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D3.js arc() Function

  • Last Updated : 31 Aug, 2020

The d3.arc() function is used to generate an arc generator that produce a circular chart. It is based on the difference between the start angle and the end angle.

Syntax:

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d3.arc();

Parameters: This function does not accept any parameters.

Return Values: This function returns an arc generator function.



Below examples illustrate the d3.arc() function in D3.js:

Example 1:

HTML




<!DOCTYPE html> 
<html lang="en"
  
<head
    <meta charset="UTF-8" /> 
    <meta name="viewport"
          content="width=device-width, 
                   initial-scale=1.0"/> 
  
    <!--Fetching from CDN of D3.js -->
    <script src
        "https://d3js.org/d3.v6.min.js"
    </script>
</head
  
<body
    <div style="width:300px; height:300px;">
        <center>
            <h1 style="color:green">
                GeeksforGeeks
            </h1
  
            <h2>
                d3.arc()
            </h2
  
        </center>
  
        <svg width="300" height="300">
        </svg>
    </div>
  
    <script
        var svg = d3.select("svg")
            .append("g")
            .attr("transform", "translate(150,50)");
  
        // Function is used
        var arc = d3.arc()
            .innerRadius(40)
            .outerRadius(45)
            .startAngle(100)
            .endAngle(2 * 180);
  
        svg.append("path")
            .attr("class", "arc")
            .attr("d", arc)
            .attr("fill","green");
    </script
</body
  
</html>

Output:

Example 2:

HTML




<!DOCTYPE html> 
<html lang="en">
  
<head
    <meta charset="UTF-8" /> 
    <meta name="viewport"
          content="width=device-width, 
                   initial-scale=1.0"/> 
  
    <!--Fetching from CDN of D3.js -->
    <script src
            "https://d3js.org/d3.v6.min.js"
    </script>
</head
  
<body
    <div style="width:300px; height:300px;">
        <center>
  
            <h1 style="color:green">
                GeeksforGeeks
            </h1
  
            <h2>d3.arc()</h2
        </center>
  
        <svg width="300" height="300">
        </svg>
    </div>
  
    <script
        var svg = d3.select("svg")
            .append("g")
            .attr("transform", "translate(150,50)");
  
        // An arc will be created
        var arc = d3.arc()
            .innerRadius(40)
            .outerRadius(45)
            .startAngle(10)
            .endAngle(8);
  
        svg.append("path")
            .attr("class", "arc")
            .attr("d", arc)
            .attr("fill","green");
    </script
</body
  
</html>

Output:

Example 3:

HTML




<!DOCTYPE html> 
<html lang="en"
  
<head
    <meta charset="UTF-8" /> 
    <meta name="viewport"
          content="width=device-width, 
                   initial-scale=1.0"/> 
       
    <!--Fetching from CDN of D3.js -->
    <script src
        "https://d3js.org/d3.v6.min.js"
    </script>
  
</head
  
<body
    <script
        var svg = d3.select("svg")
            .append("g")
            .attr("transform", "translate(150,50)");
  
        // An arc generator is produced
        var arc = d3.arc()
            .innerRadius(40)
            .outerRadius(45)
            .startAngle(10)
            .endAngle(8);
  
        let arr=arc().split(",");
  
        arr.forEach((e,i)=>{
            console.log(i,e);
        })
    </script
</body
  
</html>

Output:




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