怎样把屏幕上画的点加到已存在的图层中?

<P>我想在MapControl控件中画一点后让该点加到已经加载到控件中的图层中,怎么做呀?</P>

帮顶

<P>得到要保存到的那个图层的featureclass</P>
<P>然后用feature=<EM>Ifeatureclass.createfeature新建一个要素</EM></P>
<P><EM>然后将点的shape赋值给feature.shape</EM></P>
<P><EM>然后feature.stor</EM></P>

<P>谢谢,已搞定!</P>

<P><STRONG>楼主，我也碰到这个问题，我按照<FONT face=Verdana color=#61b713>haihunyunpo朋友<FONT color=#000000>说的也做不出来，</FONT></FONT></STRONG></P>
<P><STRONG><FONT face=Verdana color=#61b713><FONT color=#000000>    你能把你的源代码共享一下吗，谢谢！</FONT></FONT></STRONG></P>

<P>Private Sub CreateFeature(pGeom As IGeometry)<BR>  Dim pWorkspaceEdit As IWorkspaceEdit<BR>  Dim pFeatureLayer As IFeatureLayer<BR>  Dim pFeatureClass As IFeatureClass<BR>  Dim pFeature As IFeature<BR>  <BR>  On Error GoTo CreateFeature_err<BR>  <BR>  If pGeom Is Nothing Then Exit Sub<BR>  If m_pCurrentLayer Is Nothing Then Exit Sub<BR>  <BR>  ' Create the feature<BR>  Set pWorkspaceEdit = GetWorkspaceEdit<BR>  Set pFeatureLayer = m_pCurrentLayer<BR>  Set pFeatureClass = pFeatureLayer.FeatureClass<BR>  pWorkspaceEdit.StartEditOperation<BR>  Set pFeature = pFeatureClass.CreateFeature<BR>  Set pFeature.Shape = pGeom<BR>  pFeature.Store<BR>  pWorkspaceEdit.StopEditOperation<BR>  <BR>  ' Select the feature that's been created<BR>  m_pMap.SelectFeature m_pCurrentLayer, pFeature</P>
<P>  ' Refresh the relevant area of the active view<BR>  Dim pActiveView As IActiveView<BR>  Set pActiveView = m_pMap<BR>  If pGeom.GeometryType = esriGeometryPoint Then<BR>    Dim length As Double<BR>    length = ConvertPixelsToMapUnits(m_pMap, 30)<BR>    Dim pTopo As ITopologicalOperator<BR>    Set pTopo = pGeom<BR>    Dim pBuffer As IGeometry<BR>    Set pBuffer = pTopo.Buffer(length)<BR>    pActiveView.PartialRefresh esriDPGeography Or esriDPSelection, m_pCurrentLayer, pBuffer.Envelope<BR>  Else<BR>    pActiveView.PartialRefresh esriDPGeography Or esriDPSelection, m_pCurrentLayer, pGeom.Envelope<BR>  End If<BR>  <BR>  Exit Sub<BR>CreateFeature_err:<BR>  MsgBox Err.Description<BR>End Sub</P>