private void GetSelctionSet(IFeatureLayer pFeatureLayer, IGeometry pGeometry, bool bjustone, int Shift)
{
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
//没开启编辑的不可选择
IDataset pDataset = pFeatureClass as IDataset;
IWorkspaceEdit pWorkspaceEdit = pDataset.Workspace as IWorkspaceEdit;
if (!pWorkspaceEdit.IsBeingEdited())
{
return;
}
switch (Shift)
{
case 1: //增加选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultAdd, bjustone);
break;
case 4: //减少选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultSubtract, bjustone);
break;
case 2:
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultXOR, bjustone);
break;
default: //新建选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultNew, bjustone);
break;
}
}
public override void OnMouseDown(int Button, int Shift, int X, int Y)
{
if (Button != 1)
{
return;
}
//设置点选择容差
ISelectionEnvironment pSelectEnv = new SelectionEnvironmentClass();
double Length = ModPublic.ConvertPixelsToMapUnits(m_hookHelper.ActiveView, pSelectEnv.SearchTolerance);
IPoint pPoint = m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(X, Y);
IGeometry pGeometry = pPoint as IGeometry;
ITopologicalOperator pTopo = pGeometry as ITopologicalOperator;
IGeometry pBuffer = pTopo.Buffer(Length);
//仅与框架别界相交地物会被选取
pGeometry = m_MapControl.TrackRectangle() as IGeometry;
bool bjustone = true;
if (pGeometry != null)
{
if (pGeometry.IsEmpty)
{
pGeometry = pBuffer;
}
else
{
bjustone = false;
}
}
else
{
pGeometry = pBuffer;
}
UID pUID = new UIDClass();
pUID.Value = "{40A9E885-5533-11d0-98BE-00805F7CED21}"; //UID for IFeatureLayer
IEnumLayer pEnumLayer = m_MapControl.Map.get_Layers(pUID, true);
pEnumLayer.Reset();
ILayer pLayer = pEnumLayer.Next();
while (pLayer != null)
{
IFeatureLayer pFeatureLayer = pLayer as IFeatureLayer;
IFeatureClass pFeatureClass = pFeatureLayer.FeatureClass;
if (pFeatureClass.ObjectClassID != ControlsAttribute.m_CurFeatCls.ObjectClassID)
{
pLayer = pEnumLayer.Next();
continue;
}
switch (Shift)
{
case 1: //增加选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultAdd, bjustone);
break;
case 4: //减少选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultSubtract, bjustone);
break;
case 2:
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultXOR, bjustone);
break;
default: //新建选择结果集
ModPublic.GetSelctionSet(pFeatureLayer, pGeometry, pFeatureClass, esriSelectionResultEnum.esriSelectionResultNew, bjustone);
break;
}
pLayer = pEnumLayer.Next();
}
//刷新
m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection, null, m_hookHelper.ActiveView.Extent);
}