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Fabric.js Polygon strokeDashOffset Property

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  • Last Updated : 20 Jan, 2021
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In this article, we are going to see how to set the stroke dashed offset to the canvas Polygon using FabricJS. The canvas Polygon means the Polygon is movable and can be stretched according to requirements. Further, the Polygon 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 Polygon. After this, we will initialize instances of Canvas and Polygon provided by FabricJS and create a stroke using stroke property, and further use the strokeDashOffset property to add stroke offset and render the Canvas on the Polygon as given in the below example.


    { x: pixel, y: pixel },  
    { x: pixel, y: pixel },  
    { x: pixel, y: pixel},  
    { x: pixel, y: pixel},  
    { x: pixel, y: pixel }],
        strokeDashOffset: number, 

Parameter: This property accepts a single parameter as mentioned above and described below.

  • strokeDashOffset: It specifies the amount of offset of stroke.

Note: Dimension pixels must create a polygon.

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


<!DOCTYPE html>
    <!-- Loading the FabricJS library -->
    <script src=
    <div style="text-align: center;width: 600px;">
        <h1 style="color: green;">
            Fabric.js | Polygon strokeDashOffset Property 
    <canvas id="canvas" width="600" height="200"
        style="border:1px solid #000000;"
        // 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
        }], {
            stroke: 'green',
            strokeWidth: 3,
            strokeDashArray: [10],
            strokeDashOffset: 5
        // Render the polygon in canvas 


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