dev-itsheng / g

💥 A flexible rendering engine for visualization.

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G

As the underlying rendering engine of AntV, G is dedicated to provide consistent and high performance 2D / 3D graphics rendering capabilities for upper layer products, adapting all underlying rendering APIs (Canvas2D / SVG / WebGL / WebGPU / CanvasKit / Node.js) on the web side. In particular, it provides GPGPU support for algorithms suitable for parallel computing in graph scenarios.

✨ Features

Easy-to-use API。The graphics and event system is compatible with DOM Element & Event API, and the animation system is compatible with Web Animations API, which can be adapted to the existing ecosystem of Web side such as D3, Hammer.js gesture library, etc. at a very low cost.

Support multiple rendering environments。Support Canvas2D / SVG / WebGL / WebGPU / CanvasKit and runtime switching, and also server-side rendering.

High performance rendering and computing。WebGPU-based GPGPU support for parallelizable algorithms. webgpu-graph is a library of graph analysis algorithms using GPU acceleration.

Extensible plug-in mechanism and rich set of plug-ins：

• Rendering Related
  • g-plugin-canvas-renderer Rendering 2D graphics based on Canvas2D.
  • g-plugin-svg-renderer Rendering 2D graphics based on SVG.
  • g-plugin-device-renderer Rendering 2D graphics based on GPUDevice.
  • g-plugin-html-renderer Rendering DOM with HTML.
  • g-plugin-3d Extended 3D capabilities.
  • g-plugin-rough-canvas-renderer Perform hand-drawn style rendering with rough.js and Canvs2D.
  • g-plugin-rough-svg-renderer Perform hand-drawn style rendering with rough.js and SVG.
  • g-plugin-canvaskit-renderer Rendering 2D graphics based on Skia.
• Picking
  • g-plugin-canvas-picker Do picking with Canvas2D and mathematical calculations.
  • g-plugin-svg-picker Do picking with SVG and DOM API.
• Interaction
  • g-plugin-dom-interaction Binds event listeners with DOM API.
  • g-plugin-control Provides camera interaction for 3D scenes.
  • g-plugin-dragndrop Provides Drag 'n' Drop based on PointerEvents.
• Physics Engine
  • g-plugin-box2d Based on Box2D.
  • g-plugin-matterjs Based on matter.js.
  • g-plugin-physx Based on PhysX.
• Layout Engine
  • g-plugin-yoga Provides Flex layout capabilities based on Yoga.
• GPGPU
  • g-plugin-gpgpu Provides GPGPU capabilities based on WebGPU.
• CSS Selector
  • g-plugin-css-select Supports for retrieval in the scene graph using CSS selectors.
• A11y
  • g-plugin-a11y Provides accessibility features.

📦 Install

# Install Core
$ npm install @antv/g --save
# Canvas Renderer
$ npm install @antv/g-canvas --save
# SVG Renderer
$ npm install @antv/g-svg --save
# WebGL Renderer
$ npm install @antv/g-webgl --save

🔨 Usage

<div id="container"></div>

import { Circle, Canvas, CanvasEvent } from '@antv/g';
import { Renderer as CanvasRenderer } from '@antv/g-canvas';
// or
// import { Renderer as WebGLRenderer } from '@antv/g-webgl';
// import { Renderer as SVGRenderer } from '@antv/g-svg';

// create a canvas
const canvas = new Canvas({
    container: 'container',
    width: 500,
    height: 500,
    renderer: new CanvasRenderer(), // select a renderer
});

// create a circle
const circle = new Circle({
    style: {
        cx: 100,
        cy: 100,
        r: 50,
        fill: 'red',
        stroke: 'blue',
        lineWidth: 5,
    },
});

canvas.addEventListener(CanvasEvent.READY, function () {
    // append to canvas
    canvas.appendChild(circle);

    // add listener for `click` event
    circle.addEventListener('click', function () {
        this.style.fill = 'green';
    });
});

⌨️ Development

Start previewing site:

$ git clone [email protected]:antvis/g.git
$ cd g
$ yarn install
$ yarn start

API Spec

Start a dev-server on root dir, eg. http-server:

$ http-server -p 9090

Open api.html on localhost:9090/spec/api.html.

Run test cases

Build and run test cases:

$ yarn build
$ yarn test

Run site demos

$ cd ./site
$ yarn install
$ cd ../
$ yarn link-site

Inspired by

• Sprite.js
• Pixi.js
• PlayCanvas
• Webkit

Contributors

dengfuping	xiaoiver	dxq613	dependabot-preview[bot]	afc163	zhanba
limichange	entronad	hustcc	simaQ	zqlu	Deturium
Yanyan-Wang	elaine1234	visiky	baizn	terence55	budlion
luoxupan	Leannechn

This project follows the git-contributor spec, auto updated at Tue Dec 07 2021 10:00:16 GMT+0800.