Google Maps and deck.gl GeoJsonLayer

Visualizing thousands of points

This example visualizes recent earthquakes using the deck.gl GeoJsonLayer and a ScatterPlot of earthquakes.

Loading deck.gl

The below script can be added to the HTML so that deck is globally available. See the sample source for the usage in this sample.

<script src="https://unpkg.com/deck.gl@^7.0.0/dist.min.js"></script>

For more information, see https://deck.gl/.

TypeScript

// Initialize and add the map
function initMap(): void {
  const map = new google.maps.Map(
    document.getElementById("map") as HTMLElement,
    {
      center: { lat: 40, lng: -110 },
      zoom: 4,
    }
  );

  // @ts-ignore TODO(jpoehnelt) fix deckgl typings
  const deckOverlay = new deck.GoogleMapsOverlay({
    layers: [
      // @ts-ignore TODO(jpoehnelt) fix deckgl typings
      new deck.GeoJsonLayer({
        id: "earthquakes",
        data:
          "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson",
        filled: true,
        pointRadiusMinPixels: 2,
        pointRadiusMaxPixels: 200,
        opacity: 0.4,
        pointRadiusScale: 0.3,
        getRadius: (f: any) => Math.pow(10, f.properties.mag),
        getFillColor: [255, 70, 30, 180],
        autoHighlight: true,
        transitions: {
          getRadius: {
            type: "spring",
            stiffness: 0.1,
            damping: 0.15,
            enter: (_) => [0], // grow from size 0,
            duration: 10000,
          },
        },
        onDataLoad: (_) => {
          // @ts-ignore defined in include
          progress.done(); // hides progress bar
        },
      }),
    ],
  });

  deckOverlay.setMap(map);
}
index.ts

JavaScript

/* eslint-disable no-undef */
// Initialize and add the map
function initMap() {
  const map = new google.maps.Map(document.getElementById("map"), {
    center: { lat: 40, lng: -110 },
    zoom: 4,
  });
  const deckOverlay = new deck.GoogleMapsOverlay({
    layers: [
      new deck.GeoJsonLayer({
        id: "earthquakes",
        data:
          "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson",
        filled: true,
        pointRadiusMinPixels: 2,
        pointRadiusMaxPixels: 200,
        opacity: 0.4,
        pointRadiusScale: 0.3,
        getRadius: (f) => Math.pow(10, f.properties.mag),
        getFillColor: [255, 70, 30, 180],
        autoHighlight: true,
        transitions: {
          getRadius: {
            type: "spring",
            stiffness: 0.1,
            damping: 0.15,
            enter: (_) => [0],
            duration: 10000,
          },
        },
        onDataLoad: (_) => {
          progress.done(); // hides progress bar
        },
      }),
    ],
  });
  deckOverlay.setMap(map);
}

index.js

CSS

/* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
#map {
  height: 100%;
}

/* Optional: Makes the sample page fill the window. */
html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

style.css

HTML

<!DOCTYPE html>
<html>
  <head>
    <title>deck.gl and Google Maps Platform</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <!-- Use Material Design Progress indicator -->
    <link
      href="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.css"
      rel="stylesheet"
    />
    <script src="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.min.js"></script>
    <!-- Load deck.gl -->
    <script src="https://unpkg.com/deck.gl@^7.0.0/dist.min.js"></script>

    <link rel="stylesheet" type="text/css" href="./style.css" />
    <script src="./index.js"></script>
  </head>
  <body>
    <div
      role="progressbar"
      class="mdc-linear-progress"
      aria-label="Data Progress Bar"
    >
      <div class="mdc-linear-progress__buffer">
        <div class="mdc-linear-progress__buffer-bar"></div>
        <div class="mdc-linear-progress__buffer-dots"></div>
      </div>
      <div class="mdc-linear-progress__bar mdc-linear-progress__primary-bar">
        <span class="mdc-linear-progress__bar-inner"></span>
      </div>
      <div class="mdc-linear-progress__bar mdc-linear-progress__secondary-bar">
        <span class="mdc-linear-progress__bar-inner"></span>
      </div>
    </div>
    <script>
      var progress, progressDiv;
      progressDiv = document.querySelector(".mdc-linear-progress");
      progress = new mdc.linearProgress.MDCLinearProgress(progressDiv);
      progress.open();
      progress.determinate = false;
      progress.done = function () {
        progress.close();
        progressDiv.remove();
      };
    </script>
    <div id="map"></div>

    <!-- Async script executes immediately and must be after any DOM elements used in callback. -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      async
    ></script>
  </body>
</html>
sample.html

All

<!DOCTYPE html>
<html>
  <head>
    <title>deck.gl and Google Maps Platform</title>
    <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
    <!-- Use Material Design Progress indicator -->
    <link
      href="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.css"
      rel="stylesheet"
    />
    <script src="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.min.js"></script>
    <!-- Load deck.gl -->
    <script src="https://unpkg.com/deck.gl@^7.0.0/dist.min.js"></script>

    <style type="text/css">
      :root {
        --mdc-theme-primary: #1a73e8;
        --mdc-theme-secondary: #rgb(225, 245, 254);
        --mdc-theme-on-primary: #fff;
        --mdc-theme-on-secondary: rgb(1, 87, 155);
      }

      .mdc-text-field--focused:not(.mdc-text-field--disabled)
        .mdc-floating-label {
        color: var(--mdc-theme-primary);
      }

      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 100%;
      }

      /* Optional: Makes the sample page fill the window. */
      html,
      body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
    </style>
    <script>
      /* eslint-disable no-undef */
      // Initialize and add the map
      function initMap() {
        const map = new google.maps.Map(document.getElementById("map"), {
          center: { lat: 40, lng: -110 },
          zoom: 4,
        });
        const deckOverlay = new deck.GoogleMapsOverlay({
          layers: [
            new deck.GeoJsonLayer({
              id: "earthquakes",
              data:
                "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson",
              filled: true,
              pointRadiusMinPixels: 2,
              pointRadiusMaxPixels: 200,
              opacity: 0.4,
              pointRadiusScale: 0.3,
              getRadius: (f) => Math.pow(10, f.properties.mag),
              getFillColor: [255, 70, 30, 180],
              autoHighlight: true,
              transitions: {
                getRadius: {
                  type: "spring",
                  stiffness: 0.1,
                  damping: 0.15,
                  enter: (_) => [0],
                  duration: 10000,
                },
              },
              onDataLoad: (_) => {
                progress.done(); // hides progress bar
              },
            }),
          ],
        });
        deckOverlay.setMap(map);
      }
    </script>
  </head>
  <body>
    <div
      role="progressbar"
      class="mdc-linear-progress"
      aria-label="Data Progress Bar"
    >
      <div class="mdc-linear-progress__buffer">
        <div class="mdc-linear-progress__buffer-bar"></div>
        <div class="mdc-linear-progress__buffer-dots"></div>
      </div>
      <div class="mdc-linear-progress__bar mdc-linear-progress__primary-bar">
        <span class="mdc-linear-progress__bar-inner"></span>
      </div>
      <div class="mdc-linear-progress__bar mdc-linear-progress__secondary-bar">
        <span class="mdc-linear-progress__bar-inner"></span>
      </div>
    </div>
    <script>
      var progress, progressDiv;
      progressDiv = document.querySelector(".mdc-linear-progress");
      progress = new mdc.linearProgress.MDCLinearProgress(progressDiv);
      progress.open();
      progress.determinate = false;
      progress.done = function () {
        progress.close();
        progressDiv.remove();
      };
    </script>
    <div id="map"></div>

    <!-- Async script executes immediately and must be after any DOM elements used in callback. -->
    <script
      src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap&libraries=&v=weekly"
      async
    ></script>
  </body>
</html>

inline.html
/* eslint-disable no-undef */ // Initialize and add the map function initMap() { const map = new google.maps.Map(document.getElementById("map"), { center: { lat: 40, lng: -110 }, zoom: 4, }); const deckOverlay = new deck.GoogleMapsOverlay({ layers: [ new deck.GeoJsonLayer({ id: "earthquakes", data: "https://earthquake.usgs.gov/earthquakes/feed/v1.0/summary/all_month.geojson", filled: true, pointRadiusMinPixels: 2, pointRadiusMaxPixels: 200, opacity: 0.4, pointRadiusScale: 0.3, getRadius: (f) => Math.pow(10, f.properties.mag), getFillColor: [255, 70, 30, 180], autoHighlight: true, transitions: { getRadius: { type: "spring", stiffness: 0.1, damping: 0.15, enter: (_) => [0], duration: 10000, }, }, onDataLoad: (_) => { progress.done(); // hides progress bar }, }), ], }); deckOverlay.setMap(map); }
:root { --mdc-theme-primary: #1a73e8; --mdc-theme-secondary: #rgb(225, 245, 254); --mdc-theme-on-primary: #fff; --mdc-theme-on-secondary: rgb(1, 87, 155); } .mdc-text-field--focused:not(.mdc-text-field--disabled) .mdc-floating-label { color: var(--mdc-theme-primary); } /* Always set the map height explicitly to define the size of the div * element that contains the map. */ #map { height: 100%; } /* Optional: Makes the sample page fill the window. */ html, body { height: 100%; margin: 0; padding: 0; }
<!DOCTYPE html> <html> <head> <title>deck.gl and Google Maps Platform</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <!-- Use Material Design Progress indicator --> <link href="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.css" rel="stylesheet" /> <script src="https://unpkg.com/material-components-web@6.0.0/dist/material-components-web.min.js"></script> <!-- Load deck.gl --> <script src="https://unpkg.com/deck.gl@^7.0.0/dist.min.js"></script> <!-- jsFiddle will insert css and js --> </head> <body> <div role="progressbar" class="mdc-linear-progress" aria-label="Data Progress Bar" > <div class="mdc-linear-progress__buffer"> <div class="mdc-linear-progress__buffer-bar"></div> <div class="mdc-linear-progress__buffer-dots"></div> </div> <div class="mdc-linear-progress__bar mdc-linear-progress__primary-bar"> <span class="mdc-linear-progress__bar-inner"></span> </div> <div class="mdc-linear-progress__bar mdc-linear-progress__secondary-bar"> <span class="mdc-linear-progress__bar-inner"></span> </div> </div> <script> var progress, progressDiv; progressDiv = document.querySelector(".mdc-linear-progress"); progress = new mdc.linearProgress.MDCLinearProgress(progressDiv); progress.open(); progress.determinate = false; progress.done = function () { progress.close(); progressDiv.remove(); }; </script> <div id="map"></div> <!-- Async script executes immediately and must be after any DOM elements used in callback. --> <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyBIwzALxUPNbatRBj3Xi1Uhp0fFzwWNBkE&callback=initMap&libraries=&v=weekly" async ></script> </body> </html>

Create a starter application from sample

A skeleton starter application using TypeScript, Webpack, and Babel can be generated from this sample using one of the methods below.

Run Locally

Node.js is required to run this sample locally. Follow these instructions to install Node.js and NPM. 

npx @googlemaps/js-samples init deckgl-points DESTINATION_FOLDER

Run in Google Cloud Shell

Google Cloud Shell is an interactive shell environment for Google Cloud Platform that makes it easy for you to learn and experiment with GCP and manage your projects and resources from your web browser.

Run in Cloud Shell