More than 2 Origin and destination on Google Maps API 3 - google-maps

I had this example :
https://google-developers.appspot.com/maps/documentation/javascript/examples/directions-panel
and I was wondering how to set routes by 2 or more waypoint? As you know on that application you can get the waypoint: first, set the origin / start point and then set the destination point and the maps will generating the routes. Script :
function calcRoute() {
var start = document.getElementById('start').value;
var end = document.getElementById('end').value;
var request = {
origin: start,
destination: end,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
}
see : origin : start, destination: end.
Now the Question is : Is that possible to me to set the waypoint by myself? Using LatLong from point-to-point or maybe I just say what the street name that will be the point?
Understand? Sorry I am not good at words but I always wait for the answers, thank you!

Yes it is possible to add waypoints to a directions request:
Here is the description of the waypoint object from the documentation:
https://developers.google.com/maps/documentation/javascript/reference#DirectionsWaypoint
Here is the request description in the documentation (see waypoints):
https://developers.google.com/maps/documentation/javascript/reference#DirectionsRequest
Example with an "address" waypoint
Example with a waypoint specified by coordinates

Related

Multiple directions on the same Google Map on click

I would like to reproduce a multi direction route sistem on the same Google Map like this website: http://hotelberna.com/en/where-we-are/
The same start point and multiple destinations. When I click on each final destination, then the map show me the new route.
Thanks in advance
I think you must be talking about something like this, right?
http://jsfiddle.net/dm1o1ktf/
(a modified version of the sample code in the documentation)
What you need is to trigger some function like calcRoute when you select a new location; in which you calculate the new route using the directionsService, like this:
function calcRoute() {
var start = "Mountain View, CA";
var end = document.getElementById('end').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);
}
});
}

Plotting more than 8 waypoints in Google Maps v3

Migrating code from Javascript API 2 to 3. I have a list of locations which i need to plot in the form of a driving directions. This was done in v2 using the following code
directions = new GDirections(map);
directions.loadFromWaypoints(waypoints, {preserveViewport: true});
Here is my attempt at converting this to V3
var request = {
origin: startLoc,
destination: endLoc,
waypoints: waypoints,
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
Not the whole code, but the general idea. Seems to work fine, with one little issue. When there are more than 8 waypoints, the call fails. This is expected since Google Maps API v3 Docs states
The maximum allowed waypoints is 8, plus the origin, and destination. Maps API for Business customers are allowed 23 waypoints, plus the origin, and destination. Waypoints are not supported for transit directions.
Since i didn't run in to this issue in v2, is this a new restriction with v3? I wonder if i am using something that was not designed for what i need. This is a very lightly used applicaton with 2 users, so i am not sure if an expensive business license is worth the return. Emails to Google maps team have not yet been returned. Any workarounds/pointers will be of great help. Thanks.
One possible work around (particularly for a lightly used site) is to use multiple DirectionsService requests.
example 1 (addresses)
example 2 (coordinates)
Use Should need to Use array concept like these...
directionsService[i].route({
'origin': start,
'destination': end
'waypoints': waypts,
'travelMode': 'DRIVING'
},
function (directions, status){
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay[j].setDirections(directions);
}
});
in these directionservice and directiondisplay are should be in array logic
and using looping concepts use should need to assign start,end and waypoints dynamically and
try sending multiple request means u ll get the route for n number of latlon's ...but the markers ll be repeat with same name after 8 waypoints for that we remove the default markers by using supressmarkers false property...
As others said, it's imposable to do it using Google's JavaScript API. However, Google does allow up to 23 waypoints with a server-side request. So using PHP and JavaScript, I was able to make a workaround.
What you have to do is get the "waypoint order" from the server side request and then have JavaScript give you directions between each location.
<?php
$startLocation = "40.713,-74.0135";
$endLocation = "40.75773,-73.985708";
$waypoints = array("40.748433,-73.985656|", "40.689167,-74.044444|");
$apiKey = "";
$routeData = json_decode(file_get_contents("https://maps.googleapis.com/maps/api/directions/json?origin=".$startLoc."&destination=".$endLoc."&waypoints=optimize:true|".$waypoints."&key=".$apiKey));
echo "var waypointsOrder = ". json_encode($routeData->routes[0]->waypoint_order) . ";\n";
?>
var startLocation = {lat: 40.713, lng: -74.0135};
var endLocation = {lat: 40.75773, lng: -73.985708};
//get directions from the origin to the first waypoint
var request = {
origin: startLocation,
destination: JSON.parse(places[waypointsOrder[0]][1]),
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (result, status) {
if (status == google.maps.DirectionsStatus.OK) {
renderDirections(result, map);
}
});
//get directions from the last waypoint to the destination
var request = {
origin: JSON.parse(places[waypointsOrder[waypointsOrder.length-1]][1]),
destination: endLocation,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (result, status) {
if (status == google.maps.DirectionsStatus.OK) {
renderDirections(result, map);
}
});
//get directions between each waypoint
for (i = 1; i < waypointsOrder.length; i++) {
var request = {
origin: JSON.parse(places[waypointsOrder[i-1]][1]),
destination: JSON.parse(places[waypointsOrder[i]][1]),
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (result, status) {
if (status == google.maps.DirectionsStatus.OK) {
renderDirections(result, map);
}
});
}
function renderDirections(result, map) {
var directionsDisplay = new google.maps.DirectionsRenderer ({
map: map
});
directionsDisplay.setMap(map);
directionsDisplay.setDirections(result);
}

How to get all suggeted route text from ditrection pannel in google map in java script?

When i enter source and destination it show me all suggested routes in direction panel. Let say it show me Route A, B and C. I want to get Route A road name, time and distance. Like "N5 Road 225 KM-about 3 hours 20 mins". I want to complete string. Please help me in this regard. Thanks
I just get route summary by using following code:
var request = {
origin: start,
destination: end,
provideRouteAlternatives: true,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function (response, status) {
if (status == google.maps.DirectionsStatus.OK) {
response.routes[0].summary;
directionsDisplay.setDirections(response);
}
});

Is it possible to put a marker after some "km" from the start point in a DirectionsService's route?

This is my code :
var request = {
origin: start,
destination: end,
travelMode: google.maps.DirectionsTravelMode.DRIVING
};
directionsService.route(request, function (response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
}
});
now, I'd like to put a marker after 200km from the point origin: start : is it possible?
Here is an example that puts two markers on a route (one at 9.5km and one at 64.8km):
http://www.geocodezip.com/v3_GoogleEx_directions-waypoints_kmmarkersC.html
(so, yes, it is possible)
This example was created before the geometry library was released, and might be able to be re-written to use that.

what Am i doing wrong in performing reverse geocoding

I am trying reverse geocoding, I have three coordinates and I want to convert them to addresses, I have used following method.
var point1 = new google.maps.LatLng(latLng1);
var point2 = new google.maps.LatLng(latLng2);
var point3 = new google.maps.LatLng(latLng3);
where latLng1, latLng2, latLng3 are coordinates.
and then further I want to use these addresses to following code to create a path
var request = {
origin:location1,
destination:location2,
waypoints:[{location: point1}, {location: point2}, {location: point3}],
travelMode: google.maps.DirectionsTravelMode.WALKING
};
but it never displays anything.
Am I doing it right, One more thing it says in google APIv3 that we can either use string of address in waypoint or latlng. how we can use latlag in waypoint.
Are you showing your whole code here?
Please, post your latLng1 value, for example.
Also, show your directionsService call. I do like that:
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
} else alert(status);
});
In any case - try do alert() your request statuses, directions may not be available for these points.
By the way you don't need to reverse geocode your coordinates to addresses to get directions. You can use coordinates in waypoints, which is what you doing here.