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HTML | canvas arc() Method
  • Last Updated : 10 Oct, 2019

The arc() method is used to create an arc/curve i.e. circles, or parts of circles.

Syntax:

context.arc(x, y, r, sAngle, eAngle, counterclockwise);

Parameters:

  • x: This parameter specifies the x-coordinate of the center of the circle.
  • y: This parameter specifies the y-coordinate of the center of the circle.
  • r: This parameter specifies the radius of the circle.
  • sAngle: This parameter specifies the starting angle, in radians( 3 o’clock position of the arc’s circle denotes 0).
  • eAngle: This parameter specifies the ending angle in radians.
  • counterclockwise: This parameter specifies the drawing should be clockwise or anticlockwise. It is false by default which denotes clockwise.

Example 1:




<!DOCTYPE html>
<html>
  
<head>
    <title>
        HTML canvas arc() Method
    </title>
</head>
  
<body style="text-align:left;">
  
    <h1>GeeksforGeeks</h1>
  
    <h2>HTML canvas arc() Method</h2>
  
    <canvas id="GFG" width="500" height="200">
    </canvas>
  
    <script>
        var doc_id = document.getElementById("GFG");
        var context = doc_id.getContext("2d");
        context.beginPath();
        context.strokeStyle = 'green';
        context.arc(100, 50, 40, 0, 2 * Math.PI);
        context.stroke();
    </script>
</body>
  
</html>

Output:



Example 2:




<!DOCTYPE html>
<html>
  
<head>
    <title>
        HTML canvas arc() Method
    </title>
</head>
  
<body style="text-align:left;">
  
    <h1>GeeksforGeeks</h1>
  
    <h2>HTML canvas arc() Method</h2>
  
    <canvas id="GFG" width="500" height="200">
    </canvas>
  
    <script>
        var doc_id = document.getElementById("GFG");
        var context = doc_id.getContext("2d");
        context.beginPath();
        context.fillStyle = 'green';
        context.arc(100, 50, 40, 0, 2 * Math.PI);
        context.fill();
    </script>
</body>
  
</html>

Output:

Supported Browsers: The browser supported by HTML canvas arc() Method are listed below:

  • Google Chrome
  • Internet Explorer 9.0
  • Firefox
  • Safari
  • Opera

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