问题
I want to display optimize route for about 100 addresses on the Google maps. I have searched for that but Google gives only 8 addresses per request in free and 23 addresses in Paid API. Than I saw one website who is doing same thing using unlimited address and named "Route4Me".
The case is now I have all addresses's lati and longi in optimize manner. I just want to show a route using these data on Google maps.
This situation is not exact as to route from A to B in Google Maps. I want to map route more than 50 addresses in route on maps which thing google does not provide. So I want different solution.
can you please provide me a solution ?
回答1:
This code (from one of the examples in Google Maps API to get bus route, will (for me) display 90 points without running into the query limit.
jQuery(function() {
var map = new window.google.maps.Map(document.getElementById("map"));
// new up complex objects before passing them around
var directionsDisplay = new window.google.maps.DirectionsRenderer({
suppressMarkers: true
});
var directionsService = new window.google.maps.DirectionsService();
Tour_startUp(stops);
window.tour.loadMap(map, directionsDisplay);
window.tour.fitBounds(map);
if (stops.length > 1) window.tour.calcRoute(directionsService, directionsDisplay, map);
});
function Tour_startUp(stops) {
document.getElementById('info').innerHTML = "stops:" + stops.length + "<BR>";
if (!window.tour) window.tour = {
updateStops: function(newStops) {
stops = newStops;
},
// map: google map object
// directionsDisplay: google directionsDisplay object (comes in empty)
loadMap: function(map, directionsDisplay) {
var myOptions = {
zoom: 13,
center: new window.google.maps.LatLng(44.833050, -68.749900),
mapTypeId: window.google.maps.MapTypeId.ROADMAP
};
map.setOptions(myOptions);
directionsDisplay.setMap(map);
},
fitBounds: function(map) {
var bounds = new window.google.maps.LatLngBounds();
// extend bounds for each record
jQuery.each(stops, function(key, val) {
var myLatlng = new window.google.maps.LatLng(val.Geometry.Latitude, val.Geometry.Longitude);
bounds.extend(myLatlng);
});
map.fitBounds(bounds);
},
calcRoute: function(directionsService, directionsDisplay, map) {
var directionsDisplays = [];
var batches = [];
var itemsPerBatch = 10; // google API max = 10 - 1 start, 1 stop, and 8 waypoints
var itemsCounter = 0;
var wayptsExist = stops.length > 0;
while (wayptsExist) {
var subBatch = [];
var subitemsCounter = 0;
for (var j = itemsCounter; j < stops.length; j++) {
subitemsCounter++;
subBatch.push({
location: new window.google.maps.LatLng(stops[j].Geometry.Latitude, stops[j].Geometry.Longitude),
stopover: true
});
if (subitemsCounter == itemsPerBatch) break;
}
itemsCounter += subitemsCounter;
batches.push(subBatch);
wayptsExist = itemsCounter < stops.length;
// If it runs again there are still points. Minus 1 before continuing to
// start up with end of previous tour leg
itemsCounter--;
}
// now we should have a 2 dimensional array with a list of a list of waypoints
var combinedResults;
var unsortedResults = [{}]; // to hold the counter and the results themselves as they come back, to later sort
var directionsResultsReturned = 0;
for (var k = 0; k < batches.length; k++) {
var lastIndex = batches[k].length - 1;
var start = batches[k][0].location;
var end = batches[k][lastIndex].location;
// trim first and last entry from array
var waypts = [];
waypts = batches[k];
waypts.splice(0, 1);
waypts.splice(waypts.length - 1, 1);
var request = {
origin: start,
destination: end,
waypoints: waypts,
travelMode: window.google.maps.TravelMode.DRIVING
};
(function(kk) {
directionsService.route(request, function(result, status) {
if (status == window.google.maps.DirectionsStatus.OK) {
var unsortedResult = {
order: kk,
result: result
};
unsortedResults.push(unsortedResult);
directionsResultsReturned++;
if (directionsResultsReturned == batches.length) // we've received all the results. put to map
{
// sort the returned values into their correct order
unsortedResults.sort(function(a, b) {
return parseFloat(a.order) - parseFloat(b.order);
});
var count = 0;
for (var key in unsortedResults) {
if (unsortedResults[key].result != null) {
if (unsortedResults.hasOwnProperty(key)) {
if (count == 0) // first results. new up the combinedResults object
combinedResults = unsortedResults[key].result;
else {
// only building up legs, overview_path, and bounds in my consolidated object. This is not a complete
// directionResults object, but enough to draw a path on the map, which is all I need
combinedResults.routes[0].legs = combinedResults.routes[0].legs.concat(unsortedResults[key].result.routes[0].legs);
combinedResults.routes[0].overview_path = combinedResults.routes[0].overview_path.concat(unsortedResults[key].result.routes[0].overview_path);
combinedResults.routes[0].bounds = combinedResults.routes[0].bounds.extend(unsortedResults[key].result.routes[0].bounds.getNorthEast());
combinedResults.routes[0].bounds = combinedResults.routes[0].bounds.extend(unsortedResults[key].result.routes[0].bounds.getSouthWest());
}
count++;
}
}
}
directionsDisplay.setDirections(combinedResults);
var legs = combinedResults.routes[0].legs;
for (var i = 0; i < legs.length; i++) {
var markerletter = "A".charCodeAt(0);
markerletter += i;
markerletter = String.fromCharCode(markerletter);
createMarker(directionsDisplay.getMap(), legs[i].start_location, "marker" + i, "some text for marker " + i + "<br>" + legs[i].start_address, markerletter);
}
var i = legs.length;
var markerletter = "A".charCodeAt(0);
markerletter += i;
markerletter = String.fromCharCode(markerletter);
createMarker(directionsDisplay.getMap(), legs[legs.length - 1].end_location, "marker" + i, "some text for the " + i + "marker<br>" + legs[legs.length - 1].end_address, markerletter);
}
} else {
document.getElementById('info').innerHTML += "failed[" + kk + "]:" + status + "<br>";
}
});
})(k);
}
}
};
}
var infowindow = new google.maps.InfoWindow({
size: new google.maps.Size(150, 50)
});
function createMarker(map, latlng, label, html, color) {
// alert("createMarker("+latlng+","+label+","+html+","+color+")");
var contentString = '<b>' + label + '</b><br>' + html;
var marker = new google.maps.Marker({
position: latlng,
map: map,
title: label,
zIndex: Math.round(latlng.lat() * -100000) << 5
});
marker.myname = label;
google.maps.event.addListener(marker, 'click', function() {
infowindow.setContent(contentString);
infowindow.open(map, marker);
});
return marker;
}
var stops = [{
"Geometry": {
"Latitude": 44.833050,
"Longitude": -68.749900
}
}, {
"Geometry": {
"Latitude": 44.832950,
"Longitude": -68.749930
}
}, {
"Geometry": {
"Latitude": 44.832960,
"Longitude": -68.749140
}
}, {
"Geometry": {
"Latitude": 44.832860,
"Longitude": -68.749130
}
}, {
"Geometry": {
"Latitude": 44.832800,
"Longitude": -68.749730
}
}, {
"Geometry": {
"Latitude": 44.832730,
"Longitude": -68.750410
}
}, {
"Geometry": {
"Latitude": 44.833130,
"Longitude": -68.751080
}
}, {
"Geometry": {
"Latitude": 44.829890,
"Longitude": -68.753860
}
}, {
"Geometry": {
"Latitude": 44.828530,
"Longitude": -68.755060
}
}, {
"Geometry": {
"Latitude": 44.828260,
"Longitude": -68.754960
}
}, {
"Geometry": {
"Latitude": 44.828160,
"Longitude": -68.754830
}
}, {
"Geometry": {
"Latitude": 44.827990,
"Longitude": -68.754750
}
}, {
"Geometry": {
"Latitude": 44.826670,
"Longitude": -68.754470
}
}, {
"Geometry": {
"Latitude": 44.826310,
"Longitude": -68.754480
}
}, {
"Geometry": {
"Latitude": 44.826070,
"Longitude": -68.754570
}
}, {
"Geometry": {
"Latitude": 44.825570,
"Longitude": -68.755010
}
}, {
"Geometry": {
"Latitude": 44.825380,
"Longitude": -68.755350
}
}, {
"Geometry": {
"Latitude": 44.825280,
"Longitude": -68.755570
}
}, {
"Geometry": {
"Latitude": 44.825250,
"Longitude": -68.755610
}
}, {
"Geometry": {
"Latitude": 44.824140,
"Longitude": -68.758790
}
}, {
"Geometry": {
"Latitude": 44.823260,
"Longitude": -68.761360
}
}, {
"Geometry": {
"Latitude": 44.821690,
"Longitude": -68.765580
}
}, {
"Geometry": {
"Latitude": 44.820390,
"Longitude": -68.769330
}
}, {
"Geometry": {
"Latitude": 44.819820,
"Longitude": -68.771040
}
}, {
"Geometry": {
"Latitude": 44.819550,
"Longitude": -68.772200
}
}, {
"Geometry": {
"Latitude": 44.819520,
"Longitude": -68.772390
}
}, {
"Geometry": {
"Latitude": 44.819480,
"Longitude": -68.772730
}
}, {
"Geometry": {
"Latitude": 44.819450,
"Longitude": -68.773040
}
}, {
"Geometry": {
"Latitude": 44.819380,
"Longitude": -68.775300
}
}, {
"Geometry": {
"Latitude": 44.819250,
"Longitude": -68.778010
}
}, {
"Geometry": {
"Latitude": 44.819070,
"Longitude": -68.779150
}
}, {
"Geometry": {
"Latitude": 44.818900,
"Longitude": -68.779830
}
}, {
"Geometry": {
"Latitude": 44.818710,
"Longitude": -68.780390
}
}, {
"Geometry": {
"Latitude": 44.816720,
"Longitude": -68.785180
}
}, {
"Geometry": {
"Latitude": 44.815730,
"Longitude": -68.787300
}
}, {
"Geometry": {
"Latitude": 44.815340,
"Longitude": -68.787870
}
}, {
"Geometry": {
"Latitude": 44.814670,
"Longitude": -68.788620
}
}, {
"Geometry": {
"Latitude": 44.814030,
"Longitude": -68.789150
}
}, {
"Geometry": {
"Latitude": 44.813780,
"Longitude": -68.789320
}
}, {
"Geometry": {
"Latitude": 44.813000,
"Longitude": -68.789820
}
}, {
"Geometry": {
"Latitude": 44.811730,
"Longitude": -68.790720
}
}, {
"Geometry": {
"Latitude": 44.807740,
"Longitude": -68.794450
}
}, {
"Geometry": {
"Latitude": 44.804550,
"Longitude": -68.798370
}
}, {
"Geometry": {
"Latitude": 44.803410,
"Longitude": -68.799800
}
}, {
"Geometry": {
"Latitude": 44.802590,
"Longitude": -68.800500
}
}, {
"Geometry": {
"Latitude": 44.802480,
"Longitude": -68.800570
}
}, {
"Geometry": {
"Latitude": 44.802380,
"Longitude": -68.800630
}
}, {
"Geometry": {
"Latitude": 44.802180,
"Longitude": -68.800750
}
}, {
"Geometry": {
"Latitude": 44.801970,
"Longitude": -68.800850
}
}, {
"Geometry": {
"Latitude": 44.798600,
"Longitude": -68.802040
}
}, {
"Geometry": {
"Latitude": 44.794100,
"Longitude": -68.803590
}
}, {
"Geometry": {
"Latitude": 44.793830,
"Longitude": -68.803700
}
}, {
"Geometry": {
"Latitude": 44.793670,
"Longitude": -68.803780
}
},
/* {
"Geometry": {
"Latitude": 44.793440,
"Longitude": -68.803900
}
}, {
"Geometry": {
"Latitude": 44.793160,
"Longitude": -68.804070
}
}, {
"Geometry": {
"Latitude": 44.792960,
"Longitude": -68.804190
}
}, {
"Geometry": {
"Latitude": 44.792680,
"Longitude": -68.804380
}
}, {
"Geometry": {
"Latitude": 44.792320,
"Longitude": -68.804640
}
}, {
"Geometry": {
"Latitude": 44.786920,
"Longitude": -68.808470
}
}, {
"Geometry": {
"Latitude": 44.786890,
"Longitude": -68.808490
}
}, {
"Geometry": {
"Latitude": 44.786600,
"Longitude": -68.808700
}
}, {
"Geometry": {
"Latitude": 44.786230,
"Longitude": -68.808980
}
}, {
"Geometry": {
"Latitude": 44.786020,
"Longitude": -68.809120
}
}, */
{
"Geometry": {
"Latitude": 44.785640,
"Longitude": -68.809400
}
}, {
"Geometry": {
"Latitude": 44.785180,
"Longitude": -68.809770
}
}, {
"Geometry": {
"Latitude": 44.784990,
"Longitude": -68.809940
}
}, {
"Geometry": {
"Latitude": 44.784450,
"Longitude": -68.810470
}
}, {
"Geometry": {
"Latitude": 44.784270,
"Longitude": -68.810680
}
}, {
"Geometry": {
"Latitude": 44.783960,
"Longitude": -68.811040
}
}, {
"Geometry": {
"Latitude": 44.783750,
"Longitude": -68.811310
}
}, {
"Geometry": {
"Latitude": 44.783530,
"Longitude": -68.811570
}
}, {
"Geometry": {
"Latitude": 44.783400,
"Longitude": -68.811740
}
}, {
"Geometry": {
"Latitude": 44.782900,
"Longitude": -68.812470
}
}, {
"Geometry": {
"Latitude": 44.782760,
"Longitude": -68.812680
}
}, {
"Geometry": {
"Latitude": 44.782620,
"Longitude": -68.812900
}
}, {
"Geometry": {
"Latitude": 44.782450,
"Longitude": -68.813150
}
}, {
"Geometry": {
"Latitude": 44.782340,
"Longitude": -68.813350
}
}, {
"Geometry": {
"Latitude": 44.782230,
"Longitude": -68.813570
}
}, {
"Geometry": {
"Latitude": 44.782020,
"Longitude": -68.813980
}
}, {
"Geometry": {
"Latitude": 44.781840,
"Longitude": -68.814370
}
}, {
"Geometry": {
"Latitude": 44.781790,
"Longitude": -68.814490
}
}, {
"Geometry": {
"Latitude": 44.781640,
"Longitude": -68.814810
}
}, {
"Geometry": {
"Latitude": 44.781540,
"Longitude": -68.815080
}
}, {
"Geometry": {
"Latitude": 44.780980,
"Longitude": -68.816730
}
}, {
"Geometry": {
"Latitude": 44.780470,
"Longitude": -68.819040
}
}, {
"Geometry": {
"Latitude": 44.780370,
"Longitude": -68.819630
}
}, {
"Geometry": {
"Latitude": 44.779180,
"Longitude": -68.828500
}
}, {
"Geometry": {
"Latitude": 44.777820,
"Longitude": -68.838660
}
}, {
"Geometry": {
"Latitude": 44.776430,
"Longitude": -68.848970
}
}, {
"Geometry": {
"Latitude": 44.775570,
"Longitude": -68.853390
}
}, {
"Geometry": {
"Latitude": 44.774960,
"Longitude": -68.855750
}
}, {
"Geometry": {
"Latitude": 44.772540,
"Longitude": -68.863700
}
}, {
"Geometry": {
"Latitude": 44.770830,
"Longitude": -68.869140
}
}, {
"Geometry": {
"Latitude": 44.770790,
"Longitude": -68.869270
}
}, {
"Geometry": {
"Latitude": 44.770750,
"Longitude": -68.869400
}
}, {
"Geometry": {
"Latitude": 44.770040,
"Longitude": -68.871710
}
}, {
"Geometry": {
"Latitude": 44.768590,
"Longitude": -68.876700
}
}, {
"Geometry": {
"Latitude": 44.767780,
"Longitude": -68.880520
}
}, {
"Geometry": {
"Latitude": 44.767660,
"Longitude": -68.881240
}
}, {
"Geometry": {
"Latitude": 44.766610,
"Longitude": -68.887230
}
}
];html,
body,
#map {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry"></script>
<div id="info"></div>
<div id="map" style="border: 2px solid #3872ac;"></div>回答2:
If you already have a pre-optimized list of 100 addresses stored in JSON data like this (as you say you do):
[
{
lat:36,
lng:-80
},
{
lat:37,
lng:-81
}
]
then you can use a loop to get the polylines between each of these locations using the Directions API, and then print the polylines to the map.
var map;
var director;
function initialize() {
var mapOptions = {
center: { lat: -34.397, lng: 150.644},
zoom: 8
};
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
director = new google.maps.DirectionsService();
}
google.maps.event.addDomListener(window, 'load', initialize);
var json = [{lat:36, lng:-80}, {lat:37, lng:-81} ...... ]; //loaded using Ajax, copy and pasted to string, etc.
var pts = json.map(function(a){return new google.maps.LatLng(a.lat, a.lng0)});
var polylines = [];
function get(start, end, delay){
setTimeout(function(){
director.route({
origin:start,
destination:end,
travelMode:google.maps.TravelMode.DRIVING //or whatever mode you want
}, function(results, status){
if(status === 'OK'){
var routePts = []
routePts = routePts.concat.apply(routePts, results[0].routes[0].legs[0].steps.map(function(a){return a.path}));
polylines.push(new google.maps.Polyline({
path:routePts,
map:map
}));
}
});
}, delay);
}
function putToMap(){
for(var i=0; i<pts.length-1; i++){
get(pts[i], pts[i+1], i*200);
var m = new google.maps.Marker({
position:pts[i],
map:map
});
}
var m = new google.maps.Marker({
position:pts[pts.length-1],
map:map
});
}
Hopefully this will be appropriately readable and streamlined enough to do what you want. If I am correct, you already have your points optimized, and stored in some sort of JSON. Since I do not know exactly how your JSON is configured, I gave a general example. It will need to be updated based on how yours is.
Essentially, what it does is take all the points, and get the directions for them after a timeout. For less time, you can integrate waypoints into this. I chose not to for demonstration purposes. It adds the route's polyline to the polylines array (for storage), and also draws it to the map. It also draws a marker to the map at the same time.
来源：https://stackoverflow.com/questions/31337710/want-to-display-direction-between-100-address-on-google-maps