function clipByBox(
 
geometry : Geometry

part : BoxClipPart

) : void;

var resultVar = instanceOfLayer3D.clipByBox(Geometry,BoxClipPart);

function clip(){


     var newAction = new SuperMap.Web.UI.Action3Ds.DrawBox(sceneControl);

 
     设置用户当前操作类型为绘制长方体盒子
     sceneControl.set_sceneAction(newAction);}
 
     绘制长方体功能

SuperMap.Web.UI.Action3Ds.DrawBox = function (sceneControl) {


     SuperMap.Web.UI.Action3Ds.DrawBox.initializeBase(this);
 
     this._name = "DrawBox";
 
     this._sceneControl = sceneControl;
 
     this._points = new SuperMap.Web.Core.Point3Ds();


     this._point;
 
     this._type = SuperMap.Web.UI.Action3Ds.SceneActionType.POINTSELECT;
 
     记录静态id

     this._id1;
 
     记录动态态id

     this._id2;
 };
SuperMap.Web.UI.Action3Ds.DrawBox.prototype = {
     dispose: function () {


     this._sceneControl = null;},
 
     onMouseDown: function (e) {


          if (e.get_flagType() % 2 == 1) {
 
                this._point = new SuperMap.Web.Core.Point3D(e.get_longitude(), e.get_latitude(), e.get_altitude());  
               
                this._point3D = new SuperMap.Web.Core.GeoPoint3D(this._point);


                var feature3D = new SuperMap.Web.Core.Feature3D();


                feature3D.set_geometry(this._point3D);
 
                获取场景的跟踪图层

                trackingLayer = this._sceneControl.get_scene().get_trackingLayer3D();
 
                设置跟踪图层可见性

                trackingLayer.set_isVisible(true);
 
                this._id = this._id + 1;
 
                构造长方体盒子

                var GeoBox = new SuperMap.Web.Core.GeoBox(200, 250, 150);

 
                获取三维模型对象
                var geomodel = GeoBox.getGeoModel(50, 50);

 
                设置三维模型位置

                geomodel.set_position(this._point);
 
                GeoBox.set_position(this._point);
 
                var feature = new SuperMap.Web.Core.Feature3D();


                var style3d = new SuperMap.Web.Core.Style3D();

 
                设置高度模式为距地相对高度模式
                style3d.set_altitudeMode(1);
 
                设置填充前景色

                style3d.set_fillForeColor(new SuperMap.Web.Core.Color(255, 0, 0, 150));
 
                设置三维要素风格

                feature.set_style3D(style3d);
 
                设置三维要素所对应的几何对象

                feature.set_geometry(geomodel);
 
                向跟踪图层添加几何对象

                trackingLayer.add(feature3D, "Point3D" + this._id);
 
                向跟踪图层添加几何对象

                trackingLayer.add(feature, "GeoBox");
 
                指定裁剪BOX内部，显示盒子外部

                scene.get_layer3Ds().get_item("Building@OlympicGreen").clipByBox(GeoBox,0);
 
                var panAction = new SuperMap.Web.UI.Action3Ds.Pan(sceneControl);

 
                设置三维要素所对应的几何对象
                sceneControl.set_sceneAction(panAction);
                } 
          else {
                var panAction = new SuperMap.Web.UI.Action3Ds.Pan(sceneControl);

 
                设置用户当前操作类型为漫游操作
                sceneControl.set_sceneAction(panAction);
                }
            }
 };
SuperMap.Web.UI.Action3Ds.DrawBox.registerClass('SuperMap.Web.UI.Action3Ds.DrawBox', SuperMap.Web.UI.Action3Ds.SceneAction, Sys.IDisposable);