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| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Trajet avec markers</title>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
google.maps.LatLng.prototype.distanceFrom = function(newLatLng) {
var EarthRadiusMeters = 6378137.0; // meters
var lat1 = this.lat();
var lon1 = this.lng();
var lat2 = newLatLng.lat();
var lon2 = newLatLng.lng();
var dLat = (lat2 - lat1) * Math.PI / 180;
var dLon = (lon2 - lon1) * Math.PI / 180;
var a = Math.sin(dLat / 2) * Math.sin(dLat / 2) +
Math.cos(lat1 * Math.PI / 180) * Math.cos(lat2 * Math.PI / 180) *
Math.sin(dLon / 2) * Math.sin(dLon / 2);
var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1 - a));
var d = EarthRadiusMeters * c;
return d;
}
</script>
<script type="text/javascript">
var mArray = new Array();
var points = new Array();
var coordinates = new Array();
var markers = new Array();
var map;
var bounds;
var infowindow = new google.maps.InfoWindow({size: new google.maps.Size(150, 50)});
var resultRequest;
var directionDisplay = new google.maps.DirectionsRenderer();
function estVide(nom) {
if (nom !== undefined && nom !== null && nom !== '' && nom !== false) {
return false;
}
return true;
}
function load() {
var myOptions = {
zoom: 7,
center: new google.maps.LatLng(48, 1),
mapTypeControl: true,
mapTypeControlOptions: {style: google.maps.MapTypeControlStyle.DROPDOWN_MENU},
navigationControl: true,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"),
myOptions);
google.maps.event.addListener(map, 'click', function() {
infowindow.close();
});
calculItineraire();
}
function calculItineraire() {
var rendererOptions = {
draggable: false,
suppressInfoWindows: false,
suppressMarkers: true,
suppressPolylines: false,
};
directionDisplay.setMap(null);
directionDisplay = new google.maps.DirectionsRenderer(rendererOptions);
var request = {
origin: document.getElementById('start').value,
destination: document.getElementById('end').value,
unitSystem: google.maps.DirectionsUnitSystem.METRIC,
travelMode: google.maps.DirectionsTravelMode.DRIVING,
};
var directionsService = new google.maps.DirectionsService();
directionsService.route(request, function(result, status) {
if (status === google.maps.DirectionsStatus.OK) {
resultRequest = result.routes[0];
directionDisplay.setDirections(result);
directionDisplay.setMap(map);
putMarkersDistance();
}
});
}
function getPointAtDistance(metres) {
var myroute = resultRequest;
var arr = new google.maps.MVCArray(myroute.overview_path);
if (metres == 0)
return arr.getAt(0);
if (metres < 0)
return null;
if (arr.getLength() < 2)
return null;
var dist = 0;
var olddist = 0;
for (var i = 1; (i < arr.getLength() && dist < metres); i++) {
olddist = dist;
dist += arr.getAt(i).distanceFrom(arr.getAt(i - 1));
}
if (dist < metres) {
return null;
}
var p1 = arr.getAt(i - 2);
var p2 = arr.getAt(i - 1);
var m = (metres - olddist) / (dist - olddist);
return new google.maps.LatLng(p1.lat() + (p2.lat() - p1.lat()) * m, p1.lng() + (p2.lng() - p1.lng()) * m);
}
function createMarker(point, html) {
var contentString = html;
var marker = new google.maps.Marker({
position: point,
map: map,
title: name,
zIndex: Math.round(point.lat() * -100000) << 5
});
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map, marker);
});
return marker;
}
function putMarkerDistance(distance) {
var km_point = getPointAtDistance(distance);
if (km_point) {
var infoWindowContent = "Kilomètre " + distance / 1000 + " sur " + (resultRequest.legs[0].distance.value / 1000).toFixed(2);
var marker = createMarker(km_point, infoWindowContent);
markers.push(marker);
}
}
function putMarkersDistance() {
deleteMarkers();
var increment = parseInt(document.getElementById('distanceMarker').value * 1000);
var distance = resultRequest.legs[0].distance.value;
for (var i = 0; i < distance; i += increment) {
putMarkerDistance(i);
}
}
function deleteMarkers() {
for (var i = 0; i < markers.length; i++) {
markers[i].setMap(null);
}
markers = new Array();
}
</script>
</head>
<body onload="load()" >
<div id="map_canvas" style="width: 1000px; height: 500px; margin-bottom: 40px;"></div>
<form action="get" method="post">
<label>Départ</label><input type="text" name="start" id="start" value="Paris" />
<label>Arrivée</label><input type="text" name="end" id="end" value="Nantes" />
<label>Marker tous les : </label><input type="text" name="distanceMarker" id="distanceMarker" value="25" size="4"/> kms
<input type="button" name="Reset" value="Envoyer" onclick="calculItineraire()" />
<input type="button" name="Reset" value="Effacer" onclick="deleteMarkers()" />
</form>
</body>
</html> |
