In this tutorial, we will learn how to add a stroke to a rectangle using FabricJS. Rectangle is one of the various shapes provided by FabricJS. In order to create a rectangle, we must create an instance of the Fabric.Rect class and add it to the canvas.
Our rectangular object can be customized in many ways, such as changing its dimensions, adding a background color, or changing the color of the lines drawn around the object. We can do this by using the Stroke attribute.
Syntax
new fabric.Rect({ stroke : String }: Object)Parameters
Options (optional) - This parameter is a ## that provides additional customization #Object to our rectangle. Using this parameter, you can change the color, cursor, stroke width, and many other properties associated with the object for which Stroke is a property.
Stroke - This property accepts a String and identifies the object The color of the border.
Pass the stroke as a key with a hex value
Let Let's look at a code example to see how a rectangular object displays when using thelines property. Hexadecimal color codes begin with "#" followed by a six-digit number representing the color. In this case, we used "#000080", which is navy blue.
<!DOCTYPE html>
<html>
<head>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
<h2 id="Passing-stroke-as-key-with-a-hexadecimal-value">Passing stroke as key with a hexadecimal value</h2>
<p>You can see the navy blue border around the rectangle</p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
// Initiate a rectangle object
var rect = new fabric.Rect({
left: 55,
top: 70,
width: 170,
height: 70,
fill: "#f4f0ec",
stroke: "#000080",
strokeWidth: 9,
});
// Add it to the canvas
canvas.add(rect);
</script>
</body>
</html>Example 2
Pass rgba value to lines attribute
In this example we will see how to The stroke attribute is assigned an "rgba" value. Instead of hexadecimal color codes we can useRGBA values which stand for: red, green, blue and alpha. The alpha parameter specifies the opacity of the color. In this example we used the rgba value (0,0,128,0.8) which is navy blue with an opacity of 0.8.
<!DOCTYPE html>
<html>
<head>
<!-- Adding the Fabric JS Library-->
<script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js"></script>
</head>
<body>
<h2 id="Passing-an-rgba-value-to-the-stroke-property">Passing an rgba value to the stroke property</h2>
<p>You can see the colour added using rgba to the rectangle's stroke</p>
<canvas id="canvas"></canvas>
<script>
// Initiate a canvas instance
var canvas = new fabric.Canvas("canvas");
canvas.setWidth(document.body.scrollWidth);
canvas.setHeight(250);
// Initiate a rectangle object
var rect = new fabric.Rect({
left: 55,
top: 70,
width: 170,
height: 70,
fill: "#f4f0ec",
stroke: "rgba(0,0,128,0.8)",
strokeWidth: 9,
});
// Add it to the canvas
canvas.add(rect);
</script>
</body>
</html>The above is the detailed content of How to add a stroke to a rectangle using FabricJS?. For more information, please follow other related articles on the PHP Chinese website!
Replace String Characters in JavaScriptMar 11, 2025 am 12:07 AMDetailed explanation of JavaScript string replacement method and FAQ This article will explore two ways to replace string characters in JavaScript: internal JavaScript code and internal HTML for web pages. Replace string inside JavaScript code The most direct way is to use the replace() method: str = str.replace("find","replace"); This method replaces only the first match. To replace all matches, use a regular expression and add the global flag g: str = str.replace(/fi
Custom Google Search API Setup TutorialMar 04, 2025 am 01:06 AMThis tutorial shows you how to integrate a custom Google Search API into your blog or website, offering a more refined search experience than standard WordPress theme search functions. It's surprisingly easy! You'll be able to restrict searches to y
8 Stunning jQuery Page Layout PluginsMar 06, 2025 am 12:48 AMLeverage jQuery for Effortless Web Page Layouts: 8 Essential Plugins jQuery simplifies web page layout significantly. This article highlights eight powerful jQuery plugins that streamline the process, particularly useful for manual website creation
Build Your Own AJAX Web ApplicationsMar 09, 2025 am 12:11 AMSo here you are, ready to learn all about this thing called AJAX. But, what exactly is it? The term AJAX refers to a loose grouping of technologies that are used to create dynamic, interactive web content. The term AJAX, originally coined by Jesse J
What is 'this' in JavaScript?Mar 04, 2025 am 01:15 AMCore points This in JavaScript usually refers to an object that "owns" the method, but it depends on how the function is called. When there is no current object, this refers to the global object. In a web browser, it is represented by window. When calling a function, this maintains the global object; but when calling an object constructor or any of its methods, this refers to an instance of the object. You can change the context of this using methods such as call(), apply(), and bind(). These methods call the function using the given this value and parameters. JavaScript is an excellent programming language. A few years ago, this sentence was
10 Mobile Cheat Sheets for Mobile DevelopmentMar 05, 2025 am 12:43 AMThis post compiles helpful cheat sheets, reference guides, quick recipes, and code snippets for Android, Blackberry, and iPhone app development. No developer should be without them! Touch Gesture Reference Guide (PDF) A valuable resource for desig
Improve Your jQuery Knowledge with the Source ViewerMar 05, 2025 am 12:54 AMjQuery is a great JavaScript framework. However, as with any library, sometimes it’s necessary to get under the hood to discover what’s going on. Perhaps it’s because you’re tracing a bug or are just curious about how jQuery achieves a particular UI
How do I create and publish my own JavaScript libraries?Mar 18, 2025 pm 03:12 PMArticle discusses creating, publishing, and maintaining JavaScript libraries, focusing on planning, development, testing, documentation, and promotion strategies.
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
AI Hentai Generator
Generate AI Hentai for free.
Hot Article
Hot Tools
Atom editor mac version download
The most popular open source editor
mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),
SublimeText3 Linux new version
SublimeText3 Linux latest version
VSCode Windows 64-bit Download
A free and powerful IDE editor launched by Microsoft
ZendStudio 13.5.1 Mac
Powerful PHP integrated development environment
