const MAPS_API_KEY = ''; // Put your API Key for Maps SDK here
const LS_API_KEY = ''; // Put your API Key for Location Selection APIs here
const MAPS_URL = `https://maps.googleapis.com/maps/api/js?key=${
MAPS_API_KEY}&libraries=places,geometry&callback=initMap`;
const LS_BASE_URL = 'https://locationselection.googleapis.com/v1beta';
const API_URL_PUPS_FOR_PLACE =
`${LS_BASE_URL}:findPickupPointsForPlace?key=${LS_API_KEY}`;
const API_URL_PUPS_FOR_LOCATION =
`${LS_BASE_URL}:findPickupPointsForLocation?key=${LS_API_KEY}`;
const API_URL_NEARBY_PLACES =
`${LS_BASE_URL}:findNearbyPlaces?key=${LS_API_KEY}`;
const FORM_ID_PUPS_FOR_LOCATION = 'form-pups-for-location';
const FORM_ID_PUPS_FOR_PLACE = 'form-pups-for-place';
const FORM_ID_NEARBY_PLACES = 'form-nearby-places';
const FORM_TO_API_URL_MAP = {
[FORM_ID_PUPS_FOR_LOCATION]: API_URL_PUPS_FOR_LOCATION,
[FORM_ID_PUPS_FOR_PLACE]: API_URL_PUPS_FOR_PLACE,
[FORM_ID_NEARBY_PLACES]: API_URL_NEARBY_PLACES,
};
const RED_PIN = 'http://maps.google.com/mapfiles/ms/icons/red-dot.png';
const GREEN_PIN = 'http://maps.google.com/mapfiles/ms/icons/green-dot.png';
const BLUE_PIN = 'http://maps.google.com/mapfiles/ms/icons/blue-dot.png';
const DEFAULT_ZOOM_LEVEL = 18;
// codepoint from https://fonts.google.com/icons
const SEARCH_LOCATION_MARKER = '\ue7f2';
const GOOGLEPLEX = {
lat: 37.422001,
lng: -122.084061
};
let map;
let polyLines = [];
let polygons = [];
let mapMarkers = [];
let entranceMarkers = [];
function loadMap() {
const script = document.createElement('script');
script.src = MAPS_URL;
document.body.appendChild(script);
}
function initMap() {
map = new google.maps.Map(
document.getElementById('map'),
{center: GOOGLEPLEX, zoom: DEFAULT_ZOOM_LEVEL});
}
function setupForm() {
const form = document.getElementsByTagName('form')[0];
form.addEventListener('submit', onFormSubmit);
}
function onFormSubmit(evt) {
evt.preventDefault();
evt.stopPropagation();
const formData = new FormData(evt.target);
fetchAPIResults(formData);
}
function transformFormData(fd) {
let transformedFd = {
localizationPreferences: {},
};
const formId = document.getElementsByTagName('form')[0].id;
if (formId === FORM_ID_PUPS_FOR_LOCATION ||
formId === FORM_ID_PUPS_FOR_PLACE) {
transformedFd = {localizationPreferences: {}, travelModes: []};
}
const addSearchLocation = () => {
if (transformedFd.searchLocation == null) {
transformedFd.searchLocation = {};
}
};
const addDestination = () => {
if (transformedFd.destination == null) {
transformedFd.destination = {};
}
};
fd.forEach((value, key) => {
switch (key) {
case 'travelModes':
transformedFd.travelModes.push(value);
break;
case 'languageCode':
transformedFd.localizationPreferences[key] = value;
break;
case 'regionCode':
transformedFd.localizationPreferences[key] = value;
break;
case 'searchLocation-latitude':
if (value) {
addSearchLocation();
transformedFd.searchLocation['latitude'] = value;
}
break;
case 'searchLocation-longitude':
if (value) {
addSearchLocation();
transformedFd.searchLocation['longitude'] = value;
}
break;
case 'destination-latitude':
if (value) {
addDestination();
transformedFd.destination['latitude'] = value;
}
break;
case 'destination-longitude':
if (value) {
addDestination();
transformedFd.destination['longitude'] = value;
}
break;
default:
transformedFd[key] = value;
break;
}
});
const json = JSON.stringify(transformedFd, undefined, 2);
return json;
}
async function fetchAPIResults(fd) {
const formId = document.getElementsByTagName('form')[0].id;
const url = FORM_TO_API_URL_MAP[formId];
const transformedFd = transformFormData(fd);
const response = await fetch(url, {method: 'POST', body: transformedFd});
const result = await response.json();
// Display JSON
displayAPIResults(result);
// Update map
let searchLocation = {};
if (JSON.parse(transformedFd).searchLocation) {
searchLocation = {
lat: Number(JSON.parse(transformedFd).searchLocation.latitude),
lng: Number(JSON.parse(transformedFd).searchLocation.longitude),
};
}
switch (formId) {
case FORM_ID_PUPS_FOR_PLACE:
markPickupPointsForPlace(result);
break;
case FORM_ID_PUPS_FOR_LOCATION:
markPickupPointsForLocation(result, searchLocation);
break;
case FORM_ID_NEARBY_PLACES:
markNearbyPlaces(result, searchLocation);
break;
default:
break;
}
}
function displayAPIResults(data) {
const output = document.getElementById('output');
output.textContent = JSON.stringify(data, undefined, 2);
}
function markNearbyPlaces(data, searchLocation) {
if (data.error) {
resetMap();
return;
}
const places = [];
for (const placeResult of data.placeResults) {
places.push(placeResult.place);
}
resetMap(searchLocation);
markPlaces(places, searchLocation);
for (const place of places) {
markEntrances(place.associatedCompounds, place);
}
markSearchLocation(searchLocation, '');
for (const place of places) {
mapPolygons(place.associatedCompounds);
}
}
function markPickupPointsForPlace(data) {
if (data.error) {
resetMap();
return;
}
const place = data.placeResult.place;
const pickupPoints = data.pickupPointResults;
const searchLocation = {
lat: place.geometry.location.latitude,
lng: place.geometry.location.longitude
};
resetMap(searchLocation);
markPickupPoints(place, pickupPoints, searchLocation);
markEntrances(place.associatedCompounds, place);
markSearchLocation(searchLocation, place.displayName);
createPolyLinesOneToMany(searchLocation, pickupPoints);
mapPolygons(place.associatedCompounds);
}
function markPickupPointsForLocation(data, searchLocation) {
if (data.error) {
resetMap();
return;
}
const placeIdToPlace = {};
// A dict, and the key is placeId(str)s and the value is a list of pups.
const placePickupPoints = {};
data.placeResults.forEach(result => {
placeIdToPlace[result.place.placeId] = result.place;
placePickupPoints[result.place.placeId] = [];
});
data.placePickupPointResults.forEach(result => {
placePickupPoints[result.associatedPlaceId].push(result.pickupPointResult);
})
resetMap(searchLocation);
for (const placeId in placePickupPoints) {
const place = placeIdToPlace[placeId];
const pups = placePickupPoints[placeId];
markEntrances(place.associatedCompounds, place);
markPickupPoints(place, pups, searchLocation);
createPolyLinesOneToMany(searchLocation, pups);
mapPolygons(place.associatedCompounds);
}
// update the marker rank to global order
for (let i = 0; i < mapMarkers.length; i++) {
mapMarkers[i].label = String(i);
}
markSearchLocation(searchLocation, '');
}
function markPlaces(places, searchLocation) {
for (const place of places) {
const placeLocation = place.geometry.location;
const infoWindow =
new google.maps.InfoWindow({content: createInfoWindow(place, null)});
const marker = new google.maps.Marker({
position: toLatLngLiteral(placeLocation),
animation: google.maps.Animation.DROP,
map: map,
});
marker.addListener('click', () => {
infoWindow.open(map, marker);
});
map.addListener('click', () => {
infoWindow.close();
});
mapMarkers.push(marker);
}
}
function markEntrances(compounds, place) {
if (!compounds) {
return;
}
for (const compound of compounds) {
if (!compound.entrances) {
continue;
}
for (const entrance of compound.entrances) {
const entranceMarker = new google.maps.Marker({
position: toLatLngLiteral(entrance.location),
icon: {
url: BLUE_PIN,
},
animation: google.maps.Animation.DROP,
map: map,
});
const infoWindow =
new google.maps.InfoWindow({content: createInfoWindow(place, null)});
entranceMarker.addListener('click', () => {
infoWindow.open(map, entranceMarker);
});
map.addListener('click', () => {
infoWindow.close();
});
entranceMarkers.push(entranceMarker);
}
}
}
function mapPolygons(many) {
if (!many) {
return;
}
for (const toPoint of many) {
const data = toPoint.geometry.displayBoundary;
if (data == null || data.coordinates == null) {
continue;
}
const value = data.coordinates;
const polyArray = JSON.parse(JSON.stringify(value))[0];
const usedColors = [];
const finalLatLngs = [];
let color = '';
for (let i = 0; i < polyArray.length; ++i) {
if (polyArray[i] != null && polyArray[i].length > 0) {
color = getColor(usedColors);
usedColors.push(color);
if (isArrLatLng(polyArray[i])) {
finalLatLngs.push({lat: polyArray[i][1], lng: polyArray[i][0]});
}
}
}
const poly = new google.maps.Polygon({
strokeColor: color,
strokeOpacity: 0.2,
strokeWeight: 5,
fillColor: color,
fillOpacity: 0.1,
paths: finalLatLngs,
map: map,
});
polygons.push(poly);
}
}
function getColor(usedColors) {
let color = generateStrokeColor();
while (usedColors.includes(color)) {
color = generateStrokeColor();
}
return color;
}
function generateStrokeColor() {
return Math.floor(Math.random() * 16777215).toString(16);
}
function isArrLatLng(currArr) {
if (!currArr || currArr.length !== 2) {
return false;
}
return ((typeof currArr[0]) === 'number') &&
((typeof currArr[1]) === 'number');
}
function toLatLngLiteral(latlng) {
return {lat: latlng.latitude, lng: latlng.longitude};
}
function pickupHasRestrictions(pickupPointData) {
let hasRestrictions = false;
const travelDetails = pickupPointData.travelDetails;
for (let i = 0; i < travelDetails.length; i++) {
if (travelDetails[i].trafficRestriction !== 'NO_RESTRICTION') {
hasRestrictions = true;
}
}
return hasRestrictions;
}
function markPickupPoints(place, pickupPoints, searchLocation) {
for (let i = 0; i < pickupPoints.length; i++) {
const pickupPointData = pickupPoints[i];
const pickupPoint = pickupPoints[i].pickupPoint;
const pupIcon =
pickupHasRestrictions(pickupPointData) ? RED_PIN : GREEN_PIN;
const contentString = createInfoWindow(place, pickupPoint);
const pupInfoWindow = new google.maps.InfoWindow({content: contentString});
const marker = new google.maps.Marker({
position: toLatLngLiteral(pickupPoint.location),
label: {
text: String(i),
fontWeight: 'bold',
fontSize: '20px',
color: '#000'
},
animation: google.maps.Animation.DROP,
map,
icon: {
url: pupIcon,
anchor: new google.maps.Point(14, 43),
labelOrigin: new google.maps.Point(-5, 5)
},
});
marker.addListener('click', () => {
pupInfoWindow.open(map, marker);
});
map.addListener('click', () => {
pupInfoWindow.close();
});
mapMarkers.push(marker);
}
}
function createInfoWindow(place, pickupPoint) {
let result = [];
const addResult = (value, key, map) =>
result.push(`<p><span class="info-label">${key}:</span> ${value}</p>`);
const formatAddress = (address) => address.lines.join(',');
const placeFieldMap = new Map();
if (place !== null) {
placeFieldMap.set('Place', '');
placeFieldMap.set('Name', place.displayName);
placeFieldMap.set('Place ID', place.placeId);
placeFieldMap.set('Address', formatAddress(place.address.formattedAddress));
}
const pickupPointFieldMap = new Map();
if (pickupPoint !== null) {
pickupPointFieldMap.set('Pickup point', '');
pickupPointFieldMap.set('Name', pickupPoint.displayName);
}
placeFieldMap.forEach(addResult);
result.push('<hr/>');
pickupPointFieldMap.forEach(addResult);
return result.join('');
}
function markSearchLocation(location, label) {
const infoWindow =
new google.maps.InfoWindow({content: `<p><b>Name: </b>${label}</p>`});
const marker = new google.maps.Marker({
position: location,
map,
label: {
text: SEARCH_LOCATION_MARKER,
fontFamily: 'Material Icons',
color: '#ffffff',
fontSize: '18px',
fontWeight: 'bold',
},
});
marker.addListener('click', () => {
infoWindow.open(map, marker);
});
map.addListener('click', () => {
infoWindow.close();
});
mapMarkers.push(marker);
}
function createPolyLinesOneToMany(one, many) {
const lineSymbol = {
path: google.maps.SymbolPath.FORWARD_CLOSED_ARROW,
};
for (const toPoint of many) {
const line = new google.maps.Polyline({
path: [one, toLatLngLiteral(toPoint.pickupPoint.location)],
icons: [
{
icon: lineSymbol,
offset: '100%',
},
],
map: map,
});
polyLines.push(line);
}
}
/******* Reset the map ******/
function deleteMarkers() {
for (const mapMarker of mapMarkers) {
mapMarker.setMap(null);
}
mapMarkers = [];
}
function deletePolyLines() {
for (const polyLine of polyLines) {
polyLine.setMap(null);
}
polyLines = [];
}
function deleteEntranceMarkers() {
for (const entranceMarker of entranceMarkers) {
entranceMarker.setMap(null);
}
entranceMarkers = [];
}
function clearPolygons() {
for (let i = 0; i < polygons.length; i++) {
polygons[i].setMap(null);
}
polygons = [];
}
function resetMap(searchLocation) {
if (searchLocation) {
map.setCenter(searchLocation);
} else {
map.setCenter(GOOGLEPLEX);
}
map.setZoom(DEFAULT_ZOOM_LEVEL);
deleteMarkers();
deletePolyLines();
deleteEntranceMarkers();
clearPolygons();
}
// Initiate map & set form event handlers
loadMap();
setupForm();
Antes de usar la API de Location Selection para buscar puntos de encuentro, sigue las instrucciones que se indican aquí para realizar la integración con la biblioteca cliente.
El servicio de selección de ubicación proporciona tres APIs para la selección de partidas y destinos: FindNearbyPlaces, FindPickupPointsForPlace y FindPickupPointsForLocation.
Usa FindNearbyPlaces para recuperar lugares cerca de la ubicación de la búsqueda o del dispositivo. Los lugares se clasifican por proximidad a la ubicación y su importancia para el transporte compartido. FindNearbyPlaces devuelve una lista de lugares que se pueden mostrar para permitir que el usuario haga la mejor selección. Una vez que selecciones un lugar, usa FindPickupPointsForPlace para recuperar los puntos de retiro del lugar seleccionado.
Usa FindPickupPointsForLocation para recuperar lugares y sus puntos de retiro asociados cerca de la ubicación de la búsqueda o del dispositivo en la misma llamada RPC. Cada punto de partida
está asociado con un lugar. Los puntos de partida se clasifican por proximidad a la ubicación y su importancia para el transporte compartido. Ten en cuenta que los puntos de retiro
de varios lugares se ordenan juntos. FindPickupPointsForLocation combina FindNearbyPlaces y FindPickupPointsForPlace. Por ejemplo, supongamos que la ubicación de la solicitud está cerca de Place P1, P2 y P3. Si el mejor punto de partida T1 está asociado con el lugar P2 y el siguiente mejor punto de partida está asociado con el lugar P1, los resultados tendrán el orden [T1:P2, T2:P1, ...].
Si prefieres mostrar lugares al usuario antes de la selección de puntos de partida o mostrar lugares cercanos arrastrando un marcador, usa la siguiente llamada RPC:
FindNearbyPlacesRequest find_nearby_places_request =
FindNearbyPlacesRequest.newBuilder()
.setLocalizationPreferences(LocalizationPreferences.newBuilder()
// Language used for localizing text such as name or address.
.setLanguageCode("en")
.setRegionCode("US")
.build())
// Rider's location or location of dragged pin.
.setSearchLocation(LatLng.newBuilder().setLatitude(37.365647).setLongitude(-121.925356))
// Number of places requested.
.setMaxResults(3)
.build();
FindNearbyPlacesResponse findNearbyPlacesResponse =
locationSelectionBetaClient.findNearbyPlaces(find_nearby_places_request);
La llamada RPC muestra una lista clasificada de respuestas de lugar que satisfacen los criterios de entrada, ordenados por una combinación de proximidad e importancia. Puedes permitir que el pasajero elija un lugar o usar el primer resultado y continuar con la selección del punto de partida. Cada respuesta de lugar tiene un place_id único que se puede usar en FindPickupPointsForPlaceRequest para recuperar puntos de retiro. Para obtener más información, consulta Cómo buscar por ID de lugar.
FindPickupPointsForLocationRequest FindPickupPointsForLocationRequest =
FindPickupPointsForLocationRequest.newBuilder()
// Language used for localizing text such as name and address.
.setLocalizationPreferences(LocalizationPreferences.newBuilder().setRegionCode("US").setLanguageCode("en"))
// The search location of the rider or the dropped pin.
.setSearchLocation(LatLng.newBuilder().setLatitude(-23.482049).setLongitude(-46.602135))
// The max results returned.
.setMaxResults(5)
// List of travel modes. At least one of the travel modes must be supported by the pickup points.
.addTravelModes(TravelMode.DRIVING)
// Specifies the sorting order of matching pickup points.
.setOrderBy(PickupPointOrder.DISTANCE_FROM_SEARCH_LOCATION)
.build();
FindPickupPointsForLocationResponse FindPickupPointsForLocationResponse =
locationSelectionService.FindPickupPointsForLocation(
RpcClientContext.create(), FindPickupPointsForLocationRequest);
La llamada RPC muestra una lista clasificada de puntos de partida que satisfacen los criterios de entrada, ordenados según una combinación de importancia y proximidad. Esta llamada RPC combina FindNearbyPlaces y FindPickupPointsForPlaceRequest, y se puede usar en lugar de combinar las otras dos llamadas.
Busca por ID de lugar
Puedes obtener un place_id usando FindNearbyPlaces o el servicio Autocomplete de la API de Places. Luego, usa la siguiente llamada RPC para proporcionar puntos de partida óptimos para el lugar especificado:
FindPickupPointsForPlaceRequest findPickupPointsForPlaceRequest =
FindPickupPointsForPlaceRequest.newBuilder()
// Language used for localizing text such as name and address.
.setLocalizationPreferences(LocalizationPreferences.newBuilder().setRegionCode("US").setLanguageCode("en"))
// Place ID of the place for which pickup points are being fetched;
// for example, Hilton Hotel, Downtown San Jose.
.setPlaceId("ChIJwTUa-q_Mj4ARff4yludGH-M")
// List of travel modes. At least one of the travel modes must be supported by the pickup points.
.addTravelModes(TravelMode.DRIVING)
// Rider's location or location of dragged pin.
// It is recommended to use the same location that was used in `FindNearbyPlaces` for better quality.
.setSearchLocation(LatLng.newBuilder().setLatitude(37.329472).setLongitude(-121.890449))
.setOrderBy(PickupPointOrder.DISTANCE_FROM_SEARCH_LOCATION)
.setMaxResults(5)
.build();
FindPickupPointsForPlaceResponse findPickupPointsForPlaceResponse =
locationSelectionBetaClient.findPickupPointsForPlace(findPickupPointsForPlaceRequest);
FindPickupPointsForPlace muestra PickupPointResponses con latitud y longitud para los puntos en los que se puede recoger a un pasajero.
compoundBuilding: Es un solo edificio independiente, como un centro comercial o un supermercado.
compoundSection: Es un compuesto dentro de un complejo más grande, como una sola tienda en un centro comercial.
compoundGrounds: Todo lo asociado con un compoundBuilding, como un centro comercial, su estacionamiento y cualquier otro edificio dentro de ese estacionamiento
unrecognized: Valor predeterminado
Geometría: coordenadas del polígono delineado, almacenadas en una estructura GeoJSON en el campo displayBoundary. Estas coordenadas se usan para construir el contorno de la sección, el edificio o los terrenos.
Entradas: Las coordenadas de latitud y longitud de todas las entradas y salidas ubicadas
Location Selection muestra cualquier tipo compuesto asociado con la ubicación de la búsqueda. Si la ubicación de búsqueda es en una tienda particular de un centro comercial, la selección de ubicación muestra lo siguiente:
* La tienda específica, sus entradas y salidas, y el contorno de la tienda
* el edificio compuesto (el centro comercial), sus entradas y salidas y el contorno del centro comercial
* los terrenos del complejo (el centro comercial + estacionamiento), sus entradas y salidas, y el contorno de todo el terreno
En esta imagen, se muestran los tres tipos compuestos que se muestran.
En esta imagen, se muestran varias ubicaciones dentro de un aeropuerto, con el límite de un edificio dentro del aeropuerto y los límites del aeropuerto, además de todos sus terrenos relacionados.
