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Remove Polyline Google Maps

In this example you will learn how to remove a polyline from 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

function removePolyLine() {  
    draw_polyline.setMap(null);  
 }

Remove Polyline 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>Remove a Polyline</title>  
    <style>  
      html, body {  
        height: 100%;  
        margin: 0;  
        padding: 0;  
      }  
      #map {  
        height: 99%;
        width: 99%;
      }  
#panel {  
  position: absolute;  
  top: 0px;  
  left: 25%;  
  z-index: 5;  
  background-color: #fff;  
  padding: 0px;  
  border: 1px solid #999;  
  text-align: center;  
}  

 
#panel, .panel {  
  font-family: 'Roboto','sans-serif';  
  line-height: 0px;  
  padding-left: 0px;  
}  
 
#panel select, #panel input, .panel select, .panel input {  
  font-size: 15px;  
}  
 
#panel select, .panel select {  
  width: 100%;  
}  
 
#panel i, .panel i {  
  font-size: 12px;  
}  
  
</style>  
 <script async defer  
        src="https://maps.googleapis.com/maps/api/js?signed_in=true&callback=initMap"></script>  
<script>  
 
var draw_polyline;  
var map;  
  
function initMap() {  
  var lat_lng = {lat: 22.08672, lng: 79.42444};   
  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}];  
    
 draw_polyline = new google.maps.Polyline({    
    path: triangle_coordinates,    
    geodesic: false,    
    strokeColor: '#FF0000',    
    strokeOpacity: 2.0,    
    strokeWeight: 3    
  });    
    
  draw_polyline.setMap(map);
}  
 function removePolyLine() {  
    draw_polyline.setMap(null);  
 } 
</script>  
  </head>  
  <body>  
    <div id="panel">  
      <input onclick="removePolyLine();" type=button value="Remove Polyline">   
    </div>  
    <div id="map"></div>  
  </body>  
</html>

Above example will produce following output