The chord.sortGroups() function in D3.js is used to set the group comparator to the specified function or null and returns this chord layout.
Syntax:
chord.sortGroups( [compare] )
Parameters: This function accepts a single parameter as mentioned above and described below
- compare: This parameter is the function to set the group comparator.
Return Value: This function returns the chord layout.
Below programs illustrate the chord.sortGroups() function in D3.js:
Example 1:
HTML
<!DOCTYPE html> <html>
<head>
</script>
</head>
<body>
<center>
<h1 style="color:green;">GeeksForGeeks</h1>
<h3>D3.js | chord.sortGroups() Function</h3>
<div id="GFG"></div>
<script>
// Create the svg area
var svg = d3.select("#GFG")
.append("svg")
.attr("width", 320)
.attr("height", 320)
.append("g")
.attr("transform", "translate(160,160)")
// Create input data
var data = [[10, 161, 80, 80, 12, 34, 53],
[13, 990, 9, 69, 76, 35, 4],
[175, 71, 16, 68, 0, 0, 3],
[51, 148, 60, 71, 34, 5, 1],
[13, 990, 9, 69, 76, 35, 4],
[175, 71, 16, 68, 0, 0, 3],
[51, 148, 60, 71, 34, 5, 1]];
// Give this matrix to d3.chord()
var chords = d3.chord()
.padAngle(0.1)
// Use of chord.sortGroups() Function
.sortGroups(d3.ascending)
(data)
svg.datum(chords)
.append("g")
.selectAll("g")
.data(function (d) { return d.groups; })
.enter()
.append("g")
.append("path")
.style("fill", "green")
.style("stroke", "black")
.attr("d", d3.arc()
.innerRadius(100)
.outerRadius(150)
)
svg.datum(chords)
.append("g")
.selectAll("path")
.data(function (d) { return d; })
.enter()
.append("path")
.attr("d", d3.ribbon()
.radius(100)
)
.style("fill", "red")
.style("stroke", "black");
</script>
</center>
</body>
</html>
|
Output:
Example 2:
HTML
<!DOCTYPE html> <html>
<head>
</script>
<script src=
</script>
<script src=
</script>
<script src=
</script>
</head>
<body>
<center>
<h1 style="color:green;">GeeksForGeeks</h1>
<h3>D3.js | chord.sortGroups() Function</h3>
<div id="GFG"></div>
<script>
// 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, 71, 89, 68, 71, 89, 68],
[11, 0, 60, 71, 9, 9, 0],
[10, 145, 0, 85, 145, 0, 85],
[13, 9, 9, 0, 0, 60, 71],
[13, 9, 9, 0, 0, 60, 71],
[10, 145, 0, 85, 145, 0, 85],
[0, 71, 89, 68, 71, 89, 68]];
// 4 groups, so create a vector
// of 4 colors
var colors = [d3.schemeSet1[0],
d3.schemeCategory10[1],
d3.schemeCategory10[2],
d3.schemeCategory10[3],
d3.schemeCategory10[4],
d3.schemeCategory10[5],
d3.schemeCategory10[6]];
var colors_1 = [d3.schemeSet1[0],
d3.schemeSet1[1],
d3.schemeSet1[2],
d3.schemeSet1[3],
d3.schemeSet1[4],
d3.schemeSet1[5],
d3.schemeSet1[6]];
// Give this matrix to d3.chord()
var chords = d3.chord()
.padAngle(0.07)
// Use of chord.sortGroups() Function
.sortGroups(d3.descending)
(data)
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)
)
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, i) {
return colors_1[i]
})
.style("stroke", "black");
</script>
</center>
</body>
</html>
|
Output: