这几天开始研究skyline第一实例就是,单机按钮然后,显示某个图层的数据,虽然实现了功能,但是对这种显示方式,不是很认可的,希望skyline可以改进,下面说一下实例 1.首先用TerraExplorer Pro工具,创建一个fly项目,然后添加一个shp图层,图层命名为“cun”,这里默认测试我没有创建分组,直接图层在根目录下
2.这一步是最关键的一步,就是右键图层属性,设置message属性,设置可以显示字段属性信息,这里如果不设置,显示,javascript是查询不到数据的,这里也是很别扭的地方,一上午没明白,问了群里一位朋友的提示,才了解里。先前如果这里不设置javascript查询的数据是0 3.发布fly文件 4.客户端代码如下,一个html文件 <html>
<head>
<title>HTML Example</title>
<script type=”text/javascript”>
function Init() {//初始化加载地图
try {
var flyPath = “d://new2.fly”;
// attach callback to the load finished event
var divobj = window.document.getElementById(“res”);
SGWorld66.AttachEvent(“OnLoadFinished”, OnProjectLoadFinished);
SGWorld66.Project.Open(flyPath);
}
catch (e) {
alert(“Error: ” + e.description);
} }
function GetFeatureAll() {
var strResult = “<table>”;
var SGWorld = SGWorld66;
var ItemID = SGWorld.ProjectTree.FindItem(“shijie”);
if (SGWorld.ProjectTree.IsLayer(ItemID)) // Layer
{ // var ItemID = SGWorld.ProjectTree.FindItem(“shijie”);
// var obj = SGWorld.ProjectTree.GetLayer(ItemID);
// 遍历当前图层中已经在地图上加载的全部对象及其属性
// var pIFeatureGroup = obj.FeatureGroups.Item(0);
var layer = SGWorld.ProjectTree.GetLayer(ItemID);
layer.Filter = ” 1=1″;
var featureGroups = layer.FeatureGroups;
for (var i = 0; i < featureGroups.Count; i++) // Traverse all sub-layers
{
var featureGroup = featureGroups.Item(i);
// var altitudeType = AltitudeMethodToAltitudeType(featureGroup.GetProperty(“Altitude Method”));
var features = featureGroup.Features;
for (var j = 0; j < features.Count; j++) {
var f1 = features.Item(j);
// var pIFeatureAttribute = f1.FeatureAttributes.GetFeatureAttribute(“RNAME”);
for (var n = 0; n < f1.FeatureAttributes.Count; n++)
{
var pIFeatureAttribute = f1.FeatureAttributes.Item(n);
strResult = strResult + “<td>” + pIFeatureAttribute.Name + “*” + pIFeatureAttribute.Value + “</td>”;
} }
}
} else {
}
strResult = strResult + “</table>”;
window.document.getElementById(“result”).innerHTML = strResult;
}
function OnProjectLoadFinished() {
alert(“Received project loaded event. Click OK to fly to Washington DC.”);
var Washington = SGWorld66.Creator.CreatePosition(-77.036667, 38.895111, 1500);
SGWorld66.Navigate.FlyTo(Washington);
}
</script>
</head>
<body onload=”Init()”>
<input id=”Button1″ type=”button” value=”开始” onclick=”GetFeatureAll()” />
<div id=”result”></div>
<object id=”TEInformationWindow” classid=”CLSID:3a4f9193-65a8-11d5-85c1-0001023952c1″ width=”300″ height=”521″></object>
<object id=”TE” classid=”clsid:3a4f9192-65a8-11d5-85c1-0001023952c1″ style=”width: 600px;height: 600px”></object>
<object id=”SGWorld66″ classid=”CLSID:3a4f9199-65a8-11d5-85c1-0001023952c1″ style=”visibility: hidden;height: 0″></object>
</body>
</html> 5.这个地方也比较关键,就是在查询之前,必须,在运行界面上点击一个数据,显示数据,才可以查询出数据,这里也是很别扭的,如果不点击地图查看一条数据,依然查不到数据