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({
        apiBaseUrl: 'https://gcp-us-east1.api.carto.com',
        apiVersion: deck.carto.API_VERSIONS.V3,
        accessToken: 'eyJhbGciOiJIUzI1NiJ9.eyJhIjoiYWNfbHFlM3p3Z3UiLCJqdGkiOiI1YjI0OWE2ZCJ9.Y7zB30NJFzq5fPv8W5nkoH5lPXFWQP0uywDtqUg8y8c'
      });

      // Fetch Data from CARTO
      const geojsonData = deck.carto.getData({
          type: deck.carto.MAP_TYPES.QUERY,
          source: `SELECT geom, scalerank FROM cartobq.public_account.airports_to_london WHERE scalerank > 7`,
          connection: 'bqconn',
          format: deck.carto.FORMATS.GEOJSON
      });

      const deckOverlay = new deck.GoogleMapsOverlay({
        layers: [
          new deck.ArcLayer({
            id: 'arc-layer',
            data: geojsonData.then(data => data.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>