public void SplitPolygons() //分割面
{
m_pLineFeed = (INewLineFeedback)m_pFeedback;
if (m_pLineFeed == null)
{
Reset();
return;
}
IPolyline pFeatureScissors = m_pLineFeed.Stop(); //结束绘制切割线
if (pFeatureScissors.Length == 0)
{
Reset();
return;
}
ILayer pFeatureLayer;
pFeatureLayer = m_App.CurrentEditLayer;
IGeometry pOldGeometry;
IFeature pOldFeature;
IWorkspaceEdit pWorkspaceEdit;
pWorkspaceEdit = (IWorkspaceEdit)CommonFunction.GetLayerWorkspace(pFeatureLayer);
if (pWorkspaceEdit == null)
{
return;
}
pWorkspaceEdit.StartEditOperation();
for (int i = 0; i < m_OriginFeatureArray.Count; i++) //遍历每个选中的要素
{
IArray pArrGeo = new ArrayClass();
pOldFeature = (IFeature)m_OriginFeatureArray.get_Element(i);
pOldGeometry = (IGeometry)pOldFeature.Shape;
if ((pOldGeometry == null) || (pFeatureScissors == null))
{
return;
}
if (pOldGeometry.GeometryType != esriGeometryType.esriGeometryPolygon)
{
return;
}
ITopologicalOperator pTopologim_CalOperator = (ITopologicalOperator)pOldGeometry;
IGeometry oRsGeo_1 = null, oRsGeo_2 = null;
try
{
pTopologim_CalOperator.Simplify();
pTopologim_CalOperator.Cut(pFeatureScissors, out oRsGeo_1, out oRsGeo_2);
IGeometryCollection oGeoCol = (IGeometryCollection)oRsGeo_1;
for (int j = 0; j < oGeoCol.GeometryCount; j++)
{
ISegmentCollection oNewPoly = new PolygonClass();
oNewPoly.AddSegmentCollection((ISegmentCollection)oGeoCol.get_Geometry(j));
pArrGeo.Add(oNewPoly);
}
oGeoCol = (IGeometryCollection)oRsGeo_2;
for (int j = 0; j < oGeoCol.GeometryCount; j++)
{
ISegmentCollection oNewPoly = new PolygonClass();
oNewPoly.AddSegmentCollection((ISegmentCollection)oGeoCol.get_Geometry(j));
pArrGeo.Add(oNewPoly);
}
for (int j = 0; j < pArrGeo.Count; j++)
{
CommonFunction.AddFeature0(m_MapControl, (IGeometry)pArrGeo.get_Element(j), m_App.CurrentEditLayer, pOldFeature);
}
pOldFeature.Delete();
}
catch
{
//MessageBox.Show(Ex.ToString());
}
}
m_App.Workbench.CommandBarManager.Tools["2dmap.DFEditorTool.Undo"].SharedProps.Enabled = true;
pWorkspaceEdit.StopEditOperation();
Reset();
}
