25:["$","title",null,{"children":"World History Timeline | yolo huang | Observable"}] 49:T881,chart = { let filteredData; if(sorting !== "time") { filteredData = [].concat.apply([], dataByRegion.map(d=>d.values)); } else { filteredData = data.sort((a,b)=> a.start-b.start); } filteredData.forEach(d=> d.color = d3.color(color(d.region))) let parent = this; if (!parent) { parent = document.createElement("div"); const svg = d3.select(DOM.svg(width, height)); const g = svg.append("g").attr("transform", (d,i)=>`translate(${margin.left} ${margin.top})`); const groups = g .selectAll("g") .data(filteredData) .enter() .append("g") .attr("class", "civ") const tooltip = d3.select(document.createElement("div")).call(createTooltip); const line = svg.append("line").attr("y1", margin.top-10).attr("y2", height-margin.bottom).attr("stroke", "rgba(0,0,0,0.2)").style("pointer-events","none"); groups.attr("transform", (d,i)=>`translate(0 ${y(i)})`) groups .each(getRect) .on("mouseover", function(d) { d3.select(this).select("rect").attr("fill", d.color.darker()) tooltip .style("opacity", 1) .html(getTooltipContent(d)) }) .on("mouseleave", function(d) { d3.select(this).select("rect").attr("fill", d.color) tooltip.style("opacity", 0) }) svg .append("g") .attr("transform", (d,i)=>`translate(${margin.left} ${margin.top-10})`) .call(axisTop) svg .append("g") .attr("transform", (d,i)=>`translate(${margin.left} ${height-margin.bottom})`) .call(axisBottom) svg.on("mousemove", function(d) { let [x,y] = d3.mouse(this); line.attr("transform", `translate(${x} 0)`); y +=20; if(x>width/2) x-= 100; tooltip .style("left", x + "px") .style("top", y + "px") }) parent.appendChild(svg.node()); parent.appendChild(tooltip.node()); parent.groups = groups; } else { const civs = d3.selectAll(".civ") civs.data(filteredData, d=>d.civilization) .transition() // .delay((d,i)=>i*10) .ease(d3.easeCubic) .attr("transform", (d,i)=>`translate(0 ${y(i)})`) } return parent }4a:[{"id":"fcc0015cbe24eea265833239de543af33607f288cc9959f9ce4d0e2456b25dbaae5ff62a355704d879441905518bdbbeef0d13496346f63bfed61b07decbd0d3","href":"https://static.observableusercontent.com/files/fcc0015cbe24eea265833239de543af33607f288cc9959f9ce4d0e2456b25dbaae5ff62a355704d879441905518bdbbeef0d13496346f63bfed61b07decbd0d3","name":"civilization timelines - civilization timelines.csv","type":"text/csv","lastModified":1733068747162.269,"size":3382}] 29:{"id":"4b25b3b3be734a40","slug":null,"title":"World History Timeline","thumbnail":"cbba35789d9b0aa44019f1555db5693f705328d3198b087507d5f40a7d8638b7","access_level":"public","create_time":"$D2024-12-01T15:59:07.162Z","update_time":"$D2024-12-01T15:59:07.162Z","view_time":null,"first_public_time":"$D2024-12-01T15:59:07.162Z","has_unpublished_edits":null,"fork":{"id":"6f8f62930d4149f9","slug":"world-history-timeline","title":"World History Timeline","owner":{"id":"eb1622af3a3424c4","login":"tezzutezzu","name":"Danilo Di Cuia"}},"stars":0,"starred":false,"owner":{"type":"team","id":"ef33ac51fa87db83","login":"yolo-huang","name":"yolo huang","avatar_url":"https://avatars-next.observableusercontent.com/bc37bcce01fa261be56522cdf6e89db94cf9ecbc61e4c70bc8474b617b0cad0e","tier":"free_2026","bio":"","followed_by_you":false,"follows_you":false},"version":819,"publish_version":null,"role":null,"authored":false,"authors":[{"type":"individual","id":"150237755228ec26","login":"yolo-huang","name":"yolo huang","avatar_url":"https://avatars-next.observableusercontent.com/d6cd7afa8f19462d88adc2eb5a01caff4141f88dc48de93316163fb697049fdb","tier":null,"bio":"","followed_by_you":false,"follows_you":false}],"members":[{"type":"individual","id":"150237755228ec26","login":"yolo-huang","name":"yolo huang","avatar_url":"https://avatars-next.observableusercontent.com/d6cd7afa8f19462d88adc2eb5a01caff4141f88dc48de93316163fb697049fdb","tier":null,"role":"editor"}],"comments":[],"custom_thumbnail":false,"trashed":false,"lapsed":null,"subscribed":null,"forks":0,"collection":null,"type":"notebook","body":{"titling":"auto","title":"World History Timeline","cells":[{"id":0,"value":"md`# World History Timeline\nData adapted from [Essential Humanities](http://www.essential-humanities.net/history-overview/world-history-timeline/)\n\n`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":632,"value":"viewof sorting = select({title: 'Sorted by', options:[\"region\",\"time\"], value:\"time\"})","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":18,"value":"$49","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":698,"value":"getTooltipContent = function(d) {\nreturn `${d.civilization}\n
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sx+w < width : sx-w>0);\n\n el.style(\"cursor\", \"pointer\")\n\n el\n .append(\"rect\")\n .attr(\"x\", sx)\n .attr(\"height\", y.bandwidth())\n .attr(\"width\", w)\n .attr(\"fill\", d.color);\n\n el\n .append(\"text\")\n .text(d.civilization)\n .attr(\"x\",isLabelRight ? sx-5 : sx+w+5)\n .attr(\"y\", 2.5)\n .attr(\"fill\", \"black\")\n .style(\"text-anchor\", isLabelRight ? \"end\" : \"start\")\n .style(\"dominant-baseline\", \"hanging\");\n}","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":76,"value":"dataByTimeline = d3.nest().key(d=>d.timeline).entries(data);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":319,"value":"dataByRegion = d3.nest().key(d=>d.region).entries(data);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":124,"value":"axisBottom = d3.axisBottom(x)\n .tickPadding(2)\n .tickFormat(formatDate)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":271,"value":"axisTop = d3.axisTop(x)\n .tickPadding(2)\n .tickFormat(formatDate)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":272,"value":"formatDate = d=> d < 0 ? `${-d}BC` : `${d}AD`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":9,"value":"d3 = require(\"d3@5\")","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":6,"value":"csv =d3.csvParse(await FileAttachment(\"civilization timelines - civilization timelines.csv\").text())","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":194,"value":"data = csv.map(d=>{\nreturn {\n ...d,\n start: +d.start,\n end: +d.end\n}\n}).sort((a,b)=> a.start-b.start);","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":43,"value":"regions = d3.nest().key(d=>d.region).entries(data).map(d=>d.key)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":64,"value":"timelines = dataByTimeline.map(d=>d.key)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":45,"value":"color = d3.scaleOrdinal(d3.schemeSet2).domain(regions)","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":338,"value":"import {checkbox, select} from \"@jashkenas/inputs\"","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"},{"id":696,"value":"html`CSS`","pinned":false,"hidden":false,"mode":"ojs","author":"$undefined","summary":"$undefined","tool":"$undefined","providerMetadata":"$undefined","attachments":"$undefined","output":"$undefined","database":"$undefined"}],"files":"$W4a","stdlib":"1"}} 24:null