How to add space between characters in Text using FabricJS?

FabricJS Javascript HTML5 Canvas

In this tutorial, we are going to learn about how to add space between characters in a Text object using FabricJS. We can display text on canvas by adding an instance of fabric.Text. Not only does it allow us to move, scale and change the dimensions of the text but it also provides additional functionality like text alignment, text decoration, line height which can be obtained by the properties textAlign, underline and lineHeight respectively. We can also add extra space between each character by using the charSpacing property.

Syntax

new fabric.Text(text: String , { charSpacing: Number }: Object)

Parameters

text − This parameter accepts a String which is the text string that we want to display.
options (optional) − This parameter is an Object which provides additional customizations to our text object. Using this parameter colour, cursor, stroke width and a lot of other properties can be changed related to the text object of which charSpacing is a property.

Options Keys

charSpacing − This property accepts a Number that allows us to control the additional space between characters. It is expressed in thousands of em unit.

Example 1

Default appearance of a Text object

Let’s see a code example to see the default appearance of Text object when charSpacing property is not used.


<!DOCTYPE html>
<html>
<head>
   <!-- Adding the Fabric JS Library-->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
   <h2>Default appearance of a Text object</h2>
   <p>You can see the default appearance of Text object when charSpacing property is not used</p>
   <canvas id="canvas"></canvas>

   <script>
      // Initiate a canvas instance
      var canvas = new fabric.Canvas("canvas");
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);

      // Initiate a text object
      var text = new fabric.Text("Add sample text here", {
         left: 110,
         top: 70,
      });

      // Add it to the canvas
      canvas.add(text);
   </script>
</body>
</html>

Example 2

Passing charSpacing property as key

In this example, we will see how assigning a value to the charSpacing property adds extra space between the characters. In this case we have passed the value 100 and hence the space will be increased accordingly.


<!DOCTYPE html>
<html>
<head>
   <!-- Adding the Fabric JS Library-->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
   <h2>Passing charSpacing property as key</h2>
   <p>You can see the space between each character has increased</p>
   <canvas id="canvas"></canvas>

   <script>
      // Initiate a canvas instance
      var canvas = new fabric.Canvas("canvas");
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);

      // Initiate a text object
      var text = new fabric.Text("Add sample text here", {
         left: 110,
         top: 70,
         charSpacing: 100,
      });

      // Add it to the canvas
      canvas.add(text);
   </script>
</body>
</html>

Rahul Gurung

Updated on: 13-Sep-2022

278 Views

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