Skip to content
Related Articles

Related Articles

Save Article
Improve Article
Save Article
Like Article

How to set opacity of a text canvas using Fabric.js ?

  • Last Updated : 04 Sep, 2021

In this article, we are going to see how to set the opacity of a canvas-like text using FabricJS. The canvas means text written is movable, rotatable, resizable and can be stretched. Further, the text itself cannot be edited like a textbox.
Approach: 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 text. After this, we will initialize instances of Canvas and Text provided by FabricJS and use the opacity property to set the opacity and render the Canvas on the Text as given in the example below.
 

Syntax:  

Hey geek! The constant emerging technologies in the world of web development always keeps the excitement for this subject through the roof. But before you tackle the big projects, we suggest you start by learning the basics. Kickstart your web development journey by learning JS concepts with our JavaScript Course. Now at it's lowest price ever!

 fabric.Text(text, opacity: number); 

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

  • text: It specifies the text to be written.
  • opacity: It specifies the opacity of our text.

Program: We can use FabricJS to set the opacity of a canvas-like text so that it is faded to half of it’s opacity as given below. 

html




<!DOCTYPE html>
<html>
 
<head>
    <title>
        How to set the opacity of a text
        canvas using Fabric.js ?
    </title>
 
    <!-- Loading the FabricJS library -->
    <script src=
    </script>
</head>
 
<body>
    <canvas id="canvas" width="600" height="200"
        style="border:1px solid #000000;">
    </canvas>
 
    <script>
 
        // Create a new instance of Canvas
        var canvas = new fabric.Canvas("canvas");
 
        // Create a new Text instance
        var text = new fabric.Text('GeeksforGeeks', {
            opacity: 0.5
        });
 
        // Render the text on Canvas
        canvas.add(text);
    </script>
</body>
 
</html>

Output: 




My Personal Notes arrow_drop_up
Recommended Articles
Page :