Distance Matrix Service | Maps JavaScript API | Google for Developers (original) (raw)

This example demonstrates the use of the DistanceMatrixService object to fetch the distances between a set of locations.

Read the documentation.

TypeScript

function initMap(): void { const bounds = new google.maps.LatLngBounds(); const markersArray: google.maps.Marker[] = [];

const map = new google.maps.Map( document.getElementById("map") as HTMLElement, { center: { lat: 55.53, lng: 9.4 }, zoom: 10, } );

// initialize services const geocoder = new google.maps.Geocoder(); const service = new google.maps.DistanceMatrixService();

// build request const origin1 = { lat: 55.93, lng: -3.118 }; const origin2 = "Greenwich, England"; const destinationA = "Stockholm, Sweden"; const destinationB = { lat: 50.087, lng: 14.421 };

const request = { origins: [origin1, origin2], destinations: [destinationA, destinationB], travelMode: google.maps.TravelMode.DRIVING, unitSystem: google.maps.UnitSystem.METRIC, avoidHighways: false, avoidTolls: false, };

// put request on page (document.getElementById("request") as HTMLDivElement).innerText = JSON.stringify(request, null, 2);

// get distance matrix response service.getDistanceMatrix(request).then((response) => { // put response (document.getElementById("response") as HTMLDivElement).innerText = JSON.stringify(response, null, 2);

// show on map
const originList = response.originAddresses;
const destinationList = response.destinationAddresses;

deleteMarkers(markersArray);

const showGeocodedAddressOnMap = (asDestination: boolean) => {
  const handler = ({ results }: google.maps.GeocoderResponse) => {
    map.fitBounds(bounds.extend(results[0].geometry.location));
    markersArray.push(
      new google.maps.Marker({
        map,
        position: results[0].geometry.location,
        label: asDestination ? "D" : "O",
      })
    );
  };

  return handler;
};

for (let i = 0; i < originList.length; i++) {
  const results = response.rows[i].elements;

  geocoder
    .geocode({ address: originList[i] })
    .then(showGeocodedAddressOnMap(false));

  for (let j = 0; j < results.length; j++) {
    geocoder
      .geocode({ address: destinationList[j] })
      .then(showGeocodedAddressOnMap(true));
  }
}

}); }

function deleteMarkers(markersArray: google.maps.Marker[]) { for (let i = 0; i < markersArray.length; i++) { markersArray[i].setMap(null); }

markersArray = []; }

declare global { interface Window { initMap: () => void; } } window.initMap = initMap;

JavaScript

// put request on page document.getElementById("request").innerText = JSON.stringify( request, null, 2, ); // get distance matrix response service.getDistanceMatrix(request).then((response) => { // put response document.getElementById("response").innerText = JSON.stringify( response, null, 2, );

// show on map
const originList = response.originAddresses;
const destinationList = response.destinationAddresses;

deleteMarkers(markersArray);

const showGeocodedAddressOnMap = (asDestination) => {
  const handler = ({ results }) => {
    map.fitBounds(bounds.extend(results[0].geometry.location));
    markersArray.push(
      new google.maps.Marker({
        map,
        position: results[0].geometry.location,
        label: asDestination ? "D" : "O",
      }),
    );
  };
  return handler;
};

for (let i = 0; i < originList.length; i++) {
  const results = response.rows[i].elements;

  geocoder
    .geocode({ address: originList[i] })
    .then(showGeocodedAddressOnMap(false));

  for (let j = 0; j < results.length; j++) {
    geocoder
      .geocode({ address: destinationList[j] })
      .then(showGeocodedAddressOnMap(true));
  }
}

}); }

function deleteMarkers(markersArray) { for (let i = 0; i < markersArray.length; i++) { markersArray[i].setMap(null); }

markersArray = []; }

window.initMap = initMap;

CSS

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

#container { height: 100%; display: flex; }

#sidebar { flex-basis: 15rem; flex-grow: 1; padding: 1rem; max-width: 30rem; height: 100%; box-sizing: border-box; overflow: auto; }

#map { flex-basis: 0; flex-grow: 4; height: 100%; }

#sidebar { flex-direction: column; }

HTML

Distance Matrix Service

<link rel="stylesheet" type="text/css" href="./style.css" />
<script type="module" src="./index.js"></script>

Request

Response

<!-- 
  The `defer` attribute causes the script to execute after the full HTML
  document has been parsed. For non-blocking uses, avoiding race conditions,
  and consistent behavior across browsers, consider loading using Promises. See
  https://developers.google.com/maps/documentation/javascript/load-maps-js-api
  for more information.
  -->
<script
  src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly"
  defer
></script>

Try Sample

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.

git clone -b sample-distance-matrix https://github.com/googlemaps/js-samples.git cd js-samples npm i npm start

Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME.

git checkout sample-SAMPLE_NAME npm i npm start