PointLabelLayer

by felixp

HTML

<!DOCTYPE html>
<html>

  <head>
    <title>Labels</title>
    
    <!-- Maplibre & deck.gl imports -->
    <script src="https://unpkg.com/[email protected]/dist/maplibre-gl.js"></script>
    <link href="https://unpkg.com/[email protected]/dist/maplibre-gl.css" rel="stylesheet" />
    <script src="https://unpkg.com/[email protected]/dist.min.js"></script>
    <script src="https://unpkg.com/@deck.gl/[email protected]/dist.min.js"></script>

  </head>

  <body>
    <div id="map"></div>
  </body>
</html>

CSS

body {
  margin: 0;
  padding: 0; 
}
#map{
  width: 100vw;
  height: 100vh;
}

JavaScript

const AIRPORTS = 'https://raw.githubusercontent.com/visgl/deck.gl-data/master/examples/line/airports.json'
const collisionFilterExtension = new deck.CollisionFilterExtension();

const deckgl = new deck.DeckGL({
  // Basemap style
  container: 'map',
  // Can also use 'positron', 'dark-matter' instead of voyager
  mapStyle: "https://basemaps.cartocdn.com/gl/positron-nolabels-gl-style/style.json",

  // Initial map location
  initialViewState: {latitude: 50, longitude: 10, zoom: 3},
  controller: true,

  // Visualization overlay
  layers: [
    new deck.ScatterplotLayer({
      data: AIRPORTS,
      getPosition: item => item.coordinates,
      radiusMinPixels: 2
    }),
    new deck.carto._PointLabelLayer({
      data: AIRPORTS,
      extensions: [collisionFilterExtension],
      getPosition: d => d.coordinates,
      getText: d => d.name,
      getSecondaryText: d => d.abbrev,

      getColor: d => [2, 5, 11],
      sizeScale: 13,
      getSecondaryColor: d => [102, 105, 111],
      secondarySizeScale: 10,

      getTextAnchor: 'start',
      outlineColor: [255, 255, 255],
      fontSettings: {sdf: true},
      outlineWidth: 2
    }),
  ]
});