Here we will see How to Draw Path using google API in
Asp.Net
<div>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
function
GetRoute() {
var
markers = new Array();
var
myLatLng;
//Find
the current location of the user.
if
(navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function
(p) {
var
myLatLng = new google.maps.LatLng(p.coords.latitude,
p.coords.longitude);
var
m = {};
m.title = "User's location";
m.lat = p.coords.latitude;
m.lng = p.coords.longitude;
markers.push(m);
//Find
specified address location.
var
address = document.getElementById("txtAddress").value;
var
geocoder = new google.maps.Geocoder();
geocoder.geocode({ 'address': address }, function
(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
m = {};
m.title = address;
m.lat = results[0].geometry.location.lat();
m.lng =
results[0].geometry.location.lng();
markers.push(m);
var mapOptions = {
center:
myLatLng,
zoom: 4,
mapTypeId:
google.maps.MapTypeId.ROADMAP
};
var map = new
google.maps.Map(document.getElementById("dvMap"),
mapOptions);
var
infoWindow = new google.maps.InfoWindow();
var lat_lng = new
Array();
var latlngbounds = new
google.maps.LatLngBounds();
for (i = 0; i < markers.length; i++) {
var data = markers[i];
var myLatlng = new
google.maps.LatLng(data.lat, data.lng);
lat_lng.push(myLatlng);
var marker = new
google.maps.Marker({
position:
myLatlng,
map: map,
title:
data.title
});
latlngbounds.extend(marker.position);
(function (marker, data) {
google.maps.event.addListener(marker, "click",
function (e) {
infoWindow.setContent(data.title);
infoWindow.open(map, marker);
});
})(marker,
data);
}
map.setCenter(latlngbounds.getCenter());
map.fitBounds(latlngbounds);
//***********ROUTING****************//
//Initialize the Path Array.
var path = new google.maps.MVCArray();
//Initialize the Direction Service.
var service = new
google.maps.DirectionsService();
//Set the Path Stroke Color.
var poly = new
google.maps.Polyline({ map: map, strokeColor: '#4986E7'
});
//Loop and Draw Path Route between the Points on MAP.
for (var i = 0; i
< lat_lng.length; i++) {
if ((i + 1) < lat_lng.length) {
var src = lat_lng[i];
var des = lat_lng[i + 1];
path.push(src);
poly.setPath(path);
service.route({
origin:
src,
destination: des,
travelMode: google.maps.DirectionsTravelMode.DRIVING
}, function (result, status) {
if (status == google.maps.DirectionsStatus.OK) {
for (var i = 0, len =
result.routes[0].overview_path.length; i < len; i++) {
path.push(result.routes[0].overview_path[i]);
}
} else {
//If the location specified is invalid, show error.
alert("Invalid location for plotting
route.");
window.location.href = window.location.href;
}
});
}
}
} else {
alert("Request failed.")
}
});
});
}
else
{
alert('Geo
Location feature is not supported in this browser.');
return;
}
}
</script>
<input type="text" id="txtAddress" value="Churchgate, Mumbai, India" style="width: 200px" />
<br />
<input type="button" value="Get Route" onclick="GetRoute()" />
<hr />
<div id="dvMap" style="width: 500px; height: 500px">
</div>
</div>
Thanks for comments.....