(new CustomEvent(\"input\")));\n form.value = form.checkbox.checked;\n return form;\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":3,"value":"$31","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":7,"value":"html`\n${DOM.download(await rasterize(chart), null, \"Download as PNG\")}\n${DOM.download(await serialize(chart), null, \"Download as SVG\")}\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"viewof source = {\n const textarea = html`

\nEggs,272000000, #f8c153\nBacon strips,85000000, #e6e6e6\nHashbrown orders,153000000, #e6e6e6\nWaffles,124000000, #e6e6e6\nCups of coffee,58000000, #e6e6e6\nChicken breasts,10000000, #e6e6e6\n`;\n  textarea.style.display = \"block\";\n  textarea.style.boxSizing = \"border-box\";\n  textarea.style.width = \"calc(100% + 28px)\";\n  textarea.style.font = \"var(--mono_fonts)\";\n  textarea.style.minHeight = \"60px\";\n  textarea.style.border = \"none\";\n  textarea.style.padding = \"4px 10px\";\n  textarea.style.margin = \"0 -14px\";\n  textarea.style.background = \"rgb(247,247,249)\";\n  textarea.style.tabSize = 2;\n  textarea.oninput = () => {\n    textarea.style.height = \"initial\";\n    textarea.style.height = `${textarea.scrollHeight}px`;\n  };\n  yield textarea;\n  textarea.oninput();\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":12,"value":"md`Each line in the textarea above represents a bubble in the chart. The area of the circle is determined by the number after the comma. You can also specify a fill color after the number. (The contents of the textarea are interpreted as [CSV](https://en.wikipedia.org/wiki/Comma-separated_values), so put quotes around names if you want them to contain commas.)`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":14,"value":"md`---\n\n## Appendix`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":16,"value":"data = {\n  const data = d3.csvParseRows(source, ([name, value, color]) => ({name, value: !value || isNaN(value = +value) ? undefined : value, color}));\n  if (sorted) data.sort((a, b) => b.value - a.value);\n  return data;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":23,"value":"pack = data => {\n  let alt = d3.median(data, d => d.value);\n  if (!alt) alt = 1;\n  return d3.pack()\n      .size([width, height])\n      .padding(3)\n    (d3.hierarchy({children: data})\n      .sum(d => isNaN(d.value) ? alt : d.value));\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":25,"value":"width = 780","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":28,"value":"height = 500","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":71,"value":"fillColor = \"#ddd\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":74,"value":"lightColor = \"#fff\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":77,"value":"darkColor = \"#000\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":30,"value":"format = d3.format(\".2s\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":49,"value":"$32","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":51,"value":"measureWidth = {\n  const context = document.createElement(\"canvas\").getContext(\"2d\");\n  return text => context.measureText(text).width;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":187,"value":"function autosize(svg) {\n  document.body.appendChild(svg);\n  const box = svg.getBBox();\n  document.body.removeChild(svg);\n  svg.setAttribute(\"viewBox\", `${box.x - 1} ${box.y - 1} ${box.width + 2} ${box.height + 2}`);\n  return svg;\n}","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":19,"value":"import {rasterize, serialize} from \"@mbostock/saving-svg\"","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"},{"id":21,"value":"d3 = require(\"d3@5\")","pinned":true,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W33","stdlib":"1","titling":"auto"}}
30:"$2f:body"
</article></body></html>