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Fabric.js ActiveSelection cornerStyle Property

  • Last Updated : 31 Jul, 2021
Geek Week

Fabric.js is a JavaScript library that is used to work with canvas. The canvas ActiveSelection is one of the class of Fabric.js that is used to create ActiveSelection instances. The canvas ActiveSelection means it is movable and can be stretched according to requirement. In this article we will be using cornerStyle property to set the style of the corners of the canvas ActiveSelection.

Approach: First import the Fabric.js library. After importing the library, create a canvas block in the body tag which will contain the ActiveSelection. After this, initialize an instance of Canvas and ActiveSelection class provided by Fabric.js and use the cornerStyle property to set the style of the corners.

Syntax:

fabric.ActiveSelection(ActiveSelection, {
  cornerStyle: string
});

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

  • cornerStyle: This parameter takes a string value. The accepted values of this parameter are “circle” and “rect”.

 



Example: This example uses Fabric.js to set the cornerStyle property of the canvas ActiveSelection.

HTML




<!DOCTYPE html>
<html>
  
<head>
    <!-- FabricJS CDN -->
    <script src=
    </script>
</head>
  
<body>
    <div style="text-align: center; width: 400px;">
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
  
        <b>
            Fabric.js | ActiveSelection cornerStyle Property
        </b>
    </div>
  
    <div style="text-align: center;">
        <canvas id="canvas" width="500" height="500" 
            style="border:1px solid green;">
        </canvas>
    </div>
  
    <img src=
        width="100" height="100"
        id="my-image" style="display: none;">
          
    <script>
        var canvas = new fabric.Canvas("canvas");
  
        // Getting the image 
        var img = document.getElementById('my-image');
  
        // Creating the image instance 
        var geek = new fabric.Image(img, {
        });
  
        canvas.add(geek);
  
        var geek = new fabric.IText('GeeksforGeeks', {
        });
        canvas.add(geek);
        canvas.centerObject(geek);
  
        var gfg = new fabric.ActiveSelection(
            canvas.getObjects(), {
            cornerStyle: 'circle',
        });
        canvas.setActiveObject(gfg);
        canvas.requestRenderAll();
        canvas.centerObject(gfg);
    </script>
</body>
  
</html>

Output:

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