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Fabric.js Circle strokeDashOffset Property

  • Last Updated : 25 Jan, 2021

In this article, we are going to see how to set the stroke dashed offset to the canvas Circle using FabricJS. The canvas Circle means the Circle is movable and can be stretched according to requirements. Further, the Circle can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

Approach:

  • To make it possible we are going to use a JavaScript HTML5 canvas library called FabricJS. 
  • After importing the library, we will create a canvas block in the body tag that will contain the Circle. 
  • After this, we will initialize instances of Canvas and Circle provided by FabricJS and create a stroke using stroke property, and further use the strokeDashOffset property to add stroke offset and render the canvas on the Circle as given in the below example.

Syntax:

fabric.Circle({
   radius: number,
   stroke: string,
   strokeDashOffset: number
});

Parameters: This function accepts two parameters as mentioned above and described below:

  • radius: It specifies the radius of circle.
  • stroke: It specifies the stroke color.
  • strokeDashOffset: It specifies the amount of offset of stroke.

Example: This example uses FabricJS library to set the stroke dashed offset to the canvas Circle as given below.

HTML




<!DOCTYPE html>
<html>
  
<head>
    <title>
        Fabric.js Circle strokeDashOffset Property
    </title>
  
    <!-- FabricJS CDN -->
    <script src=
    </script>
</head>
  
<body>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>
  
    <h3>
        Fabric.js Circle strokeDashOffset Property
    </h3>
  
    <canvas id="canvas" width="600" height="300"
        style="border:1px solid #000000">
    </canvas>
  
    <script>
  
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
  
        // Initiate a Circle instance 
        var circle = new fabric.Circle({
            radius: 100,
            fill: '',
            stroke: 'green',
            strokeDashArray: [10],
            strokeDashOffset: 5
        });
  
        // Render the circle in canvas 
        canvas.add(circle);
        canvas.centerObject(circle);
    </script>
</body>
  
</html>

Output:




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