private void CreatePolygonsFromFeatures(IFeatureClass getpolygon_fc)
{
IDataset dataset = getpolygon_fc as IDataset;
IWorkspaceEdit workspace = dataset.Workspace as IWorkspaceEdit;
if (!workspace.IsBeingEdited())
{
workspace.StartEditing(true);
if (!workspace.IsBeingEdited())
{
return;
}
workspace.StartEditOperation();
}
IFeatureConstruction construction = new FeatureConstructionClass();
IEnumFeature featureSelection = this.m_hookHelper.FocusMap.FeatureSelection as IEnumFeature;
if (featureSelection.Next() != null)
{
construction.ConstructPolygonsFromFeatures(null, getpolygon_fc, null, false, false, featureSelection, null, 0.01, null);
}
}
/// <summary>
/// 由小区道路生成内部地块
/// </summary>
/// <param name="getpolygon_fc"></param>
/// <param name="fromline_fl"></param>
private void createpolygonfromline(IFeatureClass getpolygon_fc, IFeatureLayer fromline_fl)
{
//判断getpolygon_fc是否为面
if (getpolygon_fc.ShapeType != esriGeometryType.esriGeometryPolygon)
{
MessageBox.Show("目标图层不是多边形图层！");
System.Console.WriteLine("目标图层不是多边形图层！");
return;
}
//得到选择的Feature的指针
IFeatureSelection pFeatureSelection = fromline_fl as IFeatureSelection;
ISelectionSet pSelectionSet = pFeatureSelection.SelectionSet;
ICursor pCursor;
pSelectionSet.Search(null, false, out pCursor);
IFeatureCursor pFeatureCursor = pCursor as IFeatureCursor;
IGeoDataset pGeoDataset = getpolygon_fc as IGeoDataset;
IEnvelope pEnvelope = pGeoDataset.Extent;
IInvalidArea pInvalidArea = new InvalidAreaClass();
IFeatureConstruction pFeatureConstruction = new FeatureConstructionClass();
IDataset pDataset = getpolygon_fc as IDataset;
IWorkspace pWorkspace = pDataset.Workspace;
IWorkspaceEdit pWorkspaceEdit = pWorkspace as IWorkspaceEdit;
if (pWorkspaceEdit.IsBeingEdited() != true)
{
pWorkspaceEdit.StartEditing(true);
pWorkspaceEdit.StartEditOperation();
}
//开始
try
{
pFeatureConstruction.ConstructPolygonsFromFeaturesFromCursor(null, getpolygon_fc, pEnvelope, true, false, pFeatureCursor, pInvalidArea, -1, null);
pWorkspaceEdit.StopEditOperation();
pWorkspaceEdit.StopEditing(true);
}
catch
{
MessageBox.Show("构造多边形失败！");
System.Console.WriteLine("构造多边形失败！");
pWorkspaceEdit.AbortEditOperation();
}
//获取FeatureClass
IWorkspace editedWorkspace = pWorkspaceEdit as IWorkspace;
IEnumDataset FeatureEnumDataset = editedWorkspace.get_Datasets(esriDatasetType.esriDTFeatureClass);
if (FeatureEnumDataset == null)
{
return;
}
FeatureEnumDataset.Reset();
IDataset editedDataset = FeatureEnumDataset.Next();
IFeatureClass pFC = editedDataset as IFeatureClass;
//错误写法
//IFeatureWorkspace pFeatureWorkspace = pWorkspaceEdit as IFeatureWorkspace;
//IFeatureDataset pFeatureDataset = pFeatureWorkspace as IFeatureDataset;
//IFeatureClass pFC = pFeatureDataset as IFeatureClass;
//将生成面元素显示在图层中
IFeatureLayer pFLayer = new FeatureLayerClass();
pFLayer.FeatureClass = pFC;
pFLayer.Name = pFC.AliasName;//保存为“生成地块.shp”
ILayer pLayer = pFLayer as ILayer;
Form1.mainForm.axMapControl1.Map.AddLayer(pLayer);
Form1.mainForm.axMapControl1.ActiveView.Refresh();
}
public void OnDblClick()
{
Editor.UniqueInstance.CheckOverlap = false;
try
{
IFeatureLayer targetLayer = Editor.UniqueInstance.TargetLayer;
object missing = Type.Missing;
if (!this.m_IsUsed || (this.m_LineFeedback == null))
{
return;
}
if (this.m_Step > 1)
{
IPolyline polyline = this.m_LineFeedback.Stop();
if (polyline == null)
{
this.Init();
return;
}
IFeatureClass featureClass = targetLayer.FeatureClass;
if (featureClass == null)
{
this.Init();
return;
}
IGeoDataset dataset = featureClass as IGeoDataset;
if (polyline.SpatialReference != dataset.SpatialReference)
{
polyline.Project(dataset.SpatialReference);
polyline.SpatialReference = dataset.SpatialReference;
}
IGeometry inGeometry = polyline;
GeometryBagClass lineSrc = new GeometryBagClass();
lineSrc.AddGeometry(inGeometry, ref missing, ref missing);
targetLayer.Selectable = true;
IDataset dataset2 = featureClass as IDataset;
IWorkspace selectionWorkspace = dataset2.Workspace;
IEnvelope extent = dataset.Extent;
IInvalidArea invalidArea = new InvalidAreaClass();
IFeatureConstruction construction = new FeatureConstructionClass();
IFeatureSelection selection = targetLayer as IFeatureSelection;
ISelectionSet selectionSet = selection.SelectionSet;
Editor.UniqueInstance.SetArea = false;
Editor.UniqueInstance.StartEditOperation();
ISpatialReferenceTolerance spatialReference = (ISpatialReferenceTolerance)dataset.SpatialReference;
construction.AutoCompleteFromGeometries(featureClass, extent, lineSrc, invalidArea, spatialReference.XYTolerance, selectionWorkspace, out selectionSet);
if ((selectionSet == null) || (selectionSet.Count < 1))
{
Editor.UniqueInstance.AbortEditOperation();
}
else
{
List <IFeature> pFeatureList = new List <IFeature>();
IEnumIDs iDs = selectionSet.IDs;
iDs.Reset();
for (int i = iDs.Next(); i >= 0; i = iDs.Next())
{
IFeature pFeature = featureClass.GetFeature(i);
FeatureFuncs.SetFeatureArea(pFeature);
pFeatureList.Add(pFeature);
}
if (selectionSet.Count == 1)
{
IFeature feature = pFeatureList[0];
selection.Clear();
selection.Add(feature);
AttributeManager.AttributeAddHandleClass.AttributeAdd(ref feature);
}
else
{
AttributeManager.AttributeSplitHandleClass.AttributeSplit(null, ref pFeatureList);
}
Editor.UniqueInstance.StopEditOperation("AutoComplete");
}
Editor.UniqueInstance.SetArea = true;
this.m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection | esriViewDrawPhase.esriViewGeography, null, this.m_hookHelper.ActiveView.Extent);
}
}
catch (Exception exception)
{
this.mErrOpt.ErrorOperate(this.mSubSysName, "ShapeEdit.AutoComplete", "OnDblClick", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
}
this.Init();
Editor.UniqueInstance.CheckOverlap = true;
}
