Fabric.js | Rect strokeWidth Property

In this article, we are going to see how to set the stroke width of a canvas rectangle using FabricJS. The canvas rectangle means rectangle is movable and can be stretched according to requirement. Further, the rectangle 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 FabricJS. After importing the library, we will create a canvas block in the body tag which will contain the rectangle. After this, we will initialize instances of Canvas and Rect provided by FabricJS and set the stroke color and stroke width of the rectangle using stroke and strokeWidth property respectively, and render the Rect on the Canvas as given in the example below.

Syntax:

fabric.Rect({
    width: number,
    height: number,
    stroke: string
    strokeWidth: number
});

Parameters: This function accepts three parameters as mentioned above and described below:

width: It specifies the width of rectangle.
height: It specifies the height of rectangle.
stroke: It specifies the stroke color.
strokeWidth: It specifies the stroke width.

Example: This example uses FabricJS to set stroke width of a canvas rectangle.

<!DOCTYPE html>  
<html>  

<head>  

    <title>  

        Fabric.js | Rect strokeWidth Property 

    </title>  

    <!-- Adding the FabricJS library --> 

    <script src=  

"https://cdnjs.cloudflare.com/ajax/libs/fabric.js/3.6.2/fabric.min.js">  

    </script>  
</head>  

<body>  

    <div style="text-align: center;width: 600px;">   

        <h1 style="color: green;">   

            GeeksforGeeks   

        </h1>   

        <b>   

            Fabric.js | Rect strokeWidth Property   

        </b>   

    </div>  

    <canvas id="canvas" width="600" height="200"

        style="border:1px solid #000000">  

    </canvas>  

    <script>  

        // Initiate a Canvas instance  

        var canvas = new fabric.Canvas("canvas");  

        // Initiate a Rect instance  

        var rectangle = new fabric.Rect({  

            width: 200, 

            height: 100, 

            fill: '',  

            stroke: 'green', 

            strokeWidth: 3 

        });  

        // Render the Rect in canvas  

        canvas.add(rectangle);  

        canvas.centerObject(rectangle); 

    </script>  
</body>  

</html>

Output:

Article Tags :

JavaScript

Web Technologies

Fabric.js