Freaks City

Fabric.js automaticaly filters out non-standard properties when exporting canvas data via built-in serialization methods. By default, attributes appended directly to shape instances are stripped during the conversion process to prevent bloating the resulting payload with unsupported fields. When instantiating a drawing object, developers often ...

Overview Most developers use p5.js for drawing and creative coding, but the library also handles video playback from files and live camera streams. This guide covers the esssentials of working with video in p5.js. Video File Playback p5.js offers two approaches for video playback: rendering through a native <video> element or drawing fram ...

When creating objects in Fabric.js, the default scaling origin point is positioned at the opposite corner of the element's control points. This behavior may not always align with your requirements. Holding the alt key during a scaling operation shifts the origin to the element's center. However, you can configure the default behavior so that al ...

To build gradient effects in a Vue 3 application using Fabric.js, you can create both linear and radial color transitions directly on canvas objects. Thelux explained demonstrates how to define, configure, and apply these gradients. Start by scaffolding a Vue 3 project with Vite if needed: npm init @vitejs/app Select Vue 3 and complete the pro ...

Applying italic styling to text created with IText in Fabric.js can be configured during initial creation or manipulated dynamically by user interaction. Setting up the Canvas Begin by initializing a Fabric.js canvas and adding an IText object. <canvas id="mainCanvas" width="400" height="200"></canvas> ...

A frequent issue when working with file upload components in mini-programs is broken image previews—typically indicated by a exclamation mark icon and accompanied by a 404 status. While the root cause can sometimes be an incorrect file format, another subtle culprit is excessive image resolution. Files under 20 MB upload successfully, but previ ...

Core Principles To create rectangles via a "drag-to-select" method, focus on two key actions: Capture start coordinates (mouse button pressed) and end coordinates (mouse button released). After releasing the mouse, use the two coordinates to calculate the rectangle’s dimensions (width/height) and position. Fabric.js provides event l ...

Parent Component for Image Upload Create an upload button that trigegrs the file selection dialog: uni.chooseMessageFile({ extension: [".jpg", ".png", ".jpeg"], success: (res) => { const paths = res.tempFiles.map((item) => item.path); uni.navigateTo({ url: `/pages/document/detail?files=${pat ...

Images captured by iOS device cameras often appear rotated 90 degrees when displayed in web applications. This occurs due to orientation metdaata stored in the image's EXIF data, which requires manual correction for proper rendering. The issue primarily affects iOS and certain Samsung devices. The solution involves reading EXIF orientation tags ...

When you need more visual flexibility than a solid color overlay for your Fabric.js canvas, the library supports image-based foreground masking. Unlike solid color overlays that automatically span the entire canvas regardless of viewport changes, image overlays require consideration of their inherent dimensions and interactions with panning and ...