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>GeeksForGeeks</
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>D3.js | d3.chord() Function</
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// Create the svg area
var svg = d3.select("#GFG")
.append("svg")
.attr("width", 340)
.attr("height", 340)
.append("g")
.attr("transform", "translate(170,170)")
// Create input data
var data = [[0, 5871, 8916, 2868],
[1951, 0, 2060, 6171],
[8010, 16145, 0, 8045],
[1013, 990, 940, 0]];
// 4 groups, so create a vector of 4 colors
var colors =
[d3.schemeDark2[0], d3.schemeDark2[1],
d3.schemeDark2[2], d3.schemeDark2[3]];
// Give this matrix to d3.chord()
var chords = d3.chord()
.padAngle(0.175)
.sortSubgroups(d3.ascending)
(data)
// Add the groups on the inner part
// of the circle
svg.datum(chords)
.append("g")
.selectAll("g")
.data(function (d) { return d.groups; })
.enter()
.append("g")
.append("path")
.style("fill", function (d, i) {
return colors[i]
})
.style("stroke", "black")
.attr("d", d3.arc()
.innerRadius(150)
.outerRadius(160)
)
// Add the links between groups
svg.datum(chords)
.append("g")
.selectAll("path")
.data(function (d) { return d; })
.enter()
.append("path")
.attr("d", d3.ribbon()
.radius(150)
)
.style("fill", function (d) {
return (colors[d.source.index])
})
.style("stroke", "black");
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