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Fabric.js Path borderScaleFactor Property

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In this article, we are going to see how to set the borderScaleFactor of a Path using Fabric.js. The Path in Fabric.js is movable and can be stretched according to requirements. Further, the Path 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 HTML5 canvas library called Fabric.js. After importing the library, we will create a canvas block in the body tag that will contain the Path. After this, we will initialize instances of Canvas and Path provided by Fabric.js and enable the border scaling of the canvas Path using borderScaleFactor property.


fabric.Path('path', {
   borderScaleFactor: Number;

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

  • borderScaleFactor: It specifies the border scaling of the canvas Path. It contains a Number value.

Below examples illustrate the use of Fabric.js Path borderScaleFactor property in JavaScript:



<!DOCTYPE html> 
  <!-- FabricJS CDN -->
  <script src
  <div style="text-align: center;width: 600px;"
    <h1 style="color: green;"
      Fabric.js | Path borderScaleFactor Property 
  <div style="text-align: center;"
    <canvas id="canvas" width="600" height="400"
      style="border:1px solid green;"
    // Initiate a Canvas instance 
    var canvas = new fabric.Canvas("canvas"); 
    var geek = new fabric.Path('M 0 0 L 300 100 L 200 300 z', {
      fill: 'green',
      borderScaleFactor: 10


Last Updated : 26 Jan, 2021
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