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How to remove controlling borders of a canvas circle using Fabric.js ?
  • Last Updated : 12 May, 2020

In this article, we are going to see how to remove the controlling borders of a canvas circle using FabricJS. The canvas means the circle is movable and can be stretched according to requirement. Further, the circle can be customized when it comes to initial stroke color, fill color, stroke width, or radius.

Approach: To make it possible, we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our circle. After this, we will initialize instances of Canvas and Circle provided by FabricJS and remove controlling borders of the circle using hasBorders property and render the Circle on the Canvas as given in the example below.

Syntax:

fabric.Circle({
    radius: number,
    hasBorders: boolean
});

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

  • radius: It specifies the radius.
  • hasBorders: It specifies whether to show the borders or not. Default value is true.

Example: This example uses FabricJS to remove controlling borders of a canvas circle. Note that you have to click on the object to see the borders.




<!DOCTYPE html>
<html>
  
<head>
    <title>
        How to remove controlling borders of
        a canvas circle using FabricJS?
    </title>
  
    <!-- FabricJS CDN -->
    <script src=
    </script>
</head>
  
<body>
    <canvas id="canvas" width="600" height="200" 
        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: 50,
            hasBorders: false
        });
  
        // Render the circle in canvas
        canvas.add(circle);
    </script>
</body>
  
</html>

Output:

full-stack-img




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