How to create a canvas with background color using FabricJS?-JS Tutorial-php.cn

Home

Web Front-end

JS Tutorial

How to create a canvas with background color using FabricJS?

王林

Sep 14, 2023 pm 08:09 PM

如何使用 FabricJS 创建具有背景颜色的画布？

In this article, we will create a canvas with a given background color using FabricJS. The default background color provided by the FabricJS API is white, which can be customized using the second parameter.

Syntax

new fabric.Canvas(element: HTMLElement|String, { backgroundColor: String }: Object)

Parameters

Element - This parameter is
Options - This parameter is an object that provides additional customizability to our canvas and backgroundColor is one of them, it will help us customize the background color

Example 1

Let us see how to create a canvas with background color using FabricJS. Since FabricJS works on top of the Canvas API, we will create an HTML element using the

Additionally, we pass that id to the FabricJS API so that it can initialize the FabricJS Canvas instance on the

<!DOCTYPE html>
<html>
<head>
   <!-- Adding the FabricJS library -->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js">
   </script>
</head>
<body>
   <h2 id="How-to-create-a-canvas-with-a-background-color-using-FabricJS">How to create a canvas with a background color using FabricJS</h2>
   <p>Here we have used &#39;cyan&#39; as the background color.</p>
   <canvas id="canvas"> </canvas>
   <script>
      // Initiate a Canvas instance and add backgroundColor
      var canvas = new fabric.Canvas(&#39;canvas&#39;, {
         backgroundColor: &#39;cyan&#39;
      });
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);
   </script>
</body>
</html>

Example 2

Let’s give another example. Here we will create a canvas with a background color and create a Circle object on the canvas.

<!DOCTYPE html>
<html>
<head>
   <!-- Adding the FabricJS library -->
   <script src="https://cdnjs.cloudflare.com/ajax/libs/fabric.js/510/fabric.min.js">
   </script>
</head>
<body>
   <h2 id="How-to-create-a-canvas-with-a-background-color-using-FabricJS">How to create a canvas with a background color using FabricJS</h2>
   <p>Here we have created a canvas with a background color and a circle object on the canvas</p>
   <canvas id="canvas"> </canvas>
   <script>
      // Initiate a Canvas instance and add backgroundColor
      var canvas = new fabric.Canvas(&#39;canvas&#39;, {
         backgroundColor: &#39;cyan&#39;
      });
      // Initiate a Circle instance
      var circle = new fabric.Circle({
         radius: 50,
         fill: "red",
         hoverCursor: &#39;not-allowed&#39;,
      });
      // Render the circle in canvas
      canvas.add(circle);
      canvas.setWidth(document.body.scrollWidth);
      canvas.setHeight(250);
   </script>
</body>
</html>

The above is the detailed content of How to create a canvas with background color using FabricJS?. For more information, please follow other related articles on the PHP Chinese website!

Statement

This article is reproduced at:tutorialspoint. If there is any infringement, please contact admin@php.cn delete

Replace String Characters in JavaScriptMar 11, 2025 am 12:07 AM

Detailed 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 AM

This 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

Build Your Own AJAX Web ApplicationsMar 09, 2025 am 12:11 AM

So 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

Example Colors JSON FileMar 03, 2025 am 12:35 AM

This article series was rewritten in mid 2017 with up-to-date information and fresh examples. In this JSON example, we will look at how we can store simple values in a file using JSON format. Using the key-value pair notation, we can store any kind

8 Stunning jQuery Page Layout PluginsMar 06, 2025 am 12:48 AM

Leverage 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

What is 'this' in JavaScript?Mar 04, 2025 am 01:15 AM

Core 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

Improve Your jQuery Knowledge with the Source ViewerMar 05, 2025 am 12:54 AM

jQuery 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

10 Mobile Cheat Sheets for Mobile DevelopmentMar 05, 2025 am 12:43 AM

This 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

See all articles