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使用位置選取功能 (Beta 版) 搜尋乘車上車地點

        <html lang="en">
  <head>
    <meta charset="utf-8">
    <title>Location Selection Demo</title>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
  </head>
  <body>
  <h1>Location Selection Demo - FindPickupPointsForPlace</h1>
  <div class="container">
    <section class="form-container">
      <form id="form-pups-for-place" name="location-selection">
        <label class="form-label" for="placeId">Place ID</label>
        <input type="text" id="placeId" name="placeId" value="ChIJwTUa-q_Mj4ARff4yludGH-M" />

        <label class="form-label" for="languageCode">Language Code</label>
        <input type="text" id="languageCode" name="languageCode" value="en-US" />

        <label class="form-label" for="regionCode">Region Code</label>
        <input type="text" id="regionCode" name="regionCode" value="US" />

        <label class="form-label" for="searchLocation-latitude">Search Location - Latitude</label>
        <input type="text" id="searchLocation-latitude" name="searchLocation-latitude" value="37.329472" />

        <label class="form-label" for="searchLocation-longitude">Search Location - Longitude</label>
        <input type="text" id="searchLocation-longitude" name="searchLocation-longitude" value="-121.890449" />

        <label class="form-label" for="orderBy">Order By</label>
        <select id="orderBy" name="orderBy">
          <option value="DISTANCE_FROM_SEARCH_LOCATION" selected>DISTANCE_FROM_SEARCH_LOCATION</option>
          <option value="WALKING_ETA_FROM_SEARCH_LOCATION">WALKING_ETA_FROM_SEARCH_LOCATION</option>
          <option value="DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION">DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION</option>
        </select>

        <label class="form-label" for="destination-latitude">Destination - Latitude</label>
        <input type="text" id="destination-latitude" name="destination-latitude" value="" />

        <label class="form-label" for="destination-longitude">Destination - Longitude</label>
        <input type="text" id="destination-longitude" name="destination-longitude" value="" />

        <label class="form-label" for="maxResults">Max Results</label>
        <input type="number" id="maxResults" name="maxResults" min="1" value="5" step="1" />

        <fieldset>
          <legend>Travel Modes</legend>
          <div>
            <input type="checkbox" id="walking" name="travelModes" value="WALKING" checked>
            <label for="walking" class="form-checkbox-label">WALKING</label>
          </div>
          <div>
            <input type="checkbox" id="driving" name="travelModes" value="DRIVING" checked>
            <label for="driving" class="form-checkbox-label">DRIVING</label>
          </div>
          <div>
            <input type="checkbox" id="twoWheeler" name="travelModes" value="TWO_WHEELER">
            <label for="twoWheeler" class="form-checkbox-label">TWO_WHEELER</label>
          </div>
        </fieldset>

        <label class="form-label" for="computeWalkingEta">Compute Walking ETA</label>
        <select id="computeWalkingEta" name="computeWalkingEta" class="boolean">
          <option value="true">true</option>
          <option value="false" selected>false</option>
        </select>

        <label class="form-label" for="computeDrivingEta">Compute Driving ETA</label>
        <select id="computeDrivingEta" name="computeDrivingEta" class="boolean">
          <option value="true">true</option>
          <option value="false" selected>false</option>
        </select>

        <input class="submit-button" type="submit" value="Call" />
      </form>
    </section>
    <section>
      <div id="map" class="map"></div>
    </section>
  </div>
  <section class="output-container">
    <h2>Response</h2>
    <pre id="output"></pre>
  </section>
  </body>
  </html>

        body {
    font-family: 'Google Sans';
}

.container {
    display: grid;
    grid-template-columns: 30% 1fr;
    grid-template-rows: 100%;
    grid-column-gap: 20px;
    grid-row-gap: 0px;
}

h1 {
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 20px;
    font-weight: bold;
}

h2 {
    font-size: 18px;
    font-weight: bold;
}

h1,
.form-container,
.output-container {
    margin-left: 20px;
}

.map,
.output-container {
    margin-right: 20px;
}

.form-container {
    border: 1px solid black;
    padding: 20px;
}

.map {
    border: 1px solid black;
    min-height: 800px;
}

.output-container {
    margin-top: 20px;
}

#output {
    border: 1px solid red;
    font-family: 'Google Sans';
    min-height: 150px;
}


label:not(.form-checkbox-label), legend {
    overflow-wrap: break-word;
    font-weight: bold;
}

input:not([type="checkbox"]), select, fieldset {
    font-family: 'Google Sans';
    width: 100%;
    padding: 5px 5px;
    margin: 0 0 20px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
}


input[type="submit"] {
    min-width: 150px;
    background-color: green; /* Blue */
    border: none;
    color: white;
    padding: 15px 15px;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 20px;
    width: 50%;
}

input[type="submit"]:hover {
    background-color: darkseagreen;
}

input[type="submit"]:active {
    background-color: darkseagreen;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
}

.info-label {
    font-weight: bold;
}

        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();

        <html lang="en">
<head>
  <meta charset="utf-8">
  <title>Location Selection Demo</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
</head>
<body>
<h1>Location Selection Demo - FindPickupPointsForLocation</h1>
<div class="container">
  <section class="form-container">
    <form id="form-pups-for-location" name="location-selection">

      <label class="form-label" for="languageCode">Language Code</label>
      <input type="text" id="languageCode" name="languageCode" value="en-US" />

      <label class="form-label" for="regionCode">Region Code</label>
      <input type="text" id="regionCode" name="regionCode" value="US" />

      <label class="form-label" for="searchLocation-latitude">Search Location - Latitude</label>
      <input type="text" id="searchLocation-latitude" name="searchLocation-latitude" value="-23.482049" />

      <label class="form-label" for="searchLocation-longitude">Search Location - Longitude</label>
      <input type="text" id="searchLocation-longitude" name="searchLocation-longitude" value="-46.602135" />

      <label class="form-label" for="orderBy">Order By</label>
      <select id="orderBy" name="orderBy">
        <option value="DISTANCE_FROM_SEARCH_LOCATION" selected>DISTANCE_FROM_SEARCH_LOCATION</option>
        <option value="WALKING_ETA_FROM_SEARCH_LOCATION">WALKING_ETA_FROM_SEARCH_LOCATION</option>
        <option value="DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION">DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION</option>
      </select>

      <label class="form-label" for="destination-latitude">Destination - Latitude</label>
      <input type="text" id="destination-latitude" name="destination-latitude" value="" />

      <label class="form-label" for="destination-longitude">Destination - Longitude</label>
      <input type="text" id="destination-longitude" name="destination-longitude" value="" />

      <label class="form-label" for="maxResults">Max Results</label>
      <input type="number" id="maxResults" name="maxResults" min="1" value="5" step="1" />

      <fieldset>
        <legend>Travel Modes</legend>
        <div>
          <input type="checkbox" id="walking" name="travelModes" value="WALKING" checked>
          <label for="walking" class="form-checkbox-label">WALKING</label>
        </div>
        <div>
          <input type="checkbox" id="driving" name="travelModes" value="DRIVING" checked>
          <label for="driving" class="form-checkbox-label">DRIVING</label>
        </div>
        <div>
          <input type="checkbox" id="twoWheeler" name="travelModes" value="TWO_WHEELER">
          <label for="twoWheeler" class="form-checkbox-label">TWO_WHEELER</label>
        </div>
      </fieldset>

      <label class="form-label" for="computeWalkingEta">Compute Walking ETA</label>
      <select id="computeWalkingEta" name="computeWalkingEta" class="boolean">
        <option value="true">true</option>
        <option value="false" selected>false</option>
      </select>

      <label class="form-label" for="computeDrivingEta">Compute Driving ETA</label>
      <select id="computeDrivingEta" name="computeDrivingEta" class="boolean">
        <option value="true">true</option>
        <option value="false" selected>false</option>
      </select>

      <input class="submit-button" type="submit" value="Call" />
    </form>
  </section>
  <section>
    <div id="map" class="map"></div>
  </section>
</div>
<section class="output-container">
  <h2>Response</h2>
  <pre id="output"></pre>
</section>
</body>
</html>

        body {
    font-family: 'Google Sans';
}

.container {
    display: grid;
    grid-template-columns: 30% 1fr;
    grid-template-rows: 100%;
    grid-column-gap: 20px;
    grid-row-gap: 0px;
}

h1 {
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 20px;
    font-weight: bold;
}

h2 {
    font-size: 18px;
    font-weight: bold;
}

h1,
.form-container,
.output-container {
    margin-left: 20px;
}

.map,
.output-container {
    margin-right: 20px;
}

.form-container {
    border: 1px solid black;
    padding: 20px;
}

.map {
    border: 1px solid black;
    min-height: 800px;
}

.output-container {
    margin-top: 20px;
}

#output {
    border: 1px solid red;
    font-family: 'Google Sans';
    min-height: 150px;
}


label:not(.form-checkbox-label), legend {
    overflow-wrap: break-word;
    font-weight: bold;
}

input:not([type="checkbox"]), select, fieldset {
    font-family: 'Google Sans';
    width: 100%;
    padding: 5px 5px;
    margin: 0 0 20px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
}


input[type="submit"] {
    min-width: 150px;
    background-color: green; /* Blue */
    border: none;
    color: white;
    padding: 15px 15px;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 20px;
    width: 50%;
}

input[type="submit"]:hover {
    background-color: darkseagreen;
}

input[type="submit"]:active {
    background-color: darkseagreen;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
}

.info-label {
    font-weight: bold;
}

        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();

        <html lang="en">
<head>
  <meta charset="utf-8">
  <title>Location Selection Demo</title>
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet">
</head>
<body>
<h1>Location Selection Demo - FindNearbyPlaces</h1>
<div class="container">
  <section class="form-container">
    <form id="form-nearby-places" name="location-selection">
      <label class="form-label" for="languageCode">Language Code</label>
      <input type="text" id="languageCode" name="languageCode" value="en-US" />

      <label class="form-label" for="regionCode">Region Code</label>
      <input type="text" id="regionCode" name="regionCode" value="US" />

      <label class="form-label" for="searchLocation-latitude">Search Location - Latitude</label>
      <input type="text" id="searchLocation-latitude" name="searchLocation-latitude" value="37.365647" />

      <label class="form-label" for="searchLocation-longitude">Search Location - Longitude</label>
      <input type="text" id="searchLocation-longitude" name="searchLocation-longitude" value="-121.925356" />

      <label class="form-label" for="maxResults">Max Results</label>
      <input type="number" id="maxResults" name="maxResults" min="1" value="5" step="1" />
      <input class="submit-button" type="submit" value="Call" />
    </form>
  </section>
  <section>
    <div id="map" class="map"></div>
  </section>
</div>
<section class="output-container">
  <h2>Response</h2>
  <pre id="output"></pre>
</section>
</body>
</html>

        body {
    font-family: 'Google Sans';
}

.container {
    display: grid;
    grid-template-columns: 30% 1fr;
    grid-template-rows: 100%;
    grid-column-gap: 20px;
    grid-row-gap: 0px;
}

h1 {
    font-size: 24px;
    margin-top: 20px;
    margin-bottom: 20px;
    font-weight: bold;
}

h2 {
    font-size: 18px;
    font-weight: bold;
}

h1,
.form-container,
.output-container {
    margin-left: 20px;
}

.map,
.output-container {
    margin-right: 20px;
}

.form-container {
    border: 1px solid black;
    padding: 20px;
}

.map {
    border: 1px solid black;
    min-height: 800px;
}

.output-container {
    margin-top: 20px;
}

#output {
    border: 1px solid red;
    font-family: 'Google Sans';
    min-height: 150px;
}


label:not(.form-checkbox-label), legend {
    overflow-wrap: break-word;
    font-weight: bold;
}

input:not([type="checkbox"]), select, fieldset {
    font-family: 'Google Sans';
    width: 100%;
    padding: 5px 5px;
    margin: 0 0 20px 0;
    display: inline-block;
    border: 1px solid #ccc;
    border-radius: 8px;
    box-sizing: border-box;
}


input[type="submit"] {
    min-width: 150px;
    background-color: green; /* Blue */
    border: none;
    color: white;
    padding: 15px 15px;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    border-radius: 20px;
    width: 50%;
}

input[type="submit"]:hover {
    background-color: darkseagreen;
}

input[type="submit"]:active {
    background-color: darkseagreen;
    box-shadow: 0 5px #666;
    transform: translateY(4px);
}

.info-label {
    font-weight: bold;
}

        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();

使用 Location Selection API 搜尋乘車地點前，請按照整合用戶端程式庫的說明操作。

「地點選擇」服務提供三個 API，可供選擇取貨和還貨地點：FindNearbyPlaces、FindPickupPointsForPlace 和 FindPickupPointsForLocation。

使用 FindNearbyPlaces 擷取搜尋或裝置位置附近的商家。系統會根據地點與所在位置的距離，以及地點在共乘服務中的顯眼程度進行排名。FindNearbyPlaces 會傳回可供顯示的地點清單，讓使用者做出最佳選擇。選取地點後，請使用 FindPickupPointsForPlace 擷取所選地點的取貨點。

使用 FindPickupPointsForLocation 在同一個 RPC 呼叫中，擷取搜尋或裝置位置附近的取貨地點和相關取貨點。每個取貨地點都會與一個地點建立關聯。系統會根據上車地點與所在位置的距離，以及上車地點在共乘服務中的顯眼程度，為上車地點排序。請注意，多個地點的取貨地點會一起排序。FindPickupPointsForLocation 會合併 FindNearbyPlaces 和 FindPickupPointsForPlace。舉例來說，假設要求位置靠近地點 P1、P2 和 P3。如果最佳取貨點 T1 與地點 P2 相關聯，而次佳取貨點與地點 P1 相關聯，則結果的排序會是 [T1:P2、T2:P1...]。

取貨地點的排名取決於要求中提供的條件。詳情請參閱「為多趟行程最佳化取貨作業」。

依地點進行搜尋

如要先向使用者顯示地點，再選取取貨點，或拖曳圖釘來顯示附近地點，請使用下列 RPC 呼叫：

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);

RPC 呼叫會傳回符合輸入條件的地點回應排名清單，並依鄰近程度和顯著程度的組合排序。你可以讓乘客選擇地點，或使用第一個結果並繼續選取上車地點。每個地點回應都有專屬的 place_id，可用於 FindPickupPointsForPlaceRequest 擷取取貨地點。詳情請參閱「依地點 ID 搜尋」。

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);

RPC 呼叫會傳回符合輸入條件的取貨點排名清單，並依據鄰近程度和顯眼程度的組合排序。這個 RPC 呼叫會合併 FindNearbyPlaces 和 FindPickupPointsForPlaceRequest，可用來取代合併其他兩個呼叫。

依地點 ID 搜尋

您可以使用 FindNearbyPlaces 取得 place_id，也可以使用 Places API Autocomplete 服務。接著使用下列 RPC 呼叫，為指定地點提供最佳取貨點：

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 會傳回 PickupPointResponses，其中包含可供乘客上車地點的經緯度。

為多趟行程最佳化上車地點

如果是共乘或連續行程，FindPickupPointsForPlace 支援依 DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION 排序上車地點。這項功能可讓您根據司機目前的行程路線，傳回下趟行程的最佳上車地點。

範例

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)
        // Second rider's location or location of dragged pin.
        .setSearchLocation(LatLng.newBuilder().setLatitude(37.329472).setLongitude(-121.890449))
        // Location of the driver's next drop off after picking up the second
        // rider. Note, it is not necessarily the second rider's destination.
        .setDestination(LatLng.newBuilder().setLatitude(37.329472).setLongitude(-121.890449))
        .setOrderBy(PickupPointOrder.DRIVING_ETA_FROM_PICKUP_POINT_TO_DESTINATION)
        .setComputeDrivingEta(true)
        .setMaxResults(5)
        .build();

FindPickupPointsForPlaceResponse findPickupPointsForPlaceResponse =
    locationSelectionBetaClient.findPickupPointsForPlace(findPickupPointsForPlaceRequest);

顯示建築物輪廓、入口和出口

在地點原型回應訊息中，associatedCompounds 欄位會識別與地點相關聯的化合物。複合訊息包含三種資訊：

複合型別 - 四個選項之一
- compoundBuilding - 單一獨立建築，例如購物中心或超市。
- compoundSection：較大複合體內的複合體，例如購物中心內的單一商店。
- compoundGrounds - 與 compoundBuilding 相關的所有項目，例如購物中心、停車場，以及停車場內的任何其他建築物。
- unrecognized - 預設值
幾何圖形 - 輪廓多邊形的座標，儲存在 displayBoundary 欄位的 GeoJSON 結構中。這些座標可用於建構區段、建築物或場地的輪廓。
出入口 - 所有出入口的經緯度座標。

「位置選取」會傳回與搜尋位置相關聯的任何複合類型。如果搜尋位置是購物中心內的特定商店，「位置選取」會傳回： * 特定商店、出入口和商店輪廓 * 複合式建築物 (購物中心)、出入口和購物中心輪廓 * 複合式場地 (購物中心 + 停車場)、出入口和整個場地的輪廓

這張圖片顯示傳回的所有三種複合型別。

這張圖片顯示機場內的幾個地點，以及機場內建築物和機場及其所有相關場地的邊界。