Fabric.js Ellipse originX Property

Last Updated : 25 Jan, 2021

In this article, we are going to see how to set the horizontal origin of the transformation of an object canvas Ellipse using FabricJS. The canvas Ellipse means the Ellipse is movable and can be stretched according to requirements. Further, the Ellipse 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 that will contain the Ellipse. After this, we will initialize the instances of Canvas and Ellipse provided by FabricJS and set the horizontal transformation of the Ellipse using originX property, and render the Ellipse on the Canvas as given in the example below.

Syntax:

fabric.Ellipse({
   rx: number,
   ry: number,
   fill: string,
   originX: string
});

Parameters: This function accept four parameters as mentioned above and described below:

rx: It specifies the horizontal radius.
ry: It specifies the vertical radius.
fill: It specifies the color to fill the ellipse.
originX: It specifies the horizontal transformation of a canvas Ellipse.

The below example illustrates the originX property in Fabric.js:

Example:

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        Fabric.js Ellipse originX Property 
    </title> 
  
    <!-- FabricJS CDN -->
    <script src= 
"https://cdnjs.cloudflare.com/ajax/libs/fabric.js/3.6.2/fabric.min.js"> 
    </script> 
</head> 
  
<body> 
    <h1 style="color: green;"> 
        GeeksforGeeks 
    </h1> 
  
    <h3> 
        Fabric.js Ellipse originX 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"); 
  
        // Initiate a Ellipse instance  
        var ellipse = new fabric.Ellipse({ 
            rx: 150, 
            ry: 75, 
            fill: '', 
            stroke: 'green', 
            originX: 'center' 
        }); 
  
        // Render the ellipse in canvas  
        canvas.add(ellipse); 
    </script> 
</body> 
  
</html>