Doubt using RouteSummary() method

**Clog** · 2012-08-27, 17:58

Hi,

i'm developing a webapp and i'm having some troble with the use of the method RouteSummary() and to clear a route already routed. My code is:

<script type="text/javascript">
var way;
function val(what) {
way = what.value;
load();
}

var locat = null;
var end = null;
var container = null;
var map;
var MyinfoBubbles;
var router;
var waypoints;
var resum;

//if(getUrlVars()['maps']=='nokia'||getUrlVars()['maps']=='false') {
nokia.Settings.set( "appId", "MYKEY");
nokia.Settings.set( "authenticationToken", "MYKEY");
$(document).ready(function () {

map = new nokia.maps.map.Display(document.getElementById("mapContainer"), {
'center': [-22.9069, -47.0613],
'zoomLevel': 17,
components: [ new nokia.maps.map.component.Behavior() ]
});
load();
});

function load() {
var timeoutVal = 10 ;
navigator.geolocation.getCurrentPosition(success, error,
{ enableHighAccuracy: false, timeout: timeoutVal, maximumAge: 0 });
}
function error(msg) {
switch(msg.code)
{
case msg.PERMISSION_DENIED:
//alert("User denied the request for Geolocation.");
alert("Para utilizar o CLOG é necessário aceitar o compartilhamento de sua localização.");

break;
case msg.POSITION_UNAVAILABLE:
alert("O nao conseguiu obter sua localização.");

break;
case msg.TIMEOUT:
//alert("The request to get user location timed out.");
alert("O tempo maximo de busca de sua localização foi excedido.");

break;
case msg.UNKNOWN_ERROR:
alert("An unknown error occurred.");

break;
}

}
function success(position) {
var lat = position.coords.latitude;
var lon = position.coords.longitude;
locat = new nokia.maps.geo.Coordinate(lat, lon);
nokia.places.search.manager.reverseGeoCode({
latitude: lat,
longitude: lon
});

var waypoints = new nokia.maps.routing.WaypointParameterList();
waypoints.addCoordinate(locat);
waypoints.addCoordinate(new nokia.maps.geo.Coordinate(-29.915393,-49.051036));

var modes = [{
type: "shortest",
transportModes: [way],
options: "",
trafficMode: "default"
}];

router = new nokia.maps.routing.Manager();
var onRouteCalculated = function (observedRouter, key, value) {
if (value == "finished") {
//map.set(null);
var routes = observedRouter.getRoutes();
mapRoute = new nokia.maps.routing.component.RouteResultSet(routes[0]).container;
map.objects.add(mapRoute);
map.zoomTo(mapRoute.getBoundingBox(), false, "default");
} else if (value == "failed") {
alert("The routing request failed.");
}
};
router.addObserver("state", onRouteCalculated);
router.calculateRoute(waypoints, modes.slice(0));
//router.calculateRoute(waypoints, modes);

}
//}

</script>
<style type="text/css">
#mapContainer {

position:absolute;
top:35px;
left:0;
display:block;
height: 94%;
width: 100%;

}

#up{
width: 106%;
height: 40px;
margin-left:-10px;
margin-top: -10px;
text-align: center;
letter-spacing: 30%;
white-space: nowrap;
overflow: hidden;
background-color:#000;
color:#FFF;

}

a:visited {color: #ffffff;}
a:link {color: #ffffff;}
a:bover {color: #000000;}
a:active {color: #000000;}
</style>

</head>
<body>
<div id="up">

<input class="button" type="button" value="pedestrian" onClick="val(this)">
<input class="button" type="button" value="publicTransport" onClick="val(this)">
<input class="button" type="button" value="car" onClick="val(this)">

<div id="mapContainer"></div>

</div>

So, when the user clicks on the button pedestrian, publicTransport or Car, the app will trace another route with the selected option, but in my case, it traces as many as the user click, so i need to update the new route to not show the older anymore.

In the RouteSummary() method, i want to show the average time to the user reach his destination, but i can do this because i don't know how to use it.

Thanks a lot

**symbianyucca** · 2012-08-28, 10:56

Not certain if I understood correctly, but if you want to show only one route, then you could indeed add code which would remove any old routes before you start adding new ones..

**Clog** · 2012-08-28, 20:35

Thats it, but in my code the old route remain even if i trace a new route. That's why i've sended my code, so anyone can show what am I doing wrong.

Thanks a lot for the reply

**symbianyucca** · 2012-08-29, 07:05

Basically things don't happen magically. Can you point our in where you are removing old content ? I can see you only adding new one with map.objects.add, but never removing anything really.

**Clog** · 2012-08-29, 17:53

i actually add the line "map.objects.remove(mapRoute);" just before the map.objects.add and does not work at all. I've tried the "map.update(-1)" too, but, does not work either. Can you tell my why? Is the currect way to do this ?

**symbianyucca** · 2012-08-29, 19:19

map.objects.remove(mapRoute) you would actually use as the mapRoute, the original mapRoute one, not teh one you just constructed, thus of course that does not work. Either try checking whether there is function to clear all objects, or simply loop the objects array and remove them one-by-one (start from last to first, as usual)

**Clog** · 2012-08-30, 00:49

Thanks. Can you clear to me how to do that ?

**symbianyucca** · 2012-08-30, 07:16

You could always check the API reference, anyway, you could also search for older discussions, anyway I suppose you could try something like:

for (i=0; i< map.objects.getLength(); i++) {
map.objects.remove(map.objects.get(i));
}

**Clog** · 2012-08-30, 14:03

Yes. You're the man. Works perfectlly.

Well, after your reply i've checked the API reference to use the method RouteSummary() because i want to show the average travel time to user. But when i try to create an object (var xxx = new nokia.maps.routing.RouteSummary () ) it returns an error. I want to show to the user the value of "baseTime".

If is not ask too much, can you help me with this one?

Thanks a lot

**S40Pramod** · 2012-08-30, 14:14

Thanks a lot

**jasfox** · 2012-08-30, 16:38

Originally Posted by Clog

Well, after your reply i've checked the API reference to use the method RouteSummary() because i want to show the average travel time to user. But when i try to create an object (var xxx = new nokia.maps.routing.RouteSummary () ) it returns an error. I want to show to the user the value of "baseTime".

I think you may be after the route.duration rather than RouteSummary() - the travel time can be found in the example here: http://www.developer.nokia.com/Commu...vanced_Routing

Also since map.objects is an OList it would usually be quicker to call map.objects.clear() than iterating through and removing each item.

**symbianyucca** · 2012-08-30, 18:42

Originally Posted by jasfox

... map.objects.clear() than iterating through and removing each item.

Thanks, was looking for that one, but somehow did not find it, so went for the way that knew that is working at least. Anyway, clear() is better in this case..

**Clog** · 2012-08-31, 18:30

Thanks a lot guys. It's working perfectlly now. One more doubt: When i trace the route, it shows a marker named "A" that is the origin and a marker named "B" that is the destiny. So, is there any way that i can replace this default marker to a custom one (like, my store image)?

Thanks again.

**jasfox** · 2012-09-03, 16:39

Yes you can. You will need to write your own version of RouteResultSet to do this instead of using the default:

This question has already been answered here: http://www.developer.nokia.com/Commu...ween-waypoints, and there is sample Code in the thread.

In your case you will need to update the line below to highlight each Waypoint with Markers, rather than StandardMarkers:

Code:

legContainer.objects.add(new nokia.maps.map.StandardMarker(
						firstroute.waypoints[i].mappedPosition, 
						{ text: i  + 1 }
					));

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