求助，raster在scence控件中无法显示三维地形

<P>如题：用以下代码不能显示三维地形</P>
<P> Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load</P>
<P>'添加栅格数据层</P>
<P>       dim fullMapLayer As ESRI.ArcGIS.Carto.IRasterLayer<BR>        fullMapLayer = New RasterLayerClass<BR>        fullMapLayer.CreateFromFilePath("E:\test\ncgrid")<BR>        Me.AxSceneControl1.Scene.AddLayer(fullMapLayer)<BR>        fullMapLayer = Nothing</P>
<P>    End Sub</P>
<P> Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click</P>
<P>'点击按钮进行三维显示</P>
<P>        Me.AxSceneControl1.Scene.SuggestExaggerationFactor(0.12, 10)<BR>        Me.AxSceneControl1.Scene.SceneGraph.RefreshViewers()<BR>        Me.AxSceneControl1.Refresh()<BR>    End Sub</P>
<P>可是结果不能显示为三维，特请教高手！</P>

我已经解决了，哈哈，能够显示成三维的，爽哦！

请问楼主是如何实现的,能不能把代码公布一下,我刚开始学!谢谢!

代码公布一下???