Chr*_* K. 17 php ajax jquery json google-maps
1)我有一个网站,使用jQuery和gMap谷歌地图插件.这一切都很完美,我的标记设置正确,我真的很喜欢这个解决方案.这是它的样子:
<script type="text/javascript" src="http://www.google.com/jsapi?key=MyGmapKey"></script>
<script type="text/javascript">
google.load("jquery", '1.3');
google.load("maps");
</script>
<script type="text/javascript" src="/code/js/jquery.gmap-1.1.0-min.js"></script>
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
$("#map1").gMap(
{
latitude: 48.7,
longitude: 13.4667,
zoom: 9,
markers: [{latitude: 48.461117, longitude: 13.418795, html: "MY Info Box 1"},
{latitude: 48.531602, longitude: 12.942087, html: "Another Info Box"},
{latitude: 48.198242, longitude: 13.536017, html: "Guess what? This is INFO Text!"},
{latitude: 48.325327094, longitude: 14.0712547302, html: "INFO"},
{latitude: 48.7, longitude: 13.4667,icon: { image: "images/My_Position.png", iconsize: [20, 34], iconanchor: [5, 34], infowindowanchor: [5, 2], infoshadowanchor: [14, 25] }, html: "Your current position: 48.7 | 13.4667, Germany"}],
controls: ["GSmallZoomControl3D", "GMapTypeControl"],
scrollwheel: true,
maptype: G_HYBRID_MAP,
html_prepend: '<div class="gmap_marker">',
html_append: '</div>',
icon:
{
image: "images/gmap_pin.png",
shadow: false,
iconsize: [19, 21],
shadowsize: false,
iconanchor: [4, 19],
infowindowanchor: [8, 2]
}
});
//Trailing "}" missing here...
</script>
<style type="text/css" media="screen">
#map1{ float:left; width:500px; height:500px; overflow:hidden; margin: 20px; }
.gmap_marker { font-family:Geneva, Arial, Helvetica, sans-serif; color:#0000CC; }
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<div id="map1"></div>
</body>
</html>
现在我的问题:
我添加了一个"onmoveend"函数,它将从外部文件中获取新的"标记"数据.一切都很好,只是标记显示不正确,只显示最后一项.我敢打赌这只是一件小事,但我现在迷路了......
这是我做的:
2)我添加了这个脚本:
if (GBrowserIsCompatible())
{
var map = $gmap;
var center = new GLatLng(<?=$_GET['lat']?>,<?=$_GET['lon']?>);
GEvent.addListener(map, "moveend", function()
{
map.clearOverlays();
var center = map.getCenter();
var marker = new GMarker(center, {draggable: true});
map.addOverlay(marker);
var lat = center.lat();
var lng = center.lng();
document.getElementById("lat").value = lat;
document.getElementById("lng").value = lng;
GEvent.addListener(marker, "dragend", function()
{
var point=marker.getPoint();
map.panTo(point);
var lat = point.lat();
var lng = point.lng();
document.getElementById("lat").value = lat;
document.getElementById("lng").value = lng;
});
$.getJSON('loader.php', { lat: lat, lng: lng, rad: <?=$rad?>} , function(data) {
$("#map").gMap(
{
latitude: lat,
longitude: lng,
zoom: 9,
markers: [data],
controls: ["GSmallZoomControl3D", "GMapTypeControl"], //"GScaleControl",
scrollwheel: true,
maptype: G_HYBRID_MAP,
html_prepend: '<div class="gmap_marker">',
html_append: '</div>',
icon:
{
image: "images/gmap_pin.png",
shadow: false,
iconsize: [19, 21],
shadowsize: false,
iconanchor: [4, 19],
infowindowanchor: [8, 2]
}
});
});
});
还有一些HTML:
<div id="map" style="float:left; width:500px; height:500px; overflow:hidden; margin: 20px;"></div>
Current coordinates: <br>
<b>Latitude:</b> <input type="text" size="34" name="latitude" value="" id="lat" /><br>
<b>Longitude:</b><input type="text" size="34" name="longitude" value="" id="lng" />
如果你移动第一张地图,我会显示第二张地图,"应该"按住该地图返回的新标记loader.php.
loader.php:
它从数据库中获取新的"接近我"条目,然后"构建"类似于样本1中使用的字符串.
这是它的样子:
$MyNewPositionMarker.='{latitude: '. $_GET['lat'].', longitude: '. $_GET['lng'].', html: "'.$html.'"},' ;
//Getting database results while
while($row = mysql_fetch_assoc($result))
{
$markers.='{latitude: '.$row['odin_facility_lat'].', longitude: '.$row['odin_facility_lon'].', html: "'.$html.'"},' ;
}
echo $markers.$MyNewPositionMarker
由loader.php"样本1"按照"查看"它们应该看起来的样子返回的值.
我想,我的问题是$.getJSON与某种"编码/解码"问题有关,但我花了一整夜,来回尝试("正常$ .get"),不同的返回格式loader.php,但都没有成功.
现在,它看起来还不错,但不幸的是我只是在地图上设置了最后一个标记.可以在此处找到jQuery插件,即"设置"标记:http://gmap.nurtext.de/js/jquery.gmap-1.1.0.js
(我转过圈子,希望你们能澄清一下......)
这只是Loader.php中的一个小东西：
echo "[".$markers.$MyNewPositionMarker."]";
//and removed the [] at the position when loading the new map: WRONG... markers: [data], ... RIGHT: ... markers: data, ...
（这只是评论中解决方案的复制粘贴，以从“未回答”列表中删除问题。）
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