Google Maps Api - drawing routes from an array of points - google-maps

Question

I would like to connect 8 points on google map so that they shared line (road). I would like to click on the point cloud showed up with a description that point. The goal is to show the route the car point to point.
I have script to make map with points but I don't know how connect markers.
var MapPoints = '[{"address":{"address":"plac Grzybowski, Warszawa, Polska","lat":"52.2360592","lng":"21.002903599999968"},"title":"Warszawa"},{"address":{"address":"Jana Paw\u0142a II, Warszawa, Polska","lat":"52.2179967","lng":"21.222655600000053"},"title":"Wroc\u0142aw"},{"address":{"address":"Wawelska, Warszawa, Polska","lat":"52.2166692","lng":"20.993677599999955"},"title":"O\u015bwi\u0119cim"}]';
var MY_MAPTYPE_ID = 'custom_style';
function initialize() {
if (jQuery('#map').length > 0) {
var locations = jQuery.parseJSON(MapPoints);
window.map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
scrollwheel: false
});
var infowindow = new google.maps.InfoWindow();
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i].address.lat, locations[i].address.lng),
map: map
});
bounds.extend(marker.position);
google.maps.event.addListener(marker, 'click', (function (marker, i) {
return function () {
infowindow.setContent(locations[i]['title']);
infowindow.open(map, marker);
}
})(marker, i));
}
map.fitBounds(bounds);
var flightPlanCoordinates = [
new google.maps.LatLng(37.772323, -122.214897),
new google.maps.LatLng(21.291982, -157.821856),
new google.maps.LatLng(-18.142599, 178.431),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightPath = new google.maps.Polyline({
path: flightPlanCoordinates,
strokeColor: "#FF0000",
strokeOpacity: 1.0,
strokeWeight: 2
});
var flightPath = responseArray.map(function (item) {
return new google.maps.LatLng(item.latitude, item.longitude);
});
var listener = google.maps.event.addListener(map, "idle", function () {
map.setZoom(12);
google.maps.event.removeListener(listener);
});
}
}
google.maps.event.addDomListener(window, 'load', initialize);

Answer 1

to connect your markers with a google.maps.Polyline (as it looks like you are trying to do).
create an empty array: var flightPlanCoordinates = [];
push the coordinates of the markers (google.maps.LatLng objects) into the array of coordinates you use for the polyline: flightPlanCoordinates.push(marker.getPosition());
set the map option of the polyline: map:map (in the PolylineOptions object).
var flightPath = new google.maps.Polyline({
map: map,
path: flightPlanCoordinates,
strokeColor: "#FF0000",
strokeOpacity: 1.0,
strokeWeight: 2
});
working fiddle
working code snippet:
var MapPoints = '[{"address":{"address":"plac Grzybowski, Warszawa, Polska","lat":"52.2360592","lng":"21.002903599999968"},"title":"Warszawa"},{"address":{"address":"Jana Paw\u0142a II, Warszawa, Polska","lat":"52.2179967","lng":"21.222655600000053"},"title":"Wroc\u0142aw"},{"address":{"address":"Wawelska, Warszawa, Polska","lat":"52.2166692","lng":"20.993677599999955"},"title":"O\u015bwi\u0119cim"}]';
var MY_MAPTYPE_ID = 'custom_style';
function initialize() {
if (jQuery('#map').length > 0) {
var locations = jQuery.parseJSON(MapPoints);
window.map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
scrollwheel: false
});
var infowindow = new google.maps.InfoWindow();
var flightPlanCoordinates = [];
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i].address.lat, locations[i].address.lng),
map: map
});
flightPlanCoordinates.push(marker.getPosition());
bounds.extend(marker.position);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i]['title']);
infowindow.open(map, marker);
}
})(marker, i));
}
map.fitBounds(bounds);
var flightPath = new google.maps.Polyline({
map: map,
path: flightPlanCoordinates,
strokeColor: "#FF0000",
strokeOpacity: 1.0,
strokeWeight: 2
});
}
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body,
#map {
height: 500px;
width: 500px;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<div id="map" style="border: 2px solid #3872ac;"></div>
to connect the points using the directions service (from the example you reference)
create an empty array: var flightPlanCoordinates = [];
push the coordinates of the markers (google.maps.LatLng objects) into the array of coordinates you use for the polyline: flightPlanCoordinates.push(marker.getPosition());
use that array to populate the start, end, and waypts arguments into the calcRoute function:
var start = flightPlanCoordinates[0];
var end = flightPlanCoordinates[flightPlanCoordinates.length - 1];
var waypts = [];
for (var i = 1; i < flightPlanCoordinates.length - 1; i++) {
waypts.push({
location: flightPlanCoordinates[i],
stopover: true
});
}
calcRoute(start, end, waypts);
change the calcRoute function to use those arguments:
function calcRoute(start, end, waypts) {
var request = {
origin: start,
destination: end,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING
};
working fiddle
working code snippet:
var MapPoints = '[{"address":{"address":"plac Grzybowski, Warszawa, Polska","lat":"52.2360592","lng":"21.002903599999968"},"title":"Warszawa"},{"address":{"address":"Jana Paw\u0142a II, Warszawa, Polska","lat":"52.2179967","lng":"21.222655600000053"},"title":"Wroc\u0142aw"},{"address":{"address":"Wawelska, Warszawa, Polska","lat":"52.2166692","lng":"20.993677599999955"},"title":"O\u015bwi\u0119cim"}]';
var MY_MAPTYPE_ID = 'custom_style';
var directionsDisplay;
var directionsService = new google.maps.DirectionsService();
var map;
function initialize() {
directionsDisplay = new google.maps.DirectionsRenderer({
suppressMarkers: true
});
if (jQuery('#map').length > 0) {
var locations = jQuery.parseJSON(MapPoints);
map = new google.maps.Map(document.getElementById('map'), {
mapTypeId: google.maps.MapTypeId.ROADMAP,
scrollwheel: false
});
directionsDisplay.setMap(map);
var infowindow = new google.maps.InfoWindow();
var flightPlanCoordinates = [];
var bounds = new google.maps.LatLngBounds();
for (i = 0; i < locations.length; i++) {
marker = new google.maps.Marker({
position: new google.maps.LatLng(locations[i].address.lat, locations[i].address.lng),
map: map
});
flightPlanCoordinates.push(marker.getPosition());
bounds.extend(marker.position);
google.maps.event.addListener(marker, 'click', (function(marker, i) {
return function() {
infowindow.setContent(locations[i]['title']);
infowindow.open(map, marker);
}
})(marker, i));
}
map.fitBounds(bounds);
// directions service configuration
var start = flightPlanCoordinates[0];
var end = flightPlanCoordinates[flightPlanCoordinates.length - 1];
var waypts = [];
for (var i = 1; i < flightPlanCoordinates.length - 1; i++) {
waypts.push({
location: flightPlanCoordinates[i],
stopover: true
});
}
calcRoute(start, end, waypts);
}
}
function calcRoute(start, end, waypts) {
var request = {
origin: start,
destination: end,
waypoints: waypts,
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function(response, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
var route = response.routes[0];
var summaryPanel = document.getElementById('directions_panel');
summaryPanel.innerHTML = '';
// For each route, display summary information.
for (var i = 0; i < route.legs.length; i++) {
var routeSegment = i + 1;
summaryPanel.innerHTML += '<b>Route Segment: ' + routeSegment + '</b><br>';
summaryPanel.innerHTML += route.legs[i].start_address + ' to ';
summaryPanel.innerHTML += route.legs[i].end_address + '<br>';
summaryPanel.innerHTML += route.legs[i].distance.text + '<br><br>';
}
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
html,
body,
#map {
height: 500px;
width: 500px;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<div id="map" style="border: 2px solid #3872ac;"></div>
<div id="directions_panel"></div>