At the moment, I am successfully retrieving all the latitude and longitude coordinates from the source to destination location.
However, I am only able to obtain 1 path using this method.
Now, I would like to have the ability to choose a specific route path among different paths available between the source and destination locationsFurthermore, I intend to store all these latitude and longitude coordinates in my database.
Database structure :
Rid Lat Lon
I am utilizing ASP.NET C# technology.
How can I provide an option to select a path and then retrieve all the corresponding latitude and longitude coordinates along that path.
Additionally, I need to save all the latitude and longitude data into my database using C# code.
How can I accomplish this task?
The following is the code snippet I am currently using:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Geocoding service</title>
<style>
html, body, #map-canvas {
height: 100%;
min-height: 600px;
min-width: 700px;
margin: 0px;
padding: 0px;
}
#map-canvas {
height: 50%;
}
#panel {
position: absolute;
top: 5px;
left: 50%;
margin-left: -180px;
z-index: 5;
background-color: #fff;
padding: 5px;
border: 1px solid #999;
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
</head>
<body>
<div id="panel">
<label>
Origin
<input id="origin" type="text" value="">
</label>
<label>
Destination
<input id="destination" type="text" value="">
</label>
<input type="button" value="GetDirections" onclick="calcRoute()">
</div>
<div id="map-canvas"></div>
<div id="vertex-container">
<label>Points</label>
<ul id="vertex">
</ul>
</div>
<script type="text/javascript">
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
function initialize() {
directionsDisplay = new google.maps.DirectionsRenderer();
var mapOptions = {
zoom: 7,
center: new google.maps.LatLng(25.5911, 86.1611)
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
directionsDisplay.setMap(map);
}
function calcRoute() {
var start = document.getElementById('origin').value;
var end = document.getElementById('destination').value;
var request = {
origin: start,
destination: end,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
if (response.routes && response.routes.length > 0) {
var routes = response.routes;
for (var j = 0; j < routes.length; j++) {
var points = routes[j].overview_path;
var ul = document.getElementById("vertex");
for (var i = 0; i < points.length; i++) {
var li = document.createElement('li');
li.innerHTML = getLiText(points[i]);
ul.appendChild(li);
}
}
}
}
});
}
function getLiText(point) {
var lat = point.lat(),
lng = point.lng();
return "lat: " + lat + " lng: " + lng;
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</body>
</html>