我很难搞清楚如何在地图上显示两组不同的标记。我有两个不同的数据库，每个数据库都有一个表，我需要从中提取数据才能显示。对于一个表格，格式为id，street，city，state，zip_code，type和lat / lng，如下所示。我可以很好地显示这个属性列表，但是当我尝试从第二个表中添加一个不同的集时，它不起作用。我已粘贴了我的初始代码，该代码适用于下表：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<title>propertylocations</title>
<script src="http://maps.google.com/maps?file=api&v=2&key=mykey"
type="text/javascript"></script>
<script type="text/javascript">
var iconFlag = new GIcon();
iconFlag.image = 'images/redflag.png';
iconFlag.iconSize = new GSize(12, 20);
iconFlag.iconAnchor = new GPoint(6, 20);
iconFlag.infoWindowAnchor = new GPoint(5, 1);
var iconBlue = new GIcon();
iconBlue.image = 'images/glossy-ball.png';
iconBlue.iconSize = new GSize(12, 20);
iconBlue.iconAnchor = new GPoint(6, 20);
iconBlue.infoWindowAnchor = new GPoint(5, 1);
var iconRed = new GIcon();
iconRed.image = 'images/redbutton.png';
iconRed.iconSize = new GSize(12, 20);
iconRed.iconAnchor = new GPoint(6, 20);
iconRed.infoWindowAnchor = new GPoint(5, 1);
var customIcons = [];
customIcons["rental"] = iconFlag;
customIcons["commercial"] = iconBlue;
customIcons["residential"] = iconRed;
function load() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map"));
map.addControl(new GSmallMapControl());
map.addControl(new GMapTypeControl());
map.setCenter(new GLatLng(33.000000, -78.000000), 11);
// Change this depending on the name of your PHP file
GDownloadUrl("markers4.php", function(data) {
var xml = GXml.parse(data);
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var id = markers[i].getAttribute("id");
var street = markers[i].getAttribute("street");
var city = markers[i].getAttribute("city");
var state = markers[i].getAttribute("state");
var zip_code = markers[i].getAttribute("zip_code");
var type = markers[i].getAttribute("type");
var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var marker = createMarker(point, id, street, city, state, zip_code, type);
map.addOverlay(marker);
}
});
}
}
function createMarker(point, id, street, city, state, zip_code, type) {
var marker = new GMarker(point, customIcons[type]);
var html = "<b>" + id + "</b> <br/>" + street + "<br/>" + city + "<br/>" + state + "<br/>" + zip_code +"<br/>" + type;
GEvent.addListener(marker, 'click', function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
//]]>
</script>
</head>
<body background="images/bg2.jpg">
<body onload="load()" onunload="GUnload()">
<center><div id="map" style="width: 800px; height: 600px"></div></center>
</body>
</html>
我试图执行以下操作，它显示了第二个表中的数据，但它将图标更改为默认图标并将html标注框格式化为相同 - 因此显示正确，并显示其他表格中的所有图标作为“未定义。”
这里的所有内容都与上面的相同，只是我添加了第二个GdownloadURL并创建了标记功能（所以我省略了上面可以看到的顶部）。
function load() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map"));
map.addControl(new GSmallMapControl());
map.addControl(new GMapTypeControl());
map.setCenter(new GLatLng(33.000000, -78.000000), 8);
// Change this depending on the name of your PHP file
GDownloadUrl("markers4.php", function(data) {
var xml = GXml.parse(data);
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var id = markers[i].getAttribute("id");
var street = markers[i].getAttribute("street");
var city = markers[i].getAttribute("city");
var state = markers[i].getAttribute("state");
var zip_code = markers[i].getAttribute("zip_code");
var type = markers[i].getAttribute("type");
var point = new GLatLng(parseFloat(markers[i].getAttribute("lat")),
parseFloat(markers[i].getAttribute("lng")));
var marker = createMarker(point, id, street, city, state, zip_code, type);
map.addOverlay(marker);
}
});
GDownloadUrl("markers6.php", function(data) {
var xml = GXml.parse(data);
var markers = xml.documentElement.getElementsByTagName("marker");
for (var i = 0; i < markers.length; i++) {
var realtor_phone = markers[i].getAttribute("realtor_phone");
var availability_date = markers[i].getAttribute("availability_date");
var type = markers[i].getAttribute("type");
var point = new GLatLng(parseFloat(markers[i].getAttribute("latitude")),
parseFloat(markers[i].getAttribute("longitude")));
var marker = createMarker(point, realtor_phone, availability_date, type);
map.addOverlay(marker);
}
});
}
}
function createMarker(point, id, street, city, state, zip_code, type) {
var marker = new GMarker(point, customIcons[type]);
var html = "<b>" + id + "</b> <br/>" + street + "<br/>" + city + "<br/>" + state + "<br/>" + zip_code +"<br/>" + type;
GEvent.addListener(marker, 'click', function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
function createMarker(point, realtor_phone, availability_date, type) {
var marker = new GMarker(point, customIcons[type]);
var html = "<b>" + realtor_phone + "</b><br/>" + availability_date;
GEvent.addListener(marker, 'click', function() {
marker.openInfoWindowHtml(html);
});
return marker;
}
//]]>
</script>
</head>
<body background="images/bg2.jpg">
<body onload="load()" onunload="GUnload()">
<center><div id="map" style="width: 800px; height: 600px"></div></center>
</body>
</html>
我可以通过移动第一个“返回标记”下方的花括号来改变我看到的图标html格式，并将其放在第二个“返回标记”之后作为双精度，但无论哪种方式我都有格式问题。如果有人有一些想法，我会非常感激他们。我被卡住了，有几种不同的数据类型，我需要加载并显示在我的地图上。谢谢。