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D3.js arc.innerRadius() Function

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  • Last Updated : 15 Sep, 2021
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The arc.innerRadius function in d3.js is used to set the inner radius of the arc. It takes a number that defines the inner radius of the arc.

Syntax:

arc.innerRadius([radius]);

Parameters: This function accepts a single parameter as mentioned above and described below.

  • radius: This defines the size of the inner radius of the arc.

Return Values: This function does not return anything.

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>
                arc.innerRadius()
            </h2>
        </center>
 
        <svg width="300" height="300">
        </svg>
    </div>
 
    <script>
        var svg = d3.select("svg")
            .append("g")
            .attr("transform", "translate(150,100)");
 
        // Arc gernerator function
        var arc = d3.arc()
            .outerRadius(0)
 
            // Use of innerRadius Function
            .innerRadius(60)
            .startAngle(0)
            .endAngle(10);
 
        svg.append("path")
            .attr("class", "arc")
            .attr("d", arc);
 
        let p = document.querySelector(".arc");
        p.style.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>
                arc.innerRadius()
            </h2>
        </center>
 
        <svg width="300" height="300">
        </svg>
    </div>
 
    <script>
        var svg = d3.select("svg")
            .append("g")
            .attr("transform", "translate(150,100)");
 
        // Arc generator function
        var arc = d3.arc()
            .outerRadius(10)
 
            // Use of innerRadius Function
            .innerRadius(50)
            .startAngle(0)
            .endAngle(10);
 
        svg.append("path")
            .attr("class", "arc")
            .attr("d", arc);
 
        let p = document.querySelector(".arc");
        p.style.fill="green";
    </script>
</body>
 
</html>


Output: 

 


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