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我正在使用谷歌地圖插件,我希望它在頁面加載以及所有回傳中顯示。它似乎只適用於回發。有任何想法嗎?我將body的onload標籤設置爲「body background =」#ccccff「onload =」initialize()「」,但該函數並沒有在第一次定義。爲什麼?下面是代碼:Javascript函數在回發頁面上工作,但不能頁面加載
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"> </script>
<script type="text/javascript">
var mostRecentInfo;
function initialize() {
var center = new google.maps.LatLng(0, 0);
var mapOptions = {
center: center,
zoom:1,
mapTypeId: google.maps.MapTypeId.SATELLITE
};
var map = new google.maps.Map(document.getElementById("map"), mapOptions);
var posStr = <%=JSON%>;
if (posStr.toString() != "0") {
var test = posStr.toString().split(',');
var groundstation = <%=groundStation%>;
var dateTimeStr = <%=datetimesStr%>;
var AUStr = <%=auStr%>;
var spaceCraft = <%=spacecraft%>;
var dateTimes = dateTimeStr.toString().split(',');
var auIDs = AUStr.toString().split(',');
var latitude = new Array((test.length/2));
var longitude = new Array(latitude.length);
var i = 0;
var markerArray = new Array();
for (var j = 0; j < (test.length - 1); j = j + 2) {
latitude[i] = eval(test[j+1]);
longitude[i] = eval(test[j]);
var position = new google.maps.LatLng(latitude[i], longitude[i]);
var marker = new google.maps.Marker({
map:map,
position:position
});
markerArray.push(marker);
i++;
}
var sumLat = 0;
var sumLong = 0;
for (i = 0; i < latitude.length; i++) {
sumLat += latitude[i];
sumLong += longitude[i];
}
var avgLat = sumLat/latitude.length;
var avgLong = sumLong/longitude.length;
center = new google.maps.LatLng(avgLat, avgLong);
map.panTo(center);
var circle;
var contentStr = new Array();
for (i = 0; i < markerArray.length; i++) {
position = markerArray[i].getPosition();
var circOptions = {
strokeColor:"#770000",
strokeOpacity:0.1,
fillColor:"#881111",
fillOpacity:0.4,
map:map,
center:position,
radius:2500000
};
circle = new google.maps.Circle(circOptions);
marker = markerArray[i];
contentStr[i] = '<div id="content">' +
'<b>Spacecraft: </b>' + spaceCraft.toString() + '<br />' +
'<b>Start Time (UTC): </b>' + dateTimes[i].toString() + '<br />' +
'<b>Position: </b>(' + latitude[i].toString() + ', ' + longitude[i].toString() + ')<br />' +
'<b>AU ID: </b>' + auIDs[i] + '<br />' +
'<b>Downlink Station: </b>' + groundstation.toString() + '<br />' +
'</div>';
addListener(map, marker, contentStr[i]);
}
}
}
function addListener(map, marker, content) {
var infowindow = new google.maps.InfoWindow({
content:content
});
google.maps.event.addListener(marker, 'mouseover', function() {
if (mostRecentInfo)
mostRecentInfo.close();
mostRecentInfo = infowindow;
infowindow.open(map, this);
});
}
等
嘗試用調試器逐步執行代碼。轉到youtube.com並搜索「使用chrome調試javascript」。現在您可以逐行瀏覽您的代碼並查看它失敗的位置。 – mrtsherman 2011-06-01 21:45:48