SuperMap.Web.Realspace.Layer3D = function( 
   
strServerRootUrl : String,
   
strLayerName : String,
   
strDataName : String,
   
l3dType : Layer3DType
) {};

var instanceVar = new SuperMap.Web.Realspace.Layer3D();

function TestLayer3D()
{
    var sceneControl = new SuperMap.Web.UI.Controls.SceneControl(document.getElementById("sceneControlDiv"));   
    var scene = sceneControl.get_scene();  
    
    在场景中加载一个影像类型的图层，图层所在服务器地址为“serverAddress”，图层名称为“image_layerName”，与图层对应的数据名称为“image_dataName”
    var layer3D = scene.get_layer3Ds().add("serverAddress","image_layerName","image_dataName",SuperMap.Web.Realspace.Layer3DType.IMAGE); 
    设置三维图层的标题
    layer3D.set_caption ("image layer");
    
    设置三维图层的描述信息
    layer3D.set_description ("This is an image layer.");
    
    设置三维图层的可选状态
    layer3D.set_isSelectable (false);
    
    设置三维图层的可见状态
    layer3D.set_isVisible (true);
    
    设置三维图层最大可见高程值
    layer3D.set_maxVisibleAltitude (500000) ;
    
    设置三维图层对象的可见距离
    layer3D.set_visibleDistance (100000);
    
    var geoBounds = layer3D.get_bounds();
    飞行到目标区域
    scene.get_flyingOperator().flyToBounds(geoBounds); 
}