Simple Polylines

This example creates a two-pixel-wide red polyline that shows the path of the first trans-Pacific flight between Oakland, CA, and Brisbane, Australia.

Read the documentation.

TypeScript

// This example creates a 2-pixel-wide red polyline showing the path of // the first trans-Pacific flight between Oakland, CA, and Brisbane, // Australia which was made by Charles Kingsford Smith.  function initMap(): void {   const map = new google.maps.Map(     document.getElementById("map") as HTMLElement,     {       zoom: 3,       center: { lat: 0, lng: -180 },       mapTypeId: "terrain",     }   );    const flightPlanCoordinates = [     { lat: 37.772, lng: -122.214 },     { lat: 21.291, lng: -157.821 },     { lat: -18.142, lng: 178.431 },     { lat: -27.467, lng: 153.027 },   ];   const flightPath = new google.maps.Polyline({     path: flightPlanCoordinates,     geodesic: true,     strokeColor: "#FF0000",     strokeOpacity: 1.0,     strokeWeight: 2,   });    flightPath.setMap(map); }

JavaScript

// This example creates a 2-pixel-wide red polyline showing the path of // the first trans-Pacific flight between Oakland, CA, and Brisbane, // Australia which was made by Charles Kingsford Smith. function initMap() {   const map = new google.maps.Map(document.getElementById("map"), {     zoom: 3,     center: { lat: 0, lng: -180 },     mapTypeId: "terrain",   });   const flightPlanCoordinates = [     { lat: 37.772, lng: -122.214 },     { lat: 21.291, lng: -157.821 },     { lat: -18.142, lng: 178.431 },     { lat: -27.467, lng: 153.027 },   ];   const flightPath = new google.maps.Polyline({     path: flightPlanCoordinates,     geodesic: true,     strokeColor: "#FF0000",     strokeOpacity: 1.0,     strokeWeight: 2,   });    flightPath.setMap(map); }

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; }

HTML

<!DOCTYPE html> <html>   <head>     <title>Simple Polylines</title>     <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>     <link rel="stylesheet" type="text/css" href="./style.css" />     <script src="./index.js"></script>   </head>   <body>     <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&v=weekly"       async     ></script>   </body> </html>

// This example creates a 2-pixel-wide red polyline showing the path of // the first trans-Pacific flight between Oakland, CA, and Brisbane, // Australia which was made by Charles Kingsford Smith. function initMap() { const map = new google.maps.Map(document.getElementById("map"), { zoom: 3, center: { lat: 0, lng: -180 }, mapTypeId: "terrain", }); const flightPlanCoordinates = [ { lat: 37.772, lng: -122.214 }, { lat: 21.291, lng: -157.821 }, { lat: -18.142, lng: 178.431 }, { lat: -27.467, lng: 153.027 }, ]; const flightPath = new google.maps.Polyline({ path: flightPlanCoordinates, geodesic: true, strokeColor: "#FF0000", strokeOpacity: 1.0, strokeWeight: 2, }); flightPath.setMap(map); }

/* 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>Simple Polylines</title> <script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script> <!-- jsFiddle will insert css and js --> </head> <body> <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=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly&channel=2" async ></script> </body> </html>

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-polyline-simple 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

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Last updated 2021-11-23 UTC.