public static void ShowAllVertex(IFeatureLayer pFeatLyr)
{
m_vertexGeoBag = null;
if (pFeatLyr == null)
{
return;
}
IFeatureCursor pFeatureCursor = MapManager.GetSelectedFeatures(pFeatLyr);
if (pFeatureCursor == null)
{
return;
}
IFeature pTFeature = null;
//得到要显示节点的地物
pTFeature = pFeatureCursor.NextFeature();
if (pTFeature == null)
{
return;
}
//只选中一个地物进行节点移动
m_Map.ClearSelection();
m_Map.SelectFeature(pFeatLyr as ILayer, pTFeature);
m_activeView.Refresh();
//如果为点状地物，不显示节点
if (pTFeature.Shape.GeometryType == esriGeometryType.esriGeometryPoint)
{
return;
}
IArray pFeatureArray = null;
pFeatureArray = new ESRI.ArcGIS.esriSystem.Array();
pFeatureArray.Add(pTFeature);
//绘图符号初始化
SymbolInit();
IFeature pFeature = default(IFeature);
IPointCollection pPointCol = default(IPointCollection);
IPoint pPoint = default(IPoint);
int i = 0; int j = 0;
m_vertexGeoBag = new GeometryBagClass();
for (i = 0; i <= pFeatureArray.Count - 1; i++)
{
pFeature = pFeatureArray.get_Element(i) as IFeature;
//获取图形边界的点集
pPointCol = pFeature.ShapeCopy as IPointCollection;
for (j = 0; j <= pPointCol.PointCount - 1; j++)
{
pPoint = pPointCol.get_Point(j);
if (j == 0 | j == pPointCol.PointCount - 1)
{
//两个端点的ID设为10
pPoint.ID = 10;
}
else
{
//中间点的ID设为100
pPoint.ID = 100;
}
IColor pColor = null;
object obj = Type.Missing;
//显示节点
if (pPoint == pHitPnt)
{
DisplayGraphic(pPoint, pColor, m_selPointSym as ISymbol);
}
if (j == 0 || j == pPointCol.PointCount - 1)
{
DisplayGraphic(pPoint, pColor, m_endPointSym as ISymbol);
}
else
{
DisplayGraphic(pPoint, pColor, m_vertexSym as ISymbol);
}
m_vertexGeoBag.AddGeometry(pPoint, ref obj, ref obj);
}
}
Marshal.ReleaseComObject(pFeatureCursor);
}
public void OnMouseUp(int button, int shift, int x, int y)
{
if (shift == 0)
{
//清除所有选择的内容
m_Map.ClearSelection();
m_activeView.Refresh();
}
if (button != 1)
{
return;
}
try
{
if (m_EngineEditor == null)
{
return;
}
if (m_EngineEditor.EditState != esriEngineEditState.esriEngineStateEditing)
{
return;
}
if (m_EngineEditLayers == null)
{
return;
}
//获取目标图层
IFeatureLayer pFeatLyr = m_EngineEditLayers.TargetLayer;
IFeatureClass pFeatCls = pFeatLyr.FeatureClass;
//MapControl axMapControl1 = Control.FromHandle(new IntPtr(this.m_hookHelper.ActiveView.ScreenDisplay.hWnd)) as MapControl;
IMapControl4 axMapControl1 = GlobalVars.instance.MapControl;
IEnvelope pEnvelope = axMapControl1.TrackRectangle();
IGeometry pGeometry = null;
//当点选的情况时，Envelope为空，此时建立缓冲区
if (pEnvelope.IsEmpty == true)
{
IPoint point = m_activeView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);
//定义缓冲区
double db = MapManager.ConvertPixelsToMapUnits(m_activeView, 4);
ITopologicalOperator pTop;
pTop = point as ITopologicalOperator;
pGeometry = pTop.Buffer(db);
}
else
{
pGeometry = pEnvelope as IGeometry;
}
//设置选择过滤条件
ISpatialFilter pSpatialFilter = new SpatialFilterClass();
//不同的图层类型设置不同的过滤条件
switch (pFeatCls.ShapeType)
{
case esriGeometryType.esriGeometryPoint:
//将像素距离转换为地图单位距离
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelContains;
break;
case esriGeometryType.esriGeometryPolygon:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
break;
case esriGeometryType.esriGeometryPolyline:
pSpatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
break;
}
pSpatialFilter.Geometry = pGeometry;
pSpatialFilter.GeometryField = pFeatCls.ShapeFieldName;
IQueryFilter pQueryFilter = pSpatialFilter as IQueryFilter;
//根据过滤条件进行查询
IFeatureCursor pFeatCursor = pFeatCls.Search(pQueryFilter, false);
IFeature pFeature = pFeatCursor.NextFeature();
IFeatureSelection pFeatureSelection;
pFeatureSelection = pFeatLyr as IFeatureSelection;
IEnumFeature pEnumFeature2 = m_Map.FeatureSelection as IEnumFeature;//已经选择的选择集
int a = pFeatureSelection.SelectionSet.Count;
pEnumFeature2.Reset();
IFeature pFeature2 = pEnumFeature2.Next();
//遍历整个要素类中符合条件的要素
while (pFeature != null)
{
if (pFeature2 == null)
{
pFeatureSelection.SelectFeatures(pQueryFilter, esriSelectionResultEnum.esriSelectionResultAdd, false);
break;
}
//遍历当前选择的要素
while (pFeature2 != null)
{
IRelationalOperator re = (IRelationalOperator)pFeature.Shape;
if (re.Equals(pFeature2.Shape))
{
pFeatureSelection.SelectFeatures(pQueryFilter, esriSelectionResultEnum.esriSelectionResultSubtract, false);
break;
}
else
{
m_Map.SelectFeature(pFeatLyr as ILayer, pFeature);
}
pFeature2 = pEnumFeature2.Next();
}
pFeature = pFeatCursor.NextFeature();
}
m_activeView.PartialRefresh(esriViewDrawPhase.esriViewAll, null, null);
System.Runtime.InteropServices.Marshal.ReleaseComObject(pFeatCursor);
}
catch (Exception ex)
{
//SysLogHelper.WriteOperationLog("选择要素错误", ex.Source, "数据编辑");
}
}