Here is the simplest way of doing it, we explain it step by step.
CSS
<style>
#right-panel {
font-family: 'Roboto','sans-serif';
line-height: 30px;
padding-left: 10px;
}
#right-panel select, #right-panel input {
font-size: 15px;
}
#right-panel select {
width: 100%;
}
#right-panel i {
font-size: 12px;
}
html, body {
height: 100%;
margin: 0;
padding: 0;
}
#map {
height: 100%;
float: left;
width: 70%;
height: 100%;
}
#right-panel {
margin: 20px;
border-width: 2px;
width: 20%;
height: 400px;
float: left;
text-align: left;
padding-top: 0;
}
#directions-panel {
margin-top: 10px;
background-color: #23b0ff;
padding: 10px;
overflow: scroll;
height: 174px;
}
</style>
Script
<script>
function initMap() {
var directionsService = new google.maps.DirectionsService;
var directionsDisplay = new google.maps.DirectionsRenderer;
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 6,
center: {lat: 41.85, lng: -87.65}
});
directionsDisplay.setMap(map);
document.getElementById('submit').addEventListener('click', function() {
calculateAndDisplayRoute(directionsService, directionsDisplay);
});
}
function calculateAndDisplayRoute(directionsService, directionsDisplay) {
var waypts = [];
var checkboxArray = document.getElementById('waypoints');
for (var i = 0; i < checkboxArray.length; i++) {
if (checkboxArray.options[i].selected) {
waypts.push({
location: checkboxArray[i].value,
stopover: true
});
}
}
directionsService.route({
origin: document.getElementById('start').value,
destination: document.getElementById('end').value,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: 'DRIVING'
}, function(response, status) {
if (status === 'OK') {
directionsDisplay.setDirections(response);
var route = response.routes[0];
var summaryPanel = document.getElementById('directions-panel');
summaryPanel.innerHTML = '';
// For each route, display summary information.
for (var i = 0; i < route.legs.length; i++) {
var routeSegment = i + 1;
summaryPanel.innerHTML += '<b>Route Segment: ' + routeSegment +
'</b><br>';
summaryPanel.innerHTML += route.legs[i].start_address + ' to ';
summaryPanel.innerHTML += route.legs[i].end_address + '<br>';
summaryPanel.innerHTML += route.legs[i].distance.text + '<br><br>';
}
} else {
window.alert('Directions request failed due to ' + status);
}
});
}
</script>
API
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
</script>
Here is the procedure to create new API key
Body
<div id="map"></div>
<a href ='http://www.phpjavascript.com/2018/02/how-to-add-google-map-to-website-using.html'>MAP</a>
<div id="right-panel">
<div>
<b>Start:</b>
<select id="start">
<option value="Hyderabad">Hyderabad</option>
<option value="Banglore">Banglore</option>
<option value="Delhi">Delhi</option>
<option value="Pune">Pune</option>
</select>
<br>
<b>Waypoints:</b> <br>
<i>(Ctrl+Click or Cmd+Click for multiple selection)</i> <br>
<select multiple id="waypoints">
<option value="Delhi">Delhi</option>
<option value="Banglore">Banglore</option>
<option value="Chenai">Chenai</option>
<option value="Hyderabad">Hyderabad</option>
<option value="Tripura">Tripura</option>
<option value="Varanasi">Varanasi</option>
</select>
<br>
<b>End:</b>
<select id="end">
<option value="Chenai">Chenai</option>
<option value="Kolkata">Kolkata</option>
<option value="Mumbai">Mumbai</option>
<option value="Rajasthan">Rajasthan</option>
</select>
<br>
<input type="submit" id="submit">
</div>
<div id="directions-panel"></div>
</div>
Result
