README.en-US.md · 梁波/L7

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🌍 Large-scale WebGL-powered Geospatial data visualization analysis framework.

[![travis ci](https://travis-ci.com/antvis/L7.svg?branch=master)](https://travis-ci.com/antvis/L7) [![](https://flat.badgen.net/npm/v/@antv/l7?icon=npm)](https://www.npmjs.com/package/@antv/l7) ![最近提交](https://badgen.net/github/last-commit/antvis/L7)

<p align="center">
  <a href="https://l7.antv.antgroup.com/tutorial/quickstart">Tutorials</a> •
  <a href="https://l7.antv.antgroup.com/api/scene">API documentation</a> •
  <a href="https://l7.antv.antgroup.com/examples">Examples</a> •
  <a href="./.github/CONTRIBUTING.md">Contributor</a>
</p>

![L7 demo](https://gw.alipayobjects.com/mdn/rms_855bab/afts/img/A*S-73QpO8d0YAAAAAAAAAAABkARQnAQ)

</div>

Powered by WebGL, the rendering technology of L7 supports fast and efficient rendering of big data, 2D/3D rendering, possible through calculation and analysis of spatial data by GPU Parallel Compu-ting.

L7 focuses on geographic data expressiveness，interaction and design of geographic visualization layers. The basemaps on the platform are powered by third-party services

## 🌟 Highlight features of L7 2.0

- 🌏 Data-driven Visualization

Layer visualization API design base Semiology of Graphics.

It supports rich map visualization types for a better insight on data.

- 🌏 High performance rendering with 2D/3D effect
  Real-time and dynamic rendering with millions of spatial data.

- 🌏 Simple and flexible data format

L7 supports a wide variety of data formats including CSV, JSON, geojson, among others, eliminating the need to run conversions ahead of time.

- 🌏 Multi-basemap

For global users, Mapbox is easy to be embedded by a simple line of code.

## Getting Started

### 📦 Installation

```bash
npm install @antv/l7
```

### Init Map by L7 scene

```javascript
import { Scene } from '@antv/l7';
import { Mapbox } from '@antv/l7-maps';

const scene = new Scene({
  id: 'map',
  map: new Mapbox({
    style: 'light',
    pitch: 0,
    center: [107.054293, 35.246265],
    zoom: 4.056,
  }),
});
```

### Add Layer

```javascript
import { PointLayer } from '@antv/l7';

const pointLayer = new PointLayer()
  .source(data)
  .shape('circle')
  .size('mag', [1, 25])
  .color('mag', ['#5B8FF9', '#5CCEA1'])
  .style({
    opacity: 0.3,
    strokeWidth: 1,
  });

scene.addLayer(pointLayer);
```

## 🔗 Links

- [L7Draw](https://github.com/antvis/L7Draw)
- [L7Plot](https://github.com/antvis/L7Plot)
- [LarkMap](https://github.com/antvis/LarkMap)
- [LocationInsight](https://locationinsight.antv.antgroup.com)

## ✅ License

[MIT license](./LICENSE).

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