d3.js chord.sortSubgroups()用法及代码示例

D3.js中的chord.sortSubgroups()函数用于将子组比较器设置为指定函数或为null，并返回此和弦布局。

用法:

chord.sortSubgroups([compare]);

参数：该函数接受如上所述和以下描述的单个参数：

compare:此参数是设置子组比较器的函数。

返回值：此函数返回和弦布局。

以下示例程序旨在说明D3.js中的chord.sortSubgroups()函数

范例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;">GeeksForGeeks</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>

输出：

范例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;">GeeksForGeeks</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>

输出：

相关用法

注：本文由纯净天空筛选整理自SHUBHAMSINGH10大神的英文原创作品 D3.js chord.sortSubgroups() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。