$ show hepengwei/visualization-collection
This repository is a comprehensive frontend visual effects collection and demonstration platform. It contains over 100 self-contained demos and tools covering CSS animations, Canvas 2D/WebGL effects, Three.js 3D scenes, ECharts data visualizations, AI/ML integrations (TensorFlow.js for pose detection and body segmentation, MediaPipe, Tesseract.js OCR), and client-side media processing (image, video, PDF). The architecture is a React 18 single-page application (SPA) using TypeScript, Webpack 5, Ant Design, and react-intl for internationalization. All processing occurs entirely in the browser; there is no backend or persistent data store. The project serves as both a personal portfolio and a learning resource for advanced frontend techniques, but it is not a single-purpose production application. The code quality varies widely: some components demonstrate high craftsmanship (e.g., custom PNG encoder, image manipulation utilities, cross-page communication hook), while many others are boilerplate-heavy duplicates or exploratory demos. No automated tests are present, and the build output includes large minified chunks alongside source code, creating maintenance overhead.
The LLM identified 4 files worth highlighting for reuse:
A self-contained JavaScript library for encoding and decoding PNG images, including quantization, filtering, and deflate compression. It implements the full PNG specification (IHDR, IDAT, IEND, tRNS chunks) and supports 8-bit and RGBA formats. This is a non-trivial, portable module that can be extracted and reused in any JavaScript project for client-side PNG manipulation without external dependencies.
A comprehensive collection of image processing functions using the HTML Canvas API. It provides operations such as flip, rotate, grayscale, brightness/contrast adjustment, Gaussian blur, sharpen, edge detection, color channel filtering, watermarking, mosaic, compression, and format conversion. Each function is a pure, stateless utility operating on ImageData or HTMLImageElement, making them reusable in any canvas-based project.
A React hook that enables synchronized state between two browser windows or iframes using localStorage events and postMessage. It implements a publish-subscribe pattern with a shared storage key, allowing components in separate tabs/frames to react to real-time changes. The hook manages cleanup and event listener lifecycle, demonstrating a non-obvious pattern for cross-origin communication without a backend.
A responsive grid layout component that dynamically adjusts column counts based on screen width breakpoints (1 column for mobile, 2 for tablet, 4 for desktop). It accepts a data array, renders children in a CSS Grid, and supports optional title sections. The component is self-contained, uses CSS modules for styling, and can be extracted and reused in any React project that needs a flexible card grid layout.