private void EditMouseUp(IPoint pPnt)
{
IPolygon pPolyResult;
IPolyline pPolylineResult;
IFeatureCursor pFeatureCursor;
IFeature pFeature;
IFeatureLayer pFeatLyr = m_EngineEditLayers.TargetLayer;
//检查编辑的地物
if (m_editDispFeed != null)
{
switch (m_pHitElem.Geometry.GeometryType)
{
case esriGeometryType.esriGeometryLine:
case esriGeometryType.esriGeometryPolyline:
pPolylineResult = m_polylineMvPtFeed.Stop();
//作有效性检查
if ((pPolylineResult != null))
{
//更新元素
m_pHitElem.Geometry = pPolylineResult;
//获取选中的地物
pFeatureCursor = MapManager.GetSelectedFeatures(pFeatLyr);
if (pFeatureCursor == null)
{
return;
}
pFeature = pFeatureCursor.NextFeature();
m_EngineEditor.StartOperation();
//更新要素形状
pFeature.Shape = pPolylineResult;
pFeature.Store();
//停止编辑
m_EngineEditor.StopOperation("MoveVertex");
EditVertexClass.ShowAllVertex(pFeatLyr);
}
break;
case esriGeometryType.esriGeometryPolygon:
case esriGeometryType.esriGeometryEnvelope:
//得到反馈的结果
pPolyResult = m_polyMvPtFeed.Stop();
//作有效性检查
if (pPolyResult != null)
{
//更新元素
m_pHitElem.Geometry = pPolyResult;
//获取选中的地物
pFeatureCursor = MapManager.GetSelectedFeatures(pFeatLyr);
if (pFeatureCursor == null)
{
return;
}
pFeature = pFeatureCursor.NextFeature();
m_EngineEditor.StartOperation();
//更新要素形状
pFeature.Shape = pPolyResult;
pFeature.Store();
//停止编辑
m_EngineEditor.StopOperation("MoveVertex");
if (pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolygon ||
pFeature.Shape.GeometryType == esriGeometryType.esriGeometryPolyline)
{
EditVertexClass.ShowAllVertex(pFeatLyr);
}
}
IFeature pTempParcel;
//定义存储多边形要素的局部变量
IPoint pDestPoint;
//定义节点移动的目标位置
pDestPoint = pPnt;
IZAware pZAware = pDestPoint as IZAware;
pZAware.ZAware = true;
pDestPoint.Z = 0;
//所有包含该节点的多边形都进行操作
for (int i = 0; i <= EditVertexClass.m_featArray.Count - 1; i++)
{
pTempParcel = EditVertexClass.m_featArray.get_Element(i) as IFeature;
//记录节点序号
int pIndex = 0;
pIndex = EditVertexClass.GetVertexIndex(m_fromPoint, pTempParcel.Shape);
if (!(pIndex == -2))
{
ITopologicalOperator pTopoOpt = default(ITopologicalOperator);
IPolygon pPolygon = default(IPolygon);
IPointCollection pPolygonPointCol = default(IPointCollection);
pPolygonPointCol = pTempParcel.ShapeCopy as IPointCollection;
pPolygonPointCol.UpdatePoint(pIndex, pDestPoint);
pPolygon = pPolygonPointCol as IPolygon;
pPolygon.Close();
pTopoOpt = pPolygon as ITopologicalOperator;
pTopoOpt.Simplify();
pTempParcel.Shape = pPolygon;
pTempParcel.Store();
}
}
EditVertexClass.m_featArray.RemoveAll();
break;
}
//释放内存
m_polyMvPtFeed = null;
m_polylineMvPtFeed = null;
m_editDispFeed = null;
m_pHitElem = null;
//刷新地图
m_activeView.Refresh();
}
}
private void AddVertexNode(IPoint pPnt)
{
try
{
IFeatureLayer pFeaturelayer = m_EngineEditLayers.TargetLayer;
IActiveView pActiveView = m_activeView;
IPoint pPoint = pPnt;
if (pFeaturelayer.FeatureClass == null)
{
return;
}
//如果不是面状地物则退出
if (pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryEnvelope &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryPolygon &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryLine &&
pFeaturelayer.FeatureClass.ShapeType != esriGeometryType.esriGeometryPolyline)
{
return;
}
IGeometry pGeo = null;
IFeature pSelFeature = null;
pSelFeature = EditVertexClass.GetSelectedFeature(pFeaturelayer);
//是否有选中的几何体
if (pSelFeature == null)
{
return;
}
//解决不带Z值的要素的编辑和Z值为空的要素的编辑问题
IZAware pZAware = pPoint as IZAware;
pZAware.ZAware = true;
pPoint.Z = 0;
bool pInLine = false;
ITopologicalOperator pTopoOpt = default(ITopologicalOperator);
IPolyline pBoundaryLine = default(IPolyline);
//最小的距离
double pMindis = 0;
IProximityOperator pProxOpt = default(IProximityOperator);
//得到多边形的边界
if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryEnvelope)
{
//获取边界线
pBoundaryLine = EditVertexClass.GetBoundary(pFeaturelayer);
}
else if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryLine)
{
pBoundaryLine = pSelFeature.ShapeCopy as IPolyline;
}
pTopoOpt = pPoint as ITopologicalOperator;
IRelationalOperator pRelationalOperator = default(IRelationalOperator);
pRelationalOperator = pPoint as IRelationalOperator;
//判断点是否在边界上
pInLine = pRelationalOperator.Within(pBoundaryLine);
//如果不在边界上，判断是否小于容忍距离,如果大于容忍距离则退出程序
if (pInLine == false)
{
pProxOpt = pPoint as IProximityOperator;
pMindis = pProxOpt.ReturnDistance(pBoundaryLine);
if (pMindis > THE_POINT_TO_POINT_TOLERANCE)
{
return;
}
}
//判断是否增加的点刚好为节点
IPointCollection pPolylinePointCol = pBoundaryLine as IPointCollection;
IHitTest pHitTest = default(IHitTest);
double pHitDis = 0;
int pSegIndex = 0;
int pVerIndex = 0;
IPoint pHitPoint = null;
bool bRightSide = true;
pHitTest = pBoundaryLine as IHitTest;
//增加的点为已有的节点则退出程序
if (pHitTest.HitTest(pPoint, THE_POINT_TO_POINT_TOLERANCE * 10,
esriGeometryHitPartType.esriGeometryPartVertex, pHitPoint,
ref pHitDis, ref pSegIndex, ref pVerIndex, ref bRightSide) == true)
{
if (pHitDis < THE_POINT_TO_POINT_TOLERANCE)
{
return;
}
}
EditVertexClass.pHitPnt = pHitPoint;
//为多边形增加节点
ISegmentCollection pSegmentCollection = pBoundaryLine as ISegmentCollection;
IPolyline pSegPolyline = null;
int pPointIndex = 0;
ILine pLine = default(ILine);
double pDis1 = 0;
double pDis2 = 0;
IPoint pVerTex = default(IPoint);
pMindis = 100;
pProxOpt = pPoint as IProximityOperator;
for (int i = 0; i <= pSegmentCollection.SegmentCount - 1; i++)
{
//判断选中点是否在这个Segment上
pLine = pSegmentCollection.get_Segment(i) as ILine;
pDis1 = pProxOpt.ReturnDistance(pLine.FromPoint);
pDis2 = pProxOpt.ReturnDistance(pLine.ToPoint);
if (Math.Abs(pDis1 + pDis2 - pLine.Length) <= pMindis)
{
pMindis = Math.Abs(pDis1 + pDis2 - pLine.Length);
pVerTex = pLine.ToPoint;
}
}
//获取选中的几何特征
pGeo = pSelFeature.Shape;
//得到索引
pPointIndex = EditVertexClass.GetVertexIndex(pVerTex, pGeo);
//如果是首点，则设置为最后一个点
if (pPointIndex == 0)
{
pPointIndex = pSegmentCollection.SegmentCount;
}
IPointCollection pPolygonPointCol = null;
pPolygonPointCol = pSelFeature.ShapeCopy as IPointCollection;
pPolygonPointCol.InsertPoints(pPointIndex, 1, ref pPoint);
m_EngineEditor.StartOperation();
//拓扑操作
IPolygon pPolygon = null;
IPolyline pPlyline = null;
if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolygon ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryEnvelope)
{
pPolygon = pPolygonPointCol as IPolygon;
pPolygon.Close();
pTopoOpt = pPolygon as ITopologicalOperator;
pTopoOpt.Simplify();
pSelFeature.Shape = pPolygon;
pSelFeature.Store();
}
else if (pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryPolyline ||
pFeaturelayer.FeatureClass.ShapeType == esriGeometryType.esriGeometryLine)
{
pPlyline = pPolygonPointCol as IPolyline;
pTopoOpt = pPlyline as ITopologicalOperator;
pTopoOpt.Simplify();
pSelFeature.Shape = pPlyline;
pSelFeature.Store();
}
//停止编辑
m_EngineEditor.StopOperation("AddVertexTool");
//显示顶点
EditVertexClass.ShowAllVertex(pFeaturelayer);
}
catch (Exception ex)
{
}
}
private void EditMouseDown(IPoint pPnt)
{
try
{
IPolygon pGeompoly;
IPolyline pGeomPolyline;
IHitTest pHtTest;
IPoint pPtHit;
double pDblHitDis = 0;
int pLngPrtIdx = 0;
int pLngSegIdx = 0;
Boolean pBoolHitRt = false;
Boolean pBoolHitTest = false;
double pDblSrchDis = 0;
pPnt.Z = 0;
pPtHit = new PointClass();
pDblSrchDis = m_activeView.Extent.Width / 200;
//获取编辑目标图层
IFeatureLayer pFeatLyr = m_EngineEditLayers.TargetLayer;
if (pFeatLyr == null)
{
return;
}
IFeatureCursor pFeatCur = MapManager.GetSelectedFeatures(pFeatLyr);
IFeature pTFeature = pFeatCur.NextFeature();
switch (pTFeature.Shape.GeometryType)
{
//当为单点、点集时直接返回
case esriGeometryType.esriGeometryPoint:
case esriGeometryType.esriGeometryMultipoint:
return;
//线要素
case esriGeometryType.esriGeometryLine:
case esriGeometryType.esriGeometryPolyline:
m_pHitElem = new LineElementClass();
break;
//面要素
case esriGeometryType.esriGeometryPolygon:
case esriGeometryType.esriGeometryEnvelope:
m_pHitElem = new PolygonElementClass();
break;
}
//获取选中要素的几何对象
m_pHitElem.Geometry = pTFeature.Shape;
if (m_pHitElem != null)
{
switch (pTFeature.Shape.GeometryType)
{
case esriGeometryType.esriGeometryLine:
case esriGeometryType.esriGeometryPolyline:
pGeomPolyline = m_pHitElem.Geometry as IPolyline;
pHtTest = pGeomPolyline as IHitTest;
pBoolHitTest = pHtTest.HitTest(pPnt, pDblSrchDis,
esriGeometryHitPartType.esriGeometryPartVertex, pPtHit,
ref pDblHitDis, ref pLngPrtIdx, ref pLngSegIdx, ref pBoolHitRt);
if (pBoolHitTest)
{
EditVertexClass.pHitPnt = pPtHit;
m_editDispFeed = new LineMovePointFeedbackClass();
m_editDispFeed.Display = m_activeView.ScreenDisplay;
m_polylineMvPtFeed = m_editDispFeed as ILineMovePointFeedback;
m_polylineMvPtFeed.Start(pGeomPolyline, pLngSegIdx, pPnt);
}
break;
case esriGeometryType.esriGeometryPolygon:
case esriGeometryType.esriGeometryEnvelope:
pGeompoly = m_pHitElem.Geometry as IPolygon;
pHtTest = pGeompoly as IHitTest;
pBoolHitTest = pHtTest.HitTest(pPnt, pDblSrchDis,
esriGeometryHitPartType.esriGeometryPartVertex,
pPtHit, ref pDblHitDis, ref pLngPrtIdx, ref pLngSegIdx, ref pBoolHitRt);
EditVertexClass.pHitPnt = pPtHit;
if (pBoolHitTest)
{
//定义获取到的与传入点的最近所选地物
IFeature pFeature;
//定义测量距离用于捕获离点最近的地物
double pTestDist = 0;
//用于求点与地物的距离
IProximityOperator pProximity;
IGeometry pGeoM;
IFeature pTestFeature;
//用于最短距离的比较
double pTempDist = 0;
IFeatureCursor pSelected;
ITopologicalOperator pTopoOpt;
//捕捉到的要移动的节点
IPoint pSnapVertex = default(IPoint);
//从所选地物中获得离点最近的那个地物
pFeature = null;
//用鼠标点进行运算
pTopoOpt = pPnt as ITopologicalOperator;
pTopoOpt.Simplify();
pProximity = pPnt as IProximityOperator;
pSelected = MapManager.GetSelectedFeatures(pFeatLyr);
pTestFeature = pSelected.NextFeature();
pGeoM = pTestFeature.Shape;
pTestDist = pProximity.ReturnDistance(pGeoM);
pFeature = pTestFeature;
//从所选地物中获得离点最近的那个地物
while (pTestFeature != null)
{
pTestFeature = pSelected.NextFeature();
if (pTestFeature != null)
{
pGeoM = pTestFeature.Shape;
pTempDist = pProximity.ReturnDistance(pGeoM);
if (pTempDist < pTestDist)
{
pTestDist = pTempDist;
pFeature = pTestFeature;
}
}
}
//检查pSnapPoint是否是所选地物中的某个图斑的一个节点
double pDblHDis = 0;
int pLngVertexIdx = 0;
int pLngSIdx = 0;
bool pBoolHRt = false;
bool pBlnGet = false;
double pDblDistMin = 0;
pDblDistMin = pTempDist;
if (pDblDistMin == 0)
{
pDblDistMin = 3;
}
//两倍可以保证一般一次找的到
double pDblSearchRadius = pDblDistMin * 2;
IHitTest pHT = default(IHitTest);
pHT = pFeature.Shape as IHitTest;
//如果pSnapPoint不是pTempParcel的节点
if (EditVertexClass.GetVertexIndex(pPnt, pFeature.Shape) == -2)
{
pSnapVertex = new Point();
while (!pBlnGet)
{
pBlnGet = pHT.HitTest(pPnt, pDblSearchRadius,
esriGeometryHitPartType.esriGeometryPartVertex,
pSnapVertex, ref pDblHDis, ref pLngVertexIdx, ref pLngSIdx, ref pBoolHRt);
pDblSearchRadius = pDblSearchRadius + pDblDistMin;
}
EditVertexClass.pHitPnt = pSnapVertex;
//如果pSnapVertex仍然不是pTempParcel的节点
if (EditVertexClass.GetVertexIndex(pSnapVertex, pFeature.Shape) == -2)
{
MessageBox.Show("所想移动的起点不是所选面的节点", "提示",
MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
m_fromPoint = pSnapVertex;
}
else
{
pSnapVertex = pPnt;
m_fromPoint = pSnapVertex;
}
//找到包含所要移动的节点的图形,在该过程里面对m_FeatArray进行了赋值
EditVertexClass.SelectByShapeTop(pFeatLyr, pSnapVertex, esriSpatialRelEnum.esriSpatialRelTouches,
false, esriSelectionResultEnum.esriSelectionResultNew);
m_editDispFeed = new PolygonMovePointFeedbackClass();
m_editDispFeed.Display = m_activeView.ScreenDisplay;
m_polyMvPtFeed = m_editDispFeed as IPolygonMovePointFeedback;
m_polyMvPtFeed.Start(pGeompoly, pLngSegIdx, pPnt);
}
break;
}
}
}
catch (Exception ex)
{
}
}
