Sunday, August 31, 2025
HomeLanguagesJavascriptFabric.js Polygon flipY Property

Fabric.js Polygon flipY Property

In this article, we are going to see how to set the vertically flip of a canvas polygon in FabricJS. The canvas polygon means the polygon is movable and can be stretched according to requirement. Further, the polygon can be customized when it comes to initial stroke color, height, width, fill color, or stroke width.

Approach: 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 polygon. After this, we will initialize instances of Canvas and polygon provided by FabricJS and use the flipY property to vertically flip the polygon and render the Canvas on the polygon as given in the example below.

Syntax:

fabric.Polygon([
          { x: pixel, y: pixel },
          { x: pixel, y: pixel },
          { x: pixel, y: pixel},
          { x: pixel, y: pixel},
          { x: pixel, y: pixel }],
          {
              flipY: boolean
          });


Parameters: This function accepts a single parameter as mentioned above and described below:

  • flipY: It specifies the vertically flip of a canvas object.

Note: Dimension pixels is must create a polygon.

Below examples illustrate the Fabric.JS Polygon flipY property in JavaScript:

Example:

HTML




<!DOCTYPE html>
<html>
  
<head>
  
    <!-- Loading the FabricJS library -->
    <script src=
    </script>
</head>
  
<body>
    <div style="text-align: center;width: 600px;">
        <h1 style="color: green;">
            neveropen
        </h1>
        <b>
            Fabric.js | Polygon flipY Property
        </b>
    </div>
    <canvas id="canvas" width="600" height="200" 
        style="border:1px solid #000000;">
    </canvas>
      
    <script>
        // Initiate a Canvas instance 
        var canvas = new fabric.Canvas("canvas");
  
        // Initiate a polygon instance 
        var polygon = new fabric.Polygon([
            { x: 295, y: 10 },
            { x: 235, y: 198 },
            { x: 385, y: 78 },
            { x: 205, y: 78 },
            { x: 355, y: 198 }], {
            flipY: true
        });
  
        // Render the polygon in canvas 
        canvas.add(polygon); 
    </script>
</body>
  
</html>


Output: 

Whether you’re preparing for your first job interview or aiming to upskill in this ever-evolving tech landscape, neveropen Courses are your key to success. We provide top-quality content at affordable prices, all geared towards accelerating your growth in a time-bound manner. Join the millions we’ve already empowered, and we’re here to do the same for you. Don’t miss out – check it out now!
RELATED ARTICLES

Most Popular

Dominic
32250 POSTS0 COMMENTS
Milvus
81 POSTS0 COMMENTS
Nango Kala
6619 POSTS0 COMMENTS
Nicole Veronica
11792 POSTS0 COMMENTS
Nokonwaba Nkukhwana
11840 POSTS0 COMMENTS
Shaida Kate Naidoo
6734 POSTS0 COMMENTS
Ted Musemwa
7014 POSTS0 COMMENTS
Thapelo Manthata
6689 POSTS0 COMMENTS
Umr Jansen
6704 POSTS0 COMMENTS