public void SplitPolylines() //分割线
{
m_pLineFeed = (INewLineFeedback)m_pFeedback;
IPolyline pFeatureScissors = (IPolyline)m_pLineFeed.Stop(); //结束绘制切割线
if (pFeatureScissors.Length == 0)
{
Reset();
return;
}
ITopologicalOperator pTopologim_CalOperator = (ITopologicalOperator)pFeatureScissors;
ILayer pFeatureLayer;
pFeatureLayer = m_App.CurrentEditLayer;
IGeometry pOldGeometry;
IFeature pOldFeature;
IWorkspaceEdit pWorkspaceEdit;
pWorkspaceEdit = (IWorkspaceEdit)CommonFunction.GetLayerWorkspace(pFeatureLayer);
if (pWorkspaceEdit == null)
{
return;
}
if (!pWorkspaceEdit.IsBeingEdited())
{
return;
}
pWorkspaceEdit.StartEditOperation();
for (int i = 0; i < m_OriginFeatureArray.Count; i++) //遍历每个选中的要素
{
pOldFeature = (IFeature)m_OriginFeatureArray.get_Element(i);
pOldGeometry = (IGeometry)pOldFeature.Shape;
IArray pArray = new ArrayClass(); //将地理要素的坐标信息添加到点数组中
pArray = CommonFunction.GeometryToArray(pOldGeometry);
//跳转到拓扑操作接口，求“剪刀”与选中要素的交点
IGeometry pIntersectGeo = pTopologim_CalOperator.Intersect(pOldGeometry, esriGeometryDimension.esriGeometry0Dimension);
if (pIntersectGeo == null)
{
return; //无交点，则返回
}
ITopologicalOperator pTopOp = (ITopologicalOperator)pIntersectGeo;
pTopOp.Simplify();
IPointCollection pPointCol = (IPointCollection)pIntersectGeo; //交点的集合
//用相交的点集合打断该线
IPointCollection pTmpPointCol = new MultipointClass();
pTmpPointCol.AddPointCollection(pPointCol); //临时点集
IPolycurve2 pPolyCurve;
pPolyCurve = (IPolycurve2)pOldGeometry; //被剪切的线要素
((ITopologicalOperator)pPolyCurve).Simplify();
IGeometryCollection pGeoCollection;
IGeometryCollection pTmpGeoCollection; //保存每次打断产生的线段
pTmpGeoCollection = (IGeometryCollection)pPolyCurve;
pGeoCollection = (IGeometryCollection)pPolyCurve;
for (int j = 0; j < pPointCol.PointCount; j++) //遍历每个交点
{
IPoint pSplitPoint = pPointCol.get_Point(j);
int GeoCount = 0;
int pGeoCollectionCount = pGeoCollection.GeometryCount;
while (GeoCount < pGeoCollectionCount) //遍历每个几何形体
{
IPolycurve2 pTmpPolycurve2;
pTmpPolycurve2 = CommonFunction.BuildPolyLineFromSegmentCollection((ISegmentCollection)pGeoCollection.get_Geometry(GeoCount));
bool bProject; //是否投影
bool bCreatePart; //是否创建新的附件
bool bSplitted; //分裂是否成功
int lNewPart;
int lNewSeg;
bProject = true;
bCreatePart = true;
((ITopologicalOperator)pTmpPolycurve2).Simplify();
pTmpPolycurve2.SplitAtPoint(pSplitPoint, bProject, bCreatePart, out bSplitted, out lNewPart, out lNewSeg);
if (bSplitted) //更新pGeoCollection
{
pGeoCollection.RemoveGeometries(GeoCount, 1);
pTmpGeoCollection = (IGeometryCollection)pTmpPolycurve2;
pGeoCollection.AddGeometryCollection(pTmpGeoCollection);
}
GeoCount++;
}
}
IGeometryCollection pGeometryCol = pGeoCollection; //被打断后的线的集合
for (int intCount = 0; intCount < pGeometryCol.GeometryCount; intCount++)
{
IPolycurve2 pPolyline = CommonFunction.BuildPolyLineFromSegmentCollection((ISegmentCollection)pGeometryCol.get_Geometry(intCount));
CommonFunction.AddFeature(m_MapControl, (IGeometry)pPolyline, m_App.CurrentEditLayer, pOldFeature, pArray);
}
pOldFeature.Delete();
}
m_App.Workbench.CommandBarManager.Tools["2dmap.DFEditorTool.Undo"].SharedProps.Enabled = true;
pWorkspaceEdit.StopEditOperation();
Reset();
}
public void DoUnion() //联合操作
{
if (m_FeatureArray.Count < 2)
{
Reset();
return;
}
ILayer pFeatureLayer;
pFeatureLayer = m_App.CurrentEditLayer;
IGeometry pOldGeometry;
IFeature pOldFeature;
IGeometry pOtherGeo;
IWorkspaceEdit pWorkspaceEdit;
pWorkspaceEdit = (IWorkspaceEdit)CommonFunction.GetLayerWorkspace(pFeatureLayer);
if (pWorkspaceEdit == null)
{
return;
}
if (!pWorkspaceEdit.IsBeingEdited())
{
return;
}
pWorkspaceEdit.StartEditOperation();
pOldFeature = (IFeature)m_FeatureArray.get_Element(0);
pOldGeometry = (IGeometry)pOldFeature.Shape;
IArray pArrayPoint = new ArrayClass(); //将坐标信息存储到点数组中
pArrayPoint = CommonFunction.GeometryToArray(pOldFeature.ShapeCopy);
for (int i = 1; i < m_FeatureArray.Count; i++) //遍历每个选中的要素
{
pOtherGeo = (IGeometry)((IFeature)m_FeatureArray.get_Element(i)).Shape;
IArray pTempArrayPoint = new ArrayClass(); //将坐标信息存储到点数组中
pTempArrayPoint = CommonFunction.GeometryToArray(((IFeature)m_FeatureArray.get_Element(i)).ShapeCopy);
for (int j = 0; j < pTempArrayPoint.Count; j++)
{
pArrayPoint.Add(pTempArrayPoint.get_Element(j) as Point);
}
pOldGeometry = CommonFunction.UnionGeometry(pOldGeometry, pOtherGeo);
}
CommonFunction.AddFeature(m_MapControl, pOldGeometry, m_App.CurrentEditLayer, pOldFeature, pArrayPoint);
//可以删除选中的要素了
for (int i = 0; i < m_FeatureArray.Count; i++) //遍历每个选中的要素
{
((IFeature)m_FeatureArray.get_Element(i)).Delete();
}
m_App.Workbench.CommandBarManager.Tools["2dmap.DFEditorTool.Undo"].SharedProps.Enabled = true;
pWorkspaceEdit.StopEditOperation();
Reset();
}
