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Polyline in Google Maps

In this example you will learn how to add simple polylines in google map.

Here you can view the output of the example and you can also "try it yourself" by clicking on "Live Demo" button given at the bottom.

Syntax

var draw_polyline = new google.maps.Polyline({  
    path: triangle_coordinates,  
    geodesic: false,  
    strokeColor: '#FF0000',  
    strokeOpacity: 2.0,  
    strokeWeight: 3  
  }); 

Polyline in Google Maps Example

<!DOCTYPE html>  
<html>  
  <head>  <!-- www.techstrikers.com -->
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">  
    <meta charset="utf-8">  
    <title>Simple Polylines</title>  
    <style>  
      html, body {  
        height: 100%;  
        margin: 0;  
        padding: 0;  
      }  
      #map {  
        height: 99%;  
        width: 99%;
      }  
    </style>  
        <script async defer  
        src="https://maps.googleapis.com/maps/api/js?signed_in=true&callback=initMap"></script>  
<script>  

  
function initMap() {
  var lat_lng = {lat: 22.08672, lng: 79.42444}; 
  var map = new google.maps.Map(document.getElementById('map'), {  
    zoom: 6,  
    center: lat_lng,  
    mapTypeId: google.maps.MapTypeId.TERRAIN  
  });  
  
 
   var triangle_coordinates=     
[{lat:23.67502, lng:76.2533},     
{lat:23.58179, lng:82.6034},    
{lat:25.0757, lng:79.1537},
{lat:23.67502, lng:76.2537}];
  
  var draw_polyline = new google.maps.Polyline({  
    path: triangle_coordinates,  
    geodesic: false,  
    strokeColor: '#FF0000',  
    strokeOpacity: 2.0,  
    strokeWeight: 3  
  });  
  
  draw_polyline.setMap(map);  
}  
    </script>   
  </head>  
  <body>  
    <div id="map"></div>  
  </body>  
</html> 

Above example will produce following output