public static System.Collections.Generic.List <IFeature> Split(IFeature ifeature_0, IPolyline ipolyline_0)
{
System.Collections.Generic.List <IFeature> list = new System.Collections.Generic.List <IFeature>();
ITopologicalOperator4 topologicalOperator = ifeature_0.ShapeCopy as ITopologicalOperator4;
IGeometry geometry = topologicalOperator.Intersect(ipolyline_0, esriGeometryDimension.esriGeometry0Dimension);
System.Collections.Generic.List <IFeature> list2 = new System.Collections.Generic.List <IFeature>();
ZDEditTools.StartEditDateTime = System.DateTime.Now;
if (geometry.IsEmpty)
{
IGeometry geometry2;
IGeometry geometry3;
topologicalOperator.Cut(ipolyline_0, out geometry2, out geometry3);
if (geometry2 != null && geometry3 != null)
{
IFeature ifeature_ = ZDEditTools.WriteHistory(ifeature_0);
IFeature feature = ZDEditTools.ZDFeatureClass.CreateFeature();
list.Add(feature);
feature.Shape = geometry2;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature);
feature.Store();
ZDEditTools.Oids.Add(feature.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature, ifeature_, 2, ZDEditTools.StartEditDateTime);
feature = ZDEditTools.ZDFeatureClass.CreateFeature();
list.Add(feature);
feature.Shape = geometry3;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature);
feature.Store();
ZDEditTools.Oids.Add(feature.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature, ifeature_, 2, ZDEditTools.StartEditDateTime);
ifeature_0.Delete();
}
}
else if (geometry is IMultipoint && (geometry as IPointCollection).PointCount > 1)
{
ISpatialFilter spatialFilter = new SpatialFilter();
spatialFilter.Geometry = ipolyline_0;
spatialFilter.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
IFeatureCursor featureCursor = (ifeature_0.Class as IFeatureClass).Search(spatialFilter, false);
for (IFeature feature2 = featureCursor.NextFeature();
feature2 != null;
feature2 = featureCursor.NextFeature())
{
if (feature2.OID != ifeature_0.OID)
{
list2.Add(feature2);
}
}
ComReleaser.ReleaseCOMObject(featureCursor);
int pointCount = (geometry as IPointCollection).PointCount;
IPoint ipoint_ = (geometry as IPointCollection).get_Point(0);
IPoint ipoint_2 = (geometry as IPointCollection).get_Point(pointCount - 1);
foreach (IFeature current in list2)
{
ZDEditTools.HitTest(current, ipoint_);
ZDEditTools.HitTest(current, ipoint_2);
}
IGeometryCollection geometryCollection = topologicalOperator.Cut2(ipolyline_0);
System.DateTime startEditDateTime = ZDEditTools.StartEditDateTime;
IFeature ifeature_ = ZDEditTools.WriteHistory(ifeature_0);
for (int i = 0; i < geometryCollection.GeometryCount; i++)
{
IGeometry shape = geometryCollection.get_Geometry(i);
IFeature feature = ZDEditTools.ZDFeatureClass.CreateFeature();
list.Add(feature);
feature.Shape = shape;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature);
feature.Store();
ZDEditTools.Oids.Add(feature.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature, ifeature_, 2, startEditDateTime);
}
ifeature_0.Delete();
}
return(list);
}
public static List <IFeature> Split(IFeature ifeature_0, IPolyline ipolyline_0)
{
IGeometry geometry;
IGeometry geometry1;
IFeature feature;
IFeature feature1;
List <IFeature> features = new List <IFeature>();
ITopologicalOperator4 shapeCopy = ifeature_0.ShapeCopy as ITopologicalOperator4;
IGeometry geometry2 = shapeCopy.Intersect(ipolyline_0, esriGeometryDimension.esriGeometry0Dimension);
List <IFeature> features1 = new List <IFeature>();
ZDEditTools.StartEditDateTime = DateTime.Now;
if (geometry2.IsEmpty)
{
shapeCopy.Cut(ipolyline_0, out geometry, out geometry1);
if ((geometry == null ? false : geometry1 != null))
{
feature = ZDEditTools.WriteHistory(ifeature_0);
feature1 = ZDEditTools.ZDFeatureClass.CreateFeature();
features.Add(feature1);
feature1.Shape = geometry;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature1);
feature1.Store();
ZDEditTools.Oids.Add(feature1.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature1, feature, 2, ZDEditTools.StartEditDateTime);
feature1 = ZDEditTools.ZDFeatureClass.CreateFeature();
features.Add(feature1);
feature1.Shape = geometry1;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature1);
feature1.Store();
ZDEditTools.Oids.Add(feature1.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature1, feature, 2, ZDEditTools.StartEditDateTime);
ifeature_0.Delete();
}
}
else if ((!(geometry2 is IMultipoint) ? false : (geometry2 as IPointCollection).PointCount > 1))
{
ISpatialFilter spatialFilterClass = new SpatialFilter()
{
Geometry = ipolyline_0,
SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects
};
IFeatureCursor featureCursor = (ifeature_0.Class as IFeatureClass).Search(spatialFilterClass, false);
for (IFeature i = featureCursor.NextFeature(); i != null; i = featureCursor.NextFeature())
{
if (i.OID != ifeature_0.OID)
{
features1.Add(i);
}
}
ComReleaser.ReleaseCOMObject(featureCursor);
int pointCount = (geometry2 as IPointCollection).PointCount;
IPoint point = (geometry2 as IPointCollection).Point[0];
IPoint point1 = (geometry2 as IPointCollection).Point[pointCount - 1];
foreach (IFeature feature2 in features1)
{
ZDEditTools.HitTest(feature2, point);
ZDEditTools.HitTest(feature2, point1);
}
IGeometryCollection geometryCollection = shapeCopy.Cut2(ipolyline_0);
DateTime startEditDateTime = ZDEditTools.StartEditDateTime;
feature = ZDEditTools.WriteHistory(ifeature_0);
for (int j = 0; j < geometryCollection.GeometryCount; j++)
{
IGeometry geometry3 = geometryCollection.Geometry[j];
feature1 = ZDEditTools.ZDFeatureClass.CreateFeature();
features.Add(feature1);
feature1.Shape = geometry3;
RowOperator.CopyFeatureAttributeToFeature(ifeature_0, feature1);
feature1.Store();
ZDEditTools.Oids.Add(feature1.OID);
ZDEditTools.WriteHistoryLine(ifeature_0, feature1, feature, 2, startEditDateTime);
}
ifeature_0.Delete();
}
return(features);
}
private List <IGeometry> splitGeometry(IGeometry geo, bool mergePolys)
{
IGeometry geoM = null;
if (mergePolys)
{
geoM = mergeSmallGeos(geo);
}
else
{
geoM = geo;
}
List <IGeometry> geoLst = new List <IGeometry>();
IPolygon4 poly4 = (IPolygon4)geoM;
IGeometryCollection geoColl = (IGeometryCollection)poly4.ConnectedComponentBag;
for (int i = 0; i < geoColl.GeometryCount; i++)
{
IGeometry geo2 = geoColl.get_Geometry(i);
IEnvelope env = geo2.Envelope;
double xmax = env.XMax;
double xmin = env.XMin;
double ymax = env.YMax;
double ymin = env.YMin;
double xRange = xmax - xmin;
double yRange = ymax - ymin;
double nMinX, nMinY, nMaxX, nMaxY;
if (xRange > yRange)
{
nMinY = ymin - 1;
nMaxY = ymax + 1;
nMinX = xmin + (xRange / 2);
nMaxX = nMinX;
}
else
{
nMinX = xmin - 1;
nMaxX = xmax + 1;
nMinY = ymin + (yRange / 2);
nMaxY = nMinY;
}
WKSPoint[] wksPoint = new WKSPoint[2];
IPointCollection4 pointCollection4 = new PolylineClass();
wksPoint[0].X = nMinX;
wksPoint[0].Y = nMinY;
wksPoint[1].X = nMaxX;
wksPoint[1].Y = nMaxY;
IGeometryBridge2 geometryBridge2 = new GeometryEnvironmentClass();
geometryBridge2.AddWKSPoints(pointCollection4, ref wksPoint);
IPolyline polyline = pointCollection4 as ESRI.ArcGIS.Geometry.IPolyline;
polyline.SpatialReference = geo2.SpatialReference;
ITopologicalOperator4 tp = (ITopologicalOperator4)geo2;
IGeometry geoL = null;
IGeometry geoR = null;
try
{
tp.Cut(polyline, out geoL, out geoR);
if (((IArea)geoL).Area > maxarea)
{
geoLst.AddRange(splitGeometry(geoL, false));
}
else
{
geoLst.Add(geoL);
}
if (((IArea)geoR).Area > maxarea)
{
geoLst.AddRange(splitGeometry(geoR, false));
}
else
{
geoLst.Add(geoR);
}
}
catch (Exception e)
{
geoLst.Add(geo2);
Console.WriteLine(e.ToString());
}
}
return(geoLst);
}
