D3.js quadraticCurveTo() Function

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The d3.path.quadraticCurveTo() function is used to draw the quadratic bezier segment to a certain point from the current points via certain control points.

Syntax:

path.quadraticCurveTo(cpx, cpy, x, y)

Parameters: It takes four parameters as given above and described below.

cpx: It is the x-coordinate of the quadratic control point.
cpy: It is the y-coordinate of the quadratic control point.
x: It is the x-coordinate of the ending point.
y: It is the y-coordinate of the ending point.

Example 1:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width,initial-scale=1.0"> 
  
    <script src= 
        "https://d3js.org/d3.v4.min.js"> 
    </script> 
  
    <style> 
        h1 { 
            color: green; 
        } 
  
        svg { 
            background-color: #f2f2f2; 
        } 
  
        .path2 { 
            stroke: #000; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1>zambiatek</h1> 
        <b>D3.js | Path.quadraticCurveTo() Function</b> 
        <br><br> 
  
        <svg width="100" height="100"> 
            <path class="path2"> 
        </svg> 
    </div> 
  
    <script> 
          
        // Creating a path  
        var path = d3.path(); 
        path.moveTo(50, 50); 
        path.quadraticCurveTo(95, 0, 50, 90) 
          
        // Closing the path  
        path.closePath(); 
        path.quadraticCurveTo(5, 0, 50, 90) 
          
        // Closing the path  
        path.closePath(); 
        d3.select(".path2").attr("d", path);  
    </script> 
</body> 
  
</html>

Output:

Example 2:

HTML

<!DOCTYPE html> 
<html lang="en"> 
  
<head> 
    <meta charset="UTF-8"> 
    <meta name="viewport" path1tent= 
        "width=device-width,initial-scale=1.0"> 
  
    <script src= 
        "https://d3js.org/d3.v4.min.js"> 
    </script> 
  
    <style> 
        h1 { 
            color: green; 
        } 
  
        svg { 
            background-color: #f2f2f2; 
        } 
  
        .path2 { 
            stroke: #000; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1>zambiatek</h1> 
        <b>D3.js | Path.quadraticCurveTo() Function</b> 
        <br><br> 
        <svg width="100" height="100"> 
            <path class="path2"> 
        </svg> 
    </div> 
      
    <script>; 
  
        // Creating a path  
        var path = d3.path(); 
        path.moveTo(10, 10); 
        path.quadraticCurveTo(95, 0, 50, 90) 
      
        // Closing the path  
        path.closePath(); 
        d3.select(".path2").attr("d", path);  
    </script> 
</body> 
  
</html>

Output:

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