FabricJS - How to center a Line object in the current viewport of the canvas?

In this tutorial, we will learn how to center a Line object horizontally and vertically in the current viewport of the canvas using FabricJS. Line element is one of the basic elements provided in FabricJS. It is used to create straight lines. Since line elements are geometrically one-dimensional and contain no interiors, they are never filled. We can create a line object by creating an instance of Fabric.Line, specifying the x and y coordinates of the line, and adding it to the canvas. To center the Line object on the current viewport of the canvas, we use theviewportCentermethod.

Syntax

viewportCenter(): fabric.Object

Default appearance of Line objects

Example

Let’s look at a code example to see how it works without usingviewportCenterThe method is the appearance of the Line object. In this case, the line object will not be centered on the canvas.

     
  
Default appearance of the Line object
 
 You can see that the line object is not centered with respect to the current viewport of canvas 
    

UsingviewportCenterMethod

Example

Let's look at a code example to see what a line object looks like when using theviewportCentermethod. In this case, our line object will be centered relative to the current viewport of the canvas.

     
  
Using the viewportCenter method
 
 You can see that the line object is centered with respect to the current viewport of canvas 
    

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