Google maps 重新计算markercluster并下载URL
我正试图解决这个问题,但没有成功 如您所见,当您取消选中VDSL或ADSL选项时,markercluster仍具有相同的值Google maps 重新计算markercluster并下载URL,google-maps,google-maps-api-3,filter,markerclusterer,Google Maps,Google Maps Api 3,Filter,Markerclusterer,我正试图解决这个问题,但没有成功 如您所见,当您取消选中VDSL或ADSL选项时,markercluster仍具有相同的值 downloadUrl("php_to_xml.php", function(data) { var xml = data.responseXML; var markers = xml.documentElement.getElementsByTagName("marker"); for (var i = 0; i <
downloadUrl("php_to_xml.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var ThisMarkers = markers[i];
var lat = markers[i].getAttribute("lat");
var lng = markers[i].getAttribute("lng");
var typeofkafao = markers[i].getAttribute("typeofkafao");
var type = markers[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var icon = coloredRideshareIcon(typeofkafao);
//below is the balloon of the marker.
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon
});
addMarker(typeofkafao, marker, map, infoWindow, ThisMarkers);
}
var mcOptions = {gridSize: 40, maxZoom: 15};
var markerCluster = new MarkerClusterer(map,gmarkers,mcOptions); // edo trexi
});
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);
}
downloadUrl(“php_to_xml.php”),函数(数据){
var xml=data.responseXML;
var markers=xml.documentElement.getElementsByTagName(“标记”);
对于(var i=0;i
我知道问题出在downloadUrl函数上,因为它是异步的。
我必须在downloadUrl之外调用markerCluster,但我不能,因为我不能在downloadUrl函数之外发送markers变量
我认为问题是这样解决的,但不是完全那样
var markers2;
downloadUrl("php_to_xml.php", function(data) {
var xml = data.responseXML;
var markers = xml.documentElement.getElementsByTagName("marker");
markers2 = markers;
});
for (var i = 0; i < markers2.length; i++) {
var ThisMarkers = markers2[i];
var lat = markers2[i].getAttribute("lat");
var lng = markers2[i].getAttribute("lng");
var typeofkafao = markers2[i].getAttribute("typeofkafao");
var type = markers2[i].getAttribute("type");
var point = new google.maps.LatLng(
parseFloat(markers2[i].getAttribute("lat")),
parseFloat(markers2[i].getAttribute("lng")));
var icon = coloredRideshareIcon(typeofkafao);
//below is the balloon of the marker.
var marker = new google.maps.Marker({
map: map,
position: point,
icon: icon
});
addMarker(typeofkafao, marker, map, infoWindow, ThisMarkers);
}
var mcOptions = {gridSize: 40, maxZoom: 15};
var markerCluster = new MarkerClusterer(map,gmarkers,mcOptions); // edo trexi
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);
}
var标记2;
下载URL(“php_to_xml.php”),函数(数据){
var xml=data.responseXML;
var markers=xml.documentElement.getElementsByTagName(“标记”);
标记2=标记;
});
对于(变量i=0;i
有什么想法吗,伙计们
非常感谢查看一下控制台会很有用: 引用错误:未定义markerCluster
markerCluster
-变量在Markers()中不可访问
删除var
-关键字:
var markerCluster = new MarkerClusterer(map,gmarkers,mcOptions);
var markerCluster=新的MarkerClusterer(映射、gmarkers、mcOptions);我在这里看到了这篇文章,但它没有使用下载URL