Implementing an Eraser Tool with Fabric.js Including Restore Functionality
Setting Up Fabric.js with Eraser Support
The standard Fabric.js package doesn't include eraser functionality out of the box. To use this feature, you'll need either a custom build from the FabricJS builder or the fabric-with-erasing npm package.
Using npm
npm install fabric-with-erasing
This package bundles Fabric.js 5.2 with eraser support in ...
Posted on Wed, 05 Aug 2026 16:57:44 +0000 by not_skeletor
Implementing and Customizing the Circle Brush in Fabric.js
To utilize Fabric.js for free-hand drawing with a unique dotted effect, you must first activate the drawing mode on the canvas. This is achieved by setting the isDrawingMode property to true. The following code initializes the canvas and enables this mode.
const canvas = new fabric.Canvas('myCanvas', {
width: 800,
height: 500,
isDra ...
Posted on Tue, 04 Aug 2026 16:54:35 +0000 by dbrimlow
Practical p5.js Canvas Management: Creation, Parent Binding, Dynamic Resizing, Scrollbar Removal, and Deletion
If a p5.js sketch includes core lifecycle functions like setup() or draw() with out explicit canvas initialization, p5.js automatically appends a 100x100 pixel <canvas> to the <body> element.
function setup() {
background(200);
}
To define custom dimensions, use createCanvas(width, height) and pass numeric values for width and he ...
Posted on Fri, 31 Jul 2026 16:50:42 +0000 by nealios
Detecting Object Overlap in Fabric.js with intersectsWithObject
The intersectsWithObject() method in Fabric.js checks whether one graphical object overlaps with another on the canvas. This functionality supports features like collision prevention and automatic alignmnet in interactive applications.
In a practical example, create a canvas and add multiple shapes—such as rectangles, circles, and triangles. At ...
Posted on Wed, 29 Jul 2026 16:10:41 +0000 by klevis miho
Fabric.js Viewport Transformation Matrix Explained
Fabric.js provides viewport manipulation capabilities through the viewportTransform property, allowing developers to control how the entire canvas appears to users.
The viewportTransform property leverages native canvas transformation functionality, essentially wrapping the canvas 2D API's transform() method. According to the official documenta ...
Posted on Fri, 17 Jul 2026 16:15:50 +0000 by Magicman0022
Essential HTML5 Development Concepts and Practical Implementations
HTML5 is a modern iteration of the HyperText Markup Language, primarily designed to support multimedia content natively on mobile devices, eliminating heavy reliance on plugins like Flash through elements such as , , and .
Key enhancements in HTML5 include:
Removal of outdated presentation tags (e.g., , )
Introduction of new form controls for ...
Posted on Thu, 16 Jul 2026 17:21:52 +0000 by bike5
Implementing Canvas Panning with Fabric.js
Core Implementation
Fabric.js canvas objects do not support panning functionality by default. This behavior can be implemented through custom event handling that tracks mouse movements and adjusts the viewport accordingly.
The dragging mechanism follows three fundamental steps:
Mouse button press initiates the drag operation
Mouse movement upd ...
Posted on Wed, 08 Jul 2026 16:29:06 +0000 by choppsta
Implementing Custom Fonts in Fabric.js Applications
Integrating custom typefaces into a Fabric.js environment requires managing the asynchronous nature of font loading. Since the canvas renders text immediately, accessing a font resource before it has fully downloaded will cause the browser to fall back to a default system font. To ensure visual consistency, the application must wait for the fon ...
Posted on Wed, 08 Jul 2026 16:06:47 +0000 by NovaHaCker
Implementing Texture Brush Functionality in Fabric.js
Fabric.js provides a texture brush (PatternBrush) functionality for drawing with image-based patterns. The following outlines the core implementation steps and configuration.
Core Implementation Steps
1. Enable Drawing Mode
Initialize a canvas with isDrawingMode set to true.
const canvas = new fabric.Canvas('canvasElementId', {
width: 400,
...
Posted on Thu, 02 Jul 2026 16:15:00 +0000 by Xeon
Creating Dynamic Path Animations with HTML5 Canvas
A canvas path represents a sequence of points cnonected by lines and curves. The Canvas 2D API provides methods to build and render these paths, giving you fine-grained control over complex shapes.
Core Drawing Commands
Paths rely on a small set of commands:
moveTo(x, y) – lifts the pen and sets a new starting point.
lineTo(x, y) – draws a st ...
Posted on Tue, 23 Jun 2026 17:04:51 +0000 by churdaddy