Chord diagrams show directed relationships among a group of entities. Layout inspired by Martin Krzywinski's beautiful work on Circos.
forked from mbostock's block: Chord Diagram
| license: gpl-3.0 | |
| height: 960 | |
| border: no |
Chord diagrams show directed relationships among a group of entities. Layout inspired by Martin Krzywinski's beautiful work on Circos.
forked from mbostock's block: Chord Diagram
| <!DOCTYPE html> | |
| <meta charset="utf-8"> | |
| <style> | |
| body { | |
| font: 20px sans-serif; | |
| } | |
| .group-tick line { | |
| stroke: #000; | |
| } | |
| .ribbons { | |
| fill-opacity: 0.67; | |
| } | |
| </style> | |
| <svg width="1000" height="1000"></svg> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <script> | |
| var matrixData={ | |
| "Occupants": | |
| [0, 10,10,10,10,0,0,0,10,10,10,10,10], | |
| Flooring: | |
| [70,0,0,0,0,0,30,0,0,0,0,0,0], | |
| Millwork: | |
| [40, 0,0,0,0,0,60,0,0,0,0,0], | |
| Ceilings: | |
| [60, 0,0,0,0,0,40,0,0,0,0,0,0], | |
| "Wet Applied Products": | |
| [60, 0,0,0,0,0,40,0,0,0,0,0,0], | |
| "Curtain Wall": | |
| [0, 0,0,0,0,0,100,0,0,0,0,0,0], | |
| "Environment": | |
| [0, 10,10,10,10,0,10,0,10,10,10,0,10], | |
| Roofing: | |
| [0, 0,0,0,0,0,100,0,0,0,0,0,0], | |
| Insulation: | |
| [50, 0,0,0,0,0,50,0,0,0,0,0,0], | |
| MEPFP: | |
| [40, 0,0,0,0,0,60,0,0,0,0,0,0], | |
| Structure: | |
| [50, 0,0,0,0,0,50,0,0,0,0,0,0], | |
| "Furniture": | |
| [90, 0,0,0,0,0,10,0,0,0,0,0,0] | |
| } | |
| matrix= Object.values(matrixData); | |
| matrixKeys = Object.keys(matrixData); | |
| var svg = d3.select("svg"), | |
| width = +svg.attr("width"), | |
| height = +svg.attr("height"), | |
| outerRadius = Math.min(width, height) * 0.5 - 150, | |
| innerRadius = outerRadius - 30; | |
| var formatValue = d3.formatPrefix(",.0", 1e3); | |
| var chord = d3.chord() | |
| .padAngle(0.024) | |
| .sortSubgroups(d3.descending); | |
| var arc = d3.arc() | |
| .innerRadius(innerRadius) | |
| .outerRadius(outerRadius); | |
| var ribbon = d3.ribbon() | |
| .radius(innerRadius); | |
| var color = d3.scaleOrdinal() | |
| .domain(d3.range(4)) | |
| .range(["#6FCDE3", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#E5E52B", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5", | |
| "#D7DAE5" | |
| ]); | |
| var g = svg.append("g") | |
| .attr("transform", "translate(" + width / 2 + "," + height / 2 + ") rotate(75)") | |
| .datum(chord(matrix)); | |
| var group = g.append("g") | |
| .attr("class", "groups") | |
| .selectAll("g") | |
| .data(function(chords) { return chords.groups; }) | |
| .enter().append("g"); | |
| group.append("path") | |
| .style("fill", function(d) { return color(d.index); }) | |
| .style("stroke", function(d) { return d3.rgb(color(d.index)).darker(); }) | |
| .attr("d", arc); | |
| var groupTick = group.selectAll(".group-tick") | |
| .data(function(d) { return groupTicks(d, 1e3); }) | |
| .enter().append("g") | |
| .attr("class", "group-tick") | |
| .attr("transform", function(d) { | |
| return "rotate(" + (d.angle * 180 / Math.PI - 75) + | |
| ") translate(" + outerRadius + ",2)"; | |
| }); | |
| groupTick.append("line") | |
| .attr("x2", 6); | |
| groupTick | |
| .filter(function(d) { return d.value % 5e3 === 0; }) | |
| .append("text") | |
| .attr("x", 8) | |
| .attr("dy", ".35em") | |
| .attr("transform", function(d) { return d.angle > Math.PI/2 && d.angle < Math.PI*3/2 ? "rotate(180) translate(-16)" : null; }) | |
| .style("text-anchor", function(d) { return d.angle > Math.PI/2 && d.angle < Math.PI*3/2? "end" : null; }) | |
| .text(function(d) { | |
| return matrixKeys[d.index]; | |
| }); | |
| g.append("g") | |
| .attr("class", "ribbons") | |
| .selectAll("path") | |
| .data(function(chords) { return chords; }) | |
| .enter().append("path") | |
| .attr("d", ribbon) | |
| .style("fill", function(d) { return color(d.target.index); }) | |
| .style("stroke", function(d) { return d3.rgb(color(d.target.index)).darker(); }); | |
| // Returns an array of tick angles and values for a given group and step. | |
| function groupTicks(d, step) { | |
| var k = (d.endAngle - d.startAngle) / d.value; | |
| return d3.range(0, d.value, step).map(function(value) { | |
| return { | |
| index:d.index, | |
| value: value, | |
| angle: value * k + d.startAngle | |
| }; | |
| }); | |
| } | |
| </script> |