D3.js chord.sortSubgroups() Function
The chord.sortSubgroups() function in D3.js is used to set the subgroup comparator to the specified function or null and returns this chord layout.
Syntax:
chord.sortSubgroups([compare]);
Parameters: This function accepts a single parameter as mentioned above and described below:
- compare: This parameter is the function to set the subgroup comparator.
Return Value: This function returns the chord layout.
Below programs illustrate the chord.sortSubgroups() function in D3.js
Example 1:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src="https://d3js.org/d3.v4.js"></script> </head> <body> <center> <h1 style="color:green;">w3wiki</h1> <h3>D3.js | chord.sortSubgroups() 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(0.2) // Use of chord.sortSubgroups() Function .sortSubgroups(d3.ascending) (data) svg.datum(chords) .append("g") .selectAll("g") .data(function (d) { return d.groups; }) .enter() .append("g") .append("path") .style("fill", "yellow") .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(120) ) .style("fill", "purple") .style("stroke", "black"); </script> </center> </body> </html> |
Output:
Example 2:
<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <script src= "https://d3js.org/d3.v4.min.js"></script> <script src= "https://d3js.org/d3-color.v1.min.js"> </script> <script src= "https://d3js.org/d3-interpolate.v1.min.js"> </script> <script src= "https://d3js.org/d3-scale-chromatic.v1.min.js"> </script> </head> <body> <center> <h1 style="color:green;">w3wiki</h1> <h3>D3.js | chord.sortSubgroups() 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_1 = [d3.schemeSet1[0], d3.schemeCategory10[1], d3.schemeCategory10[2], d3.schemeCategory10[3], d3.schemeCategory10[4], d3.schemeCategory10[5], d3.schemeCategory10[6]]; var colors = [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(0.2) // Use of chord.sortSubgroups() Function .sortSubgroups(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: