Maps API& MarkerClusterer [英] Maps API & MarkerClusterer
问题描述
我试图让markerclusterer处理一些我从SQL数据库中取出的数据。目前它显示的是地图，但不是针脚。如果我 console.log 标记var，我最终会得到一大堆由VI为索引的索引组成的对象的行。
I'm trying to get markerclusterer to work with some data I've taken out of an SQL database. It's currently showing the map but not the pins. If I console.log the markers var, I end up with a whole bunch of lines of an object organized by indices with VI as the value.
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map-canvas { height: 100% }
</style>
<script src="jqueryui/js/jquery-1.9.0.js" type="text/javascript"></script>
<script type="text/javascript"
src="http://maps.google.com/maps/api/js?key=AIzaSyC3HDl1QHs4Gq_hEW-K60bentHuZlT5_8s&sensor=false">
</script>
<script type="text/javascript">
var script = '<script type="text/javascript" src="markerclusterer';
if (document.location.search.indexOf('compiled') !== -1) {
script += '_compiled';
}
script += '.js"><' + '/script>';
document.write(script);
</script>
<script type="text/javascript">
var markers = [];
$.getJSON('getLatLon.php',{ajax:'false'},function(jsonData){
$(jsonData).each(function(){
var latLng = new google.maps.LatLng(this.lat,this.lon);
var marker = new google.maps.Marker({'position': latLng});
markers.push(marker);
});
});
function initialize() {
var mapOptions = {
center: new google.maps.LatLng(41.611143, -86.722719),
zoom: 4,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("map-canvas"),
mapOptions);
var markerCluster = new MarkerClusterer(map, markers);
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"/>
</body>
</html>
getLatLon会返回这个值，尽管行数更多。
getLatLon returns this, though with many more rows.
[
{
"zip": "H8R 3W4",
"lat": -73.65,
"lon": 45.43
},
{
"zip": "H8R 3W4",
"lat": -73.65,
"lon": 45.43
}
]
推荐答案
MarkerClusterer被加载到AJAX回调函数中之后，它们会被加入到MarkerClusterer中。
You need to put the markers into the MarkerClusterer after they have been loaded in the AJAX callback.
$.getJSON('getLatLon.php',{ajax:'false'},function(jsonData){
$(jsonData).each(function(){
var latLng = new google.maps.LatLng(this.lat,this.lon);
var marker = new google.maps.Marker({'position': latLng});
markers.push(marker);
});
var markerCluster = new MarkerClusterer(map, markers);
});
您可能需要他在全局（或者至少更大）范围内的markerClusterer，但是这应该在至少显示标记。
You may want he markerClusterer in the global (or at least a larger) scope, but this should at least show the markers.
这篇关于Maps API& MarkerClusterer的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
