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Fabric.js Group strokeWidth Property

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In this article, we are going to see how to set the strokeWidth of a Group of the 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 is used for the effect of backwards easing in and out the object it is used on, set the width of the stroke color in the canvas Group using the strokeWidth property.


fabric.Group([canvas1, canvas2], {
   strokeWidth: Number

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

  • strokeWidth: It specifies the width of the stroke color in the canvas Group. It contains a number value.

The below example illustrates the use of Fabric.js Group strokeWidth property.



  <!-- FabricJS CDN -->
  <script src=
    <div style="text-align: center;width: 400px;">
      <h1 style="color: green;">
          Fabric.js | Group strokeWidth Property
    <div style="text-align: center;">
      <canvas id="canvas" width="500" height="300"
      style="border:1px solid green;">
      // 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',
        stroke: 'red',
        strokeWidth: 10
      // 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 ], {
        stroke: 'red', 
        strokeWidth: 10
      // Render the Group in canvas
      // Center the Group in canvas



Last Updated : 29 Jan, 2021
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