How to disable selectivity of Triangle using FabricJS?

In this tutorial, we will learn how to disable selectivity of triangles using FabricJS. Triangle is one of the various shapes provided by FabricJS. In order to create a triangle, we must create an instance of the Fabric.Triangle class and add it to the canvas.

In order to modify an object, we must select it in FabricJS. However, we can disable this behavior by using the selectable attribute.

Syntax

new fabric.Triangle{ selectable: Boolean }: Object)

Parameters

• Options (optional) - This parameter is a Object< /em> Provides additional customization to our triangle. Using this parameter, you can change the properties of the object related to the selectable property, such as color, cursor, stroke width and many other properties.

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Option Key

• Optional - This property accepts a Boolean value. When it is assigned a "false" value, the object cannot be selected for modification. Its default value is true.

Example 1

Default behavior or optional property when set to "true"< /p>

Let's look at a code example to see how the object behaves by default when the selectable property is set to True. When the selectable property is set to True, we can select an object, move it around the canvas and modify it.

   
   



   
Default behaviour or when selectable property is set to 'true'
   
You can try moving the triangle around the canvas or scaling it to prove that it's selectable
   
   

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Example 2

Passing optional properties as keys

In this example, we assign a False value to the optional properties. This means we can no longer select the triangle object for modification.

   
   



   
Passing selectable property as key
   
You can see that the triangle is no longer selectable
   
   

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