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我正在開發一個Web項目，該項目提供從設置地址（在jscode中設置座標）到用戶使用文本搜索框設置的地址（在另一個div）。我已設法設置搜索框將地址提供給地圖上的標記，但我無法獲取從「家」到標記的指示。Google Maps JavaScript API，用於在地圖上顯示路線的搜索框
你能幫助新手嗎？ 謝謝:)
var geocoder;
var map;
function initMap() {
\t var directionsService = new google.maps.DirectionsService;
\t var directionsDisplay = new google.maps.DirectionsRenderer;
\t directionsDisplay.setMap(map);
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(60.124639, 19.948736);
var mapOptions = {
zoom: 14,
center: latlng
}
map = new google.maps.Map(document.getElementById('map'), mapOptions);
var input = /** @type {HTMLInputElement} */(
document.getElementById('address'));
var types = document.getElementById('type-selector');
map.controls[google.maps.ControlPosition.TOP_LEFT].push(types);
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.bindTo('bounds', map);
var infowindow = new google.maps.InfoWindow();
var marker = new google.maps.Marker({
map: map
});
google.maps.event.addListener(autocomplete, 'place_changed', function() {
infowindow.close();
marker.setVisible(false);
var place = autocomplete.getPlace();
if (!place.geometry) {
return;
}
// If the place has a geometry, then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(15);
}
marker.setIcon(/** @type {google.maps.Icon} */({
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(35, 35)
}));
marker.setPosition(place.geometry.location);
marker.setVisible(true);
var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),
(place.address_components[1] && place.address_components[1].short_name || ''),
(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}
infowindow.setContent('<div><strong>' + place.name + '</strong><br>' + address);
infowindow.open(map, marker);
});
// Sets a listener on a radio button to change the filter type on Places
// Autocomplete.
function setupClickListener(id, types) {
var radioButton = document.getElementById(id);
google.maps.event.addDomListener(radioButton, 'click', function() {
autocomplete.setTypes(types);
});
}
setupClickListener('changetype-all', []);
setupClickListener('changetype-establishment', ['establishment']);
setupClickListener('changetype-geocode', ['geocode']);
}
function codeAddress() {
var address = document.getElementById('address').value;
geocoder.geocode({ 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
map.setCenter(results[0].geometry.location);
map.setZoom(10);
calculateAndDisplayRoute(directionsService, directionsDisplay);
} else {
alert('Geocode was not successful for the following reason: ' + status);
}
});
}
google.maps.event.addDomListener(window, 'load', initMap);
//<![CDATA[
var pinColor1 = "FE7569";
var pinColor2 = "0000FF";
function load() {
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phpsqlajax_genxml.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var name = markers[i].getAttribute("name");
var address = markers[i].getAttribute("address");
var type = markers[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var html = "<b>" + name + "</b> <br/>" + address;
var icon = customIcons[type] || {};
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
}
function calculateAndDisplayRoute(directionsService, directionsDisplay) {
directionsService.route({
origin: latlng,
destination: geocoder.geocode,
travelMode: google.maps.TravelMode.DRIVING
}, function(response, status) {
if (status === google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(response);
} else {
window.alert('Directions request failed due to ' + status);
}
});
}
map.mapTypes.set('map_style', custom_style);
map.setMapTypeId('map_style');
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker);
});
}
function downloadUrl(url, callback) {
var request = window.ActiveXObject ?
new ActiveXObject('Microsoft.XMLHTTP') :
new XMLHttpRequest;
request.onreadystatechange = function() {
if (request.readyState == 4) {
request.onreadystatechange = doNothing;
callback(request, request.status);
}
};
request.open('GET', url, true);
request.send(null);
}
function doNothing() {}
//]]>
google.maps.event.addDomListener(window, 'load', load);html, body, .mapcontainer, #map {
width: 100%;
height: 100%;
}<div>
<input type="text" class="input-field" placeholder="SÖK ADRESS" id="address" onchange="calcRoute();"/>
</div>
<div class="mapcontainer col s12 m6 l6">
<div class="col s6" id="map"></div>
</div>
<script src="https://maps.googleapis.com/maps/api/js?libraries=places&callback=initMap" async defer></script>