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> |