Created
February 13, 2015 16:08
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Geolocation and routing demo
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<!DOCTYPE html> | |
<html> | |
<head> | |
<meta name="viewport" content="initial-scale=1.0, user-scalable=no"> | |
<meta charset="utf-8"> | |
<title>Sewanee Directions Service</title> | |
<style> | |
html, body, #map-canvas { | |
height: 100%; | |
margin: 0px; | |
padding: 0px | |
} | |
#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&signed_in=true"></script> | |
<script> | |
var directionsDisplay; | |
var directionsService = new google.maps.DirectionsService(); | |
var infowindow = new google.maps.InfoWindow(); | |
var geocoder = new google.maps.Geocoder(); | |
var map; | |
var currentLocation = "27 Canterbury Way, Sewanee, TN, 37375"; | |
function initialize() { | |
navigator.geolocation.getCurrentPosition(function(pos) { | |
var lat = pos.coords.latitude; | |
var lng = pos.coords.longitude; | |
directionsDisplay = new google.maps.DirectionsRenderer(); | |
var latlng = new google.maps.LatLng(lat, lng); | |
var mapOptions = { | |
zoom:15, | |
center: latlng | |
}; | |
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions); | |
geocoder.geocode({'latLng': latlng}, function(results, status) { | |
if (status == google.maps.GeocoderStatus.OK) { | |
if (results[0]) { | |
map.setZoom(15); | |
marker = new google.maps.Marker({ | |
position: latlng, | |
map: map | |
}); | |
currentLocation = results[0].formatted_address; | |
infowindow.setContent(results[0].formatted_address); | |
infowindow.open(map, marker); | |
} else { | |
alert('No results found'); | |
} | |
} else { | |
alert('Geocoder failed due to: ' + status); | |
} | |
}); | |
directionsDisplay.setMap(map); | |
}); | |
} | |
function calcRoute() { | |
var end = document.getElementById('end').value; | |
var request = { | |
origin: currentLocation, | |
destination: end, | |
travelMode: google.maps.TravelMode.WALKING | |
}; | |
directionsService.route(request, function(response, status) { | |
if (status == google.maps.DirectionsStatus.OK) { | |
directionsDisplay.setDirections(response); | |
} | |
}); | |
} | |
google.maps.event.addDomListener(window, 'load', initialize); | |
</script> | |
</head> | |
<body> | |
<div id="panel"> | |
<b>Directions to</b> | |
<select id="end" onchange="calcRoute();"> | |
<option value="27 Canterbury Way, Sewanee, TN, 37375">27 Canterbury</option> | |
<option value="92 Dubose Ln, Sewanee, TN 37375">Gailor Hall</option> | |
<option value="1260 University Avenue, Sewanee, TN 37375">Hospital</option> | |
</select> | |
</div> | |
<div id="map-canvas"></div> | |
</body> | |
</html> |
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