public void OnDblClick()
{
try
{
IEngineEditor engineEditor = Editor.UniqueInstance.EngineEditor;
IEngineEditSketch sketch = Editor.UniqueInstance.EngineEditor as IEngineEditSketch;
IGeometry other = sketch.Geometry;
if (this.m_Feature == null)
{
MessageBox.Show("当前无要素可进行挖空！", "提示");
Editor.UniqueInstance.CancleSketch();
}
else
{
if (other.SpatialReference != this.m_Feature.Shape.SpatialReference)
{
other.Project(this.m_Feature.Shape.SpatialReference);
other.SpatialReference = this.m_Feature.Shape.SpatialReference;
}
ITopologicalOperator2 @operator = other as ITopologicalOperator2;
@operator.IsKnownSimple_2 = false;
@operator.Simplify();
ITopologicalOperator2 shapeCopy = this.m_Feature.ShapeCopy as ITopologicalOperator2;
shapeCopy.IsKnownSimple_2 = false;
shapeCopy.Simplify();
IGeometry geometry2 = shapeCopy.Difference(other);
Editor.UniqueInstance.StartEditOperation();
this.m_Feature.Shape = geometry2;
this.m_Feature.Store();
Editor.UniqueInstance.StopEditOperation("erase");
Editor.UniqueInstance.CancleSketch();
this.m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection | esriViewDrawPhase.esriViewGeography, null, null);
}
}
catch
{
Editor.UniqueInstance.CancleSketch();
}
}
private IList <IGeometry> GetGeometrys(IGeometry pGeo)
{
IList <IGeometry> list = new List <IGeometry>();
try
{
if (pGeo.GeometryType == esriGeometryType.esriGeometryPolyline)
{
IGeometryCollection geometrys = pGeo as IGeometryCollection;
int geometryCount = geometrys.GeometryCount;
for (int i = 0; i < geometryCount; i++)
{
IGeometry inGeometry = geometrys.get_Geometry(i);
if (!inGeometry.IsEmpty)
{
IGeometryCollection geometrys2 = new PolylineClass();
object missing = System.Type.Missing;
geometrys2.AddGeometry(inGeometry, ref missing, ref missing);
IGeometry item = geometrys2 as IGeometry;
item.SpatialReference = pGeo.SpatialReference;
list.Add(item);
}
}
return(list);
}
if (pGeo.GeometryType == esriGeometryType.esriGeometryPolygon)
{
IPolygon4 polygon = pGeo as IPolygon4;
if (polygon.ExteriorRingCount < 2)
{
list.Add(pGeo);
return(list);
}
IEnumGeometry exteriorRingBag = polygon.ExteriorRingBag as IEnumGeometry;
exteriorRingBag.Reset();
for (IRing ring = exteriorRingBag.Next() as IRing; ring != null; ring = exteriorRingBag.Next() as IRing)
{
IGeometryBag bag2 = polygon.get_InteriorRingBag(ring);
object before = System.Type.Missing;
IGeometryCollection geometrys3 = null;
geometrys3 = new PolygonClass();
geometrys3.AddGeometry(ring, ref before, ref before);
IPolygon polygon2 = geometrys3 as IPolygon;
polygon2.SpatialReference = pGeo.SpatialReference;
ITopologicalOperator2 @operator = (ITopologicalOperator2)polygon2;
@operator.IsKnownSimple_2 = false;
@operator.Simplify();
if (!bag2.IsEmpty)
{
IGeometryCollection geometrys4 = new PolygonClass();
IEnumGeometry geometry4 = bag2 as IEnumGeometry;
geometry4.Reset();
for (IRing ring2 = geometry4.Next() as IRing; ring2 != null; ring2 = geometry4.Next() as IRing)
{
geometrys4.AddGeometry(ring2, ref before, ref before);
}
IPolygon other = geometrys4 as IPolygon;
other.SpatialReference = pGeo.SpatialReference;
ITopologicalOperator2 operator2 = (ITopologicalOperator2)other;
operator2.IsKnownSimple_2 = false;
operator2.Simplify();
IGeometry geometry5 = @operator.Difference(other);
list.Add(geometry5);
}
else
{
list.Add(polygon2);
}
}
}
return(list);
}
catch
{
return(null);
}
return(list);
}
public void OnMouseDown(int button, int shift, int x, int y)
{
if (button != 2)
{
try
{
IPoint pGeometry = this.m_hookHelper.ActiveView.ScreenDisplay.DisplayTransformation.ToMapPoint(x, y);
IFeatureClass featureClass = Editor.UniqueInstance.TargetLayer.FeatureClass;
ISpatialFilter queryFilter = new SpatialFilterClass {
Geometry = pGeometry,
GeometryField = featureClass.ShapeFieldName,
SubFields = featureClass.OIDFieldName,
SpatialRel = esriSpatialRelEnum.esriSpatialRelWithin
};
IFeatureCursor o = Editor.UniqueInstance.TargetLayer.Search(queryFilter, false);
IFeature feature = o.NextFeature();
IFeature feature2 = o.NextFeature();
Marshal.ReleaseComObject(o);
o = null;
if ((feature != null) && (feature2 != null))
{
feature = Editor.UniqueInstance.TargetLayer.FeatureClass.GetFeature(feature.OID);
feature2 = Editor.UniqueInstance.TargetLayer.FeatureClass.GetFeature(feature2.OID);
ITopologicalOperator2 shape = feature.Shape as ITopologicalOperator2;
IGeometry geometry1 = feature2.Shape;
IGeometry other = shape.Intersect(feature2.Shape, esriGeometryDimension.esriGeometry2Dimension);
if (!other.IsEmpty)
{
pGeometry = GISFunFactory.UnitFun.ConvertPoject(pGeometry, other.SpatialReference) as IPoint;
IGeometryCollection geometrys = other as IGeometryCollection;
if (geometrys.GeometryCount > 1)
{
for (int i = 0; i < geometrys.GeometryCount; i++)
{
IGeometry inGeometry = geometrys.get_Geometry(i);
if (!inGeometry.IsEmpty)
{
if (inGeometry.GeometryType == esriGeometryType.esriGeometryRing)
{
object missing = System.Type.Missing;
IGeometryCollection geometrys2 = new PolygonClass();
geometrys2.AddGeometry(inGeometry, ref missing, ref missing);
IPolygon polygon = geometrys2 as IPolygon;
inGeometry = polygon;
}
IRelationalOperator operator2 = inGeometry as IRelationalOperator;
if ((operator2 != null) && operator2.Contains(pGeometry))
{
other = inGeometry;
break;
}
}
}
}
else
{
IRelationalOperator operator3 = other as IRelationalOperator;
if (!operator3.Contains(pGeometry))
{
return;
}
}
feature = Editor.UniqueInstance.TargetLayer.FeatureClass.GetFeature(feature.OID);
feature2 = Editor.UniqueInstance.TargetLayer.FeatureClass.GetFeature(feature2.OID);
if (other.GeometryType != esriGeometryType.esriGeometryPolygon)
{
IPolygon polygon2 = new PolygonClass {
SpatialReference = other.SpatialReference
};
IPointCollection newPoints = other as IPointCollection;
(polygon2 as IPointCollection).AddPointCollection(newPoints);
other = polygon2;
}
Editor.UniqueInstance.StartEditOperation();
ITopologicalOperator2 operator4 = feature.Shape as ITopologicalOperator2;
IGeometry geometry3 = operator4.Difference(other);
if (geometry3.IsEmpty)
{
feature.Delete();
}
else
{
feature.Shape = geometry3;
feature.Store();
}
geometry3 = (feature2.Shape as ITopologicalOperator2).Difference(other);
if (geometry3.IsEmpty)
{
feature2.Delete();
}
else
{
feature2.Shape = geometry3;
feature2.Store();
}
Editor.UniqueInstance.StopEditOperation();
(Editor.UniqueInstance.TargetLayer as IFeatureSelection).Clear();
this.m_hookHelper.ActiveView.PartialRefresh(esriViewDrawPhase.esriViewGeoSelection | esriViewDrawPhase.esriViewGeography, null, this.m_hookHelper.ActiveView.Extent);
MessageBox.Show("修改完成！", "提示");
}
}
}
catch (Exception exception)
{
Editor.UniqueInstance.AbortEditOperation();
this.mErrOpt.ErrorOperate(this.mSubSysName, "ShapeEdit.OverlapDelete", "OnMouseDown", exception.GetHashCode().ToString(), exception.Source, exception.Message, "", "", "");
MessageBox.Show("修改出错！", "提示");
}
}
}