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Fabric.js ActiveSelection cornerDashArray Property

  • Last Updated : 31 Jul, 2021

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 the ActiveSelection is movable and can be stretched according to requirement. In this article we will be using cornerDashArray property to set the dash pattern 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 that will contain the ActiveSelection. After this, initialize an instance of Canvas and ActiveSelection class provided by Fabric.js and use the cornerDashArray property to set the dash pattern of the corners.

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Syntax:

fabric.ActiveSelection(ActiveSelection, {
  cornerDashArray: array
});

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



  • cornerDashArray: This parameter takes a array value that defines the dash pattern of the corners.

 

Example: This example uses Fabric.js to set the cornerDashArray 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 cornerDashArray 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(), {
            cornerDashArray: [3]
        });
        canvas.setActiveObject(gfg);
        canvas.requestRenderAll();
        canvas.centerObject(gfg);
    </script>
</body>
  
</html>

Output:




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