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Fabric.js Textbox cornerSize Property
  • Last Updated : 17 Jan, 2021
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In this article, we are going to see how to set the size of controlling corners of the canvas Textbox using Fabric.js. The Textbox in Fabric.js is movable and can be stretched according to requirement. Further, the Textbox can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

Approach: 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 which will contain the Textbox. After this, we will initialize instances of Canvas and Textbox provided by Fabric.js and set the size of controlling corners of canvas Textbox using cornerSize property and render the Textbox on the Canvas as given in the below example.

Syntax:

fabric.Textbox('text', {
    cornerSize: number
});

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

  • cornerSize: It specifies the size of the controlling corners.

Example: This example uses Fabric.js to set the size of controlling corners of the canvas-like Textbox as given below. You have to click on the object to see the size of controlling corners.



HTML




<html>
<head>
    <!-- Adding the FabricJS library -->
    <script src=
    </script>
</head>
<body>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>
    <h3>
        Fabric.js | Textbox cornerSize Property
    </h3>
    <canvas id="canvas" width="600" height="300"
        style="border:1px solid #000000">
    </canvas>
    <script>
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
  
        // Create a new Textbox instance 
        var text = new fabric.Textbox(
            'A Computer Science Portal', {
            width: 500,
            cornerSize: 10
        });
  
        // Render the Textbox in canvas 
        canvas.add(text);
        canvas.centerObject(text);
    </script>
</body>
</html>

Output:

full-stack-img

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