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@deck.gl/extensions

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@deck.gl/extensions

Plug-and-play functionalities for deck.gl layers

  • 9.0.36
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  • npm
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What is @deck.gl/extensions?

@deck.gl/extensions is a collection of extensions for the deck.gl library, which is used for creating high-performance, WebGL-powered visualizations. These extensions provide additional functionalities such as data filtering, 3D terrain, and advanced rendering techniques.

What are @deck.gl/extensions's main functionalities?

Data Filtering

The DataFilterExtension allows you to filter data points based on a specified range. This is useful for visualizing subsets of data dynamically.

const { DataFilterExtension } = require('@deck.gl/extensions');

const layer = new ScatterplotLayer({
  data: myData,
  getPosition: d => d.coordinates,
  getRadius: d => d.radius,
  getColor: d => d.color,
  extensions: [new DataFilterExtension({filterSize: 1})],
  filterRange: [0, 100]
});

3D Terrain

The TerrainExtension allows you to overlay 2D tiles on 3D terrain, providing a more realistic visualization of geographical data.

const { TerrainExtension } = require('@deck.gl/extensions');

const layer = new TileLayer({
  data: 'https://tile-server.com/tiles/{z}/{x}/{y}.png',
  minZoom: 0,
  maxZoom: 23,
  tileSize: 256,
  renderSubLayers: props => new BitmapLayer(props),
  extensions: [new TerrainExtension({terrainImage: 'https://terrain-server.com/terrain.png',
                                      terrainBounds: [west, south, east, north]})]
});

Advanced Rendering

The BrushingExtension allows for interactive data brushing, where users can highlight and filter data points within a specified radius.

const { BrushingExtension } = require('@deck.gl/extensions');

const layer = new ScatterplotLayer({
  data: myData,
  getPosition: d => d.coordinates,
  getRadius: d => d.radius,
  getColor: d => d.color,
  extensions: [new BrushingExtension()],
  brushingRadius: 1000,
  brushingTarget: [longitude, latitude]
});

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Package last updated on 24 Nov 2024

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