CARTO + Google Maps

CARTO + Google Maps

Arc Layer

This example shows how to use the ArcLayer to render raised arcs joining pairs of source and target points.

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<!DOCTYPE html>
<html>
  <head>
    <title>Arc Layer</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <script src="https://unpkg.com/deck.gl@^8.6.0/dist.min.js"></script>
    <script src="https://unpkg.com/@deck.gl/carto@^8.6.0/dist.min.js"></script>
    <style>
      #map {
        height: 100%;
      }

      html,
      body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
    </style>
  </head>

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

    <script  
      src="https://maps.googleapis.com/maps/api/js?key=AIzaSyDvHtBZM79O5uGTBT1ZOWOKW2_FVMstHNs&callback=initMap&libraries=&v=beta"
      async
    ></script>

  </body>

  <script type="text/javascript">
    let map;

    function initMap() {
      map = new google.maps.Map(document.getElementById("map"), {
        center: { lat: 30, lng: 10 },
        zoom: 2,
        tilt: 30,
        mapId: '716bc8b1cc71ef3b',
        fullscreenControl: false,
        streetViewControl: false,
        zoomControlOptions: {
          position: google.maps.ControlPosition.LEFT_BOTTOM,
        },
      });

      deck.carto.setDefaultCredentials({
        username: 'public',
        apiKey: 'default_public'
      });

      // Fetch Data from CARTO
      // Notice that you can use any Deck.gl layer with CARTO datasets getting GeoJSON data from CARTO's API.
      const fetchData = () => {
        const url = 'https://public.carto.com/api/v2/sql?q=SELECT the_geom, scalerank FROM airports_to_london WHERE scalerank > 7&format=geojson';
        return(fetch(url).then(response => response.json()));
      }

      const deckOverlay = new deck.GoogleMapsOverlay({
        layers: [
          new deck.ArcLayer({
            id: 'arc-layer',
            data: fetchData().then(geojsonData => geojsonData.features),
            getSourcePosition: f => [-0.4531566, 51.4709959], // London
            getTargetPosition: f => f.geometry.coordinates,
            getSourceColor: [0, 128, 200],
            getTargetColor: [200, 0, 80],
            getWidth: 1
          })
        ]
      });

      deckOverlay.setMap(map);
    }

  </script>
</html>