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Mar 5, 2024
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Revenue by music format, 1973–2018New Zealand tourists, 1921–2018Sea ice extent, 1978–2017U.S. population by State, 1790–1990Hertzsprung–Russell diagramSpilhaus shoreline mapWalmart’s growthInequality in American citiesU.S. state choroplethWorld choroplethScatterplot matrixLine chart, multiple seriesLine chart with tooltipTreemapBar chart transitionsBand chartCancer survival ratesSlope chartDifference chartDiverging bar chartDiverging stacked bar chartScatterplotSpike mapBubble mapBox plotPSR B1919+21Normalized stacked area chartDirected chord diagramChord dependency diagramVolcano contoursRadial area chartRadial stacked bar chart, sortedRadial stacked bar chartHorizon chartSunburstStreamgraphTidy treeCluster treeRadial cluster treeBeeswarmIciclePie chartCircle packingRadial tidy treeHorizontal bar chartBubble chartStacked area chartLine chart, percent changeSankey diagramIndex chartDisjoint force-directed graphForce-directed graphHistogramBollinger bandsCandlestick chartConnected scatterplotDot plotGrouped bar chartStacked bar chart, normalizedStacked bar chart, horizontalStacked bar chartDonut chartLine chart, missing dataArea chart with missing dataArea chartChoroplethCalendarLine chartColor SchemesWord cloudd3.packEncloseNon-contiguous cartogramStar mapSolar pathSolar TerminatorWorld airports VoronoiU.S. airports VoronoiGeoTIFF contours IIVector fieldRaster & vectorClipped map tilesVector tilesRaster tilesWeb Mercator tilesTissot’s indicatrixProjection comparisonWorld map (canvas)Bivariate choroplethColor legendStyled axesGraticule labels (stereographic)Voronoi labelsPie chart componentBubble chart componentScatterplot with shapesRealtime horizon chartRidgeline plotParallel coordinatesThreshold encodingGradient encodingVariable-color lineMarey’s TrainsMarimekkoChord diagramHierarchical edge bundling IIHierarchical edge bundlingArc diagramMobile patent suitsForce-directed treeTree of LifeIndented treeCircle packing componentNested treemapCascaded treemapParallel setsNormal quantile plotQ–Q PlotHexbin mapHexbin (area)HexbinContoursDensity contoursKernel density estimationMoving averageSeamless zoomable map tilesZoomable bar chartZoomable area chartPannable chartBrushable scatterplot matrixBrushable scatterplotVersor draggingZoomable sunburstZoomable icicle
Collapsible tree
Zoomable circle packingZoomable treemapHierarchical bar chartWorld tourOrthographic to equirectangularZoom to bounding boxSmooth zoomingStreamgraph transitionsStacked-to-grouped barsBar Chart RaceScatterplot tourTemporal force-directed graphAnimated treemap
Also listed in…
Visualization
d3-hierarchy
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chart = {

// Specify the charts’ dimensions. The height is variable, depending on the layout.
const width = 928;
const marginTop = 10;
const marginRight = 10;
const marginBottom = 10;
const marginLeft = 40;

// Rows are separated by dx pixels, columns by dy pixels. These names can be counter-intuitive
// (dx is a height, and dy a width). This because the tree must be viewed with the root at the
// “bottom”, in the data domain. The width of a column is based on the tree’s height.
const root = d3.hierarchy(data);
const dx = 10;
const dy = (width - marginRight - marginLeft) / (1 + root.height);

// Define the tree layout and the shape for links.
const tree = d3.tree().nodeSize([dx, dy]);
const diagonal = d3.linkHorizontal().x(d => d.y).y(d => d.x);

// Create the SVG container, a layer for the links and a layer for the nodes.
const svg = d3.create("svg")
.attr("width", width)
.attr("height", dx)
.attr("viewBox", [-marginLeft, -marginTop, width, dx])
.attr("style", "max-width: 100%; height: auto; font: 10px sans-serif; user-select: none;");

const gLink = svg.append("g")
.attr("fill", "none")
.attr("stroke", "#555")
.attr("stroke-opacity", 0.4)
.attr("stroke-width", 1.5);

const gNode = svg.append("g")
.attr("cursor", "pointer")
.attr("pointer-events", "all");

function update(event, source) {
const duration = event?.altKey ? 2500 : 250; // hold the alt key to slow down the transition
const nodes = root.descendants().reverse();
const links = root.links();

// Compute the new tree layout.
tree(root);

let left = root;
let right = root;
root.eachBefore(node => {
if (node.x < left.x) left = node;
if (node.x > right.x) right = node;
});

const height = right.x - left.x + marginTop + marginBottom;

const transition = svg.transition()
.duration(duration)
.attr("height", height)
.attr("viewBox", [-marginLeft, left.x - marginTop, width, height])
.tween("resize", window.ResizeObserver ? null : () => () => svg.dispatch("toggle"));

// Update the nodes…
const node = gNode.selectAll("g")
.data(nodes, d => d.id);

// Enter any new nodes at the parent's previous position.
const nodeEnter = node.enter().append("g")
.attr("transform", d => `translate(${source.y0},${source.x0})`)
.attr("fill-opacity", 0)
.attr("stroke-opacity", 0)
.on("click", (event, d) => {
d.children = d.children ? null : d._children;
update(event, d);
});

nodeEnter.append("circle")
.attr("r", 2.5)
.attr("fill", d => d._children ? "#555" : "#999")
.attr("stroke-width", 10);

nodeEnter.append("text")
.attr("dy", "0.31em")
.attr("x", d => d._children ? -6 : 6)
.attr("text-anchor", d => d._children ? "end" : "start")
.text(d => d.data.name)
.attr("stroke-linejoin", "round")
.attr("stroke-width", 3)
.attr("stroke", "white")
.attr("paint-order", "stroke");

// Transition nodes to their new position.
const nodeUpdate = node.merge(nodeEnter).transition(transition)
.attr("transform", d => `translate(${d.y},${d.x})`)
.attr("fill-opacity", 1)
.attr("stroke-opacity", 1);

// Transition exiting nodes to the parent's new position.
const nodeExit = node.exit().transition(transition).remove()
.attr("transform", d => `translate(${source.y},${source.x})`)
.attr("fill-opacity", 0)
.attr("stroke-opacity", 0);

// Update the links…
const link = gLink.selectAll("path")
.data(links, d => d.target.id);

// Enter any new links at the parent's previous position.
const linkEnter = link.enter().append("path")
.attr("d", d => {
const o = {x: source.x0, y: source.y0};
return diagonal({source: o, target: o});
});

// Transition links to their new position.
link.merge(linkEnter).transition(transition)
.attr("d", diagonal);

// Transition exiting nodes to the parent's new position.
link.exit().transition(transition).remove()
.attr("d", d => {
const o = {x: source.x, y: source.y};
return diagonal({source: o, target: o});
});

// Stash the old positions for transition.
root.eachBefore(d => {
d.x0 = d.x;
d.y0 = d.y;
});
}

// Do the first update to the initial configuration of the tree — where a number of nodes
// are open (arbitrarily selected as the root, plus nodes with 7 letters).
root.x0 = dy / 2;
root.y0 = 0;
root.descendants().forEach((d, i) => {
d.id = i;
d._children = d.children;
if (d.depth && d.data.name.length !== 7) d.children = null;
});

update(null, root);

return svg.node();
}
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data = FileAttachment("flare-2.json").json()
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