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Fabric.js Group lockScalingFlip Property

  • Last Updated : 29 Jan, 2021

In this article, we are going to see how to set the lockScalingFlip of a Group canvas using Fabric.js. The Group in Fabric.js is movable and can be stretched according to requirements. Further, the Group can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

To make it possible we are going to use a JavaScript library called Fabric.js. After importing the library, we will create a canvas block in the body tag that will contain the Group. After this, we will initialize instances of Canvas and Group provided by Fabric.js and see if the option set to true will lock the flipping in the canvas Group using the lockScalingFlip property.

Syntax:

fabric.Group([canvas1, canvas2], {
    lockScalingFlip: Boolean
});

Parameters: This property accepts a single parameter as mentioned above and described below:

  • lockScalingFlip: It specifies if the option set to true will lock the flipping. It contains a boolean value.

Below example illustrate the use of Fabric.js Group lockScalingFlip property:



Example:

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 | Group lockScalingFlip Property
        </b>
    </div>
    
    <div style="text-align: center;">
        <canvas id="canvas" width="500" height="300"
            style="border:1px solid green;">
        </canvas>
    </div>
    
    <script>
        // Initiate a Canvas instance
        var canvas = new fabric.Canvas("canvas");
  
        // Initiate a circle instance
        var circle = new fabric.Circle({
            radius: 100,
            fill: 'lightgreen',
            scaleY: 0.6,
            originX: 'center',
            originY: 'center',
        });
  
        // Initiate a text instance
        var text = new fabric.Text('GeeksforGeeks', {
            fontSize: 25,
            originX: 'center',
            originY: 'center'
        });
  
        // Initiate a Group instance
        var group = new fabric.Group([ circle, text ], {
            lockScalingFlip: true
        });
  
        // Render the Group in canvas
        canvas.add(group);
  
        // Center the Group in canvas
        canvas.centerObject(group);
    </script>
</body>
  
</html>

Output:




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