private bool updatePolygon(IFeatureClass ftrCls, int oid)
{
bool x = false;
IGeometry geo = ftrCls.GetFeature(oid).ShapeCopy;
ISpatialFilter spFlt = new SpatialFilterClass();
spFlt.WhereClause = ftrCls.OIDFieldName + " <> " + oid.ToString();
spFlt.SpatialRel = esriSpatialRelEnum.esriSpatialRelIntersects;
IQueryFilterDefinition2 qryDef2 = (IQueryFilterDefinition2)spFlt;
qryDef2.PostfixClause = "Order by Shape_Area DESC";
spFlt.Geometry = geo;
spFlt.GeometryField = ftrCls.ShapeFieldName;
spFlt.SearchOrder = esriSearchOrder.esriSearchOrderSpatial;
IFeatureCursor ftrCur = ftrCls.Search(spFlt, false);
int shapeAreaIndex = ftrCur.FindField("Shape_Area");
IFeature ftr = ftrCur.NextFeature();
while (ftr != null)
{
IGeometry geoMax = ftr.ShapeCopy;
int beforeCnt = ((IGeometryCollection)geoMax).GeometryCount;
ITopologicalOperator4 tp = (ITopologicalOperator4)geoMax;
IGeometry uGeo = tp.Union(geo);
int afterCnt = ((IGeometryCollection)uGeo).GeometryCount;
if (beforeCnt >= afterCnt)
{
try
{
ftr.Shape = uGeo;
if (shapeAreaEdit)
{
ftr.set_Value(shapeAreaIndex, ((IArea)uGeo).Area);
}
ftr.Store();
x = true;
return(x);
}
catch (Exception e)
{
x = false;
Console.WriteLine(e.ToString());
return(x);
}
}
ftr = ftrCur.NextFeature();
}
return(x);
}
public static IFeature Union(List <IFeature> list_0)
{
ITopologicalOperator4 shapeCopy = null;
IGeometry geometry = null;
List <IFeature> features = new List <IFeature>();
foreach (IFeature list0 in list_0)
{
features.Add(ZDEditTools.WriteHistory(list0));
if (shapeCopy != null)
{
geometry = shapeCopy.Union(list0.ShapeCopy);
shapeCopy = geometry as ITopologicalOperator4;
}
else
{
shapeCopy = list0.ShapeCopy as ITopologicalOperator4;
}
}
IFeature feature = ZDEditTools.ZDFeatureClass.CreateFeature();
feature.Shape = geometry;
RowOperator.CopyFeatureAttributeToFeature(list_0[0], feature);
feature.Store();
(ZDEditTools.ZDFeatureClass as IDataset).Name.Split(new char[] { '.' });
ZDHistoryTable zDHistoryTable = new ZDHistoryTable();
ZDEditTools.StartEditDateTime = DateTime.Now;
int num = 0;
foreach (IFeature list01 in list_0)
{
int num1 = num;
num = num1 + 1;
ZDEditTools.WriteHistoryLine(list01, feature, features[num1], 1, ZDEditTools.StartEditDateTime);
list01.Delete();
}
ZDEditTools.Oids.Add(feature.OID);
return(feature);
}
public static IFeature Union(System.Collections.Generic.List <IFeature> list_0)
{
ITopologicalOperator4 topologicalOperator = null;
IGeometry geometry = null;
System.Collections.Generic.List <IFeature> list = new System.Collections.Generic.List <IFeature>();
foreach (IFeature current in list_0)
{
list.Add(ZDEditTools.WriteHistory(current));
if (topologicalOperator == null)
{
topologicalOperator = (current.ShapeCopy as ITopologicalOperator4);
}
else
{
geometry = topologicalOperator.Union(current.ShapeCopy);
topologicalOperator = (geometry as ITopologicalOperator4);
}
}
IFeature feature = ZDEditTools.ZDFeatureClass.CreateFeature();
feature.Shape = geometry;
RowOperator.CopyFeatureAttributeToFeature(list_0[0], feature);
feature.Store();
(ZDEditTools.ZDFeatureClass as IDataset).Name.Split(new char[]
{
'.'
});
new ZDHistoryTable();
ZDEditTools.StartEditDateTime = System.DateTime.Now;
int num = 0;
foreach (IFeature current in list_0)
{
ZDEditTools.WriteHistoryLine(current, feature, list[num++], 1, ZDEditTools.StartEditDateTime);
current.Delete();
}
ZDEditTools.Oids.Add(feature.OID);
return(feature);
}