-2
我有一組標記，點擊標記時有一個按鈕可以獲取路線。問題是，它只給出了從xml最後加載的標記的方向，而不是單個標記。這是我的代碼，也許有人可以告訴我做錯了什麼。謝謝。Google指示錯誤的標記
UPDATE：WORKING CODE，QUESTION ANSWERED
var map;
var point;
var directionsDisplay;
var directionsService;
var marker;
var myLatLng;
var marklat;
var marklong;
var markers;
var DirLat;
var DirLng;
function loadGoogleMap(){
// load google map
var script = document.createElement('script');
script.type = 'text/javascript';
script.src = 'https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&' +
'callback=MyMap';
document.body.appendChild(script);
}
var map = ''
function MyMap(){
directionsDisplay = new google.maps.DirectionsRenderer();
directionsService = new google.maps.DirectionsService();
var im = //user location icon
var CustomMarker = //marker icon location
if(navigator.geolocation){
navigator.geolocation.getCurrentPosition(locate, noPos());
} else {
noPos();
}
function locate(position){
myLatLng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);
var mapOptions = {
zoom: 12,
center: myLatLng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
zoomControl: false,
streetViewControl: false,
mapTypeControl: false,
panControlOptions: { position: google.maps.ControlPosition.TOP_RIGHT},
zoomControlOptions: { position: google.maps.ControlPosition.TOP_RIGHT }
}
map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var userMarker = new google.maps.Marker({
position: myLatLng,
map: map,
icon: im
});
var infoWindow = new google.maps.InfoWindow;
downloadUrl("phps/xmltest.php", function(data) {
var xml = data.responseXML;
markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var nam = markers[i].getAttribute("name");
var name = nam.replace('=', '\'');
var address = markers[i].getAttribute("address");
var dt1 = markers[i].getAttribute("date1");
var dt2 = markers[i].getAttribute("date2");
var dt3 = markers[i].getAttribute("date3");
var tm1 = markers[i].getAttribute("time1");
var tm2 = markers[i].getAttribute("time2");
var tm3 = markers[i].getAttribute("time3");
var pid = markers[i].getAttribute("PID");
var DirLat = markers[i].getAttribute("lat");
var DirLng = markers[i].getAttribute("lng");
var d = Math.round(Math.random()*1679735965724*236896135089834);
var raw = pid * d;
//move up the creation of point
point = new google.maps.LatLng(
DirLat,
DirLng);
marker = new google.maps.Marker({
map: map,
position: point,
icon: CustomMarker,
id: raw,
id2: d
});
var content = "<button onclick='getDir();'>Get Directions</button>";
var jshtml = "<button onclick='raw();'>More Info</button>"; //an href function that redirects
var html = "<b>" + name + " " + content+ ' ' + jshtml+ "</b> <br/>" + "Date of Yard Sale: " + dt1 + ' ' + tm1 + ' ' + dt2 + ' ' + tm2 + ' ' + dt3 + ' ' + tm3;
bindInfoWindow(marker, map, infoWindow, html);
}
});
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker, html);
center: position;
document.getElementById('iLat').value = marker.getPosition().lat().toFixed(6);
document.getElementById('iLng').value = marker.getPosition().lng().toFixed(6);
document.getElementById('iRaw1').value = marker.id;
document.getElementById('iRaw2').value = marker.id2;
});
}
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();
}
function doNothing() {}
}
function noPos(error){
var mapOptions = {
zoom: 4,
center: new google.maps.LatLng(41.850033, -87.6500523),
mapTypeId: google.maps.MapTypeId.ROADMAP,
zoomControl: true,
streetViewControl: false,
mapTypeControl: false,
panControlOptions: { position: google.maps.ControlPosition.TOP_RIGHT},
zoomControlOptions: { position: google.maps.ControlPosition.TOP_RIGHT }
}
var map = new google.maps.Map(document.getElementById('map-canvas'),
mapOptions);
var infoWindow = new google.maps.InfoWindow;
// Change this depending on the name of your PHP file
downloadUrl("phps/xmltest.php", function(data) {
var xml = data.responseXML;
markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var nam = markers[i].getAttribute("name");
var name = nam.replace('=', '\'');
var address = markers[i].getAttribute("address");
var dt1 = markers[i].getAttribute("date1");
var dt2 = markers[i].getAttribute("date2");
var dt3 = markers[i].getAttribute("date3");
var tm1 = markers[i].getAttribute("time1");
var tm2 = markers[i].getAttribute("time2");
var tm3 = markers[i].getAttribute("time3");
var pid = markers[i].getAttribute("PID");
var d = Math.round(Math.random()*1679735965724*236896135089834);
var raw = pid * d;
var jshtml = "<button onclick='raw();'>More Info</button>";;
var html = "<b>" + name + ' ' + jshtml + "</b>" + "<br>" + "Date of Yard Sale: " + dt1 + ' ' + tm1 + ' ' + dt2 + ' ' + tm2 + ' ' + dt3 + ' ' + tm3;
point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
marker = new google.maps.Marker({
map: map,
position: point,
icon: CustomMarker,
id: raw,
id2: d
});
bindInfoWindow(marker, map, infoWindow, html);
}
});
function bindInfoWindow(marker, map, infoWindow, html) {
google.maps.event.addListener(marker, 'click', function() {
infoWindow.setContent(html);
infoWindow.open(map, marker, html);
position = marker.position;
center: position;
document.getElementById('iRaw1').value = marker.id;
document.getElementById('iRaw2').value = marker.id2;
});
}
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() {}
}
}
function getDir(){
directionsDisplay.setMap(map);
var start = myLatLng;
//LatLng created based on the passed arguments
var end = point;
var request = {
origin:start,
destination:end,
travelMode: google.maps.TravelMode.DRIVING
};
directionsService.route(request, function(result, status) {
if (status == google.maps.DirectionsStatus.OK) {
directionsDisplay.setDirections(result);
}
});
}
您的getDir（）函數如何知道哪個標記被點擊？只有一個「點」值留在最後一個標記的值處。 – geocodezip
我相信那是我遇到麻煩的地方;我不確定如何指定正在點擊哪個標記。如果可能，我想要一些幫助。 – Alex
[Mike Williams'v2教程的例子之一，翻譯成v3]（http://www.geocodezip.com/v3_MW_example_map4c.html）可能會有所幫助。 – geocodezip