Fabric.js | Ellipse selectable Property

Last Updated : 19 Jun, 2020

In this article, we are going to see how to disable the selectability 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 selectable block in the body tag which will contain our ellipse. After this, we will initialize instances of Canvas and Ellipse provided by FabricJS and disable selectability of the canvas ellipse using selectable property and render the Ellipse on the Canvas as given in the example below.

Syntax:

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

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

rx: It specifies the horizontal radius.
ry: It specifies the vertical radius.
selectable: This parameter specifies whether to enable or disable selectability.

Example: This example uses FabricJS to set disable selectability of a canvas ellipse.

<!DOCTYPE html> 
<html> 
  
<head> 
    <title>  
        Fabric.js | Ellipse selectable Property 
    </title> 
  
    <!-- FabricJS CDN -->
    <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 | Ellipse selectable 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, 
            selectable: false 
        }); 
  
        // Render the Ellipse in canvas 
        canvas.add(ellipse); 
    </script> 
</body> 
  
</html>                    