@antv/g2

What is @antv/g2?

@antv/g2 is a powerful and flexible data visualization library for creating a wide range of charts and graphs. It is designed to be highly customizable and supports a variety of chart types, including bar charts, line charts, pie charts, and more. The library is built on top of the AntV visualization ecosystem and provides a declarative syntax for defining visualizations.

What are @antv/g2's main functionalities?

Bar Chart

This code creates a simple bar chart using the @antv/g2 library. It defines a dataset and uses the `interval` geometry to create bars representing the data.

const { Chart } = require('@antv/g2');
const data = [
  { genre: 'Sports', sold: 275 },
  { genre: 'Strategy', sold: 115 },
  { genre: 'Action', sold: 120 },
  { genre: 'Shooter', sold: 350 },
  { genre: 'Other', sold: 150 }
];
const chart = new Chart({ container: 'container', autoFit: true, height: 500 });
chart.data(data);
chart.interval().position('genre*sold');
chart.render();

Line Chart

This code creates a line chart using the @antv/g2 library. It defines a dataset and uses the `line` geometry to create a line representing the data over time.

const { Chart } = require('@antv/g2');
const data = [
  { year: '1991', value: 3 },
  { year: '1992', value: 4 },
  { year: '1993', value: 3.5 },
  { year: '1994', value: 5 },
  { year: '1995', value: 4.9 },
  { year: '1996', value: 6 },
  { year: '1997', value: 7 },
  { year: '1998', value: 9 },
  { year: '1999', value: 13 }
];
const chart = new Chart({ container: 'container', autoFit: true, height: 500 });
chart.data(data);
chart.scale({ year: { range: [0, 1] }, value: { min: 0 } });
chart.line().position('year*value');
chart.render();

Pie Chart

This code creates a pie chart using the @antv/g2 library. It defines a dataset and uses the `interval` geometry with a `theta` coordinate to create slices representing the data.

const { Chart } = require('@antv/g2');
const data = [
  { item: 'A', count: 40 },
  { item: 'B', count: 21 },
  { item: 'C', count: 17 },
  { item: 'D', count: 13 },
  { item: 'E', count: 9 }
];
const chart = new Chart({ container: 'container', autoFit: true, height: 500 });
chart.data(data);
chart.coordinate('theta', { radius: 0.75 });
chart.interval().position('count').color('item').adjust('stack');
chart.render();

Other packages similar to @antv/g2

chart.js

Chart.js is a popular open-source library for creating simple yet flexible charts. It supports a variety of chart types, including bar, line, and pie charts. Compared to @antv/g2, Chart.js is easier to get started with but may lack some of the advanced customization options.

d3

D3.js is a powerful library for creating complex and highly customizable data visualizations. It provides low-level building blocks for creating a wide range of visualizations. Compared to @antv/g2, D3.js offers more control and flexibility but has a steeper learning curve.

highcharts

Highcharts is a commercial charting library that offers a wide range of chart types and extensive customization options. It is known for its high-quality visualizations and ease of use. Compared to @antv/g2, Highcharts provides more out-of-the-box features but requires a license for commercial use.

README

English | 简体中文

G2 5.0

G2 is a visualization grammar for dashboard building, data exploration and storytelling.

G2 is named after Leland Wilkinson’s book The Grammar of Graphics and was profoundly inspired by it in the very beginning. Here are some resources you can begin with:

• Introduction - a brief overview and G2's motivations
• Examples - a large number of demos to learn from and copy-paste
• Tutorials - interactive case-driven guides of G2's core concepts
• API Reference - complete documentation for all visualization components

✨ Features

• Progressive Usage - The main objective of G2 is to help you get meaningful visualizations quickly with concise declarations and it infers the rest. But you can configure much more for complex and advanced situations.
• Declarative API - We employs a functional declarative API to specify chart options in a programmatic fashion, which contributes to better logic reuse and more flexible code organization.
• High Extensibility - To satisfy specific needs, G2 provides a convenient and consistent mechanism to extend everything you can imagine, whether a scale, a transform, a mark, etc,. You can even customize a brand new visualization tool based on this mechanism.
• Comprehensive Grammar - G2 rejects a chart typology in favor of marks, transforms, scales, coordinates, and compositions. In addition to static visual representations, it's possible to declare data-driven animations and apply well-designed action-based interactions to plots as well.
• Powerful Renderer - There is a powerful renderer G under G2 to generate web-based visualizations using Canvas, SVG or WebGL. The plenty of plugins it has benefit G2 from rendering charts with novel styles such as hand-drawn and fully embrace the ecosystem of D3.

🔨 Getting Started

G2 is usually installed via a package manager such as npm or Yarn.

$ npm install @antv/g2@next

$ yarn add @antv/g2@next

The Chart object then can be imported from G2.

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

import { Chart } from '@antv/g2';

// A tabular data to be visualized.
const data = [
  { genre: 'Sports', sold: 275 },
  { genre: 'Strategy', sold: 115 },
  { genre: 'Action', sold: 120 },
  { genre: 'Shooter', sold: 350 },
  { genre: 'Other', sold: 150 },
];

// Instantiate a new chart.
const chart = new Chart({
  container: 'container',
  theme: 'classic',
});

// Specify visualization.
chart
  .interval()           // Create an interval mark and add it to the chart.
  .data(data)           // Bind data for this mark.
  .encode('x', 'genre') // Assign genre column to x position channel.
  .encode('y', 'sold'); // Assign sold column to y position channel.

// Render visualization。
chart.render();

If all goes well, you can get the following lovely bar chart!

📮 Contributing

• Issues - report bugs or request features
• Contributing Guide - help build G2
• Discussions - discuss on GitHub or in DingTalk group(30233731, 35686967, 44788198)

📄 License

MIT@AntV.