• JavaScript
  • HTML
 * Adds a polyline between Dublin, London, Paris and Berlin to the map
 * @param  {H.Map} map      A HERE Map instance within the application
function addPolylineToMap(map) {
  var lineString = new H.geo.LineString();

  lineString.pushPoint({lat:53.3477, lng:-6.2597});
  lineString.pushPoint({lat:51.5008, lng:-0.1224});
  lineString.pushPoint({lat:48.8567, lng:2.3508});
  lineString.pushPoint({lat:52.5166, lng:13.3833});

  map.addObject(new H.map.Polyline(
    lineString, { style: { lineWidth: 4 }}

 * Boilerplate map initialization code starts below:

//Step 1: initialize communication with the platform
// In your own code, replace variable window.apikey with your own apikey
var platform = new H.service.Platform({
  apikey: window.apikey
var defaultLayers = platform.createDefaultLayers();

//Step 2: initialize a map - this map is centered over Europe
var map = new H.Map(document.getElementById('map'),
  center: {lat:52, lng:5},
  zoom: 5,
  pixelRatio: window.devicePixelRatio || 1
// add a resize listener to make sure that the map occupies the whole container
window.addEventListener('resize', () => map.getViewPort().resize());

//Step 3: make the map interactive
// MapEvents enables the event system
// Behavior implements default interactions for pan/zoom (also on mobile touch environments)
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));

// Create the default UI components
var ui = H.ui.UI.createDefault(map, defaultLayers);

// Now use the map as required...
<!DOCTYPE html>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=yes">
    <meta http-equiv="Content-type" content="text/html;charset=UTF-8">
    <title>Polyline on the Map</title>
    <link rel="stylesheet" type="text/css" href="https://js.api.here.com/v3/3.1/mapsjs-ui.css" />
    <link rel="stylesheet" type="text/css" href="demo.css" />
    <link rel="stylesheet" type="text/css" href="styles.css" />
    <link rel="stylesheet" type="text/css" href="../template.css" />
    <script type="text/javascript" src='../test-credentials.js'></script>
    <script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-core.js"></script>
    <script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-service.js"></script>
    <script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-ui.js"></script>
    <script type="text/javascript" src="https://js.api.here.com/v3/3.1/mapsjs-mapevents.js"></script>
  <script type="text/javascript" src='../js-examples-rendering-helpers/iframe-height.js'></script></head>
  <body id="markers-on-the-map">
    <div class="page-header">
        <h1>Polyline on the Map</h1>
        <p>Display a map highlighting a region or area</p>
    <p>This example displays a line connecting the cities of <b>Dublin</b> <i>(53.3477°N, 6.2597°W)</i>, 
      <b>London</b> <i>(51.5008°N, 0.1224°W)</i>, <b>Paris</b> <i>(48.8567°N, 2.3508°E)</i> and 
      <b>Berlin</b> <i>(52.5166°N, 13.3833°E)</i> and displays it on the map.</p>
    <div id="map"></div>
    <p>A polyline is created using the <code>H.map.Polyline</code> class, passing in an 
      <code>H.geo.LineString</code> holding the points of the line. The look-and-feel of the polyline can be altered by adding the style parameter</p>
    <script type="text/javascript" src='demo.js'></script>