用AE如何实现在AxSceneControl里面实现鹰眼啊？

((IGlobeDisplayEvents_Event)this.axGlobeControl1.Globe.GlobeDisplay).AfterDraw += new IGlobeDisplayEvents_AfterDrawEventHandler(OnAfterDraw);

void OnAfterDraw(ISceneViewer pViewer) {

IGraphicsContainer pGra = axMapControl1.Map as IGraphicsContainer; IActiveView pAv = pGra as IActiveView;
// 在绘制前，清除 axMapControl1 中的任何图形元素
pGra.DeleteAllElements();
IRectangleElement pRectangleEle = new RectangleElementClass();
IElement pEle = pRectangleEle as IElement;
// pEle.Geometry = Get_VisibleGeographicExtent(this.axGlobeControl1.Globe);
// 设置鹰眼图中的红线框
IRgbColor pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
pColor.Transparency = 25;
// 产生一个线符号对象
ILineSymbol pOutline = new SimpleLineSymbolClass();
pOutline.Width = 2;
pOutline.Color = pColor;
// 设置颜色属性
pColor = new RgbColorClass();
pColor.Red = 255;
pColor.Green = 0;
pColor.Blue = 0;
pColor.Transparency = 0;
// 设置填充符号的属性
IFillSymbol pFillSymbol = new SimpleFillSymbolClass();
pFillSymbol.Color = pColor;
pFillSymbol.Outline = pOutline;
IFillShapeElement pFillShapeEle = pEle as IFillShapeElement;
pFillShapeEle.Symbol = pFillSymbol;
pGra.AddElement((IElement)pFillShapeEle, 0);
// 刷新
pAv.PartialRefresh(esriViewDrawPhase.esriViewGraphics, null, null);

pEle.Geometry = Get_VisibleGeographicExtent(this.axGlobeControl1.Globe);

}