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[英]Plot a map path / waypoints using the Google Maps API and play the route
[英]Google Maps API (JS) Create a route using PlaceId in waypoints
路由只有在我使用LatLng或String參數時才會創建,但我需要通過PlaceId創建它,但它不起作用
例:
directionsService.route({
origin: {'placeId': 'ChIJc1lGdwfP20YR3lGOMZD-GTM'},
destination: {'placeId': 'ChIJdTGhqsbP20YR6DZ2QMPnJk0'},
waypoints: [{stopover: true, location: new google.maps.Place('ChIJRVj1dgPP20YRBWB4A_sUx_Q')}],
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING
}
只需要將google.maps.Place
對象作為航點位置傳遞即可。 例如:
directionsService.route({
origin: { placeId: "ChIJc1lGdwfP20YR3lGOMZD-GTM" },
destination: { placeId: "ChIJdTGhqsbP20YR6DZ2QMPnJk0" },
waypoints: [{ stopover: true, location: { placeId: "ChIJRVj1dgPP20YRBWB4A_sUx_Q" } }],
optimizeWaypoints: true,
travelMode: google.maps.TravelMode.DRIVING
}
location指定航點的位置,LatLng,google.maps.Place對象或將進行地理編碼的String。
我發布的代碼出現javascript錯誤: Uncaught TypeError: google.maps.Place is not a constructor
此行Uncaught TypeError: google.maps.Place is not a constructor
:
waypoints: [{stopover: true, location: new google.maps.Place('ChIJRVj1dgPP20YRBWB4A_sUx_Q')}],
您需要以與origin
和destination
placeIds相同的方式指定該location
:
waypoints: [{
stopover: true,
location: {'placeId':"ChIJRVj1dgPP20YRBWB4A_sUx_Q"}
}],
Google.maps.Place對象規范
placeId | 類型:字符串地點的地點ID(例如商家或興趣點)。 地點ID是Google地圖數據庫中地點的唯一標識符。 請注意,placeId是識別地點的最准確方式。 如果可能,您應該指定placeId而不是placeQuery。 可以從Places API的任何請求中檢索地點ID,例如TextSearch。 也可以從對Geocoding API的請求中檢索地點ID。 有關更多信息,請參閱地點ID概述 。
代碼段:
function initialize() { var map = new google.maps.Map(document.getElementById("map_canvas")); var directionsService = new google.maps.DirectionsService(); var directionsDisplay = new google.maps.DirectionsRenderer({ map: map }); directionsService.route({ origin: { 'placeId': 'ChIJc1lGdwfP20YR3lGOMZD-GTM' }, destination: { 'placeId': 'ChIJdTGhqsbP20YR6DZ2QMPnJk0' }, waypoints: [{ stopover: true, location: { 'placeId': "ChIJRVj1dgPP20YRBWB4A_sUx_Q" } }], optimizeWaypoints: true, travelMode: google.maps.TravelMode.DRIVING }, function(response, status) { if (status === 'OK') { directionsDisplay.setDirections(response); } else { window.alert('Directions request failed due to ' + status); } }); } google.maps.event.addDomListener(window, "load", initialize);
html, body, #map_canvas { height: 100%; width: 100%; margin: 0px; padding: 0px }
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script> <div id="map_canvas"></div>
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