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Fabric.js Ellipse touchCornerSize Property

  • Last Updated : 04 Feb, 2021

In this article, we are going to see how to set the touchCornerSize of the canvas Ellipse using FabricJS, it used to fill an object. 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.

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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 instances of Canvas and Ellipse provided by FabricJS and set the touchCornerSize color of the canvas Ellipse using touchCornerSize property, and render the Ellipse on the Canvas as given in the below example.

Syntax:

fabric.Ellipse({
   rx: number,
   ry: number,
   fill: string,
   touchCornerSize: 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.
  • fill: It specifies the color to fill the ellipse.
  • touchCornerSize: Size of object’s controlling corners when touch interaction is detected.

Example:

HTML




<!DOCTYPE html>
<html>
  
<head>
    <!-- FabricJS CDN -->
    <script src=
    </script>
</head>
  
<body>
    <h1 style="color: green;">
        GeeksforGeeks
    </h1>
  
    <h3>
        Fabric.js Ellipse touchCornerSize 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',
            touchCornerSize: 8
        });
  
        // Render the ellipse in canvas 
        canvas.add(ellipse);
        canvas.centerObject(ellipse);
    </script>
</body>
  
</html>

Output:




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