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阅读：2271回复：8
基于AE(SceneControl)的要素信息查询源代码
<P>实现在SceneControl的信息查询.</P>
<P>代码下载:</P> <P><a href="attachment/2007-3/20073614284291257.rar">2007-3/20073614284291257.rar</a><BR></P> <P>部分代码:</P> <DIV >Private Sub ArcSceneControl_OnMouseDown(ByVal Button As Long, ByVal Shift As Long, ByVal X As Long, ByVal Y As Long)<BR> ArcSceneControl.SceneGraph.IsNavigating = False<BR> Call Identify3DMap(X, Y)<BR>end sub<BR><BR>'输入:当前3D地图，x坐标,y坐标,引用公共变量M_pFeatureArray<BR>'输出:对3D地图上的目标选中，调用frmidentify显示选中目标的信息<BR>'功能:单点查询<BR>'程序:tjh 2005.1.29<BR>Private Sub Identify3DMap(X As Long, Y As Long)<BR> <BR> ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''<BR> <BR> 'QI for IBasicMap from IScene<BR> Dim pBasicMap As IBasicMap<BR> Set pBasicMap = ArcSceneControl.SceneGraph.Scene<BR> 'QI for IScreenDisplay from ISceneGraph<BR> Dim pScreenDisplay As IScreenDisplay<BR> Set pScreenDisplay = ArcSceneControl.SceneGraph<BR> <BR> 'Translate screen coordinates into mulitple 3D objects<BR> Dim pHit3DSet As IHit3DSet<BR> ArcSceneControl.SceneGraph.LocateMultiple ArcSceneControl.SceneGraph.ActiveViewer, X, Y, esriScenePickGeography, False, pHit3DSet<BR> <BR> 'Reduce the hit set to the top<BR> 'most hits and one hit per layer<BR> pHit3DSet.Topmost 1.5<BR> pHit3DSet.OnePerLayer<BR> pHit3DSet.Topmost 1.1<BR> <BR> 'Get an array of hits<BR> Dim pArray As IArray<BR> Set pArray = pHit3DSet.Hits<BR> If pArray.Count = 0 Then Exit Sub<BR> <BR> 'Loop through each hit<BR> Dim i As Integer<BR> ReDim M_pFeatureArray(0)<BR> For i = 0 To pArray.Count - 1<BR> <BR> 'Get the hit<BR> Dim pHit3D As IHit3D<BR> Set pHit3D = pArray.Element(i)<BR> 'Get the hit location<BR> Dim pPoint As IPoint<BR> Set pPoint = pHit3D.Point<BR> If pPoint Is Nothing Then Exit Sub<BR> 'Get the layer that was hit<BR> If Not TypeOf pHit3D.Owner Is ILayer Then Exit Sub<BR> Dim pLayer As ILayer<BR> Set pLayer = pHit3D.Owner<BR> 'Get the feature that was hit<BR> Dim pObject As IUnknown<BR> Set pObject = pHit3D.object<BR> <BR> 'Add to identify dialog<BR> ReDim Preserve M_pFeatureArray(UBound(M_pFeatureArray) + 1)<BR> Dim pFeature As iFeature<BR> Set pFeature = pHit3D.object<BR> Set M_pFeatureArray(UBound(M_pFeatureArray) - 1).iFeature = pFeature<BR> M_pFeatureArray(UBound(M_pFeatureArray) - 1).iLayerName = CStr(pLayer.Name)<BR> <BR> Next i<BR> <BR> '''''''''''''''''''''''''''''''''''''''''''''''''<BR> If frmIdentify.Visible = False Then<BR> frmIdentify.Show 0<BR> End If<BR> frmIdentify.SetFocus<BR> Call frmIdentify.InitTreeView<BR>End Sub</DIV> |
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1楼#
发布于：2007-03-06 14:44
希望可以发一点 java+AE 来实现的例子。<img src="images/post/smile/dvbbs/em08.gif" />
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2楼#
发布于：2007-03-06 14:45
<P>希望你可以发一些关于java+AE 开发的一些例子或一些学习资料。</P>
<P>谢谢</P><img src="images/post/smile/dvbbs/em08.gif" /> |
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3楼#
发布于：2007-03-08 15:08
<P>大哥你以上代码我调试不能通过，</P>
<P>公共变量M_pFeatureArray是如何定义的，</P> <P>Set M_pFeatureArray(UBound(M_pFeatureArray) - 1).iFeature = pFeature<BR>M_pFeatureArray(UBound(M_pFeatureArray) - 1).iLayerName = CStr(pLayer.Name)</P> <P>以上代码中iFeature，iLayerName属性是如何实现的，</P> <P>我的邮箱<a href="mailtwisdomy04@163.com" target="_blank" >wisdomy04@163.com</A>，把你调试成功的发给我可以不</P> <P>感激不尽，，，<BR></P> |
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4楼#
发布于：2007-03-08 15:42
<TABLE width="100%">
<TR> <TD class=subtitle colSpan=6>内容摘要</TD></TR> <TR> <TD class=txt colSpan=6>如何实现3D环境中的3D查询功能</TD></TR> <TR> <TD class=subtitle colSpan=6>过程描述</TD></TR> <TR> <TD class=txt colSpan=6> <P>Public Type m_pObjArray<BR> iFeature As iFeature<BR> iLayerName As String<BR>End Type<BR>Public M_pFeatureArray() As m_pObjArray</P> <P>Private Sub Identify3DMap(X As Long, Y As Long)<BR> <BR> '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''<BR><BR> <BR> 'QI for IBasicMap from IScene<BR> Dim pBasicMap As IBasicMap<BR> Set pBasicMap = ArcSceneControl.SceneGraph.Scene<BR> 'QI for IScreenDisplay from ISceneGraph<BR> Dim pScreenDisplay As IScreenDisplay<BR> Set pScreenDisplay = ArcSceneControl.SceneGraph<BR> <BR> 'Translate screen coordinates into mulitple 3D objects<BR> Dim pHit3DSet As IHit3DSet<BR> ArcSceneControl.SceneGraph.LocateMultiple ArcSceneControl.SceneGraph.ActiveViewer, X, Y, esriScenePickGeography, False, pHit3DSet<BR> <BR> 'Reduce the hit set to the top<BR> 'most hits and one hit per layer<BR> pHit3DSet.Topmost 1.5<BR> pHit3DSet.OnePerLayer<BR> pHit3DSet.Topmost 1.1<BR> <BR> 'Get an array of hits<BR> Dim pArray As IArray<BR> Set pArray = pHit3DSet.Hits<BR> If pArray.Count = 0 Then Exit Sub<BR> <BR> 'Loop through each hit<BR> Dim i As Integer<BR> ReDim M_pFeatureArray(0)<BR> For i = 0 To pArray.Count - 1<BR> <BR> 'Get the hit<BR> Dim pHit3D As IHit3D<BR> Set pHit3D = pArray.Element(i)<BR> 'Get the hit location<BR> Dim pPoint As IPoint<BR> Set pPoint = pHit3D.Point<BR> If pPoint Is Nothing Then Exit Sub<BR> 'Get the layer that was hit<BR> If Not TypeOf pHit3D.Owner Is ILayer Then Exit Sub<BR> Dim pLayer As ILayer<BR> Set pLayer = pHit3D.Owner<BR> 'Get the feature that was hit<BR> Dim pObject As IUnknown<BR> Set pObject = pHit3D.object<BR> <BR> 'Add to identify dialog<BR> ReDim Preserve M_pFeatureArray(UBound(M_pFeatureArray) + 1)<BR> Dim pFeature As iFeature<BR> Set pFeature = pHit3D.object<BR> Set M_pFeatureArray(UBound(M_pFeatureArray) - 1).iFeature = pFeature<BR> M_pFeatureArray(UBound(M_pFeatureArray) - 1).iLayerName = CStr(pLayer.Name)<BR> <BR> Next i<BR> <BR> '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''<BR> If frmIdentify.Visible = False Then<BR> frmIdentify.Show 0<BR> End If<BR> frmIdentify.SetFocus<BR> Call frmIdentify.InitTreeView<BR>End Sub<BR></P></TD></TR></TABLE> |
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5楼#
发布于：2007-03-08 20:10
<img src="images/post/smile/dvbbs/em02.gif" />
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6楼#
发布于：2007-06-02 09:31
ok
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7楼#
发布于：2007-06-04 17:25
<img src="images/post/smile/dvbbs/em02.gif" />
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8楼#
发布于：2007-06-04 19:39
<P>这几天正在看这方面的东西！！</P><img src="images/post/smile/dvbbs/em02.gif" />
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