README.en-US.md · 无潮海/L7

<img src="https://gw.alipayobjects.com/zos/antfincdn/R8sN%24GNdh6/language.svg" width="18"> English | [简体中文](./README.md)

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

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<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="./CONTRIBUTING.en-US.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);
```

## 🔗 Ecosystem

- [L7Draw](https://github.com/antvis/L7Draw)
- [L7Plot](https://github.com/antvis/L7Plot)
- [LarkMap](https://github.com/antvis/LarkMap)
- [L7VP](https://locationinsight.antv.antgroup.com)
- [L7Editor](https://l7editor.antv.antgroup.com)

## 🤝 Contributing

To become a contributor, please follow our [contributing guide](./CONTRIBUTING.en-US.md). If you are an active contributor, you can apply to be a outside collaborator.

![https://github.com/antvis/l7/graphs/contributors](https://contrib.rocks/image?repo=antvis/l7)

## 📄 License

The scripts and documentation in this project are released under the [MIT license](./LICENSE).

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