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Fabric.js | Ellipse scaleX Property
  • Last Updated : 29 May, 2020

In this article, we are going to see how to set the horizontal scaling factor of a canvas ellipse using FabricJS. The canvas means ellipse is movable and can be stretched according to requirement. Further, the ellipse can be customized when it comes to initial stroke color, fill color, stroke width, or radius.

To make it possible we are going to use a JavaScript library called FabricJS. After importing the library using CDN, we will create a canvas block in the body tag which will contain our ellipse. After this, we will initialize instances of Canvas and Ellipse provided by FabricJS and set the horizontal scaling factor of the canvas ellipse using scaleX property and render the Ellipse on the Canvas as given in the example below.

Syntax:

fabric.Ellipse({
    rx: number,
    ry: number,
    scaleX: number
}); 

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

  • rx: It specifies the horizontal radius.
  • ry: It specifies the vertical radius.
  • scaleX: It specifies the horizontal scaling factor.

Example: This example uses FabricJS to set horizontal scaling factor of a canvas ellipse.




<!DOCTYPE hyml>
<html>
  
<head>
    <title
        Fabric.js | Ellipse scaleX Property
    </title>
  
    <!-- FabricJS CDN -->
    <script src=
    </script>
</head>
  
<body>
    <div style="text-align: center;width: 600px;">
        <h1 style="color: green;">
            GeeksforGeeks
        </h1>
        <b>
            Fabric.js | Ellipse scaleX Property
        </b>
    </div>
  
    <div style="text-align: center;">
    <canvas id="canvas" width="600" height="200"
            style="border:1px solid #000000;">
    </canvas>
    </div>
  
    <script>
        // Initiate a Canvas instance
        var canvas = new fabric.Canvas("canvas");
  
        // Initiate a Ellipse instance
        var ellipse = new fabric.Ellipse({
            rx: 80,
            ry: 40,
            scaleX: 2
        });
  
        // Render the Ellipse in canvas
        canvas.add(ellipse);
    </script>
</body>
  
</html>                   

Output:

full-stack-img




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