Skip to content
Related Articles

Related Articles

Improve Article

Fabric.js ActiveSelection borderScaleFactor 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 borderScaleFactor property to set the thickness of the border 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 borderScaleFactor property to set the thickness of the border.

Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics. Kickstart your web development journey by learning JS concepts with our JavaScript Course. Now at it's lowest price ever!

Syntax:

fabric.ActiveSelection(ActiveSelection, {
  borderScaleFactor: number
});

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



  • borderScaleFactor: This parameter takes a number value.

 

Example: This example uses Fabric.js to set the borderScaleFactor 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 borderScaleFactor 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(), {
            borderScaleFactor: 4
        });
        canvas.setActiveObject(gfg);
        canvas.requestRenderAll();
        canvas.centerObject(gfg);
    </script>
</body>
  
</html>

Output:




My Personal Notes arrow_drop_up
Recommended Articles
Page :