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Fabric.js | Triangle skewY Property

  • Last Updated : 29 May, 2020
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In this article, we are going to see how to set the vertical skew of a canvas triangle using FabricJS. The canvas triangle means the triangle is movable and can be stretched according to requirement. Further, the triangle can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

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 triangle. After this, we will initialize instances of Canvas and Triangle provided by FabricJS and set vertical skew of the triangle using skewY property and render the Triangle on the Canvas as given in the example below.

Syntax:

fabric.Triangle({
    width: number,
    height: number,
    skewY: number
});

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

  • width: It specifies the width of triangle.
  • height: It specifies the height of triangle.
  • skewY: It specifies the vertical skew.

Example: This example uses FabricJS to set the vertical skew of a canvas triangle.




<!DOCTYPE html> 
<html> 
  
<head> 
    <title> 
        Fabric.js | Triangle skewY Property
    </title> 
      
    <!-- Adding the FabricJS library -->
    <script src= 
    </script> 
</head> 
  
<body> 
    <center>
       <h1 style="color: green;">
        GeeksforGeeks
       </h1>
       <b>
        Fabric.js | Triangle skewY Property
       </b>
    </center>
    <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 triangle instance 
        var triangle = new fabric.Triangle({
            width: 300,
            height: 150,
            fill: '',
            stroke: 'green',
            strokeWidth: 3,
            skewY: 45
        });
  
        // Render the Triangle in canvas 
        canvas.add(triangle); 
        canvas.centerObject(triangle);
    </script> 
</body> 
  
</html>

Output:

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